Commit Graph

178527 Commits

Author SHA1 Message Date
Phil Carmody
66ecb92be9 Driver core: bin_attribute parameters can often be const*
Many struct bin_attribute descriptors are purely read-only
structures, and there's no need to change them. Therefore
make the promise not to, which will let those descriptors
be put in a ro section.

Signed-off-by: Phil Carmody <ext-phil.2.carmody@nokia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-12-23 11:23:43 -08:00
Phil Carmody
26579ab70a Driver core: device_attribute parameters can often be const*
Most device_attributes are const, and are begging to be
put in a ro section. However, the create and remove
file interfaces were failing to propagate the const promise
which the only functions they call offer.

Signed-off-by: Phil Carmody <ext-phil.2.carmody@nokia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-12-23 11:23:43 -08:00
Sebastian Andrzej Siewior
8e9b936226 Doc/stable rules: add new cherry-pick logic
- it is possible to submit patches for the stable queue without sending
  them directly stable@kernel.org. If the tag (Cc: stable@kernel.org) is
  available in the sign-off area than hpa's script will filter them into
  the stable mailbox once it hits Linus' tree.
- Patches which require others to be applied first can be also specified.
  This was discussued in http://lkml.org/lkml/2009/11/9/474

Signed-off-by: Sebastian Andrzej Siewior <sebastian@breakpoint.cc>
Cc: Brandon Philips <brandon@ifup.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-12-23 11:23:43 -08:00
Kay Sievers
9329d1beae vfs: get_sb_single() - do not pass options twice
Filesystem code usually destroys the option buffer while
parsing it. This leads to errors when the same buffer is
passed twice. In case we fill a new superblock do not call
remount.

This is needed to quite a warning that the debugfs code
causes every boot.

Cc: Miklos Szeredi <miklos@szeredi.hu>
Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-12-23 11:23:43 -08:00
Thomas Gleixner
f1f76f865b devtmpfs: Convert dirlock to a mutex
devtmpfs has a rw_lock dirlock which serializes delete_path and
create_path.

This code was obviously never tested with the usual set of debugging
facilities enabled. In the dirlock held sections the code calls:

 - vfs functions which take mutexes
 - kmalloc(, GFP_KERNEL)

In both code pathes the might sleep warning triggers and spams dmesg.

Convert the rw_lock to a mutex. There is no reason why this needs to
be a rwlock.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Kay Sievers <kay.sievers@vrfy.org>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-12-23 11:23:42 -08:00
Linus Torvalds
6f40334694 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6:
  ALSA: hda - Add STAC9205 PCI_QUIRK for Dell Vostro 1700
  ASoC: Do not write to invalid registers on the wm9712.
  ALSA: hda - Set mixer name after codec patch
  ASoC: add missing parameter to mx27vis_hifi_hw_free()
  ASoC: sh: FSI:: don't check platform_get_irq's return value against zero
  ALSA: sound/core/pcm_timer.c: use lib/gcd.c
  ALSA: hda - Add MSI blacklist
  ALSA: hda - Add support for the new 27 inch IMacs
  ALSA: hda - Fix NULL dereference with enable_beep=0 option
2009-12-23 10:01:20 -08:00
Greg Kroah-Hartman
193cb93e5a Merge branch 'master' of /home/gregkh/linux/git/torvalds-2.6 2009-12-23 10:00:05 -08:00
Takashi Iwai
54a26089a2 Merge branch 'fix/hda' into for-linus 2009-12-23 18:50:17 +01:00
Takashi Iwai
3095b165a1 Merge branch 'fix/asoc' into for-linus 2009-12-23 18:50:13 +01:00
Takashi Iwai
4dc2ec09b8 Merge branch 'fix/misc' into for-linus 2009-12-23 18:49:55 +01:00
Anisse Astier
95e70e8753 ALSA: hda - Add STAC9205 PCI_QUIRK for Dell Vostro 1700
Signed-off-by: Anisse Astier <anisse@astier.eu>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2009-12-23 18:49:22 +01:00
Randy Dunlap
9c717de946 kfifo: fix Error/broken kernel-doc notation
Fix kernel-doc errors and warnings in new header file kfifo.h.
Don't use kernel-doc "/**" for internal functions whose comments
are not in kernel-doc format.

kernel-doc section header names (like "Note:") must be unique
per function.  Looks like I need to document that.

