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提交 8181d3ef 编写于 作者: P Paul Mundt
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Merge branch 'master' of... 

Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 into sh-fixes-for-linus
上级 54525552 55922c9d
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文本差异 电子邮件补丁
.gitignore
浏览文件 @ 8181d3ef
......@@ -57,6 +57,7 @@ modules.builtin
include/config
include/linux/version.h
include/generated
arch/*/include/generated
# stgit generated dirs
patches-*
......
.mailmap
浏览文件 @ 8181d3ef
......@@ -32,6 +32,7 @@ Brian Avery <b.avery@hp.com>
Brian King <brking@us.ibm.com>
Christoph Hellwig <hch@lst.de>
Corey Minyard <minyard@acm.org>
Damian Hobson-Garcia <dhobsong@igel.co.jp>
David Brownell <david-b@pacbell.net>
David Woodhouse <dwmw2@shinybook.infradead.org>
Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
......
CREDITS
浏览文件 @ 8181d3ef
......@@ -2943,6 +2943,10 @@ S: Kasarmikatu 11 A4
S: 70110 Kuopio
S: Finland
N: Tobias Ringström
E: tori@unhappy.mine.nu
D: Davicom DM9102(A)/DM9132/DM9801 fast ethernet driver
N: Luca Risolia
E: luca.risolia@studio.unibo.it
P: 1024D/FCE635A4 88E8 F32F 7244 68BA 3958 5D40 99DA 5D2A FCE6 35A4
......@@ -3913,6 +3917,10 @@ S: Flandernstrasse 101
S: D-73732 Esslingen
S: Germany
N: Roman Zippel
E: zippel@linux-m68k.org
D: AFFS and HFS filesystems, m68k maintainer, new kernel configuration in 2.5
N: Leonard N. Zubkoff
W: http://www.dandelion.com/Linux/
D: BusLogic SCSI driver
......
Documentation/00-INDEX
浏览文件 @ 8181d3ef
......@@ -192,10 +192,6 @@ kernel-docs.txt
- listing of various WWW + books that document kernel internals.
kernel-parameters.txt
- summary listing of command line / boot prompt args for the kernel.
keys-request-key.txt
- description of the kernel key request service.
keys.txt
- description of the kernel key retention service.
kobject.txt
- info of the kobject infrastructure of the Linux kernel.
kprobes.txt
......@@ -294,6 +290,8 @@ scheduler/
- directory with info on the scheduler.
scsi/
- directory with info on Linux scsi support.
security/
- directory that contains security-related info
serial/
- directory with info on the low level serial API.
serial-console.txt
......
Documentation/ABI/obsolete/o2cb → Documentation/ABI/removed/o2cb
浏览文件 @ 8181d3ef
What: /sys/o2cb symlink
Date: Dec 2005
KernelVersion: 2.6.16
Date: May 2011
KernelVersion: 2.6.40
Contact: ocfs2-devel@oss.oracle.com
Description: This is a symlink: /sys/o2cb to /sys/fs/o2cb. The symlink will
be removed when new versions of ocfs2-tools which know to look
Description: This is a symlink: /sys/o2cb to /sys/fs/o2cb. The symlink is
removed when new versions of ocfs2-tools which know to look
in /sys/fs/o2cb are sufficiently prevalent. Don't code new
software to look here, it should try /sys/fs/o2cb instead.
See Documentation/ABI/stable/o2cb for more information on usage.
Users: ocfs2-tools. It's sufficient to mail proposed changes to
ocfs2-devel@oss.oracle.com.
Documentation/ABI/testing/sysfs-block
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......@@ -142,3 +142,67 @@ Description:
with the previous I/O request are enabled. When set to 2,
all merge tries are disabled. The default value is 0 -
which enables all types of merge tries.
What: /sys/block/<disk>/discard_alignment
Date: May 2011
Contact: Martin K. Petersen <martin.petersen@oracle.com>
Description:
Devices that support discard functionality may
internally allocate space in units that are bigger than
the exported logical block size. The discard_alignment
parameter indicates how many bytes the beginning of the
device is offset from the internal allocation unit's
natural alignment.
What: /sys/block/<disk>/<partition>/discard_alignment
Date: May 2011
Contact: Martin K. Petersen <martin.petersen@oracle.com>
Description:
Devices that support discard functionality may
internally allocate space in units that are bigger than
the exported logical block size. The discard_alignment
parameter indicates how many bytes the beginning of the
partition is offset from the internal allocation unit's
natural alignment.
What: /sys/block/<disk>/queue/discard_granularity
Date: May 2011
Contact: Martin K. Petersen <martin.petersen@oracle.com>
Description:
Devices that support discard functionality may
internally allocate space using units that are bigger
than the logical block size. The discard_granularity
parameter indicates the size of the internal allocation
unit in bytes if reported by the device. Otherwise the
discard_granularity will be set to match the device's
physical block size. A discard_granularity of 0 means
that the device does not support discard functionality.
What: /sys/block/<disk>/queue/discard_max_bytes
Date: May 2011
Contact: Martin K. Petersen <martin.petersen@oracle.com>
Description:
Devices that support discard functionality may have
internal limits on the number of bytes that can be
trimmed or unmapped in a single operation. Some storage
protocols also have inherent limits on the number of
blocks that can be described in a single command. The
discard_max_bytes parameter is set by the device driver
to the maximum number of bytes that can be discarded in
a single operation. Discard requests issued to the
device must not exceed this limit. A discard_max_bytes
value of 0 means that the device does not support
discard functionality.
What: /sys/block/<disk>/queue/discard_zeroes_data
Date: May 2011
Contact: Martin K. Petersen <martin.petersen@oracle.com>
Description:
Devices that support discard functionality may return
stale or random data when a previously discarded block
is read back. This can cause problems if the filesystem
expects discarded blocks to be explicitly cleared. If a
device reports that it deterministically returns zeroes
when a discarded area is read the discard_zeroes_data
parameter will be set to one. Otherwise it will be 0 and
the result of reading a discarded area is undefined.
Documentation/ABI/testing/sysfs-kernel-mm-cleancache 0 → 100644
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What: /sys/kernel/mm/cleancache/
Date: April 2011
Contact: Dan Magenheimer <dan.magenheimer@oracle.com>
Description:
/sys/kernel/mm/cleancache/ contains a number of files which
record a count of various cleancache operations
(sum across all filesystems):
succ_gets
failed_gets
puts
flushes
Documentation/ABI/testing/sysfs-ptp 0 → 100644
浏览文件 @ 8181d3ef
What: /sys/class/ptp/
Date: September 2010
Contact: Richard Cochran <richardcochran@gmail.com>
Description:
This directory contains files and directories
providing a standardized interface to the ancillary
features of PTP hardware clocks.
What: /sys/class/ptp/ptpN/
Date: September 2010
Contact: Richard Cochran <richardcochran@gmail.com>
Description:
This directory contains the attributes of the Nth PTP
hardware clock registered into the PTP class driver
subsystem.
What: /sys/class/ptp/ptpN/clock_name
Date: September 2010
Contact: Richard Cochran <richardcochran@gmail.com>
Description:
This file contains the name of the PTP hardware clock
as a human readable string.
What: /sys/class/ptp/ptpN/max_adjustment
Date: September 2010
Contact: Richard Cochran <richardcochran@gmail.com>
Description:
This file contains the PTP hardware clock's maximum
frequency adjustment value (a positive integer) in
parts per billion.
What: /sys/class/ptp/ptpN/n_alarms
Date: September 2010
Contact: Richard Cochran <richardcochran@gmail.com>
Description:
This file contains the number of periodic or one shot
alarms offer by the PTP hardware clock.
What: /sys/class/ptp/ptpN/n_external_timestamps
Date: September 2010
Contact: Richard Cochran <richardcochran@gmail.com>
Description:
This file contains the number of external timestamp
channels offered by the PTP hardware clock.
What: /sys/class/ptp/ptpN/n_periodic_outputs
Date: September 2010
Contact: Richard Cochran <richardcochran@gmail.com>
Description:
This file contains the number of programmable periodic
output channels offered by the PTP hardware clock.
What: /sys/class/ptp/ptpN/pps_avaiable
Date: September 2010
Contact: Richard Cochran <richardcochran@gmail.com>
Description:
This file indicates whether the PTP hardware clock
supports a Pulse Per Second to the host CPU. Reading
"1" means that the PPS is supported, while "0" means
not supported.
What: /sys/class/ptp/ptpN/extts_enable
Date: September 2010
Contact: Richard Cochran <richardcochran@gmail.com>
Description:
This write-only file enables or disables external
timestamps. To enable external timestamps, write the
channel index followed by a "1" into the file.
To disable external timestamps, write the channel
index followed by a "0" into the file.
What: /sys/class/ptp/ptpN/fifo
Date: September 2010
Contact: Richard Cochran <richardcochran@gmail.com>
Description:
This file provides timestamps on external events, in
the form of three integers: channel index, seconds,
and nanoseconds.
What: /sys/class/ptp/ptpN/period
Date: September 2010
Contact: Richard Cochran <richardcochran@gmail.com>
Description:
This write-only file enables or disables periodic
outputs. To enable a periodic output, write five
integers into the file: channel index, start time
seconds, start time nanoseconds, period seconds, and
period nanoseconds. To disable a periodic output, set
all the seconds and nanoseconds values to zero.
What: /sys/class/ptp/ptpN/pps_enable
Date: September 2010
Contact: Richard Cochran <richardcochran@gmail.com>
Description:
This write-only file enables or disables delivery of
PPS events to the Linux PPS subsystem. To enable PPS
events, write a "1" into the file. To disable events,
write a "0" into the file.
Documentation/DocBook/Makefile
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......@@ -73,7 +73,7 @@ installmandocs: mandocs
###
#External programs used
KERNELDOC = $(srctree)/scripts/kernel-doc
DOCPROC = $(objtree)/scripts/basic/docproc
DOCPROC = $(objtree)/scripts/docproc
XMLTOFLAGS = -m $(srctree)/Documentation/DocBook/stylesheet.xsl
XMLTOFLAGS += --skip-validation
......
Documentation/DocBook/dvb/dvbproperty.xml
浏览文件 @ 8181d3ef
......@@ -141,13 +141,15 @@ struct dtv_properties {
</row></tbody></tgroup></informaltable>
</section>
<section>
<title>Property types</title>
<para>
On <link linkend="FE_GET_PROPERTY">FE_GET_PROPERTY</link>/<link linkend="FE_SET_PROPERTY">FE_SET_PROPERTY</link>,
the actual action is determined by the dtv_property cmd/data pairs. With one single ioctl, is possible to
get/set up to 64 properties. The actual meaning of each property is described on the next sections.
</para>
<para>The Available frontend property types are:</para>
<para>The available frontend property types are:</para>
<programlisting>
#define DTV_UNDEFINED 0
#define DTV_TUNE 1
......@@ -193,6 +195,7 @@ get/set up to 64 properties. The actual meaning of each property is described on
#define DTV_ISDBT_LAYER_ENABLED 41
#define DTV_ISDBS_TS_ID 42
</programlisting>
</section>
<section id="fe_property_common">
<title>Parameters that are common to all Digital TV standards</title>
......
Documentation/DocBook/media-entities.tmpl
浏览文件 @ 8181d3ef
......@@ -293,6 +293,7 @@
<!ENTITY sub-yuyv SYSTEM "v4l/pixfmt-yuyv.xml">
<!ENTITY sub-yvyu SYSTEM "v4l/pixfmt-yvyu.xml">
<!ENTITY sub-srggb10 SYSTEM "v4l/pixfmt-srggb10.xml">
<!ENTITY sub-srggb12 SYSTEM "v4l/pixfmt-srggb12.xml">
<!ENTITY sub-srggb8 SYSTEM "v4l/pixfmt-srggb8.xml">
<!ENTITY sub-y10 SYSTEM "v4l/pixfmt-y10.xml">
<!ENTITY sub-y12 SYSTEM "v4l/pixfmt-y12.xml">
......@@ -373,9 +374,9 @@
<!ENTITY sub-media-indices SYSTEM "media-indices.tmpl">
<!ENTITY sub-media-controller SYSTEM "v4l/media-controller.xml">
<!ENTITY sub-media-open SYSTEM "v4l/media-func-open.xml">
<!ENTITY sub-media-close SYSTEM "v4l/media-func-close.xml">
<!ENTITY sub-media-ioctl SYSTEM "v4l/media-func-ioctl.xml">
<!ENTITY sub-media-func-open SYSTEM "v4l/media-func-open.xml">
<!ENTITY sub-media-func-close SYSTEM "v4l/media-func-close.xml">
<!ENTITY sub-media-func-ioctl SYSTEM "v4l/media-func-ioctl.xml">
<!ENTITY sub-media-ioc-device-info SYSTEM "v4l/media-ioc-device-info.xml">
<!ENTITY sub-media-ioc-enum-entities SYSTEM "v4l/media-ioc-enum-entities.xml">
<!ENTITY sub-media-ioc-enum-links SYSTEM "v4l/media-ioc-enum-links.xml">
......
Documentation/DocBook/mtdnand.tmpl
浏览文件 @ 8181d3ef
......@@ -189,8 +189,7 @@ static void __iomem *baseaddr;
<title>Partition defines</title>
<para>
If you want to divide your device into partitions, then
enable the configuration switch CONFIG_MTD_PARTITIONS and define
a partitioning scheme suitable to your board.
define a partitioning scheme suitable to your board.
</para>
<programlisting>
#define NUM_PARTITIONS 2
......
Documentation/DocBook/v4l/media-controller.xml
浏览文件 @ 8181d3ef
......@@ -78,9 +78,9 @@
<appendix id="media-user-func">
<title>Function Reference</title>
<!-- Keep this alphabetically sorted. -->
&sub-media-open;
&sub-media-close;
&sub-media-ioctl;
&sub-media-func-open;
&sub-media-func-close;
&sub-media-func-ioctl;
<!-- All ioctls go here. -->
&sub-media-ioc-device-info;
&sub-media-ioc-enum-entities;
......
Documentation/DocBook/v4l/pixfmt.xml
浏览文件 @ 8181d3ef
......@@ -673,6 +673,7 @@ access the palette, this must be done with ioctls of the Linux framebuffer API.<
&sub-srggb8;
&sub-sbggr16;
&sub-srggb10;
&sub-srggb12;
</section>
<section id="yuv-formats">
......
Documentation/DocBook/v4l/subdev-formats.xml
浏览文件 @ 8181d3ef
......@@ -2531,13 +2531,13 @@
<constant>_JPEG</constant> prefix the format code is made of
the following information.
<itemizedlist>
<listitem>The number of bus samples per entropy encoded byte.</listitem>
<listitem>The bus width.</listitem>
<listitem><para>The number of bus samples per entropy encoded byte.</para></listitem>
<listitem><para>The bus width.</para></listitem>
</itemizedlist>
</para>
<para>For instance, for a JPEG baseline process and an 8-bit bus width
the format will be named <constant>V4L2_MBUS_FMT_JPEG_1X8</constant>.
</para>
<para>For instance, for a JPEG baseline process and an 8-bit bus width
the format will be named <constant>V4L2_MBUS_FMT_JPEG_1X8</constant>.
</para>
<para>The following table lists existing JPEG compressed formats.</para>
......
Documentation/IRQ-affinity.txt
浏览文件 @ 8181d3ef
......@@ -4,10 +4,11 @@ ChangeLog:
SMP IRQ affinity
/proc/irq/IRQ#/smp_affinity specifies which target CPUs are permitted
for a given IRQ source. It's a bitmask of allowed CPUs. It's not allowed
to turn off all CPUs, and if an IRQ controller does not support IRQ
affinity then the value will not change from the default 0xffffffff.
/proc/irq/IRQ#/smp_affinity and /proc/irq/IRQ#/smp_affinity_list specify
which target CPUs are permitted for a given IRQ source. It's a bitmask
(smp_affinity) or cpu list (smp_affinity_list) of allowed CPUs. It's not
allowed to turn off all CPUs, and if an IRQ controller does not support
IRQ affinity then the value will not change from the default of all cpus.
/proc/irq/default_smp_affinity specifies default affinity mask that applies
to all non-active IRQs. Once IRQ is allocated/activated its affinity bitmask
......@@ -54,3 +55,11 @@ round-trip min/avg/max = 0.1/0.5/585.4 ms
This time around IRQ44 was delivered only to the last four processors.
i.e counters for the CPU0-3 did not change.
Here is an example of limiting that same irq (44) to cpus 1024 to 1031:
[root@moon 44]# echo 1024-1031 > smp_affinity
[root@moon 44]# cat smp_affinity
1024-1031
Note that to do this with a bitmask would require 32 bitmasks of zero
to follow the pertinent one.
Documentation/RCU/trace.txt
浏览文件 @ 8181d3ef
......@@ -99,18 +99,11 @@ o "qp" indicates that RCU still expects a quiescent state from
o "dt" is the current value of the dyntick counter that is incremented
when entering or leaving dynticks idle state, either by the
scheduler or by irq. The number after the "/" is the interrupt
nesting depth when in dyntick-idle state, or one greater than
the interrupt-nesting depth otherwise.
This field is displayed only for CONFIG_NO_HZ kernels.
o "dn" is the current value of the dyntick counter that is incremented
when entering or leaving dynticks idle state via NMI. If both
the "dt" and "dn" values are even, then this CPU is in dynticks
idle mode and may be ignored by RCU. If either of these two
counters is odd, then RCU must be alert to the possibility of
an RCU read-side critical section running on this CPU.
scheduler or by irq. This number is even if the CPU is in
dyntick idle mode and odd otherwise. The number after the first
"/" is the interrupt nesting depth when in dyntick-idle state,
or one greater than the interrupt-nesting depth otherwise.
The number after the second "/" is the NMI nesting depth.
This field is displayed only for CONFIG_NO_HZ kernels.
......
Documentation/accounting/getdelays.c
浏览文件 @ 8181d3ef
......@@ -177,6 +177,8 @@ static int get_family_id(int sd)
rc = send_cmd(sd, GENL_ID_CTRL, getpid(), CTRL_CMD_GETFAMILY,
CTRL_ATTR_FAMILY_NAME, (void *)name,
strlen(TASKSTATS_GENL_NAME)+1);
if (rc < 0)
return 0; /* sendto() failure? */
rep_len = recv(sd, &ans, sizeof(ans), 0);
if (ans.n.nlmsg_type == NLMSG_ERROR ||
......@@ -191,30 +193,37 @@ static int get_family_id(int sd)
return id;
}
#define average_ms(t, c) (t / 1000000ULL / (c ? c : 1))
static void print_delayacct(struct taskstats *t)
{
printf("\n\nCPU %15s%15s%15s%15s\n"
" %15llu%15llu%15llu%15llu\n"
"IO %15s%15s\n"
" %15llu%15llu\n"
"SWAP %15s%15s\n"
" %15llu%15llu\n"
"RECLAIM %12s%15s\n"
" %15llu%15llu\n",
"count", "real total", "virtual total", "delay total",
printf("\n\nCPU %15s%15s%15s%15s%15s\n"
" %15llu%15llu%15llu%15llu%15.3fms\n"
"IO %15s%15s%15s\n"
" %15llu%15llu%15llums\n"
"SWAP %15s%15s%15s\n"
" %15llu%15llu%15llums\n"
"RECLAIM %12s%15s%15s\n"
" %15llu%15llu%15llums\n",
"count", "real total", "virtual total",
"delay total", "delay average",
(unsigned long long)t->cpu_count,
(unsigned long long)t->cpu_run_real_total,
(unsigned long long)t->cpu_run_virtual_total,
(unsigned long long)t->cpu_delay_total,
"count", "delay total",
average_ms((double)t->cpu_delay_total, t->cpu_count),
"count", "delay total", "delay average",
(unsigned long long)t->blkio_count,
(unsigned long long)t->blkio_delay_total,
"count", "delay total",
average_ms(t->blkio_delay_total, t->blkio_count),
"count", "delay total", "delay average",
(unsigned long long)t->swapin_count,
(unsigned long long)t->swapin_delay_total,
"count", "delay total",
average_ms(t->swapin_delay_total, t->swapin_count),
"count", "delay total", "delay average",
(unsigned long long)t->freepages_count,
(unsigned long long)t->freepages_delay_total);
(unsigned long long)t->freepages_delay_total,
average_ms(t->freepages_delay_total, t->freepages_count));
}
static void task_context_switch_counts(struct taskstats *t)
......@@ -433,8 +442,6 @@ int main(int argc, char *argv[])
}
do {
int i;
rep_len = recv(nl_sd, &msg, sizeof(msg), 0);
PRINTF("received %d bytes\n", rep_len);
......@@ -459,7 +466,6 @@ int main(int argc, char *argv[])
na = (struct nlattr *) GENLMSG_DATA(&msg);
len = 0;
i = 0;
while (len < rep_len) {
len += NLA_ALIGN(na->nla_len);
switch (na->nla_type) {
......
