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Commit Graph

323338 Commits

Author SHA1 Message Date
Josef Bacik
54338b5cc4 Btrfs: do not allocate chunks as agressively
Swinging this pendulum back the other way.  We've been allocating chunks up
to 2% of the disk no matter how much we actually have allocated.  So instead
fix this calculation to only allocate chunks if we have more than 80% of the
space available allocated.  Please test this as it will likely cause all
sorts of ENOSPC problems to pop up suddenly.  Thanks,

Signed-off-by: Josef Bacik <jbacik@fusionio.com>
2012-10-01 15:19:02 -04:00
Josef Bacik
7c735313bd Btrfs: update last trans if we don't update the inode
There is a completely impossible situation to hit where you can preallocate
a file, fsync it, write into the preallocated region, have the transaction
commit twice and then fsync and then immediately lose power and lose all of
the contents of the write.  This patch fixes this just so I feel better
about the situation and because it is lightweight, we just update the
last_trans when we finish an ordered IO and we don't update the inode
itself.  This way we are completely safe and I feel better.  Thanks,

Signed-off-by: Josef Bacik <jbacik@fusionio.com>
2012-10-01 15:19:02 -04:00
Jan Schmidt
995e01b7af Btrfs: fix gcc warnings for 32bit compiles
Signed-off-by: Jan Schmidt <list.btrfs@jan-o-sch.net>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
2012-10-01 15:19:01 -04:00
Chris Mason
74dd17fbe3 Btrfs: fix btrfs send for inline items and compression
The btrfs send code was assuming the offset of the file item into the
extent translated to bytes on disk.  If we're compressed, this isn't
true, and so it was off into extents owned by other files.

It was also improperly handling inline extents.  This solves a crash
where we may have gone past the end of the file extent item by not
testing early enough for an inline extent.  It also solves problems
where we have a whole between the end of the inline item and the start
of the full extent.

Signed-off-by: Chris Mason <chris.mason@fusionio.com>
2012-10-01 15:19:00 -04:00
Alexander Block
6d85ed05e1 Btrfs: don't treat top/root directory inode as deleted/reused
We can't do the deleted/reused logic for top/root inodes as it would
create a stream that tries to delete and recreate the root dir.

Reported-by: Alex Lyakas <alex.bolshoy.btrfs@gmail.com>
Signed-off-by: Alexander Block <ablock84@googlemail.com>
2012-10-01 15:19:00 -04:00
Alexander Block
2981e225f7 Btrfs: ignore non-FS inodes for send/receive
We have to ignore inode/space cache objects in send/receive.

Reported-by: Alex Lyakas <alex.bolshoy.btrfs@gmail.com>
Signed-off-by: Alexander Block <ablock84@googlemail.com>
2012-10-01 15:18:59 -04:00
Alexander Block
2f28f4787c Btrfs: pass root instead of parent_root to iterate_inode_ref
We need to pass the root that we determined earlier to iterate_inode_ref.

Reported-by: Alex Lyakas <alex.bolshoy.btrfs@gmail.com>
Signed-off-by: Alexander Block <ablock84@googlemail.com>
2012-10-01 15:18:58 -04:00
Alexander Block
d8347fa444 Btrfs: use <= instead of < in is_extent_unchanged
Used the wrong compare operator here.

Reported-by: Alex Lyakas <alex.bolshoy.btrfs@gmail.com>
Signed-off-by: Alexander Block <ablock84@googlemail.com>
2012-10-01 15:18:58 -04:00
Alexander Block
3954096d4b Btrfs: fix check for changed extent in is_extent_unchanged
The previous check was working fine, but this check should be
easier to read. Also, we could theoritically have some exotic
bugs with the previous checks.

Signed-off-by: Alexander Block <ablock84@googlemail.com>
2012-10-01 15:18:57 -04:00
Alexander Block
5dc67d0ba9 Btrfs: free nce and nce_head on error in name_cache_insert
Both were leaked in case of error.

Reported-by: Alex Lyakas <alex.bolshoy.btrfs@gmail.com>
Signed-off-by: Alexander Block <ablock84@googlemail.com>
2012-10-01 15:18:56 -04:00
Alexander Block
3e126f32f8 Btrfs: remove unused tmp_path from iterate_dir_item
A leftover from older code and unused now.