  Error(include/linux/kfifo.h:76): duplicate section name 'Note'
  Warning(include/linux/kfifo.h:88): Excess function parameter 'size' description in 'INIT_KFIFO'
  Error(include/linux/kfifo.h:101): duplicate section name 'Note'
  Warning(include/linux/kfifo.h:257): No description found for parameter 'fifo'
    (many of this last type, from internal functions)

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Cc: Stefani Seibold <stefani@seibold.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-12-23 09:30:37 -08:00
Linus Torvalds
6432ed648a Merge branch 'sched-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'sched-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  sched: Revert 738d2be, simplify set_task_cpu()
2009-12-23 09:12:57 -08:00
Linus Torvalds
94e5165aa7 Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs-2.6
* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs-2.6:
  quota: Improve checking of quota file header
  jbd: jbd-debug and jbd2-debug should be writable
  ext4: fix sleep inside spinlock issue with quota and dealloc (#14739)
  ext4: Fix potential quota deadlock
  quota: Fix 64-bit limits setting on 32-bit archs
  ext3: Replace lock/unlock_super() with an explicit lock for resizing
  ext3: Replace lock/unlock_super() with an explicit lock for the orphan list
  ext3: ext3_mark_recovery_complete() doesn't need to use lock_super
  ext3: Remove outdated comment about lock_super()
  quota: Move duplicated code to separate functions
  ext4: Convert to generic reserved quota's space management.
  quota: decouple fs reserved space from quota reservation
  Add unlocked version of inode_add_bytes() function
  ext3: quota macros cleanup [V2]
2009-12-23 09:12:20 -08:00
Linus Torvalds
f42ecb2808 Merge branch 'drm-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6
* 'drm-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6: (35 commits)
  drm/radeon/kms: add definitions for v4 power tables
  drm/radeon/kms: never combine LVDS with another encoder
  drm/radeon/kms: Check module arguments to be valid V2
  drm/radeon/kms: Avoid crash when trying to cleanup uninitialized structure
  drm/radeon/kms: add cvt mode if we only have lvds w/h and no edid (v4)
  drm/radeon/kms: add 3DC compression support
  drm/radeon/kms: allow rendering while no colorbuffer is set on r300
  drm/radeon/kms: enable memory clock reading on legacy (V2)
  drm/radeon/kms: prevent parallel AtomBIOS calls
  drm/radeon/kms: set proper default tv standard
  drm/radeon/kms: fix legacy rmx
  drm/radeon/kms/atom: fill in proper defines for digital setup
  drm/kms: silencing a false positive warning.
  drm/mm: fix logic for selection of best fit block
  drm/vmwgfx: Use TTM handles instead of SIDs as user-space surface handles.
  drm/vmwgfx: Return -ERESTARTSYS when interrupted by a signal.
  drm/vmwgfx: Fix unlocked ioctl and add proper access control
  drm/radeon: fix build on 64-bit with some compilers.
  drivers/gpu: Use kzalloc for allocating only one thing
  DRM: Rename clamp variable
  ...
2009-12-23 08:59:32 -08:00
Stefani Seibold
119eecc831 Fix usb_serial_probe() problem introduced by the recent kfifo changes
The USB serial code was a new user of the kfifo API, and it was missed
when porting things to the new kfifo API.

Please make the write_fifo in place.  Here is my patch to fix the
regression and full ported version.

Signed-off-by: Stefani Seibold <stefani@seibold.net>
Reported-and-tested-by: Rafael J. Wysocki <rjw@sisk.pl>
Cc: Greg KH <greg@kroah.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-12-23 08:53:31 -08:00
Eric Millbrandt
48e3cbb3f6 ASoC: Do not write to invalid registers on the wm9712.
This patch fixes a bug where "virtual" registers were being written to the ac97
bus.  This was causing unrelated registers to become corrupted (headphone 0x04,
touchscreen 0x78, etc).

This patch duplicates protection that was included in the wm9713 driver.