Documentation/acpi/method-customizing.txt
浏览文件 @ 8181d3ef
......@@ -66,3 +66,8 @@ Note: We can use a kernel with multiple custom ACPI method running,
But each individual write to debugfs can implement a SINGLE
method override. i.e. if we want to insert/override multiple
ACPI methods, we need to redo step c) ~ g) for multiple times.
Note: Be aware that root can mis-use this driver to modify arbitrary
memory and gain additional rights, if root's privileges got
restricted (for example if root is not allowed to load additional
modules after boot).
Documentation/arm/Booting
浏览文件 @ 8181d3ef
......@@ -65,13 +65,19 @@ looks at the connected hardware is beyond the scope of this document.
The boot loader must ultimately be able to provide a MACH_TYPE_xxx
value to the kernel. (see linux/arch/arm/tools/mach-types).
4. Setup the kernel tagged list
-------------------------------
4. Setup boot data
------------------
Existing boot loaders: OPTIONAL, HIGHLY RECOMMENDED
New boot loaders: MANDATORY
The boot loader must provide either a tagged list or a dtb image for
passing configuration data to the kernel. The physical address of the
boot data is passed to the kernel in register r2.
4a. Setup the kernel tagged list
--------------------------------
The boot loader must create and initialise the kernel tagged list.
A valid tagged list starts with ATAG_CORE and ends with ATAG_NONE.
The ATAG_CORE tag may or may not be empty. An empty ATAG_CORE tag
......@@ -101,6 +107,24 @@ The tagged list must be placed in a region of memory where neither
the kernel decompressor nor initrd 'bootp' program will overwrite
it. The recommended placement is in the first 16KiB of RAM.
4b. Setup the device tree
-------------------------
The boot loader must load a device tree image (dtb) into system ram
at a 64bit aligned address and initialize it with the boot data. The
dtb format is documented in Documentation/devicetree/booting-without-of.txt.
The kernel will look for the dtb magic value of 0xd00dfeed at the dtb
physical address to determine if a dtb has been passed instead of a
tagged list.
The boot loader must pass at a minimum the size and location of the
system memory, and the root filesystem location. The dtb must be
placed in a region of memory where the kernel decompressor will not
overwrite it. The recommended placement is in the first 16KiB of RAM
with the caveat that it may not be located at physical address 0 since
the kernel interprets a value of 0 in r2 to mean neither a tagged list
nor a dtb were passed.
5. Calling the kernel image
---------------------------
......@@ -125,7 +149,8 @@ In either case, the following conditions must be met:
- CPU register settings
r0 = 0,
r1 = machine type number discovered in (3) above.
r2 = physical address of tagged list in system RAM.
r2 = physical address of tagged list in system RAM, or
physical address of device tree block (dtb) in system RAM
- CPU mode
All forms of interrupts must be disabled (IRQs and FIQs)
......
Documentation/arm/Samsung/Overview.txt
浏览文件 @ 8181d3ef
......@@ -14,7 +14,6 @@ Introduction
- S3C24XX: See Documentation/arm/Samsung-S3C24XX/Overview.txt for full list
- S3C64XX: S3C6400 and S3C6410
- S5P6440
- S5P6442
- S5PC100
- S5PC110 / S5PV210
......@@ -36,7 +35,6 @@ Configuration
unifying all the SoCs into one kernel.
s5p6440_defconfig - S5P6440 specific default configuration
s5p6442_defconfig - S5P6442 specific default configuration
s5pc100_defconfig - S5PC100 specific default configuration
s5pc110_defconfig - S5PC110 specific default configuration
s5pv210_defconfig - S5PV210 specific default configuration
......
Documentation/atomic_ops.txt
浏览文件 @ 8181d3ef
......@@ -12,7 +12,7 @@ Also, it should be made opaque such that any kind of cast to a normal
C integer type will fail. Something like the following should
suffice:
typedef struct { volatile int counter; } atomic_t;
typedef struct { int counter; } atomic_t;
Historically, counter has been declared volatile. This is now discouraged.
See Documentation/volatile-considered-harmful.txt for the complete rationale.
......
Documentation/blockdev/cciss.txt
浏览文件 @ 8181d3ef
......@@ -169,3 +169,18 @@ is issued which positions the tape to a known position. Typically you
must rewind the tape (by issuing "mt -f /dev/st0 rewind" for example)
before i/o can proceed again to a tape drive which was reset.
There is a cciss_tape_cmds module parameter which can be used to make cciss
allocate more commands for use by tape drives. Ordinarily only a few commands
(6) are allocated for tape drives because tape drives are slow and
infrequently used and the primary purpose of Smart Array controllers is to
act as a RAID controller for disk drives, so the vast majority of commands
are allocated for disk devices. However, if you have more than a few tape
drives attached to a smart array, the default number of commands may not be
enought (for example, if you have 8 tape drives, you could only rewind 6
at one time with the default number of commands.) The cciss_tape_cmds module
parameter allows more commands (up to 16 more) to be allocated for use by
tape drives. For example:
insmod cciss.ko cciss_tape_cmds=16
Or, as a kernel boot parameter passed in via grub: cciss.cciss_tape_cmds=8
Documentation/cachetlb.txt
浏览文件 @ 8181d3ef
......@@ -16,7 +16,7 @@ on all processors in the system. Don't let this scare you into
thinking SMP cache/tlb flushing must be so inefficient, this is in
fact an area where many optimizations are possible. For example,
if it can be proven that a user address space has never executed
on a cpu (see vma->cpu_vm_mask), one need not perform a flush
on a cpu (see mm_cpumask()), one need not perform a flush
for this address space on that cpu.
First, the TLB flushing interfaces, since they are the simplest. The
......
Documentation/cgroups/cgroups.txt
浏览文件 @ 8181d3ef
......@@ -236,7 +236,8 @@ containing the following files describing that cgroup:
- cgroup.procs: list of tgids in the cgroup. This list is not
guaranteed to be sorted or free of duplicate tgids, and userspace
should sort/uniquify the list if this property is required.
This is a read-only file, for now.
Writing a thread group id into this file moves all threads in that
group into this cgroup.
- notify_on_release flag: run the release agent on exit?
- release_agent: the path to use for release notifications (this file
exists in the top cgroup only)
......@@ -430,6 +431,12 @@ You can attach the current shell task by echoing 0:
# echo 0 > tasks
You can use the cgroup.procs file instead of the tasks file to move all
threads in a threadgroup at once. Echoing the pid of any task in a
threadgroup to cgroup.procs causes all tasks in that threadgroup to be
be attached to the cgroup. Writing 0 to cgroup.procs moves all tasks
in the writing task's threadgroup.
Note: Since every task is always a member of exactly one cgroup in each
mounted hierarchy, to remove a task from its current cgroup you must
move it into a new cgroup (possibly the root cgroup) by writing to the
......@@ -575,7 +582,7 @@ rmdir() will fail with it. From this behavior, pre_destroy() can be
called multiple times against a cgroup.
int can_attach(struct cgroup_subsys *ss, struct cgroup *cgrp,
struct task_struct *task, bool threadgroup)
struct task_struct *task)
(cgroup_mutex held by caller)
Called prior to moving a task into a cgroup; if the subsystem
......@@ -584,9 +591,14 @@ task is passed, then a successful result indicates that *any*
unspecified task can be moved into the cgroup. Note that this isn't
called on a fork. If this method returns 0 (success) then this should
remain valid while the caller holds cgroup_mutex and it is ensured that either
attach() or cancel_attach() will be called in future. If threadgroup is
true, then a successful result indicates that all threads in the given
thread's threadgroup can be moved together.
attach() or cancel_attach() will be called in future.
int can_attach_task(struct cgroup *cgrp, struct task_struct *tsk);
(cgroup_mutex held by caller)
As can_attach, but for operations that must be run once per task to be
attached (possibly many when using cgroup_attach_proc). Called after
can_attach.
void cancel_attach(struct cgroup_subsys *ss, struct cgroup *cgrp,
struct task_struct *task, bool threadgroup)
......@@ -598,15 +610,24 @@ function, so that the subsystem can implement a rollback. If not, not necessary.
This will be called only about subsystems whose can_attach() operation have
succeeded.
void pre_attach(struct cgroup *cgrp);
(cgroup_mutex held by caller)
For any non-per-thread attachment work that needs to happen before
attach_task. Needed by cpuset.
void attach(struct cgroup_subsys *ss, struct cgroup *cgrp,
struct cgroup *old_cgrp, struct task_struct *task,
bool threadgroup)
struct cgroup *old_cgrp, struct task_struct *task)
(cgroup_mutex held by caller)
Called after the task has been attached to the cgroup, to allow any
post-attachment activity that requires memory allocations or blocking.
If threadgroup is true, the subsystem should take care of all threads
in the specified thread's threadgroup. Currently does not support any
void attach_task(struct cgroup *cgrp, struct task_struct *tsk);
(cgroup_mutex held by caller)
As attach, but for operations that must be run once per task to be attached,
like can_attach_task. Called before attach. Currently does not support any
subsystem that might need the old_cgrp for every thread in the group.
void fork(struct cgroup_subsy *ss, struct task_struct *task)
......@@ -630,7 +651,7 @@ always handled well.
void post_clone(struct cgroup_subsys *ss, struct cgroup *cgrp)
(cgroup_mutex held by caller)
Called at the end of cgroup_clone() to do any parameter
Called during cgroup_create() to do any parameter
initialization which might be required before a task could attach. For
example in cpusets, no task may attach before 'cpus' and 'mems' are set
up.
......
Documentation/devicetree/bindings/net/fsl-tsec-phy.txt
浏览文件 @ 8181d3ef
......@@ -74,3 +74,57 @@ Example:
interrupt-parent = <&mpic>;
phy-handle = <&phy0>
};
* Gianfar PTP clock nodes
General Properties:
- compatible Should be "fsl,etsec-ptp"
- reg Offset and length of the register set for the device
- interrupts There should be at least two interrupts. Some devices
have as many as four PTP related interrupts.
Clock Properties:
- fsl,tclk-period Timer reference clock period in nanoseconds.
- fsl,tmr-prsc Prescaler, divides the output clock.
- fsl,tmr-add Frequency compensation value.
- fsl,tmr-fiper1 Fixed interval period pulse generator.
- fsl,tmr-fiper2 Fixed interval period pulse generator.
- fsl,max-adj Maximum frequency adjustment in parts per billion.
These properties set the operational parameters for the PTP
clock. You must choose these carefully for the clock to work right.
Here is how to figure good values:
TimerOsc = system clock MHz
tclk_period = desired clock period nanoseconds
NominalFreq = 1000 / tclk_period MHz
FreqDivRatio = TimerOsc / NominalFreq (must be greater that 1.0)
tmr_add = ceil(2^32 / FreqDivRatio)
OutputClock = NominalFreq / tmr_prsc MHz
PulseWidth = 1 / OutputClock microseconds
FiperFreq1 = desired frequency in Hz
FiperDiv1 = 1000000 * OutputClock / FiperFreq1
tmr_fiper1 = tmr_prsc * tclk_period * FiperDiv1 - tclk_period
max_adj = 1000000000 * (FreqDivRatio - 1.0) - 1
The calculation for tmr_fiper2 is the same as for tmr_fiper1. The
driver expects that tmr_fiper1 will be correctly set to produce a 1
Pulse Per Second (PPS) signal, since this will be offered to the PPS
subsystem to synchronize the Linux clock.
Example:
ptp_clock@24E00 {
compatible = "fsl,etsec-ptp";
reg = <0x24E00 0xB0>;
interrupts = <12 0x8 13 0x8>;
interrupt-parent = < &ipic >;
fsl,tclk-period = <10>;
fsl,tmr-prsc = <100>;
fsl,tmr-add = <0x999999A4>;
fsl,tmr-fiper1 = <0x3B9AC9F6>;
fsl,tmr-fiper2 = <0x00018696>;
fsl,max-adj = <659999998>;
};
Documentation/devicetree/booting-without-of.txt
浏览文件 @ 8181d3ef
......@@ -12,8 +12,9 @@ Table of Contents
=================
I - Introduction
1) Entry point for arch/powerpc
2) Entry point for arch/x86
1) Entry point for arch/arm
2) Entry point for arch/powerpc
3) Entry point for arch/x86
II - The DT block format
1) Header
......@@ -148,7 +149,46 @@ upgrades without significantly impacting the kernel code or cluttering
it with special cases.
1) Entry point for arch/powerpc
1) Entry point for arch/arm
---------------------------
There is one single entry point to the kernel, at the start
of the kernel image. That entry point supports two calling
conventions. A summary of the interface is described here. A full
description of the boot requirements is documented in
Documentation/arm/Booting
a) ATAGS interface. Minimal information is passed from firmware
to the kernel with a tagged list of predefined parameters.
r0 : 0
r1 : Machine type number
r2 : Physical address of tagged list in system RAM
b) Entry with a flattened device-tree block. Firmware loads the
physical address of the flattened device tree block (dtb) into r2,
r1 is not used, but it is considered good practise to use a valid
machine number as described in Documentation/arm/Booting.
r0 : 0
r1 : Valid machine type number. When using a device tree,
a single machine type number will often be assigned to
represent a class or family of SoCs.
r2 : physical pointer to the device-tree block
(defined in chapter II) in RAM. Device tree can be located
anywhere in system RAM, but it should be aligned on a 64 bit
boundary.
The kernel will differentiate between ATAGS and device tree booting by
reading the memory pointed to by r2 and looking for either the flattened
device tree block magic value (0xd00dfeed) or the ATAG_CORE value at
offset 0x4 from r2 (0x54410001).
2) Entry point for arch/powerpc
-------------------------------
There is one single entry point to the kernel, at the start
......@@ -226,7 +266,7 @@ it with special cases.
cannot support both configurations with Book E and configurations
with classic Powerpc architectures.
2) Entry point for arch/x86
3) Entry point for arch/x86
-------------------------------
There is one single 32bit entry point to the kernel at code32_start,
......
Documentation/dmaengine.txt
浏览文件 @ 8181d3ef
See Documentation/crypto/async-tx-api.txt
DMA Engine API Guide
====================
Vinod Koul <vinod dot koul at intel.com>
NOTE: For DMA Engine usage in async_tx please see:
Documentation/crypto/async-tx-api.txt
Below is a guide to device driver writers on how to use the Slave-DMA API of the
DMA Engine. This is applicable only for slave DMA usage only.
The slave DMA usage consists of following steps
1. Allocate a DMA slave channel
2. Set slave and controller specific parameters
3. Get a descriptor for transaction
4. Submit the transaction and wait for callback notification
1. Allocate a DMA slave channel
Channel allocation is slightly different in the slave DMA context, client
drivers typically need a channel from a particular DMA controller only and even
in some cases a specific channel is desired. To request a channel
dma_request_channel() API is used.
Interface:
struct dma_chan *dma_request_channel(dma_cap_mask_t mask,
dma_filter_fn filter_fn,
void *filter_param);
where dma_filter_fn is defined as:
typedef bool (*dma_filter_fn)(struct dma_chan *chan, void *filter_param);
When the optional 'filter_fn' parameter is set to NULL dma_request_channel
simply returns the first channel that satisfies the capability mask. Otherwise,
when the mask parameter is insufficient for specifying the necessary channel,
the filter_fn routine can be used to disposition the available channels in the
system. The filter_fn routine is called once for each free channel in the
system. Upon seeing a suitable channel filter_fn returns DMA_ACK which flags
that channel to be the return value from dma_request_channel. A channel
allocated via this interface is exclusive to the caller, until
dma_release_channel() is called.
2. Set slave and controller specific parameters
Next step is always to pass some specific information to the DMA driver. Most of
the generic information which a slave DMA can use is in struct dma_slave_config.
It allows the clients to specify DMA direction, DMA addresses, bus widths, DMA
burst lengths etc. If some DMA controllers have more parameters to be sent then
they should try to embed struct dma_slave_config in their controller specific
structure. That gives flexibility to client to pass more parameters, if
required.
Interface:
int dmaengine_slave_config(struct dma_chan *chan,
struct dma_slave_config *config)
3. Get a descriptor for transaction
For slave usage the various modes of slave transfers supported by the
DMA-engine are:
slave_sg - DMA a list of scatter gather buffers from/to a peripheral
dma_cyclic - Perform a cyclic DMA operation from/to a peripheral till the
operation is explicitly stopped.
The non NULL return of this transfer API represents a "descriptor" for the given
transaction.
Interface:
struct dma_async_tx_descriptor *(*chan->device->device_prep_dma_sg)(
struct dma_chan *chan,
struct scatterlist *dst_sg, unsigned int dst_nents,
struct scatterlist *src_sg, unsigned int src_nents,
unsigned long flags);
struct dma_async_tx_descriptor *(*chan->device->device_prep_dma_cyclic)(
struct dma_chan *chan, dma_addr_t buf_addr, size_t buf_len,
size_t period_len, enum dma_data_direction direction);
4. Submit the transaction and wait for callback notification
To schedule the transaction to be scheduled by dma device, the "descriptor"
returned in above (3) needs to be submitted.
To tell the dma driver that a transaction is ready to be serviced, the
descriptor->submit() callback needs to be invoked. This chains the descriptor to
the pending queue.
The transactions in the pending queue can be activated by calling the
issue_pending API. If channel is idle then the first transaction in queue is
started and subsequent ones queued up.
On completion of the DMA operation the next in queue is submitted and a tasklet
triggered. The tasklet would then call the client driver completion callback
routine for notification, if set.
Interface:
void dma_async_issue_pending(struct dma_chan *chan);
==============================================================================
Additional usage notes for dma driver writers
1/ Although DMA engine specifies that completion callback routines cannot submit
any new operations, but typically for slave DMA subsequent transaction may not
be available for submit prior to callback routine being called. This requirement
is not a requirement for DMA-slave devices. But they should take care to drop
the spin-lock they might be holding before calling the callback routine
Documentation/feature-removal-schedule.txt
浏览文件 @ 8181d3ef
......@@ -6,6 +6,42 @@ be removed from this file.
---------------------------
What: x86 floppy disable_hlt
When: 2012
Why: ancient workaround of dubious utility clutters the
code used by everybody else.
Who: Len Brown <len.brown@intel.com>
---------------------------
What: CONFIG_APM_CPU_IDLE, and its ability to call APM BIOS in idle
When: 2012
Why: This optional sub-feature of APM is of dubious reliability,
and ancient APM laptops are likely better served by calling HLT.
Deleting CONFIG_APM_CPU_IDLE allows x86 to stop exporting
the pm_idle function pointer to modules.
Who: Len Brown <len.brown@intel.com>
----------------------------
What: x86_32 "no-hlt" cmdline param
When: 2012
Why: remove a branch from idle path, simplify code used by everybody.
This option disabled the use of HLT in idle and machine_halt()
for hardware that was flakey 15-years ago. Today we have
"idle=poll" that removed HLT from idle, and so if such a machine
is still running the upstream kernel, "idle=poll" is likely sufficient.
Who: Len Brown <len.brown@intel.com>
----------------------------
What: x86 "idle=mwait" cmdline param
When: 2012
Why: simplify x86 idle code
Who: Len Brown <len.brown@intel.com>
----------------------------
What: PRISM54
When: 2.6.34
......@@ -262,16 +298,6 @@ Who: Michael Buesch <mb@bu3sch.de>
---------------------------
What: /sys/o2cb symlink
When: January 2010
Why: /sys/fs/o2cb is the proper location for this information - /sys/o2cb
exists as a symlink for backwards compatibility for old versions of
ocfs2-tools. 2 years should be sufficient time to phase in new versions
which know to look in /sys/fs/o2cb.
Who: ocfs2-devel@oss.oracle.com
---------------------------
What: Ability for non root users to shm_get hugetlb pages based on mlock
resource limits
When: 2.6.31
......
