libata currently imposes a UDMA5 max transfer rate and 200 sector max
transfer size for SATA devices that sit behind a pata-sata bridge. Lots
of devices have known good bridges that don't need this limit applied.
The MTRON SSD disks are such devices. Transfer rates are increased by
20-30% with the restriction removed.

So add a "blacklist" entry for the MTRON devices, with a flag indicating
that the bridge is known good.
Signed-off-by: NJeff Garzik <jgarzik@redhat.com>

5287 used to be treated as vt6420 but it didn't work.  It's new family
of controllers called vt8251 which hosts four SATA ports as M/S of the
two ATA ports.  This configuration is rather peculiar in that although
the M/S devices are on the same port, each have its own SCR (or
equivalent link status/control) registers which screws up the
port-link-device hierarchy assumed by libata.  Another controller
which falls into this category is ata_piix w/ SIDPR access.

libata now has facility to deal with this class of controllers named
slave_link.  A low level driver for such controllers can just call
ata_slave_link_init() on the respective ports and libata will handle
all the difficult parts like following up with single SRST after
hardresetting both ports.

This patch creates new controller class vt8251, implements slave_link
aware init sequence and config space based SCR access for it and moves
5287 to the new class.

This patch is based on Joseph Chan's larger patch which was created
before slave_link was implemented in libata.

  http://thread.gmane.org/gmane.linux.kernel.commits.mm/40640Signed-off-by: NTejun Heo <tj@kernel.org>
Cc: Joseph Chan <JosephChan@via.com.tw>
Signed-off-by: NJeff Garzik <jgarzik@redhat.com>

In ata_tf_to_lba48(), when evaluating

	(tf->hob_lbal & 0xff) << 24

the expression is promoted to signed int (since int can hold all values
of u8).  However, if hob_lbal is 128 or more, then it is treated as a
negative signed value and sign-extended when promoted to u64 to | into
sectors, which leads to the MSB 32 bits of section getting set
incorrectly.

For example, Phillip O'Donnell <phillip.odonnell@gmail.com> reported
that a 1.5GB drive caused:

    ata3.00: HPA detected: current 2930277168, native 18446744072344861488

where 2930277168 == 0xAEA87B30 and 18446744072344861488 == 0xffffffffaea87b30
which shows the problem when hob_lbal is 0xae.

Fix this by adding a cast to u64, just as is used by for hob_lbah and
hob_lbam in the function.
Reported-by: NPhillip O'Donnell <phillip.odonnell@gmail.com>
Signed-off-by: NRoland Dreier <rolandd@cisco.com>
Signed-off-by: NJeff Garzik <jgarzik@redhat.com>

Remove excess kernel-doc function parameter notation from drivers/ata/:

Warning(drivers/ata/libata-core.c:1622): Excess function parameter or struct member 'fn' description in 'ata_pio_queue_task'
Warning(drivers/ata/libata-core.c:4655): Excess function parameter or struct member 'err_mask' description in 'ata_qc_complete'
Warning(drivers/ata/ata_piix.c:751): Excess function parameter or struct member 'udma' description in 'do_pata_set_dmamode'
Signed-off-by: NRandy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: NJeff Garzik <jgarzik@redhat.com>

* git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild-fixes:
  Fix incompatibility with versions of Perl less than 5.6.0
  kbuild: do not include arch/<ARCH>/include/asm in find-sources twice.
  kbuild: tag with git revision when git describe is missing
  kbuild: prevent modpost from looking for a .cmd file for a static library linked into a module
  kbuild: fix KBUILD_EXTRA_SYMBOLS
  adjust init section definitions
  scripts/checksyscalls.sh: fix for non-gnu sed
  scripts/package: don't break if %{_smp_mflags} isn't set
  kbuild: setlocalversion: dont include svn change count
  kbuild: improve check-symlink
  kbuild: mkspec - fix build rpm

* git://git.kernel.org/pub/scm/linux/kernel/git/wim/linux-2.6-watchdog:
  [PATCH] Switch all my contributions stuff to a single common address
  [WATCHDOG] pci: use pci_ioremap_bar() in drivers/watchdog

* 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus:
  CHAR: Delete old and now unused M48T35 RTC driver for SGI IP27.
  CHAR: Delete old and now unused DS1286 driver.
  MIPS: Sort out CPU type to name translation.
  MIPS: Use the new byteorder headers
  MIPS: Probe for watch registers on cores of all vendors, not just MTI.
  MIPS: Switch FPU emulator trap to BREAK instruction.
  MIPS: SMP: Do not initialize __cpu_number_map/__cpu_logical_map for CPU 0.
  MIPS: Consider value of c0_ebase when computing value of exception base.
  MIPS: Clean up MIPSxx-optimized bitop functions
  MIPS: New feature test macro cpu_has_mips_r
  MIPS: RBTX4927: Add GPIO-LED support
  MIPS: TXx9: Fix RBTX4939 ethernet address initialization