Signed-off-by: Eric Millbrandt <emillbrandt@dekaresearch.com>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Cc: stable@kernel.org
2009-12-23 15:20:56 +00:00
Jan Kara
869835dfad quota: Improve checking of quota file header
When we are asked for vfsv0 quota format and the file is in vfsv1
format (or vice versa), refuse to use the quota file. Also return
with error when we don't like the header of quota file.

Signed-off-by: Jan Kara <jack@suse.cz>
2009-12-23 13:44:13 +01:00
Yin Kangkai
765f836190 jbd: jbd-debug and jbd2-debug should be writable
jbd-debug and jbd2-debug is currently read-only (S_IRUGO), which is not
correct. Make it writable so that we can start debuging.

Signed-off-by: Yin Kangkai <kangkai.yin@intel.com>
Reviewed-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Jan Kara <jack@suse.cz>
2009-12-23 13:44:13 +01:00
Dmitry Monakhov
39bc680a81 ext4: fix sleep inside spinlock issue with quota and dealloc (#14739)
Unlock i_block_reservation_lock before vfs_dq_reserve_block().
This patch fixes http://bugzilla.kernel.org/show_bug.cgi?id=14739

CC: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Dmitry Monakhov <dmonakhov@openvz.org>
Signed-off-by: Jan Kara <jack@suse.cz>
2009-12-23 13:44:12 +01:00
Dmitry Monakhov
d21cd8f163 ext4: Fix potential quota deadlock
We have to delay vfs_dq_claim_space() until allocation context destruction.
Currently we have following call-trace:
ext4_mb_new_blocks()
  /* task is already holding ac->alloc_semp */
 ->ext4_mb_mark_diskspace_used
    ->vfs_dq_claim_space()  /*  acquire dqptr_sem here. Possible deadlock */
 ->ext4_mb_release_context() /* drop ac->alloc_semp here */

Let's move quota claiming to ext4_da_update_reserve_space()

 =======================================================
 [ INFO: possible circular locking dependency detected ]
 2.6.32-rc7 #18
 -------------------------------------------------------
 write-truncate-/3465 is trying to acquire lock:
  (&s->s_dquot.dqptr_sem){++++..}, at: [<c025e73b>] dquot_claim_space+0x3b/0x1b0

 but task is already holding lock:
  (&meta_group_info[i]->alloc_sem){++++..}, at: [<c02ce962>] ext4_mb_load_buddy+0xb2/0x370

 which lock already depends on the new lock.

 the existing dependency chain (in reverse order) is:

 -> #3 (&meta_group_info[i]->alloc_sem){++++..}:
        [<c017d04b>] __lock_acquire+0xd7b/0x1260
        [<c017d5ea>] lock_acquire+0xba/0xd0
        [<c0527191>] down_read+0x51/0x90
        [<c02ce962>] ext4_mb_load_buddy+0xb2/0x370
        [<c02d0c1c>] ext4_mb_free_blocks+0x46c/0x870
        [<c029c9d3>] ext4_free_blocks+0x73/0x130
        [<c02c8cfc>] ext4_ext_truncate+0x76c/0x8d0
        [<c02a8087>] ext4_truncate+0x187/0x5e0
        [<c01e0f7b>] vmtruncate+0x6b/0x70
        [<c022ec02>] inode_setattr+0x62/0x190
        [<c02a2d7a>] ext4_setattr+0x25a/0x370
        [<c022ee81>] notify_change+0x151/0x340
        [<c021349d>] do_truncate+0x6d/0xa0
        [<c0221034>] may_open+0x1d4/0x200
        [<c022412b>] do_filp_open+0x1eb/0x910
        [<c021244d>] do_sys_open+0x6d/0x140
        [<c021258e>] sys_open+0x2e/0x40
        [<c0103100>] sysenter_do_call+0x12/0x32