Reported-by: Alex Lyakas <alex.bolshoy.btrfs@gmail.com>
Signed-off-by: Alexander Block <ablock84@googlemail.com>
2012-10-01 15:18:55 -04:00
Alexander Block
e938c8ad54 Btrfs: code cleanups for send/receive
Doing some code cleanups as suggested by Arne.
Changes do not change any logic.

Signed-off-by: Alexander Block <ablock84@googlemail.com>
2012-10-01 15:18:55 -04:00
Alexander Block
766702ef49 Btrfs: add/fix comments/documentation for send/receive
As the subject already said, add/fix comments.

Signed-off-by: Alexander Block <ablock84@googlemail.com>
2012-10-01 15:18:54 -04:00
Alexander Block
e479d9bb5f Btrfs: update send_progress at correct places
Updating send_progress in process_recorded_refs was not correct.
It got updated too early in the cur_inode_new_gen case.

Reported-by: Alex Lyakas <alex.bolshoy.btrfs@gmail.com>
Reported-by: Arne Jansen <sensille@gmx.net>
Signed-off-by: Alexander Block <ablock84@googlemail.com>
2012-10-01 15:18:53 -04:00
Alexander Block
34d73f54e2 Btrfs: make aux field of ulist 64 bit
Btrfs send/receive uses the aux field to store inode numbers. On
32 bit machines this may become a problem.

Also fix all users of ulist_add and ulist_add_merged.

Reported-by: Arne Jansen <sensille@gmx.net>
Signed-off-by: Alexander Block <ablock84@googlemail.com>
2012-10-01 15:18:53 -04:00
Alexander Block
7e0926fe5f Btrfs: fix use of radix_tree for name_cache in send/receive
We can't easily use the index of the radix tree for inums as the
radix tree uses 32bit indexes on 32bit kernels. For 32bit kernels,
we now use the lower 32bit of the inum as index and an additional
list to store multiple entries per radix tree entry.

Reported-by: Arne Jansen <sensille@gmx.net>
Signed-off-by: Alexander Block <ablock84@googlemail.com>
2012-10-01 15:18:52 -04:00
Alexander Block
17589bd96e Btrfs: fix memory leak for name_cache in send/receive
When everything is done, name_cache_free is called which however
forgot to call kfree on the cache entries.

Signed-off-by: Alexander Block <ablock84@googlemail.com>
2012-10-01 15:18:51 -04:00
Alexander Block
adbe7fb6c4 Btrfs: don't break in the final loop of find_extent_clone
If we break, we may miss the clone from send_root which we prefer
over all other clones.

Commit is a result of Arne's review.

Reported-by: Arne Jansen <sensille@gmx.net>
Signed-off-by: Alexander Block <ablock84@googlemail.com>
2012-10-01 15:18:50 -04:00
Alexander Block
52f9e53ede Btrfs: use normal return path for root == send_root case
Don't have a seperate return path for the mentioned case. Now
we do the same "take lowest inode/offset" logic for all found clones.

Commit is a result of Arne's review.

Signed-off-by: Alexander Block <ablock84@googlemail.com>
2012-10-01 15:18:50 -04:00
Alexander Block
35075bb046 Btrfs: use kmalloc instead of stack for backref_ctx
Make sure to never get in trouble due to the backref_ctx
which was on the stack before.

Commit is a result of Arne's review.

Signed-off-by: Alexander Block <ablock84@googlemail.com>
2012-10-01 15:18:49 -04:00
Alexander Block
ee849c0472 Btrfs: rename backref_ctx::found_in_send_root to found_itself
The new name should be easier to understand/read.

Commit is a result of Arne's review.

Signed-off-by: Alexander Block <ablock84@googlemail.com>
2012-10-01 15:18:48 -04:00
Alexander Block
d27aed5e24 Btrfs: remove unused use_list from send/receive code
use_list is a leftover and unused.

