提交 · 5296c7bec8c85aa0a6964eca9ff4a1a8847fba8a · openeuler / Kernel

08 12月, 2006 40 次提交

M
[PATCH] fs: reiserfs add missing brackets · 5296c7be
由 Mariusz Kozlowski 提交于 12月 06, 2006
```
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
```
5296c7be

[PATCH] fs: ufs add missing bracket · 71a3d1b4

由 Mariusz Kozlowski 提交于 12月 06, 2006

Signed-off-by: NMariusz Kozlowski <m.kozlowski@tuxland.pl>
Cc: Evgeniy Dushistov <dushistov@mail.ru>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

71a3d1b4

[PATCH] Trivial cleanup in the PCI IDs for the CS5535 · 65867beb

由 Jordan Crouse 提交于 12月 06, 2006

Rename a poorly worded PCI ID for the Geode GX and CS5535 companion chips.
The graphics processor and host bridge actually live in the northbridge on
the integrated processor, not in the companion chip.
Signed-off-by: NJordan Crouse <jordan.crouse@amd.com>
Acked-by: NAlan Cox <alan@redhat.com>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

65867beb

[PATCH] arch/i386/kernel/reboot.c should #include <linux/reboot.h> · cd6ed525

由 Adrian Bunk 提交于 12月 06, 2006

Every file should #include the headers containing the prototypes for
its global functions.
Signed-off-by: NAdrian Bunk <bunk@stusta.de>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

cd6ed525

[PATCH] remove drivers/char/riscom8.c:baud_table[] · d0ce7d03

由 Adrian Bunk 提交于 12月 06, 2006

Commit c7bce309 removed all usages of
baud_table[] but not the array itself.

Spotted by the GNU C compiler.
Signed-off-by: NAdrian Bunk <bunk@stusta.de>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

d0ce7d03

[PATCH] proper prototype for remove_inode_dquot_ref() · 0da1480e

由 Adrian Bunk 提交于 12月 06, 2006

Add a proper prototype for remove_inode_dquot_ref() in
include/linux/quotaops.h
Signed-off-by: NAdrian Bunk <bunk@stusta.de>
Acked-by: NJan Kara <jack@suse.cz>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

0da1480e

[PATCH] fs/sysv/: doc cleanup · 3982cd99

由 Adrian Bunk 提交于 12月 06, 2006

Remove two different changelog files from fs/sysv/ and merges the INTRO
file into Documentation/filesystems/sysv-fs.txt
Signed-off-by: NAdrian Bunk <bunk@stusta.de>
Cc: Christoph Hellwig <hch@lst.de>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

3982cd99

[PATCH] gcc-4.1.0 is bust · f1a60dbf

由 Andrew Morton 提交于 12月 06, 2006

Keith says

Compiling 2.6.19-rc6 with gcc version 4.1.0 (SUSE Linux), wait_hpet_tick is
optimized away to a never ending loop and the kernel hangs on boot in timer
setup.

0000001a <wait_hpet_tick>:
  1a:   55                      push   %ebp
  1b:   89 e5                   mov    %esp,%ebp
  1d:   eb fe                   jmp    1d <wait_hpet_tick+0x3>

This is not a problem with gcc 3.3.5.  Adding barrier() calls to
wait_hpet_tick does not help, making the variables volatile does.

And the consensus is that gcc-4.1.0 is busted.  Suse went and shipped
gcc-4.1.0 so we cannot ban it.  Add a warning.

Cc: Keith Owens <kaos@ocs.com.au>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

f1a60dbf

[PATCH] amba-pl010: clear error flags on rx error · a4ed06ad

由 Lennert Buytenhek 提交于 12月 06, 2006

The pl010 primecell documentation specifies that an error indicated via RSR
should be cleared by a write to ECR. We didn't do this, which was causing
errors to be re-reported on every call to pl010_rx_chars().