Documentation/filesystems/9p.txt
浏览文件 @ 8181d3ef
......@@ -25,6 +25,8 @@ Other applications are described in the following papers:
http://xcpu.org/papers/cellfs-talk.pdf
* PROSE I/O: Using 9p to enable Application Partitions
http://plan9.escet.urjc.es/iwp9/cready/PROSE_iwp9_2006.pdf
* VirtFS: A Virtualization Aware File System pass-through
http://goo.gl/3WPDg
USAGE
=====
......@@ -130,31 +132,20 @@ OPTIONS
RESOURCES
=========
Our current recommendation is to use Inferno (http://www.vitanuova.com/nferno/index.html)
as the 9p server. You can start a 9p server under Inferno by issuing the
following command:
; styxlisten -A tcp!*!564 export '#U*'
Protocol specifications are maintained on github:
http://ericvh.github.com/9p-rfc/
The -A specifies an unauthenticated export. The 564 is the port # (you may
have to choose a higher port number if running as a normal user). The '#U*'
specifies exporting the root of the Linux name space. You may specify a
subset of the namespace by extending the path: '#U*'/tmp would just export
/tmp. For more information, see the Inferno manual pages covering styxlisten
and export.
9p client and server implementations are listed on
http://9p.cat-v.org/implementations
A Linux version of the 9p server is now maintained under the npfs project
on sourceforge (http://sourceforge.net/projects/npfs). The currently
maintained version is the single-threaded version of the server (named spfs)
available from the same SVN repository.
A 9p2000.L server is being developed by LLNL and can be found
at http://code.google.com/p/diod/
There are user and developer mailing lists available through the v9fs project
on sourceforge (http://sourceforge.net/projects/v9fs).
A stand-alone version of the module (which should build for any 2.6 kernel)
is available via (http://github.com/ericvh/9p-sac/tree/master)
News and other information is maintained on SWiK (http://swik.net/v9fs)
and the Wiki (http://sf.net/apps/mediawiki/v9fs/index.php).
News and other information is maintained on a Wiki.
(http://sf.net/apps/mediawiki/v9fs/index.php).
Bug reports may be issued through the kernel.org bugzilla
(http://bugzilla.kernel.org)
......
Documentation/filesystems/Locking
浏览文件 @ 8181d3ef
......@@ -104,7 +104,7 @@ of the locking scheme for directory operations.
prototypes:
struct inode *(*alloc_inode)(struct super_block *sb);
void (*destroy_inode)(struct inode *);
void (*dirty_inode) (struct inode *);
void (*dirty_inode) (struct inode *, int flags);
int (*write_inode) (struct inode *, struct writeback_control *wbc);
int (*drop_inode) (struct inode *);
void (*evict_inode) (struct inode *);
......@@ -126,7 +126,7 @@ locking rules:
s_umount
alloc_inode:
destroy_inode:
dirty_inode: (must not sleep)
dirty_inode:
write_inode:
drop_inode: !!!inode->i_lock!!!
evict_inode:
......
Documentation/filesystems/configfs/configfs_example_explicit.c
浏览文件 @ 8181d3ef
......@@ -464,9 +464,8 @@ static int __init configfs_example_init(void)
return 0;
out_unregister:
for (; i >= 0; i--) {
for (i--; i >= 0; i--)
configfs_unregister_subsystem(example_subsys[i]);
}
return ret;
}
......@@ -475,9 +474,8 @@ static void __exit configfs_example_exit(void)
{
int i;
for (i = 0; example_subsys[i]; i++) {
for (i = 0; example_subsys[i]; i++)
configfs_unregister_subsystem(example_subsys[i]);
}
}
module_init(configfs_example_init);
......
Documentation/filesystems/configfs/configfs_example_macros.c
浏览文件 @ 8181d3ef
......@@ -427,9 +427,8 @@ static int __init configfs_example_init(void)
return 0;
out_unregister:
for (; i >= 0; i--) {
for (i--; i >= 0; i--)
configfs_unregister_subsystem(example_subsys[i]);
}
return ret;
}
......@@ -438,9 +437,8 @@ static void __exit configfs_example_exit(void)
{
int i;
for (i = 0; example_subsys[i]; i++) {
for (i = 0; example_subsys[i]; i++)
configfs_unregister_subsystem(example_subsys[i]);
}
}
module_init(configfs_example_init);
......
Documentation/filesystems/ext4.txt
浏览文件 @ 8181d3ef
......@@ -226,10 +226,6 @@ acl Enables POSIX Access Control Lists support.
noacl This option disables POSIX Access Control List
support.
reservation
noreservation
bsddf (*) Make 'df' act like BSD.
minixdf Make 'df' act like Minix.
......
Documentation/filesystems/nfs/idmapper.txt
浏览文件 @ 8181d3ef
......@@ -47,8 +47,8 @@ request-key will find the first matching line and corresponding program. In
this case, /some/other/program will handle all uid lookups and
/usr/sbin/nfs.idmap will handle gid, user, and group lookups.
See <file:Documentation/keys-request-keys.txt> for more information about the
request-key function.
See <file:Documentation/security/keys-request-keys.txt> for more information
about the request-key function.
=========
......
Documentation/filesystems/ocfs2.txt
浏览文件 @ 8181d3ef
......@@ -46,9 +46,15 @@ errors=panic Panic and halt the machine if an error occurs.
intr (*) Allow signals to interrupt cluster operations.
nointr Do not allow signals to interrupt cluster
operations.
noatime Do not update access time.
relatime(*) Update atime if the previous atime is older than
mtime or ctime
strictatime Always update atime, but the minimum update interval
is specified by atime_quantum.
atime_quantum=60(*) OCFS2 will not update atime unless this number
of seconds has passed since the last update.
Set to zero to always update atime.
Set to zero to always update atime. This option need
work with strictatime.
data=ordered (*) All data are forced directly out to the main file
system prior to its metadata being committed to the
journal.
......
Documentation/filesystems/proc.txt
浏览文件 @ 8181d3ef
......@@ -574,6 +574,12 @@ The contents of each smp_affinity file is the same by default:
> cat /proc/irq/0/smp_affinity
ffffffff
There is an alternate interface, smp_affinity_list which allows specifying
a cpu range instead of a bitmask:
> cat /proc/irq/0/smp_affinity_list
1024-1031
The default_smp_affinity mask applies to all non-active IRQs, which are the
IRQs which have not yet been allocated/activated, and hence which lack a
/proc/irq/[0-9]* directory.
......@@ -583,12 +589,13 @@ reports itself as being attached. This hardware locality information does not
include information about any possible driver locality preference.
prof_cpu_mask specifies which CPUs are to be profiled by the system wide
profiler. Default value is ffffffff (all cpus).
profiler. Default value is ffffffff (all cpus if there are only 32 of them).
The way IRQs are routed is handled by the IO-APIC, and it's Round Robin
between all the CPUs which are allowed to handle it. As usual the kernel has
more info than you and does a better job than you, so the defaults are the
best choice for almost everyone.
best choice for almost everyone. [Note this applies only to those IO-APIC's
that support "Round Robin" interrupt distribution.]
There are three more important subdirectories in /proc: net, scsi, and sys.
The general rule is that the contents, or even the existence of these
......
Documentation/filesystems/ubifs.txt
浏览文件 @ 8181d3ef
......@@ -115,28 +115,8 @@ ubi.mtd=0 root=ubi0:rootfs rootfstype=ubifs
Module Parameters for Debugging
===============================
When UBIFS has been compiled with debugging enabled, there are 3 module
When UBIFS has been compiled with debugging enabled, there are 2 module
parameters that are available to control aspects of testing and debugging.
The parameters are unsigned integers where each bit controls an option.
The parameters are:
debug_msgs Selects which debug messages to display, as follows:
Message Type Flag value
General messages 1
Journal messages 2
Mount messages 4
Commit messages 8
LEB search messages 16
Budgeting messages 32
Garbage collection messages 64
Tree Node Cache (TNC) messages 128
LEB properties (lprops) messages 256
Input/output messages 512
Log messages 1024
Scan messages 2048
Recovery messages 4096
debug_chks Selects extra checks that UBIFS can do while running:
......@@ -154,11 +134,9 @@ debug_tsts Selects a mode of testing, as follows:
Test mode Flag value
Force in-the-gaps method 2
Failure mode for recovery testing 4
For example, set debug_msgs to 5 to display General messages and Mount
messages.
For example, set debug_chks to 3 to enable general and TNC checks.
References
......
Documentation/filesystems/vfs.txt
浏览文件 @ 8181d3ef
......@@ -211,7 +211,7 @@ struct super_operations {
struct inode *(*alloc_inode)(struct super_block *sb);
void (*destroy_inode)(struct inode *);
void (*dirty_inode) (struct inode *);
void (*dirty_inode) (struct inode *, int flags);
int (*write_inode) (struct inode *, int);
void (*drop_inode) (struct inode *);
void (*delete_inode) (struct inode *);
......
Documentation/filesystems/xfs.txt
浏览文件 @ 8181d3ef
......@@ -39,6 +39,12 @@ When mounting an XFS filesystem, the following options are accepted.
drive level write caching to be enabled, for devices that
support write barriers.
discard
Issue command to let the block device reclaim space freed by the
filesystem. This is useful for SSD devices, thinly provisioned
LUNs and virtual machine images, but may have a performance
impact. This option is incompatible with the nodelaylog option.
dmapi
Enable the DMAPI (Data Management API) event callouts.
Use with the "mtpt" option.
......
Documentation/hwmon/emc6w201 0 → 100644
浏览文件 @ 8181d3ef
Kernel driver emc6w201
======================
Supported chips:
* SMSC EMC6W201
Prefix: 'emc6w201'
Addresses scanned: I2C 0x2c, 0x2d, 0x2e
Datasheet: Not public
Author: Jean Delvare <khali@linux-fr.org>
Description
-----------
From the datasheet:
"The EMC6W201 is an environmental monitoring device with automatic fan
control capability and enhanced system acoustics for noise suppression.
This ACPI compliant device provides hardware monitoring for up to six
voltages (including its own VCC) and five external thermal sensors,
measures the speed of up to five fans, and controls the speed of
multiple DC fans using three Pulse Width Modulator (PWM) outputs. Note
that it is possible to control more than three fans by connecting two
fans to one PWM output. The EMC6W201 will be available in a 36-pin
QFN package."
The device is functionally close to the EMC6D100 series, but is
register-incompatible.
The driver currently only supports the monitoring of the voltages,
temperatures and fan speeds. Limits can be changed. Alarms are not
supported, and neither is fan speed control.
Known Systems With EMC6W201
---------------------------
The EMC6W201 is a rare device, only found on a few systems, made in
2005 and 2006. Known systems with this device:
* Dell Precision 670 workstation
* Gigabyte 2CEWH mainboard
Documentation/hwmon/f71882fg
浏览文件 @ 8181d3ef
......@@ -6,6 +6,10 @@ Supported chips:
Prefix: 'f71808e'
Addresses scanned: none, address read from Super I/O config space
Datasheet: Not public
* Fintek F71808A
Prefix: 'f71808a'
Addresses scanned: none, address read from Super I/O config space
Datasheet: Not public
* Fintek F71858FG
Prefix: 'f71858fg'
Addresses scanned: none, address read from Super I/O config space
......
Documentation/hwmon/fam15h_power 0 → 100644
浏览文件 @ 8181d3ef
Kernel driver fam15h_power
==========================
Supported chips:
* AMD Family 15h Processors
Prefix: 'fam15h_power'
Addresses scanned: PCI space
Datasheets:
BIOS and Kernel Developer's Guide (BKDG) For AMD Family 15h Processors
(not yet published)
Author: Andreas Herrmann <andreas.herrmann3@amd.com>
Description
-----------
This driver permits reading of registers providing power information
of AMD Family 15h processors.
For AMD Family 15h processors the following power values can be
calculated using different processor northbridge function registers:
* BasePwrWatts: Specifies in watts the maximum amount of power
consumed by the processor for NB and logic external to the core.
* ProcessorPwrWatts: Specifies in watts the maximum amount of power
the processor can support.
* CurrPwrWatts: Specifies in watts the current amount of power being
consumed by the processor.
This driver provides ProcessorPwrWatts and CurrPwrWatts:
* power1_crit (ProcessorPwrWatts)
* power1_input (CurrPwrWatts)
On multi-node processors the calculated value is for the entire
package and not for a single node. Thus the driver creates sysfs
attributes only for internal node0 of a multi-node processor.
Documentation/hwmon/k10temp
浏览文件 @ 8181d3ef
......@@ -11,6 +11,7 @@ Supported chips:
Socket S1G2: Athlon (X2), Sempron (X2), Turion X2 (Ultra)
* AMD Family 12h processors: "Llano"
* AMD Family 14h processors: "Brazos" (C/E/G-Series)
* AMD Family 15h processors: "Bulldozer"
Prefix: 'k10temp'
Addresses scanned: PCI space
......@@ -40,7 +41,7 @@ Description
-----------
This driver permits reading of the internal temperature sensor of AMD
Family 10h/11h/12h/14h processors.
Family 10h/11h/12h/14h/15h processors.
All these processors have a sensor, but on those for Socket F or AM2+,
the sensor may return inconsistent values (erratum 319). The driver
......
Documentation/hwmon/max6650
浏览文件 @ 8181d3ef
......@@ -2,9 +2,13 @@ Kernel driver max6650
=====================
Supported chips:
* Maxim 6650 / 6651
* Maxim MAX6650
Prefix: 'max6650'
Addresses scanned: I2C 0x1b, 0x1f, 0x48, 0x4b
Addresses scanned: none
Datasheet: http://pdfserv.maxim-ic.com/en/ds/MAX6650-MAX6651.pdf
* Maxim MAX6651
Prefix: 'max6651'
Addresses scanned: none
Datasheet: http://pdfserv.maxim-ic.com/en/ds/MAX6650-MAX6651.pdf
Authors:
......@@ -15,10 +19,10 @@ Authors:
Description
-----------
This driver implements support for the Maxim 6650/6651
This driver implements support for the Maxim MAX6650 and MAX6651.
The 2 devices are very similar, but the Maxim 6550 has a reduced feature
set, e.g. only one fan-input, instead of 4 for the 6651.
The 2 devices are very similar, but the MAX6550 has a reduced feature
set, e.g. only one fan-input, instead of 4 for the MAX6651.
The driver is not able to distinguish between the 2 devices.
......@@ -36,6 +40,13 @@ fan1_div rw sets the speed range the inputs can handle. Legal
values are 1, 2, 4, and 8. Use lower values for
faster fans.
Usage notes
-----------
This driver does not auto-detect devices. You will have to instantiate the
devices explicitly. Please see Documentation/i2c/instantiating-devices for
details.
Module parameters
-----------------
......
Documentation/i2c/busses/i2c-i801
浏览文件 @ 8181d3ef
......@@ -19,6 +19,7 @@ Supported adapters:
* Intel 6 Series (PCH)
* Intel Patsburg (PCH)
* Intel DH89xxCC (PCH)
* Intel Panther Point (PCH)
Datasheets: Publicly available at the Intel website
On Intel Patsburg and later chipsets, both the normal host SMBus controller
......
Documentation/i2c/writing-clients
浏览文件 @ 8181d3ef
......@@ -38,7 +38,7 @@ static struct i2c_driver foo_driver = {
.name = "foo",
},
.id_table = foo_ids,
.id_table = foo_idtable,
.probe = foo_probe,
.remove = foo_remove,
/* if device autodetection is needed: */
......
Documentation/input/elantech.txt
浏览文件 @ 8181d3ef
......@@ -34,7 +34,8 @@ Contents
Currently the Linux Elantech touchpad driver is aware of two different
hardware versions unimaginatively called version 1 and version 2. Version 1
is found in "older" laptops and uses 4 bytes per packet. Version 2 seems to
be introduced with the EeePC and uses 6 bytes per packet.
be introduced with the EeePC and uses 6 bytes per packet, and provides
additional features such as position of two fingers, and width of the touch.
The driver tries to support both hardware versions and should be compatible
with the Xorg Synaptics touchpad driver and its graphical configuration
......@@ -94,18 +95,44 @@ Currently the Linux Elantech touchpad driver provides two extra knobs under
can check these bits and reject any packet that appears corrupted. Using
this knob you can bypass that check.
It is not known yet whether hardware version 2 provides the same parity
bits. Hence checking is disabled by default. Currently even turning it on
will do nothing.
Hardware version 2 does not provide the same parity bits. Only some basic
data consistency checking can be done. For now checking is disabled by
default. Currently even turning it on will do nothing.
/////////////////////////////////////////////////////////////////////////////
3. Differentiating hardware versions
=================================
To detect the hardware version, read the version number as param[0].param[1].param[2]
4 bytes version: (after the arrow is the name given in the Dell-provided driver)
02.00.22 => EF013
02.06.00 => EF019
In the wild, there appear to be more versions, such as 00.01.64, 01.00.21,
02.00.00, 02.00.04, 02.00.06.
6 bytes:
02.00.30 => EF113
02.08.00 => EF023
02.08.XX => EF123
02.0B.00 => EF215
04.01.XX => Scroll_EF051
04.02.XX => EF051
In the wild, there appear to be more versions, such as 04.03.01, 04.04.11. There
appears to be almost no difference, except for EF113, which does not report
pressure/width and has different data consistency checks.
Probably all the versions with param[0] <= 01 can be considered as
4 bytes/firmware 1. The versions < 02.08.00, with the exception of 02.00.30, as
4 bytes/firmware 2. Everything >= 02.08.00 can be considered as 6 bytes.
/////////////////////////////////////////////////////////////////////////////
3. Hardware version 1
4. Hardware version 1
==================
3.1 Registers
4.1 Registers
~~~~~~~~~
By echoing a hexadecimal value to a register it contents can be altered.
......@@ -168,7 +195,7 @@ For example:
smart edge activation area width?
3.2 Native relative mode 4 byte packet format
4.2 Native relative mode 4 byte packet format
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
byte 0:
......@@ -226,9 +253,13 @@ byte 3:
positive = down
3.3 Native absolute mode 4 byte packet format
4.3 Native absolute mode 4 byte packet format
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
EF013 and EF019 have a special behaviour (due to a bug in the firmware?), and
when 1 finger is touching, the first 2 position reports must be discarded.
This counting is reset whenever a different number of fingers is reported.
byte 0:
firmware version 1.x:
......@@ -279,11 +310,11 @@ byte 3:
/////////////////////////////////////////////////////////////////////////////
4. Hardware version 2
5. Hardware version 2
==================
4.1 Registers
5.1 Registers
~~~~~~~~~
By echoing a hexadecimal value to a register it contents can be altered.
......@@ -316,16 +347,41 @@ For example:
0x7f = never i.e. tap again to release)
4.2 Native absolute mode 6 byte packet format
5.2 Native absolute mode 6 byte packet format
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
4.2.1 One finger touch
5.2.1 Parity checking and packet re-synchronization
There is no parity checking, however some consistency checks can be performed.
For instance for EF113:
SA1= packet[0];
A1 = packet[1];
B1 = packet[2];
SB1= packet[3];
C1 = packet[4];
D1 = packet[5];
if( (((SA1 & 0x3C) != 0x3C) && ((SA1 & 0xC0) != 0x80)) || // check Byte 1
(((SA1 & 0x0C) != 0x0C) && ((SA1 & 0xC0) == 0x80)) || // check Byte 1 (one finger pressed)
(((SA1 & 0xC0) != 0x80) && (( A1 & 0xF0) != 0x00)) || // check Byte 2
(((SB1 & 0x3E) != 0x38) && ((SA1 & 0xC0) != 0x80)) || // check Byte 4
(((SB1 & 0x0E) != 0x08) && ((SA1 & 0xC0) == 0x80)) || // check Byte 4 (one finger pressed)
(((SA1 & 0xC0) != 0x80) && (( C1 & 0xF0) != 0x00)) ) // check Byte 5
// error detected
For all the other ones, there are just a few constant bits:
if( ((packet[0] & 0x0C) != 0x04) ||
((packet[3] & 0x0f) != 0x02) )
// error detected
In case an error is detected, all the packets are shifted by one (and packet[0] is discarded).