 -> #2 (&ei->i_data_sem){++++..}:
        [<c017d04b>] __lock_acquire+0xd7b/0x1260
        [<c017d5ea>] lock_acquire+0xba/0xd0
        [<c0527191>] down_read+0x51/0x90
        [<c02a5787>] ext4_get_blocks+0x47/0x450
        [<c02a74c1>] ext4_getblk+0x61/0x1d0
        [<c02a7a7f>] ext4_bread+0x1f/0xa0
        [<c02bcddc>] ext4_quota_write+0x12c/0x310
        [<c0262d23>] qtree_write_dquot+0x93/0x120
        [<c0261708>] v2_write_dquot+0x28/0x30
        [<c025d3fb>] dquot_commit+0xab/0xf0
        [<c02be977>] ext4_write_dquot+0x77/0x90
        [<c02be9bf>] ext4_mark_dquot_dirty+0x2f/0x50
        [<c025e321>] dquot_alloc_inode+0x101/0x180
        [<c029fec2>] ext4_new_inode+0x602/0xf00
        [<c02ad789>] ext4_create+0x89/0x150
        [<c0221ff2>] vfs_create+0xa2/0xc0
        [<c02246e7>] do_filp_open+0x7a7/0x910
        [<c021244d>] do_sys_open+0x6d/0x140
        [<c021258e>] sys_open+0x2e/0x40
        [<c0103100>] sysenter_do_call+0x12/0x32

 -> #1 (&sb->s_type->i_mutex_key#7/4){+.+...}:
        [<c017d04b>] __lock_acquire+0xd7b/0x1260
        [<c017d5ea>] lock_acquire+0xba/0xd0
        [<c0526505>] mutex_lock_nested+0x65/0x2d0
        [<c0260c9d>] vfs_load_quota_inode+0x4bd/0x5a0
        [<c02610af>] vfs_quota_on_path+0x5f/0x70
        [<c02bc812>] ext4_quota_on+0x112/0x190
        [<c026345a>] sys_quotactl+0x44a/0x8a0
        [<c0103100>] sysenter_do_call+0x12/0x32

 -> #0 (&s->s_dquot.dqptr_sem){++++..}:
        [<c017d361>] __lock_acquire+0x1091/0x1260
        [<c017d5ea>] lock_acquire+0xba/0xd0
        [<c0527191>] down_read+0x51/0x90
        [<c025e73b>] dquot_claim_space+0x3b/0x1b0
        [<c02cb95f>] ext4_mb_mark_diskspace_used+0x36f/0x380
        [<c02d210a>] ext4_mb_new_blocks+0x34a/0x530
        [<c02c83fb>] ext4_ext_get_blocks+0x122b/0x13c0
        [<c02a5966>] ext4_get_blocks+0x226/0x450
        [<c02a5ff3>] mpage_da_map_blocks+0xc3/0xaa0
        [<c02a6ed6>] ext4_da_writepages+0x506/0x790
        [<c01de272>] do_writepages+0x22/0x50
        [<c01d766d>] __filemap_fdatawrite_range+0x6d/0x80
        [<c01d7b9b>] filemap_flush+0x2b/0x30
        [<c02a40ac>] ext4_alloc_da_blocks+0x5c/0x60
        [<c029e595>] ext4_release_file+0x75/0xb0
        [<c0216b59>] __fput+0xf9/0x210
        [<c0216c97>] fput+0x27/0x30
        [<c02122dc>] filp_close+0x4c/0x80
        [<c014510e>] put_files_struct+0x6e/0xd0
        [<c01451b7>] exit_files+0x47/0x60
        [<c0146a24>] do_exit+0x144/0x710
        [<c0147028>] do_group_exit+0x38/0xa0
        [<c0159abc>] get_signal_to_deliver+0x2ac/0x410
        [<c0102849>] do_notify_resume+0xb9/0x890
        [<c01032d2>] work_notifysig+0x13/0x21

 other info that might help us debug this:

 3 locks held by write-truncate-/3465:
  #0:  (jbd2_handle){+.+...}, at: [<c02e1f8f>] start_this_handle+0x38f/0x5c0
  #1:  (&ei->i_data_sem){++++..}, at: [<c02a57f6>] ext4_get_blocks+0xb6/0x450
  #2:  (&meta_group_info[i]->alloc_sem){++++..}, at: [<c02ce962>] ext4_mb_load_buddy+0xb2/0x370