Doing a write to ECR once we detect an error appears to prevent the ep93xx
console UART driver from going into a mode where it reports "ttyAM0: X
input overrun(s)" every couple of keystrokes.
Signed-off-by: NLennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

a4ed06ad

[PATCH] winbond IDE depends on IDEDMA · 9468f687

由 Olaf Hering 提交于 12月 06, 2006

winbond ide depends on idedma.
Move the option into the IDEDMA section.

  drivers/built-in.o: In function `.sl82c105_ide_dma_timeout':
  sl82c105.c:(.text+0x624d0): undefined reference to `.__ide_dma_timeout'
  drivers/built-in.o: In function `.sl82c105_ide_dma_off_quietly':
  sl82c105.c:(.text+0x6274c): undefined reference to `.__ide_dma_off_quietly'
  drivers/built-in.o: In function `.sl82c105_ide_dma_on':
  sl82c105.c:(.text+0x6284c): undefined reference to `.__ide_dma_on'
  drivers/built-in.o: In function `.sl82c105_check_drive':
  sl82c105.c:(.text+0x628ec): undefined reference to `.__ide_dma_bad_drive'
  sl82c105.c:(.text+0x62934): undefined reference to `.__ide_dma_good_drive'
  drivers/built-in.o: In function `.sl82c105_ide_dma_start':
  sl82c105.c:(.text+0x62c24): undefined reference to `.ide_dma_start'
  make[1]: *** [.tmp_vmlinux1] Error 1
Signed-off-by: NOlaf Hering <olaf@aepfle.de>
Acked-by: N"Bartlomiej Zolnierkiewicz" <bzolnier@gmail.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

9468f687

[PATCH] Save some bytes in struct inode · 12d40e43

由 Arnaldo Carvalho de Melo 提交于 12月 06, 2006

[acme@newtoy net-2.6.20]$ pahole --cacheline 64 fs/inode.o inode
/* /pub/scm/linux/kernel/git/acme/net-2.6.20/include/linux/dcache.h:86 */
struct inode {
        struct hlist_node          i_hash;               /*     0     8 */
        struct list_head           i_list;               /*     8     8 */
        struct list_head           i_sb_list;            /*    16     8 */
        struct list_head           i_dentry;             /*    24     8 */
        long unsigned int          i_ino;                /*    32     4 */
        atomic_t                   i_count;              /*    36     4 */
        umode_t                    i_mode;               /*    40     2 */

        /* XXX 2 bytes hole, try to pack */

        unsigned int               i_nlink;              /*    44     4 */
        uid_t                      i_uid;                /*    48     4 */
        gid_t                      i_gid;                /*    52     4 */
        dev_t                      i_rdev;               /*    56     4 */
        loff_t                     i_size;               /*    60     8 */
        struct timespec            i_atime;              /*    68     8 */
        struct timespec            i_mtime;              /*    76     8 */
        struct timespec            i_ctime;              /*    84     8 */
        unsigned int               i_blkbits;            /*    92     4 */
        long unsigned int          i_version;            /*    96     4 */
        blkcnt_t                   i_blocks;             /*   100     4 */
        short unsigned int         i_bytes;              /*   104     2 */

        /* XXX 2 bytes hole, try to pack */

        spinlock_t                 i_lock;               /*   108    40 */
        struct mutex               i_mutex;              /*   148    76 */
        struct rw_semaphore        i_alloc_sem;          /*   224    64 */
        struct inode_operations *  i_op;                 /*   288     4 */
        const struct file_operations  * i_fop;           /*   292     4 */
        struct super_block *       i_sb;                 /*   296     4 */
        struct file_lock *         i_flock;              /*   300     4 */
        struct address_space *     i_mapping;            /*   304     4 */
        struct address_space       i_data;               /*   308   188 */
        struct list_head           i_devices;            /*   496     8 */
        union                      ;                     /*   504     4 */
        int                        i_cindex;             /*   508     4 */
        __u32                      i_generation;         /*   512     4 */
        /* ---------- cacheline 8 boundary ---------- */
        long unsigned int          i_dnotify_mask;       /*   516     4 */
        struct dnotify_struct *    i_dnotify;            /*   520     4 */
        struct list_head           inotify_watches;      /*   524     8 */
        struct mutex               inotify_mutex;        /*   532    76 */
        long unsigned int          i_state;              /*   608     4 */
        long unsigned int          dirtied_when;         /*   612     4 */
        unsigned int               i_flags;              /*   616     4 */
        atomic_t                   i_writecount;         /*   620     4 */
        void *                     i_security;           /*   624     4 */
        void *                     i_private;            /*   628     4 */
}; /* size: 632, sum members: 628, holes: 2, sum holes: 4 */