Signed-off-by: Alexander Block <ablock84@googlemail.com>
2012-10-01 15:18:48 -04:00
Alexander Block
ccf1626b49 Btrfs: add correct parent to check_dirs when dir got moved
We only added the parent for the new position of a moved dir.
We also need to add the old parent of the moved dir.

Reported-by: Alex Lyakas <alex.bolshoy.btrfs@gmail.com>
Signed-off-by: Alexander Block <ablock84@googlemail.com>
2012-10-01 15:18:47 -04:00
Alexander Block
9ea3ef516d Btrfs: remove unused code with #if 0
fs_path_remove is not used at the moment due to a previous patch.
Remove it for now (with #if 0) to avoid compile warnings.

Signed-off-by: Alexander Block <ablock84@googlemail.com>
2012-10-01 15:18:46 -04:00
Alexander Block
b9291affaa Btrfs: add missing check for dir != tmp_dir to is_first_ref
We missed that check which resultet in all refs with the same name
being reported as first_ref.

Reported-by: Alex Lyakas <alex.bolshoy.btrfs@gmail.com>
Signed-off-by: Alexander Block <ablock84@googlemail.com>
2012-10-01 15:18:45 -04:00
Alexander Block
1f4692da95 Btrfs: fix cur_ino < parent_ino case for send/receive
When the current inodes inum is smaller then the inum of the
parent directory strange things were happending due to wrong
path resolution and other bugs. Fix this with a new approach
for the problem.

Reported-by: Alex Lyakas <alex.bolshoy.btrfs@gmail.com>
Signed-off-by: Alexander Block <ablock84@googlemail.com>
2012-10-01 15:18:45 -04:00
Alexander Block
85a7b33b96 Btrfs: add rdev to get_inode_info in send/receive
We need rdev in the next commit.

Signed-off-by: Alexander Block <ablock84@googlemail.com>
2012-10-01 15:18:44 -04:00
Linus Torvalds
a0d271cbfe Linux 3.6 2012-09-30 16:47:46 -07:00
Miklos Szeredi
8110e16d42 vfs: dcache: fix deadlock in tree traversal
IBM reported a deadlock in select_parent().  This was found to be caused
by taking rename_lock when already locked when restarting the tree
traversal.

There are two cases when the traversal needs to be restarted:

 1) concurrent d_move(); this can only happen when not already locked,
    since taking rename_lock protects against concurrent d_move().

 2) racing with final d_put() on child just at the moment of ascending
    to parent; rename_lock doesn't protect against this rare race, so it
    can happen when already locked.

Because of case 2, we need to be able to handle restarting the traversal
when rename_lock is already held.  This patch fixes all three callers of
try_to_ascend().

IBM reported that the deadlock is gone with this patch.

[ I rewrote the patch to be smaller and just do the "goto again" if the
  lock was already held, but credit goes to Miklos for the real work.
   - Linus ]

Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Cc: Al Viro <viro@ZenIV.linux.org.uk>
Cc: stable@vger.kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-09-29 17:41:40 -07:00
Linus Torvalds
6a3e3dbee6 IOMMU fixes for Linux v3.6-rc7
Two small patches:
 
 	* One patch to fix the function declarations for
 	  !CONFIG_IOMMU_API. This is causing build errors
 	  in linux-next and should be fixed for v3.6.
 
 	* Another patch to fix an IOMMU group related NULL pointer
 	  dereference.
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Merge tag 'iommu-fixes-v3.6-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu

Pull IOMMU fixes from Joerg Roedel:
 "Two small patches:

	* One patch to fix the function declarations for
	  !CONFIG_IOMMU_API. This is causing build errors
	  in linux-next and should be fixed for v3.6.

	* Another patch to fix an IOMMU group related NULL pointer
	  dereference."

* tag 'iommu-fixes-v3.6-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu:
  iommu/amd: Fix wrong assumption in iommu-group specific code
  iommu: static inline iommu group stub functions
2012-09-29 10:37:04 -07:00
Linus Torvalds
21e98932dc Merge git://git.infradead.org/users/willy/linux-nvme
Pull NVMe driver fixes from Matthew Wilcox:
 "Now that actual hardware has been released (don't have any yet
  myself), people are starting to want some of these fixes merged."