 stack backtrace:
 Pid: 3465, comm: write-truncate- Not tainted 2.6.32-rc7 #18
 Call Trace:
  [<c0524cb3>] ? printk+0x1d/0x22
  [<c017ac9a>] print_circular_bug+0xca/0xd0
  [<c017d361>] __lock_acquire+0x1091/0x1260
  [<c016bca2>] ? sched_clock_local+0xd2/0x170
  [<c0178fd0>] ? trace_hardirqs_off_caller+0x20/0xd0
  [<c017d5ea>] lock_acquire+0xba/0xd0
  [<c025e73b>] ? dquot_claim_space+0x3b/0x1b0
  [<c0527191>] down_read+0x51/0x90
  [<c025e73b>] ? dquot_claim_space+0x3b/0x1b0
  [<c025e73b>] dquot_claim_space+0x3b/0x1b0
  [<c02cb95f>] ext4_mb_mark_diskspace_used+0x36f/0x380
  [<c02d210a>] ext4_mb_new_blocks+0x34a/0x530
  [<c02c601d>] ? ext4_ext_find_extent+0x25d/0x280
  [<c02c83fb>] ext4_ext_get_blocks+0x122b/0x13c0
  [<c016bca2>] ? sched_clock_local+0xd2/0x170
  [<c016be60>] ? sched_clock_cpu+0x120/0x160
  [<c016beef>] ? cpu_clock+0x4f/0x60
  [<c0178fd0>] ? trace_hardirqs_off_caller+0x20/0xd0
  [<c052712c>] ? down_write+0x8c/0xa0
  [<c02a5966>] ext4_get_blocks+0x226/0x450
  [<c016be60>] ? sched_clock_cpu+0x120/0x160
  [<c016beef>] ? cpu_clock+0x4f/0x60
  [<c017908b>] ? trace_hardirqs_off+0xb/0x10
  [<c02a5ff3>] mpage_da_map_blocks+0xc3/0xaa0
  [<c01d69cc>] ? find_get_pages_tag+0x16c/0x180
  [<c01d6860>] ? find_get_pages_tag+0x0/0x180
  [<c02a73bd>] ? __mpage_da_writepage+0x16d/0x1a0
  [<c01dfc4e>] ? pagevec_lookup_tag+0x2e/0x40
  [<c01ddf1b>] ? write_cache_pages+0xdb/0x3d0
  [<c02a7250>] ? __mpage_da_writepage+0x0/0x1a0
  [<c02a6ed6>] ext4_da_writepages+0x506/0x790
  [<c016beef>] ? cpu_clock+0x4f/0x60
  [<c016bca2>] ? sched_clock_local+0xd2/0x170
  [<c016be60>] ? sched_clock_cpu+0x120/0x160
  [<c016be60>] ? sched_clock_cpu+0x120/0x160
  [<c02a69d0>] ? ext4_da_writepages+0x0/0x790
  [<c01de272>] do_writepages+0x22/0x50
  [<c01d766d>] __filemap_fdatawrite_range+0x6d/0x80
  [<c01d7b9b>] filemap_flush+0x2b/0x30
  [<c02a40ac>] ext4_alloc_da_blocks+0x5c/0x60
  [<c029e595>] ext4_release_file+0x75/0xb0
  [<c0216b59>] __fput+0xf9/0x210
  [<c0216c97>] fput+0x27/0x30
  [<c02122dc>] filp_close+0x4c/0x80
  [<c014510e>] put_files_struct+0x6e/0xd0
  [<c01451b7>] exit_files+0x47/0x60
  [<c0146a24>] do_exit+0x144/0x710
  [<c017b163>] ? lock_release_holdtime+0x33/0x210
  [<c0528137>] ? _spin_unlock_irq+0x27/0x30
  [<c0147028>] do_group_exit+0x38/0xa0
  [<c017babb>] ? trace_hardirqs_on+0xb/0x10
  [<c0159abc>] get_signal_to_deliver+0x2ac/0x410
  [<c0102849>] do_notify_resume+0xb9/0x890
  [<c0178fd0>] ? trace_hardirqs_off_caller+0x20/0xd0
  [<c017b163>] ? lock_release_holdtime+0x33/0x210
  [<c0165b50>] ? autoremove_wake_function+0x0/0x50
  [<c017ba54>] ? trace_hardirqs_on_caller+0x134/0x190
  [<c017babb>] ? trace_hardirqs_on+0xb/0x10
  [<c0300ba4>] ? security_file_permission+0x14/0x20
  [<c0215761>] ? vfs_write+0x131/0x190
  [<c0214f50>] ? do_sync_write+0x0/0x120
  [<c0103115>] ? sysenter_do_call+0x27/0x32
  [<c01032d2>] work_notifysig+0x13/0x21