[acme@newtoy net-2.6.20]$

So just moving i_mode to after i_bytes we save 4 bytes by nuking both holes:

[acme@newtoy net-2.6.20]$ codiff -V /tmp/inode.o.before fs/inode.o
/pub/scm/linux/kernel/git/acme/net-2.6.20/fs/inode.c:
  struct inode |   -4
    i_mode;
     from: umode_t               /*    40(0)     2(0) */
     to:   umode_t               /*   102(0)     2(0) */
 1 struct changed
[acme@newtoy net-2.6.20]$

I've prunned all the other offset changes, only this one is of interest here.

So now we have:

[acme@newtoy net-2.6.20]$ pahole --cacheline 64 ../OUTPUT/qemu/net-2.6.20/fs/inode.o inode
/* /pub/scm/linux/kernel/git/acme/net-2.6.20/include/linux/dcache.h:86 */
struct inode {
        struct hlist_node          i_hash;               /*     0     8 */
        struct list_head           i_list;               /*     8     8 */
        struct list_head           i_sb_list;            /*    16     8 */
        struct list_head           i_dentry;             /*    24     8 */
        long unsigned int          i_ino;                /*    32     4 */
        atomic_t                   i_count;              /*    36     4 */
        unsigned int               i_nlink;              /*    40     4 */
        uid_t                      i_uid;                /*    44     4 */
        gid_t                      i_gid;                /*    48     4 */
        dev_t                      i_rdev;               /*    52     4 */
        loff_t                     i_size;               /*    56     8 */
        /* ---------- cacheline 1 boundary ---------- */
        struct timespec            i_atime;              /*    64     8 */
        struct timespec            i_mtime;              /*    72     8 */
        struct timespec            i_ctime;              /*    80     8 */
        unsigned int               i_blkbits;            /*    88     4 */
        long unsigned int          i_version;            /*    92     4 */
        blkcnt_t                   i_blocks;             /*    96     4 */
        short unsigned int         i_bytes;              /*   100     2 */
        umode_t                    i_mode;               /*   102     2 */
        spinlock_t                 i_lock;               /*   104    40 */
        struct mutex               i_mutex;              /*   144    76 */
        struct rw_semaphore        i_alloc_sem;          /*   220    64 */
        struct inode_operations *  i_op;                 /*   284     4 */
        const struct file_operations  * i_fop;           /*   288     4 */
        struct super_block *       i_sb;                 /*   292     4 */
        struct file_lock *         i_flock;              /*   296     4 */
        struct address_space *     i_mapping;            /*   300     4 */
        struct address_space       i_data;               /*   304   188 */
        struct list_head           i_devices;            /*   492     8 */
        union                      ;                     /*   500     4 */
        int                        i_cindex;             /*   504     4 */
        __u32                      i_generation;         /*   508     4 */
        /* ---------- cacheline 8 boundary ---------- */
        long unsigned int          i_dnotify_mask;       /*   512     4 */
        struct dnotify_struct *    i_dnotify;            /*   516     4 */
        struct list_head           inotify_watches;      /*   520     8 */
        struct mutex               inotify_mutex;        /*   528    76 */
        long unsigned int          i_state;              /*   604     4 */
        long unsigned int          dirtied_when;         /*   608     4 */
        unsigned int               i_flags;              /*   612     4 */
        atomic_t                   i_writecount;         /*   616     4 */
        void *                     i_security;           /*   620     4 */
        void *                     i_private;            /*   624     4 */
}; /* size: 628 */