5.2.1 One/Three finger touch
~~~~~~~~~~~~~~~~
byte 0:
bit 7 6 5 4 3 2 1 0
n1 n0 . . . . R L
n1 n0 w3 w2 . . R L
L, R = 1 when Left, Right mouse button pressed
n1..n0 = numbers of fingers on touchpad
......@@ -333,24 +389,40 @@ byte 0:
byte 1:
bit 7 6 5 4 3 2 1 0
. . . . . x10 x9 x8
p7 p6 p5 p4 . x10 x9 x8
byte 2:
bit 7 6 5 4 3 2 1 0
x7 x6 x5 x4 x4 x2 x1 x0
x7 x6 x5 x4 x3 x2 x1 x0
x10..x0 = absolute x value (horizontal)
byte 3:
bit 7 6 5 4 3 2 1 0
. . . . . . . .
n4 vf w1 w0 . . . b2
n4 = set if more than 3 fingers (only in 3 fingers mode)
vf = a kind of flag ? (only on EF123, 0 when finger is over one
of the buttons, 1 otherwise)
w3..w0 = width of the finger touch (not EF113)
b2 (on EF113 only, 0 otherwise), b2.R.L indicates one button pressed:
0 = none
1 = Left
2 = Right
3 = Middle (Left and Right)
4 = Forward
5 = Back
6 = Another one
7 = Another one
byte 4:
bit 7 6 5 4 3 2 1 0
. . . . . . y9 y8
p3 p1 p2 p0 . . y9 y8
p7..p0 = pressure (not EF113)
byte 5:
......@@ -363,6 +435,11 @@ byte 5:
4.2.2 Two finger touch
~~~~~~~~~~~~~~~~
Note that the two pairs of coordinates are not exactly the coordinates of the
two fingers, but only the pair of the lower-left and upper-right coordinates.
So the actual fingers might be situated on the other diagonal of the square
defined by these two points.
byte 0:
bit 7 6 5 4 3 2 1 0
......@@ -376,14 +453,14 @@ byte 1:
bit 7 6 5 4 3 2 1 0
ax7 ax6 ax5 ax4 ax3 ax2 ax1 ax0
ax8..ax0 = first finger absolute x value
ax8..ax0 = lower-left finger absolute x value
byte 2:
bit 7 6 5 4 3 2 1 0
ay7 ay6 ay5 ay4 ay3 ay2 ay1 ay0
ay8..ay0 = first finger absolute y value
ay8..ay0 = lower-left finger absolute y value
byte 3:
......@@ -395,11 +472,11 @@ byte 4:
bit 7 6 5 4 3 2 1 0
bx7 bx6 bx5 bx4 bx3 bx2 bx1 bx0
bx8..bx0 = second finger absolute x value
bx8..bx0 = upper-right finger absolute x value
byte 5:
bit 7 6 5 4 3 2 1 0
by7 by8 by5 by4 by3 by2 by1 by0
by8..by0 = second finger absolute y value
by8..by0 = upper-right finger absolute y value
Documentation/input/rotary-encoder.txt
浏览文件 @ 8181d3ef
......@@ -9,6 +9,9 @@ peripherals with two wires. The outputs are phase-shifted by 90 degrees
and by triggering on falling and rising edges, the turn direction can
be determined.
Some encoders have both outputs low in stable states, whereas others also have
a stable state with both outputs high (half-period mode).
The phase diagram of these two outputs look like this:
_____ _____ _____
......@@ -26,6 +29,8 @@ The phase diagram of these two outputs look like this:
|<-------->|
one step
|<-->|
one step (half-period mode)
For more information, please see
http://en.wikipedia.org/wiki/Rotary_encoder
......@@ -34,6 +39,13 @@ For more information, please see
1. Events / state machine
-------------------------
In half-period mode, state a) and c) above are used to determine the
rotational direction based on the last stable state. Events are reported in
states b) and d) given that the new stable state is different from the last
(i.e. the rotation was not reversed half-way).
Otherwise, the following apply:
a) Rising edge on channel A, channel B in low state
This state is used to recognize a clockwise turn
......@@ -96,6 +108,7 @@ static struct rotary_encoder_platform_data my_rotary_encoder_info = {
.gpio_b = GPIO_ROTARY_B,
.inverted_a = 0,
.inverted_b = 0,
.half_period = false,
};
static struct platform_device rotary_encoder_device = {
......
Documentation/ioctl/ioctl-number.txt
浏览文件 @ 8181d3ef
......@@ -304,6 +304,7 @@ Code Seq#(hex) Include File Comments
0xB0 all RATIO devices in development:
<mailto:vgo@ratio.de>
0xB1 00-1F PPPoX <mailto:mostrows@styx.uwaterloo.ca>
0xB3 00 linux/mmc/ioctl.h
0xC0 00-0F linux/usb/iowarrior.h
0xCB 00-1F CBM serial IEC bus in development:
<mailto:michael.klein@puffin.lb.shuttle.de>
......
Documentation/kbuild/kbuild.txt
浏览文件 @ 8181d3ef
......@@ -201,3 +201,16 @@ KBUILD_ENABLE_EXTRA_GCC_CHECKS
--------------------------------------------------
If enabled over the make command line with "W=1", it turns on additional
gcc -W... options for more extensive build-time checking.
KBUILD_BUILD_TIMESTAMP
--------------------------------------------------
Setting this to a date string overrides the timestamp used in the
UTS_VERSION definition (uname -v in the running kernel). The value has to
be a string that can be passed to date -d. The default value
is the output of the date command at one point during build.
KBUILD_BUILD_USER, KBUILD_BUILD_HOST
--------------------------------------------------
These two variables allow to override the user@host string displayed during
boot and in /proc/version. The default value is the output of the commands
whoami and host, respectively.
Documentation/kbuild/kconfig-language.txt
浏览文件 @ 8181d3ef
......@@ -113,6 +113,13 @@ applicable everywhere (see syntax).
That will limit the usefulness but on the other hand avoid
the illegal configurations all over.
- limiting menu display: "visible if" <expr>
This attribute is only applicable to menu blocks, if the condition is
false, the menu block is not displayed to the user (the symbols
contained there can still be selected by other symbols, though). It is
similar to a conditional "prompt" attribude for individual menu
entries. Default value of "visible" is true.
- numerical ranges: "range" <symbol> <symbol> ["if" <expr>]
This allows to limit the range of possible input values for int
and hex symbols. The user can only input a value which is larger than
......@@ -303,7 +310,8 @@ menu:
"endmenu"
This defines a menu block, see "Menu structure" above for more
information. The only possible options are dependencies.
information. The only possible options are dependencies and "visible"
attributes.
if:
......@@ -381,3 +389,25 @@ config FOO
limits FOO to module (=m) or disabled (=n).
Kconfig symbol existence
~~~~~~~~~~~~~~~~~~~~~~~~
The following two methods produce the same kconfig symbol dependencies
but differ greatly in kconfig symbol existence (production) in the
generated config file.
case 1:
config FOO
tristate "about foo"
depends on BAR
vs. case 2:
if BAR
config FOO
tristate "about foo"
endif
In case 1, the symbol FOO will always exist in the config file (given
no other dependencies). In case 2, the symbol FOO will only exist in
the config file if BAR is enabled.
Documentation/kbuild/kconfig.txt
浏览文件 @ 8181d3ef
......@@ -48,11 +48,6 @@ KCONFIG_OVERWRITECONFIG
If you set KCONFIG_OVERWRITECONFIG in the environment, Kconfig will not
break symlinks when .config is a symlink to somewhere else.
KCONFIG_NOTIMESTAMP
--------------------------------------------------
If this environment variable exists and is non-null, the timestamp line
in generated .config files is omitted.
______________________________________________________________________
Environment variables for '{allyes/allmod/allno/rand}config'
......
Documentation/kbuild/makefiles.txt
浏览文件 @ 8181d3ef
......@@ -40,11 +40,13 @@ This document describes the Linux kernel Makefiles.
--- 6.6 Commands useful for building a boot image
--- 6.7 Custom kbuild commands
--- 6.8 Preprocessing linker scripts
--- 6.9 Generic header files
=== 7 Kbuild syntax for exported headers
--- 7.1 header-y
--- 7.2 objhdr-y
--- 7.3 destination-y
--- 7.4 generic-y
=== 8 Kbuild Variables
=== 9 Makefile language
......@@ -499,6 +501,18 @@ more details, with real examples.
gcc >= 3.00. For gcc < 3.00, -malign-functions=4 is used.
Note: cc-option-align uses KBUILD_CFLAGS for $(CC) options
cc-disable-warning
cc-disable-warning checks if gcc supports a given warning and returns
the commandline switch to disable it. This special function is needed,
because gcc 4.4 and later accept any unknown -Wno-* option and only
warn about it if there is another warning in the source file.
Example:
KBUILD_CFLAGS += $(call cc-disable-warning, unused-but-set-variable)
In the above example, -Wno-unused-but-set-variable will be added to
KBUILD_CFLAGS only if gcc really accepts it.
cc-version
cc-version returns a numerical version of the $(CC) compiler version.
The format is <major><minor> where both are two digits. So for example
......@@ -955,6 +969,11 @@ When kbuild executes, the following steps are followed (roughly):
used when linking modules. This is often a linker script.
From commandline LDFLAGS_MODULE shall be used (see kbuild.txt).
KBUILD_ARFLAGS Options for $(AR) when creating archives
$(KBUILD_ARFLAGS) set by the top level Makefile to "D" (deterministic
mode) if this option is supported by $(AR).
--- 6.2 Add prerequisites to archprepare:
The archprepare: rule is used to list prerequisites that need to be
......@@ -1209,6 +1228,14 @@ When kbuild executes, the following steps are followed (roughly):
The kbuild infrastructure for *lds file are used in several
architecture-specific files.
--- 6.9 Generic header files
The directory include/asm-generic contains the header files
that may be shared between individual architectures.
The recommended approach how to use a generic header file is
to list the file in the Kbuild file.
See "7.4 generic-y" for further info on syntax etc.
=== 7 Kbuild syntax for exported headers
The kernel include a set of headers that is exported to userspace.
......@@ -1265,6 +1292,32 @@ See subsequent chapter for the syntax of the Kbuild file.
In the example above all exported headers in the Kbuild file
will be located in the directory "include/linux" when exported.
--- 7.4 generic-y
If an architecture uses a verbatim copy of a header from
include/asm-generic then this is listed in the file
arch/$(ARCH)/include/asm/Kbuild like this:
Example:
#arch/x86/include/asm/Kbuild
generic-y += termios.h
generic-y += rtc.h
During the prepare phase of the build a wrapper include
file is generated in the directory:
arch/$(ARCH)/include/generated/asm
When a header is exported where the architecture uses
the generic header a similar wrapper is generated as part
of the set of exported headers in the directory:
usr/include/asm
The generated wrapper will in both cases look like the following:
Example: termios.h
#include <asm-generic/termios.h>
=== 8 Kbuild Variables
......
Documentation/kernel-parameters.txt
浏览文件 @ 8181d3ef
......@@ -1777,9 +1777,6 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
nosoftlockup [KNL] Disable the soft-lockup detector.
noswapaccount [KNL] Disable accounting of swap in memory resource
controller. (See Documentation/cgroups/memory.txt)
nosync [HW,M68K] Disables sync negotiation for all devices.
notsc [BUGS=X86-32] Disable Time Stamp Counter
......
Documentation/laptops/acer-wmi.txt 已删除 100644 → 0
浏览文件 @ 54525552
Acer Laptop WMI Extras Driver
http://code.google.com/p/aceracpi
Version 0.3
4th April 2009
Copyright 2007-2009 Carlos Corbacho <carlos@strangeworlds.co.uk>
acer-wmi is a driver to allow you to control various parts of your Acer laptop
hardware under Linux which are exposed via ACPI-WMI.
This driver completely replaces the old out-of-tree acer_acpi, which I am
currently maintaining for bug fixes only on pre-2.6.25 kernels. All development
work is now focused solely on acer-wmi.
Disclaimer
**********
Acer and Wistron have provided nothing towards the development acer_acpi or
acer-wmi. All information we have has been through the efforts of the developers
and the users to discover as much as possible about the hardware.
As such, I do warn that this could break your hardware - this is extremely
unlikely of course, but please bear this in mind.
Background
**********
acer-wmi is derived from acer_acpi, originally developed by Mark
Smith in 2005, then taken over by Carlos Corbacho in 2007, in order to activate
the wireless LAN card under a 64-bit version of Linux, as acerhk[1] (the
previous solution to the problem) relied on making 32 bit BIOS calls which are
not possible in kernel space from a 64 bit OS.
[1] acerhk: http://www.cakey.de/acerhk/
Supported Hardware
******************
NOTE: The Acer Aspire One is not supported hardware. It cannot work with
acer-wmi until Acer fix their ACPI-WMI implementation on them, so has been
blacklisted until that happens.
Please see the website for the current list of known working hardware:
http://code.google.com/p/aceracpi/wiki/SupportedHardware
If your laptop is not listed, or listed as unknown, and works with acer-wmi,
please contact me with a copy of the DSDT.
If your Acer laptop doesn't work with acer-wmi, I would also like to see the
DSDT.
To send me the DSDT, as root/sudo:
cat /sys/firmware/acpi/tables/DSDT > dsdt
And send me the resulting 'dsdt' file.
Usage
*****
On Acer laptops, acer-wmi should already be autoloaded based on DMI matching.
For non-Acer laptops, until WMI based autoloading support is added, you will
need to manually load acer-wmi.
acer-wmi creates /sys/devices/platform/acer-wmi, and fills it with various
files whose usage is detailed below, which enables you to control some of the
following (varies between models):
* the wireless LAN card radio
* inbuilt Bluetooth adapter
* inbuilt 3G card
* mail LED of your laptop
* brightness of the LCD panel
Wireless
********
With regards to wireless, all acer-wmi does is enable the radio on the card. It
is not responsible for the wireless LED - once the radio is enabled, this is
down to the wireless driver for your card. So the behaviour of the wireless LED,
once you enable the radio, will depend on your hardware and driver combination.
e.g. With the BCM4318 on the Acer Aspire 5020 series:
ndiswrapper: Light blinks on when transmitting
b43: Solid light, blinks off when transmitting
Wireless radio control is unconditionally enabled - all Acer laptops that support
acer-wmi come with built-in wireless. However, should you feel so inclined to
ever wish to remove the card, or swap it out at some point, please get in touch
with me, as we may well be able to gain some data on wireless card detection.
The wireless radio is exposed through rfkill.
Bluetooth
*********
For bluetooth, this is an internal USB dongle, so once enabled, you will get
a USB device connection event, and a new USB device appears. When you disable
bluetooth, you get the reverse - a USB device disconnect event, followed by the
device disappearing again.
Bluetooth is autodetected by acer-wmi, so if you do not have a bluetooth module
installed in your laptop, this file won't exist (please be aware that it is
quite common for Acer not to fit bluetooth to their laptops - so just because
you have a bluetooth button on the laptop, doesn't mean that bluetooth is
installed).
For the adventurously minded - if you want to buy an internal bluetooth
module off the internet that is compatible with your laptop and fit it, then
it will work just fine with acer-wmi.
Bluetooth is exposed through rfkill.
3G
**
3G is currently not autodetected, so the 'threeg' file is always created under
sysfs. So far, no-one in possession of an Acer laptop with 3G built-in appears to
have tried Linux, or reported back, so we don't have any information on this.
If you have an Acer laptop that does have a 3G card in, please contact me so we
can properly detect these, and find out a bit more about them.
To read the status of the 3G card (0=off, 1=on):
cat /sys/devices/platform/acer-wmi/threeg
To enable the 3G card:
echo 1 > /sys/devices/platform/acer-wmi/threeg
To disable the 3G card:
echo 0 > /sys/devices/platform/acer-wmi/threeg
To set the state of the 3G card when loading acer-wmi, pass:
threeg=X (where X is 0 or 1)
Mail LED
********
This can be found in most older Acer laptops supported by acer-wmi, and many
newer ones - it is built into the 'mail' button, and blinks when active.
On newer (WMID) laptops though, we have no way of detecting the mail LED. If
your laptop identifies itself in dmesg as a WMID model, then please try loading
acer_acpi with:
force_series=2490
This will use a known alternative method of reading/ writing the mail LED. If
it works, please report back to me with the DMI data from your laptop so this
can be added to acer-wmi.
The LED is exposed through the LED subsystem, and can be found in:
/sys/devices/platform/acer-wmi/leds/acer-wmi::mail/
The mail LED is autodetected, so if you don't have one, the LED device won't
be registered.
Backlight
*********
The backlight brightness control is available on all acer-wmi supported
hardware. The maximum brightness level is usually 15, but on some newer laptops
it's 10 (this is again autodetected).
The backlight is exposed through the backlight subsystem, and can be found in:
/sys/devices/platform/acer-wmi/backlight/acer-wmi/
Credits
*******
Olaf Tauber, who did the real hard work when he developed acerhk
http://www.cakey.de/acerhk/
All the authors of laptop ACPI modules in the kernel, whose work
was an inspiration in the early days of acer_acpi
Mathieu Segaud, who solved the problem with having to modprobe the driver
twice in acer_acpi 0.2.
Jim Ramsay, who added support for the WMID interface
Mark Smith, who started the original acer_acpi
And the many people who have used both acer_acpi and acer-wmi.
Documentation/lockstat.txt
浏览文件 @ 8181d3ef
......@@ -12,8 +12,9 @@ Because things like lock contention can severely impact performance.
- HOW
Lockdep already has hooks in the lock functions and maps lock instances to
lock classes. We build on that. The graph below shows the relation between
the lock functions and the various hooks therein.
lock classes. We build on that (see Documentation/lockdep-design.txt).
The graph below shows the relation between the lock functions and the various
hooks therein.
__acquire
|
......@@ -128,6 +129,37 @@ points are the points we're contending with.
The integer part of the time values is in us.
Dealing with nested locks, subclasses may appear:
32...............................................................................................................................................................................................
33
34 &rq->lock: 13128 13128 0.43 190.53 103881.26 97454 3453404 0.00 401.11 13224683.11
35 ---------
36 &rq->lock 645 [<ffffffff8103bfc4>] task_rq_lock+0x43/0x75
37 &rq->lock 297 [<ffffffff8104ba65>] try_to_wake_up+0x127/0x25a
38 &rq->lock 360 [<ffffffff8103c4c5>] select_task_rq_fair+0x1f0/0x74a
39 &rq->lock 428 [<ffffffff81045f98>] scheduler_tick+0x46/0x1fb
40 ---------
41 &rq->lock 77 [<ffffffff8103bfc4>] task_rq_lock+0x43/0x75
42 &rq->lock 174 [<ffffffff8104ba65>] try_to_wake_up+0x127/0x25a
43 &rq->lock 4715 [<ffffffff8103ed4b>] double_rq_lock+0x42/0x54
44 &rq->lock 893 [<ffffffff81340524>] schedule+0x157/0x7b8
45
46...............................................................................................................................................................................................
47
48 &rq->lock/1: 11526 11488 0.33 388.73 136294.31 21461 38404 0.00 37.93 109388.53
49 -----------
50 &rq->lock/1 11526 [<ffffffff8103ed58>] double_rq_lock+0x4f/0x54
51 -----------
52 &rq->lock/1 5645 [<ffffffff8103ed4b>] double_rq_lock+0x42/0x54
53 &rq->lock/1 1224 [<ffffffff81340524>] schedule+0x157/0x7b8
54 &rq->lock/1 4336 [<ffffffff8103ed58>] double_rq_lock+0x4f/0x54
55 &rq->lock/1 181 [<ffffffff8104ba65>] try_to_wake_up+0x127/0x25a
Line 48 shows statistics for the second subclass (/1) of &rq->lock class
(subclass starts from 0), since in this case, as line 50 suggests,
double_rq_lock actually acquires a nested lock of two spinlocks.
View the top contending locks:
# grep : /proc/lock_stat | head
......@@ -136,7 +168,7 @@ View the top contending locks:
dcache_lock: 1037 1161 0.38 45.32 774.51 6611 243371 0.15 306.48 77387.24
&inode->i_mutex: 161 286 18446744073709 62882.54 1244614.55 3653 20598 18446744073709 62318.60 1693822.74
&zone->lru_lock: 94 94 0.53 7.33 92.10 4366 32690 0.29 59.81 16350.06
&inode->i_data.i_mmap_lock: 79 79 0.40 3.77 53.03 11779 87755 0.28 116.93 29898.44
&inode->i_data.i_mmap_mutex: 79 79 0.40 3.77 53.03 11779 87755 0.28 116.93 29898.44
&q->__queue_lock: 48 50 0.52 31.62 86.31 774 13131 0.17 113.08 12277.52
&rq->rq_lock_key: 43 47 0.74 68.50 170.63 3706 33929 0.22 107.99 17460.62
&rq->rq_lock_key#2: 39 46 0.75 6.68 49.03 2979 32292 0.17 125.17 17137.63
......
Documentation/mmc/00-INDEX
浏览文件 @ 8181d3ef
......@@ -2,3 +2,5 @@
- this file
mmc-dev-attrs.txt
- info on SD and MMC device attributes
mmc-dev-parts.txt
- info on SD and MMC device partitions
Documentation/mmc/mmc-dev-attrs.txt
浏览文件 @ 8181d3ef
SD and MMC Block Device Attributes
==================================
These attributes are defined for the block devices associated with the
SD or MMC device.