* git://git.kernel.org/pub/scm/linux/kernel/git/brodo/pcmcia-2.6:
  fdomain_cs: Sort out modules with duplicate description
  pcmcia: Whine harder about use of EXCLUSIVE
  pcmcia: IRQ_TYPE_EXCLUSIVE is long obsoleted

* 'bugfixes' of git://git.linux-nfs.org/projects/trondmy/nfs-2.6:
  SUNRPC: Fix potential race in put_rpccred()
  SUNRPC: Fix rpcauth_prune_expired
  NFS: Convert nfs_attr_generation_counter into an atomic_long
  SUNRPC: Respond promptly to server TCP resets

Merge branch 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip

* 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  x86, gart: fix gart detection for Fam11h CPUs
  x86: 64 bit print out absent pages num too
  x86, kdump: fix invalid access on i386 sparsemem
  x86: fix APIC_DEBUG with inquire_remote_apic
  x86: AMD microcode patch loader author update
  x86: microcode patch loader author update
  mailmap: add Peter Oruba
  x86, bts: improve help text for BTS config
  doc/x86: fix doc subdirs

* git://git.kernel.org/pub/scm/linux/kernel/git/agk/linux-2.6-dm:
  dm snapshot: wait for chunks in destructor
  dm snapshot: fix register_snapshot deadlock
  dm raid1: fix do_failures

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6:
  x86/PCI: build failure at x86/kernel/pci-dma.c with !CONFIG_PCI

When we close we must clear the extra reference we got when we read
port->tty. Setting the port tty NULL will clear the kref held by the driver
but not the one we obtained ourselves while doing the lookup.
Signed-off-by: NAlan Cox <alan@redhat.com>
Tested-by: NHelge Hafting <helge.hafting@aitel.hist.no>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

* 'i2c-for-linus' of git://jdelvare.pck.nerim.net/jdelvare-2.6:
  i2c-s3c2410: Correct use of ! and &
  i2c: The i2c mailing list is moving
  scx200_i2c: Add missing class parameter

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid:
  HID: add quirk entry for no-name keyboard (0x13ba/0x0017)
  HID: fix hid_device_id for cross compiling
  HID: sync on deleted io_retry timer in usbhid driver
  HID: fix oops during suspend of unbound HID devices

* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6:
  Driver core: fix 'dynamic_debug' cmd line parameter
  HOWTO: Sync patch for jp_JP/HOWTO
  Update stable tree documentation
  sysfs: Fix return values for sysdev_store_{ulong,int}
  driver core: drivers/base/sys.c: update comments
  Document kernel taint flags properly

* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6:
  USB: prevent autosuspend during hub initialization
  USB: Unusual dev for the "Kyocera / Contax SL300R T*" digital camera.
  USB: usbtmc: Use explicit unsigned type for input buffer instead of char*
  USB: fix crash when URBs are unlinked after the device is gone

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/lrg/voltage-2.6:
  regulator: da903x regulator bug fix
  regulator: Build on non-ARM platforms

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6:
  amd8111e: Fix rx return code
  pktgen: fix multiple queue warning
  mac80211.h: fix kernel-doc excesses
  p54: fix build warnings
  ath5k: Reset key cache on interface up, thus fixing resume
  mac80211: correct warnings in minstrel rate control algorithm
  RFKILL: fix input layer initialisation
  p54: fix misbehavings when firmware can't be found
  dm9601: runtime mac address change support
  via-velocity: use driver string instead of dev->name before register_netdev()
  drivers/net/wan/syncppp: Fix unused-var warnings
  mlx4: Setting the correct offset for default mac address
  mlx4_en: remove duplicated #include
  ibm_newemac: Fix typo in flow control config option
  ehea: Detect 16GB hugepages for firmware restriction
  dmfe: check pci_alloc_consistent errors
  qeth: avoid skb_under_panic for malformatted inbound data
  qeth: remove unnecessary support ckeck in sysfs route6
  qeth: fix offset error in non prealloc header path
  qeth: remove non-recover-thread checkings