[acme@newtoy net-2.6.20]$
Signed-off-by: NArnaldo Carvalho de Melo <acme@mandriva.com>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

12d40e43

[PATCH] char: ip2 remove broken macro · 652d3a3e

由 Mariusz Kozlowski 提交于 12月 06, 2006

This macro is broken and unused so why not remove it.
Signed-off-by: NMariusz Kozlowski <m.kozlowski@tuxland.pl>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

652d3a3e

[PATCH] rtc: ds1743 support · f9231a0c

由 Torsten Ertbjerg Rasmussen 提交于 12月 06, 2006

The real time clocks ds1742 and ds1743 differs only in the size of the
nvram.  This patch changes the existing ds1742 driver to support also
ds1743.  The main change is that the nvram size is determined from the
resource attached to the device.

The patch have benefitted from suggestions from Atsushi Nemeto, who is the
author of the ds1742 driver.
Signed-off-by: NTorsten Rasmussen Rasmussen <tr@newtec.dk>
Acked-by: NAlessandro Zummo <a.zummo@towertech.it>
Acked-by: NAtsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

f9231a0c

[PATCH] softirq: remove BUG_ONs which can incorrectly trigger · 3908fd2e

由 Zachary Amsden 提交于 12月 06, 2006

It is possible to have tasklets get scheduled before softirqd has had a chance
to spawn on all CPUs.  This is totally harmless; after success during action
CPU_UP_PREPARE, action CPU_ONLINE will be called, which immediately wakes
softirqd on the appropriate CPU to process the already pending tasklets.  So
there is no danger of having a missed wakeup for any tasklets that were
already pending.

In particular, i386 is affected by this during startup, and is visible when
using a very large initrd; during the time it takes for the initrd to be
decompressed, a timer IRQ can come in and schedule RCU callbacks.  It is also
possible that resending of a hardware IRQ via a softirq triggers the same bug.

Because of different timing conditions, this shows up in all emulators and
virtual machines tested, including Xen, VMware, Virtual PC, and Qemu.  It is
also possible to trigger on native hardware with a large enough initrd,
although I don't have a reliable case demonstrating that.
Signed-off-by: NZachary Amsden <zach@vmware.com>
Cc: <caglar@pardus.org.tr>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: <stable@kernel.org>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

3908fd2e

[PATCH] autofs: fix error code path in autofs_fill_sb() · c949d4eb

由 Jiri Kosina 提交于 12月 06, 2006

When kernel is compiled with old version of autofs (CONFIG_AUTOFS_FS), and
new (observed at least with 5.x.x) automount deamon is started, kernel
correctly reports incompatible version of kernel and userland daemon, but
then screws things up instead of correct handling of the error:

 autofs: kernel does not match daemon version
 =====================================
 [ BUG: bad unlock balance detected! ]
 -------------------------------------
 automount/4199 is trying to release lock (&type->s_umount_key) at:
 [<c0163b9e>] get_sb_nodev+0x76/0xa4
 but there are no more locks to release!

 other info that might help us debug this:
 no locks held by automount/4199.

 stack backtrace:
  [<c0103b15>] dump_trace+0x68/0x1b2
  [<c0103c77>] show_trace_log_lvl+0x18/0x2c
  [<c01041db>] show_trace+0xf/0x11
  [<c010424d>] dump_stack+0x12/0x14
  [<c012e02c>] print_unlock_inbalance_bug+0xe7/0xf3
  [<c012fd4f>] lock_release+0x8d/0x164
  [<c012b452>] up_write+0x14/0x27
  [<c0163b9e>] get_sb_nodev+0x76/0xa4
  [<c0163689>] vfs_kern_mount+0x83/0xf6
  [<c016373e>] do_kern_mount+0x2d/0x3e
  [<c017513f>] do_mount+0x607/0x67a
  [<c0175224>] sys_mount+0x72/0xa4
  [<c0102b96>] sysenter_past_esp+0x5f/0x99
 DWARF2 unwinder stuck at sysenter_past_esp+0x5f/0x99
 Leftover inexact backtrace:
  =======================

and then deadlock comes.