The following attributes are read/write.
force_ro Enforce read-only access even if write protect switch is off.
SD and MMC Device Attributes
============================
......
Documentation/mmc/mmc-dev-parts.txt 0 → 100644
浏览文件 @ 8181d3ef
SD and MMC Device Partitions
============================
Device partitions are additional logical block devices present on the
SD/MMC device.
As of this writing, MMC boot partitions as supported and exposed as
/dev/mmcblkXboot0 and /dev/mmcblkXboot1, where X is the index of the
parent /dev/mmcblkX.
MMC Boot Partitions
===================
Read and write access is provided to the two MMC boot partitions. Due to
the sensitive nature of the boot partition contents, which often store
a bootloader or bootloader configuration tables crucial to booting the
platform, write access is disabled by default to reduce the chance of
accidental bricking.
To enable write access to /dev/mmcblkXbootY, disable the forced read-only
access with:
echo 0 > /sys/block/mmcblkXbootY/force_ro
To re-enable read-only access:
echo 1 > /sys/block/mmcblkXbootY/force_ro
Documentation/networking/bonding.txt
浏览文件 @ 8181d3ef
......@@ -770,8 +770,17 @@ resend_igmp
a failover event. One membership report is issued immediately after
the failover, subsequent packets are sent in each 200ms interval.
The valid range is 0 - 255; the default value is 1. This option
was added for bonding version 3.7.0.
The valid range is 0 - 255; the default value is 1. A value of 0
prevents the IGMP membership report from being issued in response
to the failover event.
This option is useful for bonding modes balance-rr (0), active-backup
(1), balance-tlb (5) and balance-alb (6), in which a failover can
switch the IGMP traffic from one slave to another. Therefore a fresh
IGMP report must be issued to cause the switch to forward the incoming
IGMP traffic over the newly selected slave.
This option was added for bonding version 3.7.0.
3. Configuring Bonding Devices
==============================
......
Documentation/networking/dns_resolver.txt
浏览文件 @ 8181d3ef
......@@ -139,8 +139,8 @@ the key will be discarded and recreated when the data it holds has expired.
dns_query() returns a copy of the value attached to the key, or an error if
that is indicated instead.
See <file:Documentation/keys-request-key.txt> for further information about
request-key function.
See <file:Documentation/security/keys-request-key.txt> for further
information about request-key function.
=========
......
Documentation/power/regulator/machine.txt
浏览文件 @ 8181d3ef
......@@ -53,11 +53,11 @@ static struct regulator_init_data regulator1_data = {
Regulator-1 supplies power to Regulator-2. This relationship must be registered
with the core so that Regulator-1 is also enabled when Consumer A enables its
supply (Regulator-2). The supply regulator is set by the supply_regulator_dev
supply (Regulator-2). The supply regulator is set by the supply_regulator
field below:-
static struct regulator_init_data regulator2_data = {
.supply_regulator_dev = &platform_regulator1_device.dev,
.supply_regulator = "regulator_name",
.constraints = {
.min_uV = 1800000,
.max_uV = 2000000,
......
Documentation/ptp/ptp.txt 0 → 100644
浏览文件 @ 8181d3ef
* PTP hardware clock infrastructure for Linux
This patch set introduces support for IEEE 1588 PTP clocks in
Linux. Together with the SO_TIMESTAMPING socket options, this
presents a standardized method for developing PTP user space
programs, synchronizing Linux with external clocks, and using the
ancillary features of PTP hardware clocks.
A new class driver exports a kernel interface for specific clock
drivers and a user space interface. The infrastructure supports a
complete set of PTP hardware clock functionality.
+ Basic clock operations
- Set time
- Get time
- Shift the clock by a given offset atomically
- Adjust clock frequency
+ Ancillary clock features
- One short or periodic alarms, with signal delivery to user program
- Time stamp external events
- Period output signals configurable from user space
- Synchronization of the Linux system time via the PPS subsystem
** PTP hardware clock kernel API
A PTP clock driver registers itself with the class driver. The
class driver handles all of the dealings with user space. The
author of a clock driver need only implement the details of
programming the clock hardware. The clock driver notifies the class
driver of asynchronous events (alarms and external time stamps) via
a simple message passing interface.
The class driver supports multiple PTP clock drivers. In normal use
cases, only one PTP clock is needed. However, for testing and
development, it can be useful to have more than one clock in a
single system, in order to allow performance comparisons.
** PTP hardware clock user space API
The class driver also creates a character device for each
registered clock. User space can use an open file descriptor from
the character device as a POSIX clock id and may call
clock_gettime, clock_settime, and clock_adjtime. These calls
implement the basic clock operations.
User space programs may control the clock using standardized
ioctls. A program may query, enable, configure, and disable the
ancillary clock features. User space can receive time stamped
events via blocking read() and poll(). One shot and periodic
signals may be configured via the POSIX timer_settime() system
call.
** Writing clock drivers
Clock drivers include include/linux/ptp_clock_kernel.h and register
themselves by presenting a 'struct ptp_clock_info' to the
registration method. Clock drivers must implement all of the
functions in the interface. If a clock does not offer a particular
ancillary feature, then the driver should just return -EOPNOTSUPP
from those functions.
Drivers must ensure that all of the methods in interface are
reentrant. Since most hardware implementations treat the time value
as a 64 bit integer accessed as two 32 bit registers, drivers
should use spin_lock_irqsave/spin_unlock_irqrestore to protect
against concurrent access. This locking cannot be accomplished in
class driver, since the lock may also be needed by the clock
driver's interrupt service routine.
** Supported hardware
+ Freescale eTSEC gianfar
- 2 Time stamp external triggers, programmable polarity (opt. interrupt)
- 2 Alarm registers (optional interrupt)
- 3 Periodic signals (optional interrupt)
+ National DP83640
- 6 GPIOs programmable as inputs or outputs
- 6 GPIOs with dedicated functions (LED/JTAG/clock) can also be
used as general inputs or outputs
- GPIO inputs can time stamp external triggers
- GPIO outputs can produce periodic signals
- 1 interrupt pin
+ Intel IXP465
- Auxiliary Slave/Master Mode Snapshot (optional interrupt)
- Target Time (optional interrupt)
Documentation/ptp/testptp.c 0 → 100644
浏览文件 @ 8181d3ef
/*
* PTP 1588 clock support - User space test program
*
* Copyright (C) 2010 OMICRON electronics GmbH
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <errno.h>
#include <fcntl.h>
#include <math.h>
#include <signal.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/ioctl.h>
#include <sys/mman.h>
#include <sys/stat.h>
#include <sys/time.h>
#include <sys/timex.h>
#include <sys/types.h>
#include <time.h>
#include <unistd.h>
#include <linux/ptp_clock.h>
#define DEVICE "/dev/ptp0"
#ifndef ADJ_SETOFFSET
#define ADJ_SETOFFSET 0x0100
#endif
#ifndef CLOCK_INVALID
#define CLOCK_INVALID -1
#endif
/* When glibc offers the syscall, this will go away. */
#include <sys/syscall.h>
static int clock_adjtime(clockid_t id, struct timex *tx)
{
return syscall(__NR_clock_adjtime, id, tx);
}
static clockid_t get_clockid(int fd)
{
#define CLOCKFD 3
#define FD_TO_CLOCKID(fd) ((~(clockid_t) (fd) << 3) | CLOCKFD)
return FD_TO_CLOCKID(fd);
}
static void handle_alarm(int s)
{
printf("received signal %d\n", s);
}
static int install_handler(int signum, void (*handler)(int))
{
struct sigaction action;
sigset_t mask;
/* Unblock the signal. */
sigemptyset(&mask);
sigaddset(&mask, signum);
sigprocmask(SIG_UNBLOCK, &mask, NULL);
/* Install the signal handler. */
action.sa_handler = handler;
action.sa_flags = 0;
sigemptyset(&action.sa_mask);
sigaction(signum, &action, NULL);
return 0;
}
static long ppb_to_scaled_ppm(int ppb)
{
/*
* The 'freq' field in the 'struct timex' is in parts per
* million, but with a 16 bit binary fractional field.
* Instead of calculating either one of
*
* scaled_ppm = (ppb / 1000) << 16 [1]
* scaled_ppm = (ppb << 16) / 1000 [2]
*
* we simply use double precision math, in order to avoid the
* truncation in [1] and the possible overflow in [2].
*/
return (long) (ppb * 65.536);
}
static void usage(char *progname)
{
fprintf(stderr,
"usage: %s [options]\n"
" -a val request a one-shot alarm after 'val' seconds\n"
" -A val request a periodic alarm every 'val' seconds\n"
" -c query the ptp clock's capabilities\n"
" -d name device to open\n"
" -e val read 'val' external time stamp events\n"
" -f val adjust the ptp clock frequency by 'val' ppb\n"
" -g get the ptp clock time\n"
" -h prints this message\n"
" -p val enable output with a period of 'val' nanoseconds\n"
" -P val enable or disable (val=1|0) the system clock PPS\n"
" -s set the ptp clock time from the system time\n"
" -S set the system time from the ptp clock time\n"
" -t val shift the ptp clock time by 'val' seconds\n",
progname);
}
int main(int argc, char *argv[])
{
struct ptp_clock_caps caps;
struct ptp_extts_event event;
struct ptp_extts_request extts_request;
struct ptp_perout_request perout_request;
struct timespec ts;
struct timex tx;
static timer_t timerid;
struct itimerspec timeout;
struct sigevent sigevent;
char *progname;
int c, cnt, fd;
char *device = DEVICE;
clockid_t clkid;
int adjfreq = 0x7fffffff;
int adjtime = 0;
int capabilities = 0;
int extts = 0;
int gettime = 0;
int oneshot = 0;
int periodic = 0;
int perout = -1;
int pps = -1;
int settime = 0;
progname = strrchr(argv[0], '/');
progname = progname ? 1+progname : argv[0];
while (EOF != (c = getopt(argc, argv, "a:A:cd:e:f:ghp:P:sSt:v"))) {
switch (c) {
case 'a':
oneshot = atoi(optarg);
break;
case 'A':
periodic = atoi(optarg);
break;
case 'c':
capabilities = 1;
break;
case 'd':
device = optarg;
break;
case 'e':
extts = atoi(optarg);
break;
case 'f':
adjfreq = atoi(optarg);
break;
case 'g':
gettime = 1;
break;
case 'p':
perout = atoi(optarg);
break;
case 'P':
pps = atoi(optarg);
break;
case 's':
settime = 1;
break;
case 'S':
settime = 2;
break;
case 't':
adjtime = atoi(optarg);
break;
case 'h':
usage(progname);
return 0;
case '?':
default:
usage(progname);
return -1;
}
}
fd = open(device, O_RDWR);
if (fd < 0) {
fprintf(stderr, "opening %s: %s\n", device, strerror(errno));
return -1;
}
clkid = get_clockid(fd);
if (CLOCK_INVALID == clkid) {
fprintf(stderr, "failed to read clock id\n");
return -1;
}
if (capabilities) {
if (ioctl(fd, PTP_CLOCK_GETCAPS, &caps)) {
perror("PTP_CLOCK_GETCAPS");
} else {
printf("capabilities:\n"
" %d maximum frequency adjustment (ppb)\n"
" %d programmable alarms\n"
" %d external time stamp channels\n"
" %d programmable periodic signals\n"
" %d pulse per second\n",
caps.max_adj,
caps.n_alarm,
caps.n_ext_ts,
caps.n_per_out,
caps.pps);
}
}
if (0x7fffffff != adjfreq) {
memset(&tx, 0, sizeof(tx));
tx.modes = ADJ_FREQUENCY;
tx.freq = ppb_to_scaled_ppm(adjfreq);
if (clock_adjtime(clkid, &tx)) {
perror("clock_adjtime");
} else {
puts("frequency adjustment okay");
}
}
if (adjtime) {
memset(&tx, 0, sizeof(tx));
tx.modes = ADJ_SETOFFSET;
tx.time.tv_sec = adjtime;
tx.time.tv_usec = 0;
if (clock_adjtime(clkid, &tx) < 0) {
perror("clock_adjtime");
} else {
puts("time shift okay");
}
}
if (gettime) {
if (clock_gettime(clkid, &ts)) {
perror("clock_gettime");
} else {
printf("clock time: %ld.%09ld or %s",
ts.tv_sec, ts.tv_nsec, ctime(&ts.tv_sec));
}
}
if (settime == 1) {
clock_gettime(CLOCK_REALTIME, &ts);
if (clock_settime(clkid, &ts)) {
perror("clock_settime");
} else {
puts("set time okay");
}
}
if (settime == 2) {
clock_gettime(clkid, &ts);
if (clock_settime(CLOCK_REALTIME, &ts)) {
perror("clock_settime");
} else {
puts("set time okay");
}
}
if (extts) {
memset(&extts_request, 0, sizeof(extts_request));
extts_request.index = 0;
extts_request.flags = PTP_ENABLE_FEATURE;
if (ioctl(fd, PTP_EXTTS_REQUEST, &extts_request)) {
perror("PTP_EXTTS_REQUEST");
extts = 0;
} else {
puts("external time stamp request okay");
}
for (; extts; extts--) {
cnt = read(fd, &event, sizeof(event));
if (cnt != sizeof(event)) {
perror("read");
break;
}
printf("event index %u at %lld.%09u\n", event.index,
event.t.sec, event.t.nsec);
fflush(stdout);
}
/* Disable the feature again. */
extts_request.flags = 0;
if (ioctl(fd, PTP_EXTTS_REQUEST, &extts_request)) {
perror("PTP_EXTTS_REQUEST");
}
}
if (oneshot) {
install_handler(SIGALRM, handle_alarm);
/* Create a timer. */
sigevent.sigev_notify = SIGEV_SIGNAL;
sigevent.sigev_signo = SIGALRM;
if (timer_create(clkid, &sigevent, &timerid)) {
perror("timer_create");
return -1;
}
/* Start the timer. */
memset(&timeout, 0, sizeof(timeout));
timeout.it_value.tv_sec = oneshot;
if (timer_settime(timerid, 0, &timeout, NULL)) {
perror("timer_settime");
return -1;
}
pause();
timer_delete(timerid);
}
if (periodic) {
install_handler(SIGALRM, handle_alarm);
/* Create a timer. */
sigevent.sigev_notify = SIGEV_SIGNAL;
sigevent.sigev_signo = SIGALRM;
if (timer_create(clkid, &sigevent, &timerid)) {
perror("timer_create");
return -1;
}
/* Start the timer. */
memset(&timeout, 0, sizeof(timeout));
timeout.it_interval.tv_sec = periodic;
timeout.it_value.tv_sec = periodic;
if (timer_settime(timerid, 0, &timeout, NULL)) {
perror("timer_settime");
return -1;
}
while (1) {
pause();
}
timer_delete(timerid);
}
if (perout >= 0) {
if (clock_gettime(clkid, &ts)) {
perror("clock_gettime");
return -1;
}
memset(&perout_request, 0, sizeof(perout_request));
perout_request.index = 0;
perout_request.start.sec = ts.tv_sec + 2;
perout_request.start.nsec = 0;
perout_request.period.sec = 0;
perout_request.period.nsec = perout;
if (ioctl(fd, PTP_PEROUT_REQUEST, &perout_request)) {
perror("PTP_PEROUT_REQUEST");
} else {
puts("periodic output request okay");
}
}
if (pps != -1) {
int enable = pps ? 1 : 0;
if (ioctl(fd, PTP_ENABLE_PPS, enable)) {
perror("PTP_ENABLE_PPS");
} else {
puts("pps for system time request okay");
}
}
close(fd);
return 0;
}
Documentation/ptp/testptp.mk 0 → 100644
浏览文件 @ 8181d3ef
# PTP 1588 clock support - User space test program
#
# Copyright (C) 2010 OMICRON electronics GmbH
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
CC = $(CROSS_COMPILE)gcc
INC = -I$(KBUILD_OUTPUT)/usr/include
CFLAGS = -Wall $(INC)
LDLIBS = -lrt
PROGS = testptp
all: $(PROGS)
testptp: testptp.o
clean:
rm -f testptp.o
distclean: clean
rm -f $(PROGS)
Documentation/scsi/ChangeLog.megaraid_sas
浏览文件 @ 8181d3ef
Release Date : Wed. May 11, 2011 17:00:00 PST 2010 -
(emaild-id:megaraidlinux@lsi.com)
Adam Radford
Current Version : 00.00.05.38-rc1
Old Version : 00.00.05.34-rc1
1. Remove MSI-X black list, use MFI_REG_STATE.ready.msiEnable.
2. Remove un-used function megasas_return_cmd_for_smid().
3. Check MFI_REG_STATE.fault.resetAdapter in megasas_reset_fusion().
4. Disable interrupts/free_irq() in megasas_shutdown().
5. Fix bug where AENs could be lost in probe() and resume().
6. Convert 6,10,12 byte CDB's to 16 byte CDB for large LBA's for FastPath
IO.
7. Add 1078 OCR support.
-------------------------------------------------------------------------------
Release Date : Thu. Feb 24, 2011 17:00:00 PST 2010 -
(emaild-id:megaraidlinux@lsi.com)
Adam Radford
......
Documentation/security/00-INDEX 0 → 100644
浏览文件 @ 8181d3ef
00-INDEX
- this file.
SELinux.txt
- how to get started with the SELinux security enhancement.
Smack.txt
- documentation on the Smack Linux Security Module.
apparmor.txt
- documentation on the AppArmor security extension.
credentials.txt
- documentation about credentials in Linux.
keys-request-key.txt
- description of the kernel key request service.
keys-trusted-encrypted.txt
- info on the Trusted and Encrypted keys in the kernel key ring service.
keys.txt
- description of the kernel key retention service.
tomoyo.txt
- documentation on the TOMOYO Linux Security Module.
Documentation/credentials.txt → Documentation/security/credentials.txt
浏览文件 @ 8181d3ef
......@@ -216,7 +216,7 @@ The Linux kernel supports the following types of credentials:
When a process accesses a key, if not already present, it will normally be
cached on one of these keyrings for future accesses to find.
For more information on using keys, see Documentation/keys.txt.
For more information on using keys, see Documentation/security/keys.txt.
(5) LSM
......
Documentation/keys-request-key.txt → Documentation/security/keys-request-key.txt
浏览文件 @ 8181d3ef
......@@ -3,8 +3,8 @@
===================
The key request service is part of the key retention service (refer to
Documentation/keys.txt). This document explains more fully how the requesting
algorithm works.
Documentation/security/keys.txt). This document explains more fully how
the requesting algorithm works.
The process starts by either the kernel requesting a service by calling
request_key*():
......
Documentation/keys.txt → Documentation/security/keys.txt
浏览文件 @ 8181d3ef
......@@ -434,7 +434,7 @@ The main syscalls are:
/sbin/request-key will be invoked in an attempt to obtain a key. The
callout_info string will be passed as an argument to the program.
See also Documentation/keys-request-key.txt.
See also Documentation/security/keys-request-key.txt.
The keyctl syscall functions are:
......@@ -864,7 +864,7 @@ payload contents" for more information.
If successful, the key will have been attached to the default keyring for
implicitly obtained request-key keys, as set by KEYCTL_SET_REQKEY_KEYRING.
See also Documentation/keys-request-key.txt.
See also Documentation/security/keys-request-key.txt.
(*) To search for a key, passing auxiliary data to the upcaller, call:
......
Documentation/sysctl/kernel.txt
浏览文件 @ 8181d3ef
......@@ -161,7 +161,8 @@ core_pattern is used to specify a core dumpfile pattern name.
%s signal number
%t UNIX time of dump
%h hostname
%e executable filename
%e executable filename (may be shortened)
%E executable path
%<OTHER> both are dropped
. If the first character of the pattern is a '|', the kernel will treat
the rest of the pattern as a command to run. The core dump will be
......
Documentation/virtual/uml/UserModeLinux-HOWTO.txt
浏览文件 @ 8181d3ef
......@@ -1182,6 +1182,16 @@
forge.net/> and explains these in detail, as well as
some other issues.
There is also a related point-to-point only "ucast" transport.
This is useful when your network does not support multicast, and
all network connections are simple point to point links.
The full set of command line options for this transport are
ethn=ucast,ethernet address,remote address,listen port,remote port
66..66.. TTUUNN//TTAAPP wwiitthh tthhee uummll__nneett hheellppeerr
......
Documentation/vm/cleancache.txt 0 → 100644
浏览文件 @ 8181d3ef
MOTIVATION
Cleancache is a new optional feature provided by the VFS layer that
potentially dramatically increases page cache effectiveness for
many workloads in many environments at a negligible cost.