Willy doesn't have hardware? Guys...

* git://git.infradead.org/users/willy/linux-nvme:
  NVMe: Cancel outstanding IOs on queue deletion
  NVMe: Free admin queue memory on initialisation failure
  NVMe: Use ida for nvme device instance
  NVMe: Fix whitespace damage in nvme_init
  NVMe: handle allocation failure in nvme_map_user_pages()
  NVMe: Fix uninitialized iod compiler warning
  NVMe: Do not set IO queue depth beyond device max
  NVMe: Set block queue max sectors
  NVMe: use namespace id for nvme_get_features
  NVMe: replace nvme_ns with nvme_dev for user admin
  NVMe: Fix nvme module init when nvme_major is set
  NVMe: Set request queue logical block size
2012-09-29 10:31:52 -07:00
Linus Torvalds
9c603e53d3 mtdchar: fix offset overflow detection
Sasha Levin has been running trinity in a KVM tools guest, and was able
to trigger the BUG_ON() at arch/x86/mm/pat.c:279 (verifying the range of
the memory type).  The call trace showed that it was mtdchar_mmap() that
created an invalid remap_pfn_range().

The problem is that mtdchar_mmap() does various really odd and subtle
things with the vma page offset etc, and uses the wrong types (and the
wrong overflow) detection for it.

For example, the page offset may well be 32-bit on a 32-bit
architecture, but after shifting it up by PAGE_SHIFT, we need to use a
potentially 64-bit resource_size_t to correctly hold the full value.

Also, we need to check that the vma length plus offset doesn't overflow
before we check that it is smaller than the length of the mtdmap region.

This fixes things up and tries to make the code a bit easier to read.

Reported-and-tested-by: Sasha Levin <levinsasha928@gmail.com>
Acked-by: Suresh Siddha <suresh.b.siddha@intel.com>
Acked-by: Artem Bityutskiy <dedekind1@gmail.com>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: linux-mtd@lists.infradead.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-09-28 12:13:46 -07:00
Linus Torvalds
6672d90fe7 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Pull networking fixes from David S Miller:

 1) Netfilter xt_limit module can use uninitialized rules, from Jan
    Engelhardt.

 2) Wei Yongjun has found several more spots where error pointers were
    treated as NULL/non-NULL and vice versa.

 3) bnx2x was converted to pci_io{,un}map() but one remaining plain
    iounmap() got missed.  From Neil Horman.

 4) Due to a fence-post type error in initialization of inetpeer entries
    (which is where we store the ICMP rate limiting information), we can
    erroneously drop ICMPs if the inetpeer was created right around when
    jiffies wraps.

    Fix from Nicolas Dichtel.

 5) smsc75xx resume fix from Steve Glendinnig.

 6) LAN87xx smsc chips need an explicit hardware init, from Marek Vasut.

 7) qlcnic uses msleep() with locks held, fix from Narendra K.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net:
  netdev: octeon: fix return value check in octeon_mgmt_init_phy()
  inetpeer: fix token initialization
  qlcnic: Fix scheduling while atomic bug
  bnx2: Clean up remaining iounmap
  net: phy: smsc: Implement PHY config_init for LAN87xx
  smsc75xx: fix resume after device reset
  netdev: pasemi: fix return value check in pasemi_mac_phy_init()
  team: fix return value check
  l2tp: fix return value check
  netfilter: xt_limit: have r->cost != 0 case work
2012-09-28 10:09:33 -07:00
Linus Torvalds
7596824e66 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull vfs fixes from Al Viro:
 "A couple of fixes; one for automount/lazy umount race, another a
  classic "we don't protect the refcount transition to zero with the
  lock that protects looking for object in hash" kind of crap in lockd."

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  close the race in nlmsvc_free_block()
  do_add_mount()/umount -l races
2012-09-28 10:02:53 -07:00
Linus Torvalds
97956605d8 Merge branch 'for-linus-3.6-rc-final' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml
Pull UML fixes from Richard Weinberger.