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6:
  ALSA: ASoC: Fix WM9713 ALC Decay Time name
  ALSA: ASoC: Fix some minor errors in mpc5200 psc i2s driver
  ALSA: ASoC: Fix mono controls after conversion to support full int masks
  ALSA: sound/ice1712: indentation & braces disagree - add braces
  ALSA: usb - Add quirk for Edirol UA-25EX advanced modes
  sound: struct device - replace bus_id with dev_name(), dev_set_name()
  ALSA: hda - Add reboot notifier
  ALSA: Warn when control names are truncated
  ALSA: intel8x0 - add Dell Optiplex GX620 (AD1981B) to AC97 clock whitelist
  ALSA: hda - Fix SPDIF mute on IDT/STAC codecs
  ALSA: hda: Add HDA vendor ID for Wolfson Microelectronics
  ALSA: hda - Add another HP model for AD1884A

Merge branch 'tracing-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip

* 'tracing-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  ftrace: fix trace_nop config select
  ftrace: perform an initialization for ftrace to enable it

Fix compile error below:

     LD      drivers/spi/built-in.o
     CC [M]  drivers/spi/spi_gpio.o
   In file included from drivers/spi/spi_gpio.c:26:
   include/linux/spi/spi_bitbang.h:23: error: field `work' has incomplete type
   make[2]: *** [drivers/spi/spi_gpio.o] Error 1
   make[1]: *** [drivers/spi] Error 2
   make: *** [drivers] Error 2
Signed-off-by: NFernando Luis Vazquez Cao <fernando@oss.ntt.co.jp>
Cc: David Brownell <david-b@pacbell.net>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Junjiro R.  Okajima reported a problem where knfsd crashes if you are
using it to export shmemfs objects and run strict overcommit.  In this
situation the current->mm based modifier to the overcommit goes through a
NULL pointer.

We could simply check for NULL and skip the modifier but we've caught
other real bugs in the past from mm being NULL here - cases where we did
need a valid mm set up (eg the exec bug about a year ago).

To preserve the checks and get the logic we want shuffle the checking
around and add a new helper to the vm_ security wrappers

Also fix a current->mm reference in nommu that should use the passed mm

[akpm@linux-foundation.org: coding-style fixes]
[akpm@linux-foundation.org: fix build]
Reported-by: NJunjiro R. Okajima <hooanon05@yahoo.co.jp>
Acked-by: NJames Morris <jmorris@namei.org>
Signed-off-by: NAlan Cox <alan@redhat.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

The ipmi_devintf module contains the userspace interface for IPMI devices,
yet will not be loaded automatically with a system interface handler
driver.

Add a MODULE_ALIAS for the "platform:ipmi_si" MODALIAS exported by the
ipmi_si driver, so that userspace knows of the recommendation.
Signed-off-by: NScott James Remnant <scott@ubuntu.com>
Cc: Tim Gardner <tcanonical@tpi.com>
Cc: Corey Minyard <minyard@acm.org>
Cc: <stable@kernel.org>		[2.6.27.x, maybe earlier?]
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Fix deadlock in fb_compat_ioctl.  fb_compat_ioctl acquires a mutex and
calls fb_ioctl that tries to acquire that mutex too.  A regression added
during BKL removal.
Signed-off-by: NMikulas Patocka <mpatocka@redhat.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

tAdd adds device_init_wakeup() ivokation to probe function of
s3c2410_rtc_driver.  Without of this wakealarm sysfs attribute does not
initialise.
Signed-off-by: NYauhen Kharuzhy <jekhor@gmail.com>
Acked-by: NBen Dooks <ben-linux@fluff.org>
Acked-by: NAlessandro Zummo <a.zummo@towertech.it>
Cc: David Brownell <david-b@pacbell.net>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Put the kernel-doc for might_sleep() _immediately_ before the macro
(no intervening lines).  Otherwise kernel-doc complains like so:

Warning(linux-2.6.27-rc3-git2//include/linux/kernel.h:129): No description found for parameter 'file'
Warning(linux-2.6.27-rc3-git2//include/linux/kernel.h:129): No description found for parameter 'line'

because kernel-doc is looking at the wrong function prototype (i.e.,
__might_sleep).  [Yes, I have a todo note to myself to check/warn for that
inconsistency in scripts/kernel-doc.]
Signed-off-by: NRandy Dunlap <randy.dunlap@oracle.com>
Cc: <Uwe.Kleine-Koenig@digi.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Acked-by: NRandy Dunlap <rdunlap@xenotime.net>
Signed-off-by: NAlan Cox <alan@redhat.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

When ds3234 is built-in, the final links fails with the following vague error
message:

`.exit.text' referenced in section `.data' of drivers/built-in.o: defined in discarded section `.exit.text' of drivers/built-in.o

ds3234_remove() cannot be marked __exit, as it's accessed via __devexit_p().
In addition, mark ds3234_probe() __devinit while we're at it.
Signed-off-by: NGeert Uytterhoeven <geert@linux-m68k.org>
Acked-by: NAlessandro Zummo <a.zummo@towertech.it>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Cc: Subrata Modak <subrata@linux.vnet.ibm.com>
Signed-off-by: NMike Frysinger <vapier@gentoo.org>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

For the time being build for ia64-sn2 alone when CONFIG_IA64_GENERIC is
specified.