Cleancache can be thought of as a page-granularity victim cache for clean
pages that the kernel's pageframe replacement algorithm (PFRA) would like
to keep around, but can't since there isn't enough memory. So when the
PFRA "evicts" a page, it first attempts to use cleancache code to
put the data contained in that page into "transcendent memory", memory
that is not directly accessible or addressable by the kernel and is
of unknown and possibly time-varying size.
Later, when a cleancache-enabled filesystem wishes to access a page
in a file on disk, it first checks cleancache to see if it already
contains it; if it does, the page of data is copied into the kernel
and a disk access is avoided.
Transcendent memory "drivers" for cleancache are currently implemented
in Xen (using hypervisor memory) and zcache (using in-kernel compressed
memory) and other implementations are in development.
FAQs are included below.
IMPLEMENTATION OVERVIEW
A cleancache "backend" that provides transcendent memory registers itself
to the kernel's cleancache "frontend" by calling cleancache_register_ops,
passing a pointer to a cleancache_ops structure with funcs set appropriately.
Note that cleancache_register_ops returns the previous settings so that
chaining can be performed if desired. The functions provided must conform to
certain semantics as follows:
Most important, cleancache is "ephemeral". Pages which are copied into
cleancache have an indefinite lifetime which is completely unknowable
by the kernel and so may or may not still be in cleancache at any later time.
Thus, as its name implies, cleancache is not suitable for dirty pages.
Cleancache has complete discretion over what pages to preserve and what
pages to discard and when.
Mounting a cleancache-enabled filesystem should call "init_fs" to obtain a
pool id which, if positive, must be saved in the filesystem's superblock;
a negative return value indicates failure. A "put_page" will copy a
(presumably about-to-be-evicted) page into cleancache and associate it with
the pool id, a file key, and a page index into the file. (The combination
of a pool id, a file key, and an index is sometimes called a "handle".)
A "get_page" will copy the page, if found, from cleancache into kernel memory.
A "flush_page" will ensure the page no longer is present in cleancache;
a "flush_inode" will flush all pages associated with the specified file;
and, when a filesystem is unmounted, a "flush_fs" will flush all pages in
all files specified by the given pool id and also surrender the pool id.
An "init_shared_fs", like init_fs, obtains a pool id but tells cleancache
to treat the pool as shared using a 128-bit UUID as a key. On systems
that may run multiple kernels (such as hard partitioned or virtualized
systems) that may share a clustered filesystem, and where cleancache
may be shared among those kernels, calls to init_shared_fs that specify the
same UUID will receive the same pool id, thus allowing the pages to
be shared. Note that any security requirements must be imposed outside
of the kernel (e.g. by "tools" that control cleancache). Or a
cleancache implementation can simply disable shared_init by always
returning a negative value.
If a get_page is successful on a non-shared pool, the page is flushed (thus
making cleancache an "exclusive" cache). On a shared pool, the page
is NOT flushed on a successful get_page so that it remains accessible to
other sharers. The kernel is responsible for ensuring coherency between
cleancache (shared or not), the page cache, and the filesystem, using
cleancache flush operations as required.
Note that cleancache must enforce put-put-get coherency and get-get
coherency. For the former, if two puts are made to the same handle but
with different data, say AAA by the first put and BBB by the second, a
subsequent get can never return the stale data (AAA). For get-get coherency,
if a get for a given handle fails, subsequent gets for that handle will
never succeed unless preceded by a successful put with that handle.
Last, cleancache provides no SMP serialization guarantees; if two
different Linux threads are simultaneously putting and flushing a page
with the same handle, the results are indeterminate. Callers must
lock the page to ensure serial behavior.
CLEANCACHE PERFORMANCE METRICS
Cleancache monitoring is done by sysfs files in the
/sys/kernel/mm/cleancache directory. The effectiveness of cleancache
can be measured (across all filesystems) with:
succ_gets - number of gets that were successful
failed_gets - number of gets that failed
puts - number of puts attempted (all "succeed")
flushes - number of flushes attempted
A backend implementatation may provide additional metrics.
FAQ
1) Where's the value? (Andrew Morton)
Cleancache provides a significant performance benefit to many workloads
in many environments with negligible overhead by improving the
effectiveness of the pagecache. Clean pagecache pages are
saved in transcendent memory (RAM that is otherwise not directly
addressable to the kernel); fetching those pages later avoids "refaults"
and thus disk reads.
Cleancache (and its sister code "frontswap") provide interfaces for
this transcendent memory (aka "tmem"), which conceptually lies between
fast kernel-directly-addressable RAM and slower DMA/asynchronous devices.
Disallowing direct kernel or userland reads/writes to tmem
is ideal when data is transformed to a different form and size (such
as with compression) or secretly moved (as might be useful for write-
balancing for some RAM-like devices). Evicted page-cache pages (and
swap pages) are a great use for this kind of slower-than-RAM-but-much-
faster-than-disk transcendent memory, and the cleancache (and frontswap)
"page-object-oriented" specification provides a nice way to read and
write -- and indirectly "name" -- the pages.
In the virtual case, the whole point of virtualization is to statistically
multiplex physical resources across the varying demands of multiple
virtual machines. This is really hard to do with RAM and efforts to
do it well with no kernel change have essentially failed (except in some
well-publicized special-case workloads). Cleancache -- and frontswap --
with a fairly small impact on the kernel, provide a huge amount
of flexibility for more dynamic, flexible RAM multiplexing.
Specifically, the Xen Transcendent Memory backend allows otherwise
"fallow" hypervisor-owned RAM to not only be "time-shared" between multiple
virtual machines, but the pages can be compressed and deduplicated to
optimize RAM utilization. And when guest OS's are induced to surrender
underutilized RAM (e.g. with "self-ballooning"), page cache pages
are the first to go, and cleancache allows those pages to be
saved and reclaimed if overall host system memory conditions allow.
And the identical interface used for cleancache can be used in
physical systems as well. The zcache driver acts as a memory-hungry
device that stores pages of data in a compressed state. And
the proposed "RAMster" driver shares RAM across multiple physical
systems.
2) Why does cleancache have its sticky fingers so deep inside the
filesystems and VFS? (Andrew Morton and Christoph Hellwig)
The core hooks for cleancache in VFS are in most cases a single line
and the minimum set are placed precisely where needed to maintain
coherency (via cleancache_flush operations) between cleancache,
the page cache, and disk. All hooks compile into nothingness if
cleancache is config'ed off and turn into a function-pointer-
compare-to-NULL if config'ed on but no backend claims the ops
functions, or to a compare-struct-element-to-negative if a
backend claims the ops functions but a filesystem doesn't enable
cleancache.
Some filesystems are built entirely on top of VFS and the hooks
in VFS are sufficient, so don't require an "init_fs" hook; the
initial implementation of cleancache didn't provide this hook.
But for some filesystems (such as btrfs), the VFS hooks are
incomplete and one or more hooks in fs-specific code are required.
And for some other filesystems, such as tmpfs, cleancache may
be counterproductive. So it seemed prudent to require a filesystem
to "opt in" to use cleancache, which requires adding a hook in
each filesystem. Not all filesystems are supported by cleancache
only because they haven't been tested. The existing set should
be sufficient to validate the concept, the opt-in approach means
that untested filesystems are not affected, and the hooks in the
existing filesystems should make it very easy to add more
filesystems in the future.
The total impact of the hooks to existing fs and mm files is only
about 40 lines added (not counting comments and blank lines).
3) Why not make cleancache asynchronous and batched so it can
more easily interface with real devices with DMA instead
of copying each individual page? (Minchan Kim)
The one-page-at-a-time copy semantics simplifies the implementation
on both the frontend and backend and also allows the backend to
do fancy things on-the-fly like page compression and
page deduplication. And since the data is "gone" (copied into/out
of the pageframe) before the cleancache get/put call returns,
a great deal of race conditions and potential coherency issues
are avoided. While the interface seems odd for a "real device"
or for real kernel-addressable RAM, it makes perfect sense for
transcendent memory.
4) Why is non-shared cleancache "exclusive"? And where is the
page "flushed" after a "get"? (Minchan Kim)
The main reason is to free up space in transcendent memory and
to avoid unnecessary cleancache_flush calls. If you want inclusive,
the page can be "put" immediately following the "get". If
put-after-get for inclusive becomes common, the interface could
be easily extended to add a "get_no_flush" call.
The flush is done by the cleancache backend implementation.
5) What's the performance impact?
Performance analysis has been presented at OLS'09 and LCA'10.
Briefly, performance gains can be significant on most workloads,
especially when memory pressure is high (e.g. when RAM is
overcommitted in a virtual workload); and because the hooks are
invoked primarily in place of or in addition to a disk read/write,
overhead is negligible even in worst case workloads. Basically
cleancache replaces I/O with memory-copy-CPU-overhead; on older
single-core systems with slow memory-copy speeds, cleancache
has little value, but in newer multicore machines, especially
consolidated/virtualized machines, it has great value.
6) How do I add cleancache support for filesystem X? (Boaz Harrash)
Filesystems that are well-behaved and conform to certain
restrictions can utilize cleancache simply by making a call to
cleancache_init_fs at mount time. Unusual, misbehaving, or
poorly layered filesystems must either add additional hooks
and/or undergo extensive additional testing... or should just
not enable the optional cleancache.
Some points for a filesystem to consider:
- The FS should be block-device-based (e.g. a ram-based FS such
as tmpfs should not enable cleancache)
- To ensure coherency/correctness, the FS must ensure that all
file removal or truncation operations either go through VFS or
add hooks to do the equivalent cleancache "flush" operations
- To ensure coherency/correctness, either inode numbers must
be unique across the lifetime of the on-disk file OR the
FS must provide an "encode_fh" function.
- The FS must call the VFS superblock alloc and deactivate routines
or add hooks to do the equivalent cleancache calls done there.
- To maximize performance, all pages fetched from the FS should
go through the do_mpag_readpage routine or the FS should add
hooks to do the equivalent (cf. btrfs)
- Currently, the FS blocksize must be the same as PAGESIZE. This
is not an architectural restriction, but no backends currently
support anything different.
- A clustered FS should invoke the "shared_init_fs" cleancache
hook to get best performance for some backends.
7) Why not use the KVA of the inode as the key? (Christoph Hellwig)
If cleancache would use the inode virtual address instead of
inode/filehandle, the pool id could be eliminated. But, this
won't work because cleancache retains pagecache data pages
persistently even when the inode has been pruned from the
inode unused list, and only flushes the data page if the file
gets removed/truncated. So if cleancache used the inode kva,
there would be potential coherency issues if/when the inode
kva is reused for a different file. Alternately, if cleancache
flushed the pages when the inode kva was freed, much of the value
of cleancache would be lost because the cache of pages in cleanache
is potentially much larger than the kernel pagecache and is most
useful if the pages survive inode cache removal.
8) Why is a global variable required?
The cleancache_enabled flag is checked in all of the frequently-used
cleancache hooks. The alternative is a function call to check a static
variable. Since cleancache is enabled dynamically at runtime, systems
that don't enable cleancache would suffer thousands (possibly
tens-of-thousands) of unnecessary function calls per second. So the
global variable allows cleancache to be enabled by default at compile
time, but have insignificant performance impact when cleancache remains
disabled at runtime.
9) Does cleanache work with KVM?
The memory model of KVM is sufficiently different that a cleancache
backend may have less value for KVM. This remains to be tested,
especially in an overcommitted system.
10) Does cleancache work in userspace? It sounds useful for
memory hungry caches like web browsers. (Jamie Lokier)
No plans yet, though we agree it sounds useful, at least for
apps that bypass the page cache (e.g. O_DIRECT).
Last updated: Dan Magenheimer, April 13 2011
Documentation/vm/locking
浏览文件 @ 8181d3ef
......@@ -66,7 +66,7 @@ in some cases it is not really needed. Eg, vm_start is modified by
expand_stack(), it is hard to come up with a destructive scenario without
having the vmlist protection in this case.
The page_table_lock nests with the inode i_mmap_lock and the kmem cache
The page_table_lock nests with the inode i_mmap_mutex and the kmem cache
c_spinlock spinlocks. This is okay, since the kmem code asks for pages after
dropping c_spinlock. The page_table_lock also nests with pagecache_lock and
pagemap_lru_lock spinlocks, and no code asks for memory with these locks
......
MAINTAINERS
浏览文件 @ 8181d3ef
......@@ -223,10 +223,8 @@ S: Maintained
F: drivers/platform/x86/acerhdf.c
ACER WMI LAPTOP EXTRAS
M: Carlos Corbacho <carlos@strangeworlds.co.uk>
L: aceracpi@googlegroups.com (subscribers-only)
M: Joey Lee <jlee@novell.com>
L: platform-driver-x86@vger.kernel.org
W: http://code.google.com/p/aceracpi
S: Maintained
F: drivers/platform/x86/acer-wmi.c
......@@ -271,10 +269,8 @@ S: Supported
F: drivers/acpi/video.c
ACPI WMI DRIVER
M: Carlos Corbacho <carlos@strangeworlds.co.uk>
L: platform-driver-x86@vger.kernel.org
W: http://www.lesswatts.org/projects/acpi/
S: Maintained
S: Orphan
F: drivers/platform/x86/wmi.c
AD1889 ALSA SOUND DRIVER
......@@ -287,35 +283,35 @@ F: sound/pci/ad1889.*
AD525X ANALOG DEVICES DIGITAL POTENTIOMETERS DRIVER
M: Michael Hennerich <michael.hennerich@analog.com>
L: device-driver-devel@blackfin.uclinux.org
L: device-drivers-devel@blackfin.uclinux.org
W: http://wiki.analog.com/AD5254
S: Supported
F: drivers/misc/ad525x_dpot.c
AD5398 CURRENT REGULATOR DRIVER (AD5398/AD5821)
M: Michael Hennerich <michael.hennerich@analog.com>
L: device-driver-devel@blackfin.uclinux.org
L: device-drivers-devel@blackfin.uclinux.org
W: http://wiki.analog.com/AD5398
S: Supported
F: drivers/regulator/ad5398.c
AD714X CAPACITANCE TOUCH SENSOR DRIVER (AD7142/3/7/8/7A)
M: Michael Hennerich <michael.hennerich@analog.com>
L: device-driver-devel@blackfin.uclinux.org
L: device-drivers-devel@blackfin.uclinux.org
W: http://wiki.analog.com/AD7142
S: Supported
F: drivers/input/misc/ad714x.c
AD7877 TOUCHSCREEN DRIVER
M: Michael Hennerich <michael.hennerich@analog.com>
L: device-driver-devel@blackfin.uclinux.org
L: device-drivers-devel@blackfin.uclinux.org
W: http://wiki.analog.com/AD7877
S: Supported
F: drivers/input/touchscreen/ad7877.c
AD7879 TOUCHSCREEN DRIVER (AD7879/AD7889)
M: Michael Hennerich <michael.hennerich@analog.com>
L: device-driver-devel@blackfin.uclinux.org
L: device-drivers-devel@blackfin.uclinux.org
W: http://wiki.analog.com/AD7879
S: Supported
F: drivers/input/touchscreen/ad7879.c
......@@ -341,7 +337,7 @@ F: drivers/net/wireless/adm8211.*
ADP5520 BACKLIGHT DRIVER WITH IO EXPANDER (ADP5520/ADP5501)
M: Michael Hennerich <michael.hennerich@analog.com>
L: device-driver-devel@blackfin.uclinux.org
L: device-drivers-devel@blackfin.uclinux.org
W: http://wiki.analog.com/ADP5520
S: Supported
F: drivers/mfd/adp5520.c
......@@ -352,7 +348,7 @@ F: drivers/input/keyboard/adp5520-keys.c
ADP5588 QWERTY KEYPAD AND IO EXPANDER DRIVER (ADP5588/ADP5587)
M: Michael Hennerich <michael.hennerich@analog.com>
L: device-driver-devel@blackfin.uclinux.org
L: device-drivers-devel@blackfin.uclinux.org
W: http://wiki.analog.com/ADP5588
S: Supported
F: drivers/input/keyboard/adp5588-keys.c
......@@ -360,7 +356,7 @@ F: drivers/gpio/adp5588-gpio.c
ADP8860 BACKLIGHT DRIVER (ADP8860/ADP8861/ADP8863)
M: Michael Hennerich <michael.hennerich@analog.com>
L: device-driver-devel@blackfin.uclinux.org
L: device-drivers-devel@blackfin.uclinux.org
W: http://wiki.analog.com/ADP8860
S: Supported
F: drivers/video/backlight/adp8860_bl.c
......@@ -387,7 +383,7 @@ F: drivers/hwmon/adt7475.c
ADXL34X THREE-AXIS DIGITAL ACCELEROMETER DRIVER (ADXL345/ADXL346)
M: Michael Hennerich <michael.hennerich@analog.com>
L: device-driver-devel@blackfin.uclinux.org