CC: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Dmitry Monakhov <dmonakhov@openvz.org>
Signed-off-by: Jan Kara <jack@suse.cz>
2009-12-23 13:44:12 +01:00
Jan Kara
82fdfa928c quota: Fix 64-bit limits setting on 32-bit archs
Fix warnings:
fs/quota/quota_v2.c: In function ‘v2_read_file_info’:
fs/quota/quota_v2.c:123: warning: integer constant is too large for ‘long’ type
fs/quota/quota_v2.c:124: warning: integer constant is too large for ‘long’ type

Reported-by: Jerry Leo <jerryleo860202@gmail.com>
Signed-off-by: Jan Kara <jack@suse.cz>
2009-12-23 13:44:12 +01:00
Eric Sandeen
96d2a495c2 ext3: Replace lock/unlock_super() with an explicit lock for resizing
Use a separate lock to protect s_groups_count and the other block
group descriptors which get changed via an on-line resize operation,
so we can stop overloading the use of lock_super().

Port of ext4 commit 32ed5058ce by
Theodore Ts'o <tytso@mit.edu>.

CC: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Eric Sandeen <sandeen@redhat.com>
Signed-off-by: Jan Kara <jack@suse.cz>
2009-12-23 13:44:12 +01:00
Eric Sandeen
b8a052d016 ext3: Replace lock/unlock_super() with an explicit lock for the orphan list
Use a separate lock to protect the orphan list, so we can stop
overloading the use of lock_super().

Port of ext4 commit 3b9d4ed266
by Theodore Ts'o <tytso@mit.edu>.

CC: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Eric Sandeen <sandeen@redhat.com>
Signed-off-by: Jan Kara <jack@suse.cz>
2009-12-23 13:44:11 +01:00
Eric Sandeen
4854a5f0cb ext3: ext3_mark_recovery_complete() doesn't need to use lock_super
The function ext3_mark_recovery_complete() is called from two call
paths: either (a) while mounting the filesystem, in which case there's
no danger of any other CPU calling write_super() until the mount is
completed, and (b) while remounting the filesystem read-write, in
which case the fs core has already locked the superblock.  This also
allows us to take out a very vile unlock_super()/lock_super() pair in
ext3_remount().

Port of ext4 commit a63c9eb2ce by
Theodore Ts'o <tytso@mit.edu>.

CC: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Eric Sandeen <sandeen@redhat.com>
Signed-off-by: Jan Kara <jack@suse.cz>
2009-12-23 13:44:11 +01:00
Eric Sandeen
ed505ee454 ext3: Remove outdated comment about lock_super()
ext3_fill_super() is no longer called by read_super(), and it is no
longer called with the superblock locked.  The
unlock_super()/lock_super() is no longer present, so this comment is
entirely superfluous.

Port of ext4 commit 32ed5058ce by
Theodore Ts'o <tytso@mit.edu>.

CC: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Eric Sandeen <sandeen@redhat.com>
Signed-off-by: Jan Kara <jack@suse.cz>
2009-12-23 13:43:50 +01:00
Dmitry Monakhov
dc52dd3a3a quota: Move duplicated code to separate functions
- for(..) { mark_dquot_dirty(); } -> mark_all_dquot_dirty()
- for(..) { dput(); }             -> dqput_all()

Signed-off-by: Dmitry Monakhov <dmonakhov@openvz.org>
Signed-off-by: Jan Kara <jack@suse.cz>
2009-12-23 13:33:55 +01:00
Dmitry Monakhov
a9e7f44720 ext4: Convert to generic reserved quota's space management.
This patch also fixes write vs chown race condition.

Acked-by: "Theodore Ts'o" <tytso@mit.edu>
Signed-off-by: Dmitry Monakhov <dmonakhov@openvz.org>
Signed-off-by: Jan Kara <jack@suse.cz>
2009-12-23 13:33:55 +01:00
Dmitry Monakhov
fd8fbfc170 quota: decouple fs reserved space from quota reservation
Currently inode_reservation is managed by fs itself and this
reservation is transfered on dquot_transfer(). This means what
inode_reservation must always be in sync with
dquot->dq_dqb.dqb_rsvspace. Otherwise dquot_transfer() will result
in incorrect quota(WARN_ON in dquot_claim_reserved_space() will be
triggered)
This is not easy because of complex locking order issues
for example http://bugzilla.kernel.org/show_bug.cgi?id=14739

The patch introduce quota reservation field for each fs-inode
(fs specific inode is used in order to prevent bloating generic
vfs inode). This reservation is managed by quota code internally
similar to i_blocks/i_bytes and may not be always in sync with
internal fs reservation.