The problem: autofs_fill_super() returns EINVAL to get_sb_nodev(), but
before that, it calls kill_anon_super() to destroy the superblock which
won't be needed.  This is however way too soon to call kill_anon_super(),
because get_sb_nodev() has to perform its own cleanup of the superblock
first (deactivate_super(), etc.).  The correct time to call
kill_anon_super() is in the autofs_kill_sb() callback, which is called by
deactivate_super() at proper time, when the superblock is ready to be
killed.

I can see the same faulty codepath also in autofs4.  This patch solves
issues in both filesystems in a same way - it postpones the
kill_anon_super() until the proper time is signalized by deactivate_super()
calling the kill_sb() callback.

[raven@themaw.net: update comment]
Signed-off-by: NJiri Kosina <jkosina@suse.cz>
Acked-by: NIan Kent <raven@themaw.net>
Cc: <stable@kernel.org>
Signed-off-by: NIan Kent <raven@themaw.net>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

c949d4eb

[PATCH] MAINTAINERS: Update the i2c and hwmon subsystems info · 595142e0

由 Jean Delvare 提交于 12月 06, 2006

The i2c and hwmon trees have moved to a new location.

The lm-sensors project moved to a new home as well.
Signed-off-by: NJean Delvare <khali@linux-fr.org>
Cc: Greg KH <greg@kroah.com>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

595142e0

[PATCH] make 8250_pnp serial driver work after suspend to ram · f29219f1

由 Mike Galbraith 提交于 12月 06, 2006

Add suspend/resume methods to drivers/serial/8250_pnp.c.  Tested on a
P4/HT 16550A box, ttyS0 login survives across suspend to ram.

[akpm@osdl.org: cleanups]
Signed-off-by: NMike Galbraith <efault@gmx.de>
Cc: "Rafael J. Wysocki" <rjw@sisk.pl>
Cc: Pavel Machek <pavel@ucw.cz>
Cc: Russell King <rmk@arm.linux.org.uk>
Cc: Adam Belay <ambx1@neo.rr.com>
Cc: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

f29219f1

[PATCH] ide_scsi: allow it to be used for non CD only · aaeab80b

由 Alan Cox 提交于 12月 06, 2006

Some people want to use ide_cd for CD-ROM but still dynamically load
ide-scsi for things like tape drives.  If you compile in the CD driver this
works out but if you want them modular you need an option to ensure that
whoever loads first the right things happen.

This replaces the original draft patch which leaked a scsi host reference

[akpm@osdl.org: add MODULE_PARM_DESC]
Signed-off-by: NAlan Cox <alan@redhat.com>
Cc: Bartlomiej Zolnierkiewicz <B.Zolnierkiewicz@elka.pw.edu.pl>
Cc: Jens Axboe <jens.axboe@oracle.com>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

aaeab80b

[PATCH] lockdep: show more details about self-test failures · 2ee91f19

由 Ingo Molnar 提交于 12月 06, 2006

Make the locking self-test failures (of 'FAILURE' type) easier to debug by
printing more information.
Signed-off-by: NIngo Molnar <mingo@elte.hu>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

2ee91f19

[PATCH] lockdep: more chains · 50cc670a

由 Ingo Molnar 提交于 12月 06, 2006

Some have reported a chain-table overflow - double its size.
Signed-off-by: NIngo Molnar <mingo@elte.hu>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

50cc670a

[PATCH] better CONFIG_W1_SLAVE_DS2433_CRC handling · e9d55f9d

由 Evgeniy Polyakov 提交于 12月 06, 2006

CONFIG_W1_SLAVE_DS2433_CRC can be used directly, there's no reason for the
indirection of defining a different variable in the Makefile.
Signed-off-by: NAdrian Bunk <bunk@stusta.de>
Signed-off-by: NEvgeniy Polyakov <johnpol@2ka.mipt.ru>
Cc: Greg KH <greg@kroah.com>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

e9d55f9d

[PATCH] ext4 balloc: fix _with_rsv freeze · ec0837f2