L: device-drivers-devel@blackfin.uclinux.org
W: http://wiki.analog.com/ADXL345
S: Supported
F: drivers/input/misc/adxl34x.c
......@@ -483,6 +479,13 @@ F: drivers/tty/serial/altera_jtaguart.c
F: include/linux/altera_uart.h
F: include/linux/altera_jtaguart.h
AMD FAM15H PROCESSOR POWER MONITORING DRIVER
M: Andreas Herrmann <andreas.herrmann3@amd.com>
L: lm-sensors@lm-sensors.org
S: Maintained
F: Documentation/hwmon/fam15h_power
F: drivers/hwmon/fam15h_power.c
AMD GEODE CS5536 USB DEVICE CONTROLLER DRIVER
M: Thomas Dahlmann <dahlmann.thomas@arcor.de>
L: linux-geode@lists.infradead.org (moderated for non-subscribers)
......@@ -526,7 +529,7 @@ S: Maintained
F: drivers/infiniband/hw/amso1100/
ANALOG DEVICES INC ASOC CODEC DRIVERS
L: device-driver-devel@blackfin.uclinux.org
L: device-drivers-devel@blackfin.uclinux.org
L: alsa-devel@alsa-project.org (moderated for non-subscribers)
W: http://wiki.analog.com/
S: Supported
......@@ -924,6 +927,8 @@ F: drivers/mmc/host/msm_sdcc.h
F: drivers/tty/serial/msm_serial.h
F: drivers/tty/serial/msm_serial.c
F: drivers/platform/msm/
F: drivers/*/pm8???-*
F: include/linux/mfd/pm8xxx/
T: git git://codeaurora.org/quic/kernel/davidb/linux-msm.git
S: Maintained
......@@ -2034,9 +2039,8 @@ F: net/ax25/ax25_timer.c
F: net/ax25/sysctl_net_ax25.c
DAVICOM FAST ETHERNET (DMFE) NETWORK DRIVER
M: Tobias Ringstrom <tori@unhappy.mine.nu>
L: netdev@vger.kernel.org
S: Maintained
S: Orphan
F: Documentation/networking/dmfe.txt
F: drivers/net/tulip/dmfe.c
......@@ -2170,6 +2174,8 @@ M: Dan Williams <dan.j.williams@intel.com>
S: Supported
F: drivers/dma/
F: include/linux/dma*
T: git git://git.kernel.org/pub/scm/linux/kernel/git/djbw/async_tx.git
T: git git://git.infradead.org/users/vkoul/slave-dma.git (slave-dma)
DME1737 HARDWARE MONITOR DRIVER
M: Juerg Haefliger <juergh@gmail.com>
......@@ -2245,10 +2251,10 @@ F: drivers/gpu/drm/
F: include/drm/
INTEL DRM DRIVERS (excluding Poulsbo, Moorestown and derivative chipsets)
M: Chris Wilson <chris@chris-wilson.co.uk>
M: Keith Packard <keithp@keithp.com>
L: intel-gfx@lists.freedesktop.org (subscribers-only)
L: dri-devel@lists.freedesktop.org
T: git git://git.kernel.org/pub/scm/linux/kernel/git/ickle/drm-intel.git
T: git git://git.kernel.org/pub/scm/linux/kernel/git/keithp/linux-2.6.git
S: Supported
F: drivers/gpu/drm/i915
F: include/drm/i915*
......@@ -2296,7 +2302,7 @@ F: net/bridge/netfilter/ebt*.c
ECRYPT FILE SYSTEM
M: Tyler Hicks <tyhicks@linux.vnet.ibm.com>
M: Dustin Kirkland <kirkland@canonical.com>
L: ecryptfs-devel@lists.launchpad.net
L: ecryptfs@vger.kernel.org
W: https://launchpad.net/ecryptfs
S: Supported
F: Documentation/filesystems/ecryptfs.txt
......@@ -2576,6 +2582,13 @@ S: Maintained
F: drivers/hwmon/f75375s.c
F: include/linux/f75375s.h
FIREWIRE AUDIO DRIVERS
M: Clemens Ladisch <clemens@ladisch.de>
L: alsa-devel@alsa-project.org (moderated for non-subscribers)
T: git git://git.alsa-project.org/alsa-kernel.git
S: Maintained
F: sound/firewire/
FIREWIRE SUBSYSTEM
M: Stefan Richter <stefanr@s5r6.in-berlin.de>
L: linux1394-devel@lists.sourceforge.net
......@@ -3016,9 +3029,8 @@ S: Maintained
F: drivers/net/wireless/hostap/
HP COMPAQ TC1100 TABLET WMI EXTRAS DRIVER
M: Carlos Corbacho <carlos@strangeworlds.co.uk>
L: platform-driver-x86@vger.kernel.org
S: Odd Fixes
S: Orphan
F: drivers/platform/x86/tc1100-wmi.c
HP100: Driver for HP 10/100 Mbit/s Voice Grade Network Adapter Series
......@@ -3566,9 +3578,16 @@ M: Andrew Morton <akpm@linux-foundation.org>
M: Jan Kara <jack@suse.cz>
L: linux-ext4@vger.kernel.org
S: Maintained
F: fs/jbd*/
F: include/linux/ext*jbd*.h
F: include/linux/jbd*.h
F: fs/jbd/
F: include/linux/ext3_jbd.h
F: include/linux/jbd.h
JOURNALLING LAYER FOR BLOCK DEVICES (JBD2)
M: "Theodore Ts'o" <tytso@mit.edu>
L: linux-ext4@vger.kernel.org
S: Maintained
F: fs/jbd2/
F: include/linux/jbd2.h
JSM Neo PCI based serial card
M: Breno Leitao <leitao@linux.vnet.ibm.com>
......@@ -3591,10 +3610,9 @@ F: Documentation/hwmon/k8temp
F: drivers/hwmon/k8temp.c
KCONFIG
M: Roman Zippel <zippel@linux-m68k.org>
M: Michal Marek <mmarek@suse.cz>
L: linux-kbuild@vger.kernel.org
Q: http://patchwork.kernel.org/project/linux-kbuild/list/
S: Maintained
S: Odd Fixes
F: Documentation/kbuild/kconfig-language.txt
F: scripts/kconfig/
......@@ -3705,7 +3723,7 @@ KEYS/KEYRINGS:
M: David Howells <dhowells@redhat.com>
L: keyrings@linux-nfs.org
S: Maintained
F: Documentation/keys.txt
F: Documentation/security/keys.txt
F: include/linux/key.h
F: include/linux/key-type.h
F: include/keys/
......@@ -3717,7 +3735,7 @@ M: Mimi Zohar <zohar@us.ibm.com>
L: linux-security-module@vger.kernel.org
L: keyrings@linux-nfs.org
S: Supported
F: Documentation/keys-trusted-encrypted.txt
F: Documentation/security/keys-trusted-encrypted.txt
F: include/keys/trusted-type.h
F: security/keys/trusted.c
F: security/keys/trusted.h
......@@ -3728,7 +3746,7 @@ M: David Safford <safford@watson.ibm.com>
L: linux-security-module@vger.kernel.org
L: keyrings@linux-nfs.org
S: Supported
F: Documentation/keys-trusted-encrypted.txt
F: Documentation/security/keys-trusted-encrypted.txt
F: include/keys/encrypted-type.h
F: security/keys/encrypted.c
F: security/keys/encrypted.h
......@@ -3898,7 +3916,6 @@ F: drivers/*/*/*pasemi*
LINUX SECURITY MODULE (LSM) FRAMEWORK
M: Chris Wright <chrisw@sous-sol.org>
L: linux-security-module@vger.kernel.org
T: git git://git.kernel.org/pub/scm/linux/kernel/git/chrisw/lsm-2.6.git
S: Supported
LIS3LV02D ACCELEROMETER DRIVER
......@@ -4134,6 +4151,7 @@ M: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
L: linux-mm@kvack.org
S: Maintained
F: mm/memcontrol.c
F: mm/page_cgroup.c
MEMORY TECHNOLOGY DEVICES (MTD)
M: David Woodhouse <dwmw2@infradead.org>
......@@ -5430,6 +5448,13 @@ L: linux-serial@vger.kernel.org
S: Maintained
F: drivers/tty/serial
SYNOPSYS DESIGNWARE DMAC DRIVER
M: Viresh Kumar <viresh.kumar@st.com>
S: Maintained
F: include/linux/dw_dmac.h
F: drivers/dma/dw_dmac_regs.h
F: drivers/dma/dw_dmac.c
TIMEKEEPING, NTP
M: John Stultz <johnstul@us.ibm.com>
M: Thomas Gleixner <tglx@linutronix.de>
......@@ -5494,7 +5519,7 @@ F: drivers/scsi/sg.c
F: include/scsi/sg.h
SCSI SUBSYSTEM
M: "James E.J. Bottomley" <James.Bottomley@suse.de>
M: "James E.J. Bottomley" <JBottomley@parallels.com>
L: linux-scsi@vger.kernel.org
T: git git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6.git
T: git git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6.git
......@@ -5592,10 +5617,11 @@ M: James Morris <jmorris@namei.org>
M: Eric Paris <eparis@parisplace.org>
L: selinux@tycho.nsa.gov (subscribers-only, general discussion)
W: http://selinuxproject.org
T: git git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/security-testing-2.6.git
T: git git://git.infradead.org/users/eparis/selinux.git
S: Supported
F: include/linux/selinux*
F: security/selinux/
F: scripts/selinux/
APPARMOR SECURITY MODULE
M: John Johansen <john.johansen@canonical.com>
......@@ -5986,7 +6012,7 @@ F: Documentation/filesystems/spufs.txt
F: arch/powerpc/platforms/cell/spufs/
SQUASHFS FILE SYSTEM
M: Phillip Lougher <phillip@lougher.demon.co.uk>
M: Phillip Lougher <phillip@squashfs.org.uk>
L: squashfs-devel@lists.sourceforge.net (subscribers-only)
W: http://squashfs.org.uk
S: Maintained
......@@ -6062,6 +6088,17 @@ F: Documentation/filesystems/sysv-fs.txt
F: fs/sysv/
F: include/linux/sysv_fs.h
TARGET SUBSYSTEM
M: Nicholas A. Bellinger <nab@linux-iscsi.org>
L: linux-scsi@vger.kernel.org
L: http://groups.google.com/group/linux-iscsi-target-dev
W: http://www.linux-iscsi.org
T: git git://git.kernel.org/pub/scm/linux/kernel/git/nab/lio-core-2.6.git master
S: Supported
F: drivers/target/
F: include/target/
F: Documentation/target/
TASKSTATS STATISTICS INTERFACE
M: Balbir Singh <balbir@linux.vnet.ibm.com>
S: Maintained
......@@ -6795,6 +6832,13 @@ L: lm-sensors@lm-sensors.org
S: Maintained
F: drivers/hwmon/vt8231.c
VUB300 USB to SDIO/SD/MMC bridge chip
M: Tony Olech <tony.olech@elandigitalsystems.com>
L: linux-mmc@vger.kernel.org
L: linux-usb@vger.kernel.org
S: Supported
F: drivers/mmc/host/vub300.c
W1 DALLAS'S 1-WIRE BUS
M: Evgeniy Polyakov <johnpol@2ka.mipt.ru>
S: Maintained
......
Makefile
浏览文件 @ 8181d3ef
VERSION = 2
PATCHLEVEL = 6
SUBLEVEL = 39
EXTRAVERSION =
NAME = Flesh-Eating Bats with Fangs
VERSION = 3
PATCHLEVEL = 0
SUBLEVEL = 0
EXTRAVERSION = -rc1
NAME = Sneaky Weasel
# *DOCUMENTATION*
# To see a list of typical targets execute "make help"
......@@ -103,7 +103,7 @@ ifeq ("$(origin O)", "command line")
endif
ifeq ("$(origin W)", "command line")
export KBUILD_ENABLE_EXTRA_GCC_CHECKS := 1
export KBUILD_ENABLE_EXTRA_GCC_CHECKS := $(W)
endif
# That's our default target when none is given on the command line
......@@ -220,6 +220,14 @@ ifeq ($(ARCH),sh64)
SRCARCH := sh
endif
# Additional ARCH settings for tile
ifeq ($(ARCH),tilepro)
SRCARCH := tile
endif
ifeq ($(ARCH),tilegx)
SRCARCH := tile
endif
# Where to locate arch specific headers
hdr-arch := $(SRCARCH)
......@@ -349,7 +357,8 @@ CFLAGS_GCOV = -fprofile-arcs -ftest-coverage
# Use LINUXINCLUDE when you must reference the include/ directory.
# Needed to be compatible with the O= option
LINUXINCLUDE := -I$(srctree)/arch/$(hdr-arch)/include -Iinclude \
LINUXINCLUDE := -I$(srctree)/arch/$(hdr-arch)/include \
-Iarch/$(hdr-arch)/include/generated -Iinclude \
$(if $(KBUILD_SRC), -I$(srctree)/include) \
-include include/generated/autoconf.h
......@@ -382,6 +391,7 @@ export KBUILD_CFLAGS CFLAGS_KERNEL CFLAGS_MODULE CFLAGS_GCOV
export KBUILD_AFLAGS AFLAGS_KERNEL AFLAGS_MODULE
export KBUILD_AFLAGS_MODULE KBUILD_CFLAGS_MODULE KBUILD_LDFLAGS_MODULE
export KBUILD_AFLAGS_KERNEL KBUILD_CFLAGS_KERNEL
export KBUILD_ARFLAGS
# When compiling out-of-tree modules, put MODVERDIR in the module
# tree rather than in the kernel tree. The kernel tree might
......@@ -416,6 +426,12 @@ ifneq ($(KBUILD_SRC),)
$(srctree) $(objtree) $(VERSION) $(PATCHLEVEL)
endif
# Support for using generic headers in asm-generic
PHONY += asm-generic
asm-generic:
$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.asm-generic \
obj=arch/$(SRCARCH)/include/generated/asm
# To make sure we do not include .config for any of the *config targets
# catch them early, and hand them over to scripts/kconfig/Makefile
# It is allowed to specify more targets when calling make, including
......@@ -559,6 +575,10 @@ ifndef CONFIG_CC_STACKPROTECTOR
KBUILD_CFLAGS += $(call cc-option, -fno-stack-protector)
endif
# This warning generated too much noise in a regular build.
# Use make W=1 to enable this warning (see scripts/Makefile.build)
KBUILD_CFLAGS += $(call cc-disable-warning, unused-but-set-variable)
ifdef CONFIG_FRAME_POINTER
KBUILD_CFLAGS += -fno-omit-frame-pointer -fno-optimize-sibling-calls
else
......@@ -604,7 +624,7 @@ CHECKFLAGS += $(NOSTDINC_FLAGS)
KBUILD_CFLAGS += $(call cc-option,-Wdeclaration-after-statement,)
# disable pointer signed / unsigned warnings in gcc 4.0
KBUILD_CFLAGS += $(call cc-option,-Wno-pointer-sign,)
KBUILD_CFLAGS += $(call cc-disable-warning, pointer-sign)
# disable invalid "can't wrap" optimizations for signed / pointers
KBUILD_CFLAGS += $(call cc-option,-fno-strict-overflow)
......@@ -612,6 +632,9 @@ KBUILD_CFLAGS += $(call cc-option,-fno-strict-overflow)
# conserve stack if available
KBUILD_CFLAGS += $(call cc-option,-fconserve-stack)
# use the deterministic mode of AR if available
KBUILD_ARFLAGS := $(call ar-option,D)
# check for 'asm goto'
ifeq ($(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-goto.sh $(CC)), y)
KBUILD_CFLAGS += -DCC_HAVE_ASM_GOTO
......@@ -797,15 +820,17 @@ ifdef CONFIG_KALLSYMS
# o The correct .tmp_kallsyms2.o is linked into the final vmlinux.
# o Verify that the System.map from vmlinux matches the map from
# .tmp_vmlinux2, just in case we did not generate kallsyms correctly.
# o If CONFIG_KALLSYMS_EXTRA_PASS is set, do an extra pass using
# o If 'make KALLSYMS_EXTRA_PASS=1" was used, do an extra pass using
# .tmp_vmlinux3 and .tmp_kallsyms3.o. This is only meant as a
# temporary bypass to allow the kernel to be built while the
# maintainers work out what went wrong with kallsyms.
ifdef CONFIG_KALLSYMS_EXTRA_PASS
last_kallsyms := 3
else
last_kallsyms := 2
ifdef KALLSYMS_EXTRA_PASS
ifneq ($(KALLSYMS_EXTRA_PASS),0)
last_kallsyms := 3
endif
endif
kallsyms.o := .tmp_kallsyms$(last_kallsyms).o
......@@ -816,7 +841,8 @@ define verify_kallsyms
$(cmd_sysmap) .tmp_vmlinux$(last_kallsyms) .tmp_System.map
$(Q)cmp -s System.map .tmp_System.map || \
(echo Inconsistent kallsyms data; \
echo Try setting CONFIG_KALLSYMS_EXTRA_PASS; \
echo This is a bug - please report about it; \
echo Try "make KALLSYMS_EXTRA_PASS=1" as a workaround; \
rm .tmp_kallsyms* ; /bin/false )
endef
......@@ -947,7 +973,7 @@ ifneq ($(KBUILD_SRC),)
endif
# prepare2 creates a makefile if using a separate output directory
prepare2: prepare3 outputmakefile
prepare2: prepare3 outputmakefile asm-generic
prepare1: prepare2 include/linux/version.h include/generated/utsrelease.h \
include/config/auto.conf
......@@ -991,7 +1017,8 @@ include/generated/utsrelease.h: include/config/kernel.release FORCE
PHONY += headerdep
headerdep:
$(Q)find include/ -name '*.h' | xargs --max-args 1 scripts/headerdep.pl
$(Q)find $(srctree)/include/ -name '*.h' | xargs --max-args 1 \
$(srctree)/scripts/headerdep.pl -I$(srctree)/include
# ---------------------------------------------------------------------------
......@@ -1021,7 +1048,7 @@ hdr-inst := -rR -f $(srctree)/scripts/Makefile.headersinst obj
hdr-dst = $(if $(KBUILD_HEADERS), dst=include/asm-$(hdr-arch), dst=include/asm)
PHONY += __headers
__headers: include/linux/version.h scripts_basic FORCE
__headers: include/linux/version.h scripts_basic asm-generic FORCE
$(Q)$(MAKE) $(build)=scripts build_unifdef
PHONY += headers_install_all
......@@ -1136,7 +1163,8 @@ CLEAN_FILES += vmlinux System.map \
.tmp_kallsyms* .tmp_version .tmp_vmlinux* .tmp_System.map
# Directories & files removed with 'make mrproper'
MRPROPER_DIRS += include/config usr/include include/generated
MRPROPER_DIRS += include/config usr/include include/generated \
arch/*/include/generated
MRPROPER_FILES += .config .config.old .version .old_version \
include/linux/version.h \
Module.symvers tags TAGS cscope* GPATH GTAGS GRTAGS GSYMS
......@@ -1267,7 +1295,11 @@ help:
@echo ' make O=dir [targets] Locate all output files in "dir", including .config'
@echo ' make C=1 [targets] Check all c source with $$CHECK (sparse by default)'
@echo ' make C=2 [targets] Force check of all c source with $$CHECK'
@echo ' make W=1 [targets] Enable extra gcc checks'
@echo ' make W=n [targets] Enable extra gcc checks, n=1,2,3 where'
@echo ' 1: warnings which may be relevant and do not occur too often'
@echo ' 2: warnings which occur quite often but may still be relevant'
@echo ' 3: more obscure warnings, can most likely be ignored'
@echo ' Multiple levels can be combined with W=12 or W=123'
@echo ' make RECORDMCOUNT_WARN=1 [targets] Warn about ignored mcount sections'
@echo ''
@echo 'Execute "make" or "make all" to build all targets marked with [*] '
......@@ -1291,6 +1323,7 @@ $(help-board-dirs): help-%:
# Documentation targets
# ---------------------------------------------------------------------------
%docs: scripts_basic FORCE
$(Q)$(MAKE) $(build)=scripts build_docproc
$(Q)$(MAKE) $(build)=Documentation/DocBook $@
else # KBUILD_EXTMOD
......@@ -1375,7 +1408,7 @@ endif # KBUILD_EXTMOD
clean: $(clean-dirs)
$(call cmd,rmdirs)
$(call cmd,rmfiles)
@find $(or $(KBUILD_EXTMOD), .) $(RCS_FIND_IGNORE) \
@find $(if $(KBUILD_EXTMOD), $(KBUILD_EXTMOD), .) $(RCS_FIND_IGNORE) \
\( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \
-o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \
-o -name '*.symtypes' -o -name 'modules.order' \
......@@ -1393,13 +1426,15 @@ tags TAGS cscope gtags: FORCE
# Scripts to check various things for consistency
# ---------------------------------------------------------------------------
PHONY += includecheck versioncheck coccicheck namespacecheck export_report
includecheck:
find * $(RCS_FIND_IGNORE) \
find $(srctree)/* $(RCS_FIND_IGNORE) \
-name '*.[hcS]' -type f -print | sort \
| xargs $(PERL) -w $(srctree)/scripts/checkincludes.pl
versioncheck:
find * $(RCS_FIND_IGNORE) \
find $(srctree)/* $(RCS_FIND_IGNORE) \
-name '*.[hcS]' -type f -print | sort \
| xargs $(PERL) -w $(srctree)/scripts/checkversion.pl
......
arch/Kconfig
浏览文件 @ 8181d3ef
......@@ -175,4 +175,7 @@ config HAVE_ARCH_JUMP_LABEL
config HAVE_ARCH_MUTEX_CPU_RELAX
bool
config HAVE_RCU_TABLE_FREE
bool
source "kernel/gcov/Kconfig"
arch/alpha/Kconfig
浏览文件 @ 8181d3ef
......@@ -12,6 +12,7 @@ config ALPHA
select GENERIC_IRQ_PROBE
select AUTO_IRQ_AFFINITY if SMP
select GENERIC_IRQ_SHOW
select ARCH_WANT_OPTIONAL_GPIOLIB
help
The Alpha is a 64-bit general-purpose processor designed and
marketed by the Digital Equipment Corporation of blessed memory,
......@@ -40,10 +41,6 @@ config ARCH_HAS_ILOG2_U64
bool
default n
config GENERIC_FIND_NEXT_BIT
bool
default y
config GENERIC_CALIBRATE_DELAY
bool
default y
......@@ -51,6 +48,9 @@ config GENERIC_CALIBRATE_DELAY
config GENERIC_CMOS_UPDATE
def_bool y
config GENERIC_GPIO
def_bool y
config ZONE_DMA
bool
default y
......
arch/alpha/include/asm/gpio.h 0 → 100644
浏览文件 @ 8181d3ef
/*
* Generic GPIO API implementation for Alpha.
*
* A stright copy of that for PowerPC which was:
*
* Copyright (c) 2007-2008 MontaVista Software, Inc.
*
* Author: Anton Vorontsov <avorontsov@ru.mvista.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*/
#ifndef _ASM_ALPHA_GPIO_H
#define _ASM_ALPHA_GPIO_H
#include <linux/errno.h>
#include <asm-generic/gpio.h>
#ifdef CONFIG_GPIOLIB
/*
* We don't (yet) implement inlined/rapid versions for on-chip gpios.
* Just call gpiolib.