Also perform some code rearrangement:
- Unify dquot_reserve_space() and dquot_reserve_space()
- Unify dquot_release_reserved_space() and dquot_free_space()
- Also this patch add missing warning update to release_rsv()
  dquot_release_reserved_space() must call flush_warnings() as
  dquot_free_space() does.

Signed-off-by: Dmitry Monakhov <dmonakhov@openvz.org>
Signed-off-by: Jan Kara <jack@suse.cz>
2009-12-23 13:33:54 +01:00
Dmitry Monakhov
b462707e7c Add unlocked version of inode_add_bytes() function
Quota code requires unlocked version of this function. Off course
we can just copy-paste the code, but copy-pasting is always an evil.

Signed-off-by: Dmitry Monakhov <dmonakhov@openvz.org>
Signed-off-by: Jan Kara <jack@suse.cz>
2009-12-23 13:33:54 +01:00
Dmitry Monakhov
c459001fa4 ext3: quota macros cleanup [V2]
Currently all quota block reservation macros contains hardcoded "2"
aka MAXQUOTAS value. This is no good because in some places it is not
obvious to understand what does this digit represent. Let's introduce
new macro with self descriptive name.

Signed-off-by: Dmitry Monakhov <dmonakhov@openvz.org>
Signed-off-by: Jan Kara <jack@suse.cz>
2009-12-23 13:33:54 +01:00
Peter Zijlstra
0c69774e6c sched: Revert 738d2be, simplify set_task_cpu()
Effectively reverts 738d2be430.

As demonstrated by Eric, we really need to call __set_task_cpu()
early in the fork() path to properly initialize the various task
state -- specifically the cgroup state through set_task_rq().

[ we could probably fix this by explicitly calling
  __set_task_cpu() from   sched_fork(), but lets try that for the
  next cycle and simply revert to the old behaviour for now. ]

Reported-by: Eric Paris <eparis@redhat.com>
Tested-by: Eric Paris <eparis@redhat.com>,
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: efault@gmx.de
LKML-Reference: <1261492999.4937.36.camel@laptop>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-12-23 10:04:10 +01:00
Takashi Iwai
f62faedbed ALSA: hda - Set mixer name after codec patch
Postpone the mixer name setup after the codec patch since the codec
patch may change the codec name string in itself.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2009-12-23 09:27:51 +01:00
Takashi Iwai
21949f00a0 ALSA: hda - Fix NID association for capture mixers
Fix the wrong implementation of NID <-> kctl mapping for capture mixers
introduced by the ocmmit 5b0cb1d850.
So far, the driver returns an error at probe.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2009-12-23 08:38:28 +01:00
Takashi Iwai
524027916e Merge branch 'fix/hda' into topic/hda 2009-12-23 08:38:23 +01:00
Anisse Astier
0f1006b1f2 MAINTAINERS: add maintainer for msi-wmi driver
Signed-off-by: Anisse Astier <anisse@astier.eu>
Signed-off-by: Len Brown <len.brown@intel.com>
2009-12-23 02:26:33 -05:00
Jonathan Woithe
3b1c37cab3 fujitu-laptop: fix tests of acpi_evaluate_integer() return value
Fix tests on return value from acpi_evaluate_integer().  Based on a patch by
Roel Kluin <roel.kluin@gmail.com> and incorporating suggestions from Len
Brown <lenb@kernel.org>.