* 'for-linus-3.6-rc-final' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml:
  um: Preinclude include/linux/kern_levels.h
  um: Fix IPC on um
  um: kill thread->forking
  um: let signal_delivered() do SIGTRAP on singlestepping into handler
  um: don't leak floating point state and segment registers on execve()
  um: take cleaning singlestep to start_thread()
2012-09-28 10:00:52 -07:00
Linus Torvalds
c3a086e638 A few fixes for problems discovered during the 3.6 cycle.
Of particular note, are fixes to the thin target's discard support,
 which I hope is finally working correctly; and fixes for multipath
 ioctls and device limits when there are no paths.
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Merge tag 'dm-3.6-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/agk/linux-dm

Pull dm fixes from Alasdair G Kergon:
 "A few fixes for problems discovered during the 3.6 cycle.

  Of particular note, are fixes to the thin target's discard support,
  which I hope is finally working correctly; and fixes for multipath
  ioctls and device limits when there are no paths."

* tag 'dm-3.6-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/agk/linux-dm:
  dm verity: fix overflow check
  dm thin: fix discard support for data devices
  dm thin: tidy discard support
  dm: retain table limits when swapping to new table with no devices
  dm table: clear add_random unless all devices have it set
  dm: handle requests beyond end of device instead of using BUG_ON
  dm mpath: only retry ioctl when no paths if queue_if_no_path set
  dm thin: do not set discard_zeroes_data
2012-09-28 10:00:01 -07:00
Andrea Arcangeli
99a1300e1d thp: avoid VM_BUG_ON page_count(page) false positives in __collapse_huge_page_copy
Speculative cache pagecache lookups can elevate the refcount from
under us, so avoid the false positive. If the refcount is < 2 we'll be
notified by a VM_BUG_ON in put_page_testzero as there are two
put_page(src_page) in a row before returning from this function.

Signed-off-by: Andrea Arcangeli <aarcange@redhat.com>
Reviewed-by: Rik van Riel <riel@redhat.com>
Reviewed-by: Johannes Weiner <hannes@cmpxchg.org>
Cc: Hugh Dickins <hughd@google.com>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Petr Holasek <pholasek@redhat.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-09-28 08:38:09 -07:00
Joerg Roedel
0774e39255 iommu/amd: Fix wrong assumption in iommu-group specific code
The new IOMMU groups code in the AMD IOMMU driver makes the
assumption that there is a pci_dev struct available for all
device-ids listed in the IVRS ACPI table. Unfortunatly this
assumption is not true and so this code causes a NULL
pointer dereference at boot on some systems.

Fix it by making sure the given pointer is never NULL when
passed to the group specific code. The real fix is larger
and will be queued for v3.7.

Reported-by: Florian Dazinger <florian@dazinger.net>
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2012-09-28 16:14:44 +02:00
Wei Yongjun
df555b6653 netdev: octeon: fix return value check in octeon_mgmt_init_phy()
In case of error, the function of_phy_connect() returns NULL
pointer not ERR_PTR(). The IS_ERR() test in the return value
check should be replaced with NULL test.

dpatch engine is used to auto generate this patch.
(https://github.com/weiyj/dpatch)

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-09-28 01:18:32 -04:00
Linus Torvalds
63994137eb Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux
Pull drm fixes from Dave Airlie:
 "The three nouveau fixes quiten unneeded dmesg spam that people are
   seeing and pondering,

  The udl fix stops it from trying to driver monitors that are too big,
  where we get a black screen.

  And a vmware memory alloc problem."

* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
  drm/nvc0/fifo: ignore bits in PFIFO_INTR that aren't set in PFIFO_INTR_EN
  drm/udl: limit modes to the sku pixel limits.
  vmwgfx: corruption in vmw_event_fence_action_create()
  drm/nvc0/ltcg: mask off intr 0x10
  drm/nouveau: silence a debug message triggered by newer userspace
2012-09-27 16:51:14 -07:00
Linus Torvalds
a31fb6988a USB fixes for 3.6-rc7
Here are two USB bugfixes for your 3.6-rc7 tree.
 
 The OHCI fix has been reported a number of times and is a regression
 from 3.5, and the patch that causes the regression was on the way to the
 -stable trees before I was reminded (again) that this fix needed to get
 to your tree soon.
 