*/
static inline int gpio_get_value(unsigned int gpio)
{
return __gpio_get_value(gpio);
}
static inline void gpio_set_value(unsigned int gpio, int value)
{
__gpio_set_value(gpio, value);
}
static inline int gpio_cansleep(unsigned int gpio)
{
return __gpio_cansleep(gpio);
}
static inline int gpio_to_irq(unsigned int gpio)
{
return __gpio_to_irq(gpio);
}
static inline int irq_to_gpio(unsigned int irq)
{
return -EINVAL;
}
#endif /* CONFIG_GPIOLIB */
#endif /* _ASM_ALPHA_GPIO_H */
arch/alpha/include/asm/smp.h
浏览文件 @ 8181d3ef
......@@ -39,8 +39,6 @@ struct cpuinfo_alpha {
extern struct cpuinfo_alpha cpu_data[NR_CPUS];
#define PROC_CHANGE_PENALTY 20
#define hard_smp_processor_id() __hard_smp_processor_id()
#define raw_smp_processor_id() (current_thread_info()->cpu)
......
arch/alpha/include/asm/unistd.h
浏览文件 @ 8181d3ef
......@@ -456,10 +456,11 @@
#define __NR_open_by_handle_at 498
#define __NR_clock_adjtime 499
#define __NR_syncfs 500
#define __NR_setns 501
#ifdef __KERNEL__
#define NR_SYSCALLS 501
#define NR_SYSCALLS 502
#define __ARCH_WANT_IPC_PARSE_VERSION
#define __ARCH_WANT_OLD_READDIR
......
arch/alpha/kernel/process.c
浏览文件 @ 8181d3ef
......@@ -121,7 +121,7 @@ common_shutdown_1(void *generic_ptr)
/* Wait for the secondaries to halt. */
set_cpu_present(boot_cpuid, false);
set_cpu_possible(boot_cpuid, false);
while (cpus_weight(cpu_present_map))
while (cpumask_weight(cpu_present_mask))
barrier();
#endif
......
arch/alpha/kernel/setup.c
浏览文件 @ 8181d3ef
......@@ -1257,7 +1257,7 @@ show_cpuinfo(struct seq_file *f, void *slot)
#ifdef CONFIG_SMP
seq_printf(f, "cpus active\t\t: %u\n"
"cpu active mask\t\t: %016lx\n",
num_online_cpus(), cpus_addr(cpu_possible_map)[0]);
num_online_cpus(), cpumask_bits(cpu_possible_mask)[0]);
#endif
show_cache_size (f, "L1 Icache", alpha_l1i_cacheshape);
......
arch/alpha/kernel/smp.c
浏览文件 @ 8181d3ef
......@@ -451,7 +451,7 @@ setup_smp(void)
}
printk(KERN_INFO "SMP: %d CPUs probed -- cpu_present_map = %lx\n",
smp_num_probed, cpu_present_map.bits[0]);
smp_num_probed, cpumask_bits(cpu_present_mask)[0]);
}
/*
......@@ -629,8 +629,9 @@ smp_send_reschedule(int cpu)
void
smp_send_stop(void)
{
cpumask_t to_whom = cpu_possible_map;
cpu_clear(smp_processor_id(), to_whom);
cpumask_t to_whom;
cpumask_copy(&to_whom, cpu_possible_mask);
cpumask_clear_cpu(smp_processor_id(), &to_whom);
#ifdef DEBUG_IPI_MSG
if (hard_smp_processor_id() != boot_cpu_id)
printk(KERN_WARNING "smp_send_stop: Not on boot cpu.\n");
......
arch/alpha/kernel/sys_dp264.c
浏览文件 @ 8181d3ef
......@@ -140,7 +140,7 @@ cpu_set_irq_affinity(unsigned int irq, cpumask_t affinity)
for (cpu = 0; cpu < 4; cpu++) {
unsigned long aff = cpu_irq_affinity[cpu];
if (cpu_isset(cpu, affinity))
if (cpumask_test_cpu(cpu, &affinity))
aff |= 1UL << irq;
else
aff &= ~(1UL << irq);
......
arch/alpha/kernel/sys_titan.c
浏览文件 @ 8181d3ef
......@@ -65,10 +65,11 @@ titan_update_irq_hw(unsigned long mask)
register int bcpu = boot_cpuid;
#ifdef CONFIG_SMP
cpumask_t cpm = cpu_present_map;
cpumask_t cpm;
volatile unsigned long *dim0, *dim1, *dim2, *dim3;
unsigned long mask0, mask1, mask2, mask3, dummy;
cpumask_copy(&cpm, cpu_present_mask);
mask &= ~isa_enable;
mask0 = mask & titan_cpu_irq_affinity[0];
mask1 = mask & titan_cpu_irq_affinity[1];
......@@ -84,10 +85,10 @@ titan_update_irq_hw(unsigned long mask)
dim1 = &cchip->dim1.csr;
dim2 = &cchip->dim2.csr;
dim3 = &cchip->dim3.csr;
if (!cpu_isset(0, cpm)) dim0 = &dummy;
if (!cpu_isset(1, cpm)) dim1 = &dummy;
if (!cpu_isset(2, cpm)) dim2 = &dummy;
if (!cpu_isset(3, cpm)) dim3 = &dummy;
if (!cpumask_test_cpu(0, &cpm)) dim0 = &dummy;
if (!cpumask_test_cpu(1, &cpm)) dim1 = &dummy;
if (!cpumask_test_cpu(2, &cpm)) dim2 = &dummy;
if (!cpumask_test_cpu(3, &cpm)) dim3 = &dummy;
*dim0 = mask0;
*dim1 = mask1;
......@@ -137,7 +138,7 @@ titan_cpu_set_irq_affinity(unsigned int irq, cpumask_t affinity)
int cpu;
for (cpu = 0; cpu < 4; cpu++) {
if (cpu_isset(cpu, affinity))
if (cpumask_test_cpu(cpu, &affinity))
titan_cpu_irq_affinity[cpu] |= 1UL << irq;
else
titan_cpu_irq_affinity[cpu] &= ~(1UL << irq);
......
arch/alpha/kernel/systbls.S
浏览文件 @ 8181d3ef
......@@ -519,6 +519,7 @@ sys_call_table:
.quad sys_open_by_handle_at
.quad sys_clock_adjtime
.quad sys_syncfs /* 500 */
.quad sys_setns
.size sys_call_table, . - sys_call_table
.type sys_call_table, @object
......
arch/alpha/kernel/vmlinux.lds.S
浏览文件 @ 8181d3ef
......@@ -39,7 +39,7 @@ SECTIONS
__init_begin = ALIGN(PAGE_SIZE);
INIT_TEXT_SECTION(PAGE_SIZE)
INIT_DATA_SECTION(16)
PERCPU(L1_CACHE_BYTES, PAGE_SIZE)
PERCPU_SECTION(L1_CACHE_BYTES)
/* Align to THREAD_SIZE rather than PAGE_SIZE here so any padding page
needed for the THREAD_SIZE aligned init_task gets freed after init */
. = ALIGN(THREAD_SIZE);
......
arch/alpha/mm/init.c
浏览文件 @ 8181d3ef
......@@ -32,8 +32,6 @@
#include <asm/console.h>
#include <asm/tlb.h>
DEFINE_PER_CPU(struct mmu_gather, mmu_gathers);
extern void die_if_kernel(char *,struct pt_regs *,long);
static struct pcb_struct original_pcb;
......
arch/alpha/mm/numa.c
浏览文件 @ 8181d3ef
......@@ -313,6 +313,7 @@ void __init paging_init(void)
zones_size[ZONE_DMA] = dma_local_pfn;
zones_size[ZONE_NORMAL] = (end_pfn - start_pfn) - dma_local_pfn;
}
node_set_state(nid, N_NORMAL_MEMORY);
free_area_init_node(nid, zones_size, start_pfn, NULL);
}
......
arch/arm/Kconfig
浏览文件 @ 8181d3ef
......@@ -294,6 +294,8 @@ config ARCH_AT91
bool "Atmel AT91"
select ARCH_REQUIRE_GPIOLIB
select HAVE_CLK
select CLKDEV_LOOKUP
select ARM_PATCH_PHYS_VIRT if MMU
help
This enables support for systems based on the Atmel AT91RM9200,
AT91SAM9 and AT91CAP9 processors.
......@@ -730,16 +732,6 @@ config ARCH_S5P64X0
Samsung S5P64X0 CPU based systems, such as the Samsung SMDK6440,
SMDK6450.
config ARCH_S5P6442
bool "Samsung S5P6442"
select CPU_V6
select GENERIC_GPIO
select HAVE_CLK
select ARCH_USES_GETTIMEOFFSET
select HAVE_S3C2410_WATCHDOG if WATCHDOG
help
Samsung S5P6442 CPU based systems
config ARCH_S5PC100
bool "Samsung S5PC100"
select GENERIC_GPIO
......@@ -991,8 +983,6 @@ endif
source "arch/arm/mach-s5p64x0/Kconfig"
source "arch/arm/mach-s5p6442/Kconfig"
source "arch/arm/mach-s5pc100/Kconfig"
source "arch/arm/mach-s5pv210/Kconfig"
......@@ -1399,7 +1389,6 @@ config NR_CPUS
config HOTPLUG_CPU
bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
depends on SMP && HOTPLUG && EXPERIMENTAL
depends on !ARCH_MSM
help
Say Y here to experiment with turning CPUs off and on. CPUs
can be controlled through /sys/devices/system/cpu.
......@@ -1420,7 +1409,7 @@ source kernel/Kconfig.preempt
config HZ
int
default 200 if ARCH_EBSA110 || ARCH_S3C2410 || ARCH_S5P64X0 || \
ARCH_S5P6442 || ARCH_S5PV210 || ARCH_EXYNOS4
ARCH_S5PV210 || ARCH_EXYNOS4
default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
default AT91_TIMER_HZ if ARCH_AT91
default SHMOBILE_TIMER_HZ if ARCH_SHMOBILE
......@@ -1516,6 +1505,9 @@ config ARCH_SPARSEMEM_DEFAULT
config ARCH_SELECT_MEMORY_MODEL
def_bool ARCH_SPARSEMEM_ENABLE
config HAVE_ARCH_PFN_VALID
def_bool ARCH_HAS_HOLES_MEMORYMODEL || !SPARSEMEM
config HIGHMEM
bool "High Memory Support"
depends on MMU
......@@ -1683,6 +1675,13 @@ endmenu
menu "Boot options"
config USE_OF
bool "Flattened Device Tree support"
select OF
select OF_EARLY_FLATTREE
help
Include support for flattened device tree machine descriptions.
# Compressed boot loader in ROM. Yes, we really want to ask about
# TEXT and BSS so we preserve their values in the config files.
config ZBOOT_ROM_TEXT
......@@ -2021,7 +2020,7 @@ menu "Power management options"
source "kernel/power/Kconfig"
config ARCH_SUSPEND_POSSIBLE
depends on !ARCH_S5P64X0 && !ARCH_S5P6442 && !ARCH_S5PC100
depends on !ARCH_S5P64X0 && !ARCH_S5PC100
depends on CPU_ARM920T || CPU_ARM926T || CPU_SA1100 || \
CPU_V6 || CPU_V6K || CPU_V7 || CPU_XSC3 || CPU_XSCALE
def_bool y
......
arch/arm/Kconfig.debug
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......@@ -63,13 +63,6 @@ config DEBUG_USER
8 - SIGSEGV faults
16 - SIGBUS faults
config DEBUG_STACK_USAGE
bool "Enable stack utilization instrumentation"
depends on DEBUG_KERNEL
help
Enables the display of the minimum amount of free stack which each
task has ever had available in the sysrq-T output.
# These options are only for real kernel hackers who want to get their hands dirty.
config DEBUG_LL
bool "Kernel low-level debugging functions"
......
arch/arm/Makefile
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......@@ -176,7 +176,6 @@ machine-$(CONFIG_ARCH_S3C2410) := s3c2410 s3c2400 s3c2412 s3c2416 s3c2440 s3c24
machine-$(CONFIG_ARCH_S3C24A0) := s3c24a0
machine-$(CONFIG_ARCH_S3C64XX) := s3c64xx
machine-$(CONFIG_ARCH_S5P64X0) := s5p64x0
machine-$(CONFIG_ARCH_S5P6442) := s5p6442
machine-$(CONFIG_ARCH_S5PC100) := s5pc100
machine-$(CONFIG_ARCH_S5PV210) := s5pv210
machine-$(CONFIG_ARCH_EXYNOS4) := exynos4
......
arch/arm/common/Kconfig
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......@@ -7,7 +7,7 @@ config ARM_VIC
config ARM_VIC_NR
int
default 4 if ARCH_S5PV210
default 3 if ARCH_S5P6442 || ARCH_S5PC100
default 3 if ARCH_S5PC100
default 2
depends on ARM_VIC
help
......
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arch/mn10300/Kconfig
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arch/x86/kernel/apic/x2apic_uv_x.c
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arch/x86/kernel/apm_32.c
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arch/x86/kernel/cpu/amd.c
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arch/x86/kernel/cpu/bugs.c
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arch/x86/kernel/cpu/common.c
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arch/x86/kernel/ftrace.c
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arch/x86/kernel/process.c
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arch/x86/kernel/ptrace.c
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arch/x86/kernel/setup.c
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arch/x86/kernel/smpboot.c
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arch/x86/kernel/syscall_table_32.S
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arch/x86/kernel/tboot.c
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arch/x86/kernel/time.c
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arch/x86/kernel/tsc.c
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arch/x86/kernel/vmlinux.lds.S
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arch/x86/kernel/vread_tsc_64.c 0 → 100644
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arch/x86/kernel/vsyscall_64.c
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arch/x86/kvm/mmu.c
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arch/x86/mm/fault.c
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arch/x86/mm/hugetlbpage.c
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arch/x86/mm/init.c
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arch/x86/oprofile/op_model_amd.c
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arch/x86/platform/efi/efi.c
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arch/x86/platform/efi/efi_64.c
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arch/x86/platform/uv/tlb_uv.c
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arch/x86/platform/uv/uv_time.c
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arch/x86/vdso/Makefile
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arch/x86/vdso/vclock_gettime.c
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arch/x86/vdso/vdso.lds.S
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arch/x86/vdso/vextern.h 已删除 100644 → 0
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arch/x86/vdso/vgetcpu.c
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arch/x86/vdso/vma.c
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arch/x86/vdso/vvar.c 已删除 100644 → 0
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arch/x86/xen/mmu.c
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arch/x86/xen/mmu.h
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arch/xtensa/Kconfig
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arch/xtensa/include/asm/page.h
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arch/xtensa/include/asm/unistd.h
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arch/xtensa/kernel/vmlinux.lds.S
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arch/xtensa/mm/mmu.c
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arch/xtensa/mm/pgtable.c 已删除 100644 → 0
浏览文件 @ 54525552
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block/blk-cgroup.c
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block/blk-cgroup.h
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block/blk-core.c
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block/blk-exec.c
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block/blk-flush.c
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block/blk-ioc.c
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block/blk-lib.c
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block/blk-settings.c
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block/blk-sysfs.c
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block/blk-throttle.c
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block/blk.h
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block/cfq-iosched.c
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block/elevator.c
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block/genhd.c
浏览文件 @ 8181d3ef
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drivers/Kconfig
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drivers/Makefile
浏览文件 @ 8181d3ef
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drivers/acpi/Kconfig
浏览文件 @ 8181d3ef
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drivers/acpi/Makefile
浏览文件 @ 8181d3ef
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drivers/acpi/acpica/Makefile
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drivers/acpi/acpica/acconfig.h
浏览文件 @ 8181d3ef
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drivers/acpi/acpica/acevents.h
浏览文件 @ 8181d3ef
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drivers/acpi/acpica/acglobal.h
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drivers/acpi/acpica/amlcode.h
浏览文件 @ 8181d3ef
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drivers/acpi/acpica/dswload.c
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drivers/acpi/acpica/dswload2.c
浏览文件 @ 8181d3ef
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drivers/acpi/acpica/evglock.c 0 → 100644
浏览文件 @ 8181d3ef
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drivers/acpi/acpica/evmisc.c
浏览文件 @ 8181d3ef
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drivers/acpi/acpica/evregion.c
浏览文件 @ 8181d3ef
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drivers/acpi/acpica/evrgnini.c
浏览文件 @ 8181d3ef
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drivers/acpi/acpica/evxfregn.c
浏览文件 @ 8181d3ef
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drivers/acpi/acpica/excreate.c
浏览文件 @ 8181d3ef
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drivers/acpi/acpica/nsrepair.c
浏览文件 @ 8181d3ef
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drivers/acpi/acpica/utdecode.c
浏览文件 @ 8181d3ef
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drivers/acpi/acpica/utmutex.c
浏览文件 @ 8181d3ef
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drivers/acpi/apei/einj.c
浏览文件 @ 8181d3ef
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drivers/acpi/atomicio.c
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drivers/acpi/bus.c
浏览文件 @ 8181d3ef
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drivers/acpi/custom_method.c 0 → 100644
浏览文件 @ 8181d3ef
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drivers/acpi/debugfs.c
浏览文件 @ 8181d3ef
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drivers/acpi/ec.c
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drivers/acpi/internal.h
浏览文件 @ 8181d3ef
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drivers/acpi/osl.c
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drivers/acpi/processor_core.c
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drivers/acpi/processor_idle.c
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drivers/acpi/sysfs.c
浏览文件 @ 8181d3ef
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drivers/amba/bus.c
浏览文件 @ 8181d3ef
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drivers/ata/libata-scsi.c
浏览文件 @ 8181d3ef
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drivers/ata/pata_pcmcia.c
浏览文件 @ 8181d3ef
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drivers/base/node.c
浏览文件 @ 8181d3ef
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drivers/bcma/host_pci.c
浏览文件 @ 8181d3ef
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drivers/block/Kconfig
浏览文件 @ 8181d3ef
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drivers/block/Makefile
浏览文件 @ 8181d3ef
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drivers/block/brd.c
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drivers/block/cciss.c
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drivers/block/cciss.h
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drivers/block/cciss_cmd.h
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drivers/block/cciss_scsi.c
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drivers/block/cciss_scsi.h
浏览文件 @ 8181d3ef
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drivers/block/drbd/drbd_actlog.c
浏览文件 @ 8181d3ef
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drivers/block/drbd/drbd_bitmap.c
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drivers/block/drbd/drbd_int.h
浏览文件 @ 8181d3ef
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drivers/block/drbd/drbd_main.c
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drivers/block/drbd/drbd_nl.c
浏览文件 @ 8181d3ef
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drivers/block/drbd/drbd_receiver.c
浏览文件 @ 8181d3ef
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drivers/block/drbd/drbd_req.c
浏览文件 @ 8181d3ef
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drivers/block/drbd/drbd_req.h
浏览文件 @ 8181d3ef
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drivers/block/drbd/drbd_worker.c
浏览文件 @ 8181d3ef
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drivers/block/floppy.c
浏览文件 @ 8181d3ef
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drivers/block/loop.c
浏览文件 @ 8181d3ef
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drivers/block/paride/pcd.c
浏览文件 @ 8181d3ef
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drivers/block/rbd.c
浏览文件 @ 8181d3ef
此差异已折叠。
drivers/block/xen-blkback/Makefile 0 → 100644
浏览文件 @ 8181d3ef
此差异已折叠。
drivers/block/xen-blkback/blkback.c 0 → 100644
浏览文件 @ 8181d3ef
此差异已折叠。
drivers/block/xen-blkback/common.h 0 → 100644
浏览文件 @ 8181d3ef
此差异已折叠。
drivers/block/xen-blkback/xenbus.c 0 → 100644
浏览文件 @ 8181d3ef
此差异已折叠。
drivers/block/xen-blkfront.c
浏览文件 @ 8181d3ef
此差异已折叠。
drivers/bluetooth/bluecard_cs.c
浏览文件 @ 8181d3ef
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drivers/bluetooth/bt3c_cs.c
浏览文件 @ 8181d3ef
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drivers/bluetooth/btuart_cs.c
浏览文件 @ 8181d3ef
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drivers/bluetooth/dtl1_cs.c
浏览文件 @ 8181d3ef
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drivers/cdrom/viocd.c
浏览文件 @ 8181d3ef
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drivers/char/agp/intel-agp.c
浏览文件 @ 8181d3ef
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drivers/char/agp/intel-agp.h
浏览文件 @ 8181d3ef
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drivers/char/agp/intel-gtt.c
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drivers/char/agp/uninorth-agp.c
浏览文件 @ 8181d3ef
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drivers/char/i8k.c
浏览文件 @ 8181d3ef
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drivers/char/ipmi/ipmi_msghandler.c
浏览文件 @ 8181d3ef
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drivers/char/ipmi/ipmi_si_intf.c
浏览文件 @ 8181d3ef
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drivers/char/mspec.c
浏览文件 @ 8181d3ef
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drivers/char/pcmcia/cm4000_cs.c
浏览文件 @ 8181d3ef
此差异已折叠。
drivers/char/pcmcia/cm4040_cs.c
浏览文件 @ 8181d3ef
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drivers/char/pcmcia/synclink_cs.c
浏览文件 @ 8181d3ef
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drivers/char/ppdev.c
浏览文件 @ 8181d3ef
此差异已折叠。
drivers/cpufreq/Makefile
浏览文件 @ 8181d3ef
此差异已折叠。
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