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: Jonathan Woithe <jwoithe@physics.adelaide.edu.au>
Signed-off-by: Len Brown <len.brown@intel.com>
2009-12-23 02:24:32 -05:00
Dave Airlie
d94a5108f7 Merge remote branch 'korg/drm-radeon-next' into drm-linus
* korg/drm-radeon-next:
  drm/radeon/kms: add definitions for v4 power tables
  drm/radeon/kms: never combine LVDS with another encoder
  drm/radeon/kms: Check module arguments to be valid V2
  drm/radeon/kms: Avoid crash when trying to cleanup uninitialized structure
  drm/radeon/kms: add cvt mode if we only have lvds w/h and no edid (v4)
  drm/radeon/kms: add 3DC compression support
  drm/radeon/kms: allow rendering while no colorbuffer is set on r300
  drm/radeon/kms: enable memory clock reading on legacy (V2)
  drm/radeon/kms: prevent parallel AtomBIOS calls
  drm/radeon/kms: set proper default tv standard
  drm/radeon/kms: fix legacy rmx
  drm/radeon/kms/atom: fill in proper defines for digital setup
2009-12-23 11:18:33 +10:00
Alex Deucher
0786201d8c drm/radeon/kms: add definitions for v4 power tables
[airlied: just adding this for completeness to avoid drift between
public atombios.h files]
Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2009-12-23 11:14:05 +10:00
Alex Deucher
f56cd64f5f drm/radeon/kms: never combine LVDS with another encoder
When linking multiple encoders to a connector, make sure
to not link LVDS with another connector.  Some bioses
have the same i2c line for LVDS and VGA.

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2009-12-23 11:14:05 +10:00
Jerome Glisse
3642133816 drm/radeon/kms: Check module arguments to be valid V2
This patch add a function which check module argument to be
valid. On invalid argument it prints a warning and setback
the default value.

V2: Allow 0 for vram limit & agp mode which are the default
value

Signed-off-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2009-12-23 11:14:05 +10:00
Jerome Glisse
0a0c7596c6 drm/radeon/kms: Avoid crash when trying to cleanup uninitialized structure
Add boolean to record if some part of the driver are initialized or
not this allow to avoid a crash when trying to cleanup uninitialized
structure members.

Signed-off-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2009-12-23 11:14:04 +10:00
Alex Deucher
d2efdf6d6f drm/radeon/kms: add cvt mode if we only have lvds w/h and no edid (v4)
This fixes LVDS on some mac laptops without a panel edid.

v2 - Set proper mode type flags
v3 - Note that this is not neceesarily the exact panel mode,
but an approximation based on the cvt formula.  For these
systems we should ideally read the mode info out of the
registers or add a mode table, but this works and is much
simpler.
v4 - Update comments and debug message.

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2009-12-23 11:14:04 +10:00
Marek Olšák
512889f450 drm/radeon/kms: add 3DC compression support
There are 2 formats:
ATI1N: 64 bits per 4x4 block, one-channel format
ATI2N: 128 bits per 4x4 block, two-channel format

Signed-off-by: Dave Airlie <airlied@redhat.com>
2009-12-23 11:14:04 +10:00
Marek Olšák
46c64d4bfa drm/radeon/kms: allow rendering while no colorbuffer is set on r300
Because hardware cannot disable all colorbuffers directly to do depth-only
rendering, a user should:
- disable reading from a colorbuffer in blending
- disable fastfill
- set the color channel mask to 0 to prevent writing to a colorbuffer

Signed-off-by: Dave Airlie <airlied@redhat.com>
2009-12-23 11:14:04 +10:00
Rafał Miłecki
5ea597f376 drm/radeon/kms: enable memory clock reading on legacy (V2)
V2: detect IGP cards (which don't have own memory)

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Acked-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2009-12-23 11:14:04 +10:00
Rafał Miłecki
c31ad97f18 drm/radeon/kms: prevent parallel AtomBIOS calls
This just adds a mutex around the atombios table execution
so we don't call it from two contexts at once.

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2009-12-23 11:14:03 +10:00
Alex Deucher
d79766fab9 drm/radeon/kms: set proper default tv standard
we were just using 1 before.

reported on irc by soreau

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2009-12-23 11:14:03 +10:00
Alex Deucher
310a82c8c5 drm/radeon/kms: fix legacy rmx
This makes 640x480 on my R100 work again, both
in aspect and centered mode.

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Tested-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2009-12-23 11:14:03 +10:00
Alex Deucher
edc664e314 drm/radeon/kms/atom: fill in proper defines for digital setup
Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2009-12-23 11:14:03 +10:00