This eliminates a dependency of the XP/XPC drivers on having the GRU
driver insmod'd in order to insmod them, when running on an ia64-sn2
system.

On such a system the GRU driver serves no useful purpose.
Signed-off-by: NDean Nelson <dcn@sgi.com>
Cc: "Luck, Tony" <tony.luck@intel.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Currently "kill <sig> -1" kills processes in all namespaces and breaks the
isolation of namespaces.  Earlier attempt to fix this was discussed at:

	http://lkml.org/lkml/2008/7/23/148

As suggested by Oleg Nesterov in that thread, use "task_pid_vnr() > 1"
check since task_pid_vnr() returns 0 if process is outside the caller's
namespace.
Signed-off-by: NSukadev Bhattiprolu <sukadev@linux.vnet.ibm.com>
Acked-by: NEric W. Biederman <ebiederm@xmission.com>
Tested-by: NDaniel Hokka Zakrisson <daniel@hozac.com>
Signed-off-by: NOleg Nesterov <oleg@redhat.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Delete excess kernel-doc notation in fs/ subdirectory:

Warning(linux-2.6.27-git10//fs/jbd/transaction.c:886): Excess function parameter or struct member 'credits' description in 'journal_get_undo_access'
Signed-off-by: NRandy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Delete excess kernel-doc notation in mm/ subdirectory.
Actually this is a kernel-doc notation fix.

Warning(/var/linsrc/linux-2.6.27-git10//mm/vmalloc.c:902): Excess function parameter or struct member 'returns' description in 'vm_map_ram'
Signed-off-by: NRandy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Fixup i2o kernel-doc warnings:

Warning(linux-next-20081022//drivers/message/i2o/i2o_block.c:579): No description found for parameter 'bdev'
Warning(linux-next-20081022//drivers/message/i2o/i2o_block.c:579): No description found for parameter 'mode'
Warning(linux-next-20081022//drivers/message/i2o/i2o_block.c:608): No description found for parameter 'disk'
Warning(linux-next-20081022//drivers/message/i2o/i2o_block.c:608): No description found for parameter 'mode'
Warning(linux-next-20081022//drivers/message/i2o/i2o_block.c:657): No description found for parameter 'bdev'
Warning(linux-next-20081022//drivers/message/i2o/i2o_block.c:657): No description found for parameter 'mode'
Signed-off-by: NRandy Dunlap <randy.dunlap@oracle.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

When ecryptfs allocates space to write crypto headers into, before copying
it out to file headers or to xattrs, it looks at the value of
crypt_stat->num_header_bytes_at_front to determine how much space it
needs.  This is also used as the file offset to the actual encrypted data,
so for xattr-stored crypto info, the value was zero.

So, we kzalloc'd 0 bytes, and then ran off to write to that memory.
(Which returned as ZERO_SIZE_PTR, so we explode quickly).

The right answer is to always allocate a page to write into; the current
code won't ever write more than that (this is enforced by the
(PAGE_CACHE_SIZE - offset) length in the call to
ecryptfs_generate_key_packet_set).  To be explicit about this, we now send
in a "max" parameter, rather than magically using PAGE_CACHE_SIZE there.

Also, since the pointer we pass down the callchain eventually gets the
virt_to_page() treatment, we should be using a alloc_page variant, not
kzalloc (see also 7fcba054)
Signed-off-by: NEric Sandeen <sandeen@redhat.com>
Acked-by: NMichael Halcrow <mhalcrow@us.ibm.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

profile_init() calls in to alloc_bootmem() on early initialization.  While
alloc_bootmem() is __init, the reference itself is safe in that it is
tucked below a !slab_is_available() check.  So, flag profile_init() as
__ref.
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
Cc: Dave Hansen <dave@linux.vnet.ibm.com>
Cc: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

page_cgroup is now allocated at boot and memmap doesn't includes pointer
for page_cgroup.  Fix the menu help text.
Reviewed-by: NBalbir Singh <balbir@linux.vnet.ibm.com>
Signed-off-by: NKAMEZAWA hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

drivers/misc/hdpuftrs/hdpu_nexus.c:118: error: expected identifier or '(' before 'return'
drivers/misc/hdpuftrs/hdpu_nexus.c:119: error: expected identifier or '(' before '}' token
Signed-off-by: NMariusz Kozlowski <m.kozlowski@tuxland.pl>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

init/do_mounts_md.c:285: error: implicit declaration of function 'msleep'
Signed-off-by: NAlexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>