 The host controller bugfix was reported in older kernels as being pretty
 easy to trigger, and has been tested by Red Hat and their customers.
 
 Both have been in the usb-next branch in the -next tree for a while now,
 I just cherry-picked them out to get to you in time for the 3.6 release.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-3.6-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

Pull USB fixes from Greg Kroah-Hartman:
 "Here are two USB bugfixes for your 3.6-rc7 tree.

  The OHCI fix has been reported a number of times and is a regression
  from 3.5, and the patch that causes the regression was on the way to
  the -stable trees before I was reminded (again) that this fix needed
  to get to your tree soon.

  The host controller bugfix was reported in older kernels as being
  pretty easy to trigger, and has been tested by Red Hat and their
  customers.

  Both have been in the usb-next branch in the -next tree for a while
  now, I just cherry-picked them out to get to you in time for the 3.6
  release.

  Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>"

* tag 'usb-3.6-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
  USB: Fix race condition when removing host controllers
  USB: ohci-at91: fix null pointer in ohci_hcd_at91_overcurrent_irq
2012-09-27 16:49:15 -07:00
Daniel Mack
8dce30c891 ALSA: snd-usb: fix next_packet_size calls for pause case
Also fix the calls to next_packet_size() for the pause case. This was
missed in 245baf983 ("ALSA: snd-usb: fix calls to next_packet_size").

Signed-off-by: Daniel Mack <zonque@gmail.com>
Reviewed-by: Takashi Iwai <tiwai@suse.de>
Reported-and-tested-by: Christian Tefzer <ctrefzer@gmx.de>
Cc: stable@kernel.org
[ Taking directly because Takashi is on vacation  - Linus ]
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-09-27 16:46:15 -07:00
Linus Torvalds
9a7c590930 ASoC: Updates for 3.6
One small and obvious driver-specific fix.
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Merge tag 'asoc-3.6' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound

Pull ASoC update from Mark Brown:
 "One small and obvious driver-specific fix.

  Takashi is on vacation now so he asked me to send directly, it's a
  pretty bad bug with low regression risk."

* tag 'asoc-3.6' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound:
  ASoC: wm2000: Correct register size
2012-09-27 16:42:35 -07:00
Nicolas Dichtel
bc9259a8ba inetpeer: fix token initialization
When jiffies wraps around (for example, 5 minutes after the boot, see
INITIAL_JIFFIES) and peer has just been created, now - peer->rate_last can be
< XRLIM_BURST_FACTOR * timeout, so token is not set to the maximum value, thus
some icmp packets can be unexpectedly dropped.

Fix this case by initializing last_rate to 60 seconds in the past.

Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-09-27 19:27:39 -04:00
Narendra K
68b3f28c11 qlcnic: Fix scheduling while atomic bug
In the device close path, 'qlcnic_fw_destroy_ctx' and
'qlcnic_poll_rsp' call msleep. But  'qlcnic_fw_destroy_ctx' and
'qlcnic_poll_rsp' are called with 'adapter->tx_clean_lock' spin lock
held resulting in scheduling while atomic bug causing the following
trace.

I observed that the commit 012dc19a45
from John Fastabend addresses a similar issue in ixgbevf driver.
Adopting the same approach used in the commit, this patch uses mdelay
to address the issue.

[79884.999115] BUG: scheduling while atomic: ip/30846/0x00000002
[79885.005562] INFO: lockdep is turned off.
[79885.009958] Modules linked in: qlcnic fuse nf_conntrack_netbios_ns nf_conntrack_broadcast ipt_MASQUERADE bnep bluetooth rfkill ip6table_mangle ip6t_REJECT nf_conntrack_ipv6 nf_defrag_ipv6 ip6table_filter ip6_tables iptable_nat nf_nat iptable_mangle ipt_REJECT nf_conntrack_ipv4 nf_defrag_ipv4 xt_conntrack nf_conntrack iptable_filter ip_tables dcdbas coretemp kvm_intel kvm iTCO_wdt ixgbe iTCO_vendor_support crc32c_intel ghash_clmulni_intel nfsd microcode sb_edac pcspkr edac_core dca bnx2x shpchp auth_rpcgss nfs_acl lpc_ich mfd_core mdio lockd libcrc32c wmi acpi_pad acpi_power_meter sunrpc uinput sd_mod sr_mod cdrom crc_t10dif ahci libahci libata megaraid_sas usb_storage dm_mirror dm_region_hash dm_log dm_mod [last unloaded: qlcnic]
[79885.083608] Pid: 30846, comm: ip Tainted: G        W  O 3.6.0-rc7+ #1
[79885.090805] Call Trace:
[79885.093569]  [<ffffffff816764d8>] __schedule_bug+0x68/0x76
[79885.099699]  [<ffffffff8168358e>] __schedule+0x99e/0xa00
[79885.105634]  [<ffffffff81683929>] schedule+0x29/0x70
[79885.111186]  [<ffffffff81680def>] schedule_timeout+0x16f/0x350
[79885.117724]  [<ffffffff811afb7a>] ? init_object+0x4a/0x90
[79885.123770]  [<ffffffff8107c190>] ? __internal_add_timer+0x140/0x140
[79885.130873]  [<ffffffff81680fee>] schedule_timeout_uninterruptible+0x1e/0x20
[79885.138773]  [<ffffffff8107e830>] msleep+0x20/0x30
[79885.144159]  [<ffffffffa04c7fbf>] qlcnic_issue_cmd+0xef/0x290 [qlcnic]
[79885.151478]  [<ffffffffa04c8265>] qlcnic_fw_cmd_destroy_rx_ctx+0x55/0x90 [qlcnic]
[79885.159868]  [<ffffffffa04c92fd>] qlcnic_fw_destroy_ctx+0x2d/0xa0 [qlcnic]
[79885.167576]  [<ffffffffa04bf2ed>] __qlcnic_down+0x11d/0x180 [qlcnic]
[79885.174708]  [<ffffffffa04bf6f8>] qlcnic_close+0x18/0x20 [qlcnic]
[79885.181547]  [<ffffffff8153b4c5>] __dev_close_many+0x95/0xe0
[79885.187899]  [<ffffffff8153b548>] __dev_close+0x38/0x50
[79885.193761]  [<ffffffff81545101>] __dev_change_flags+0xa1/0x180
[79885.200419]  [<ffffffff81545298>] dev_change_flags+0x28/0x70
[79885.206779]  [<ffffffff815531b8>] do_setlink+0x378/0xa00
[79885.212731]  [<ffffffff81354fe1>] ? nla_parse+0x31/0xe0
[79885.218612]  [<ffffffff815558ee>] rtnl_newlink+0x37e/0x560
[79885.224768]  [<ffffffff812cfa19>] ? selinux_capable+0x39/0x50
[79885.231217]  [<ffffffff812cbf98>] ? security_capable+0x18/0x20
[79885.237765]  [<ffffffff81555114>] rtnetlink_rcv_msg+0x114/0x2f0
[79885.244412]  [<ffffffff81551f87>] ? rtnl_lock+0x17/0x20
[79885.250280]  [<ffffffff81551f87>] ? rtnl_lock+0x17/0x20
[79885.256148]  [<ffffffff81555000>] ? __rtnl_unlock+0x20/0x20
[79885.262413]  [<ffffffff81570fc1>] netlink_rcv_skb+0xa1/0xb0
[79885.268661]  [<ffffffff81551fb5>] rtnetlink_rcv+0x25/0x40
[79885.274727]  [<ffffffff815708bd>] netlink_unicast+0x19d/0x220
[79885.281146]  [<ffffffff81570c45>] netlink_sendmsg+0x305/0x3f0
[79885.287595]  [<ffffffff8152b188>] ? sock_update_classid+0x148/0x2e0
[79885.294650]  [<ffffffff81525c2c>] sock_sendmsg+0xbc/0xf0
[79885.300600]  [<ffffffff8152600c>] __sys_sendmsg+0x3ac/0x3c0
[79885.306853]  [<ffffffff8109be23>] ? up_read+0x23/0x40
[79885.312510]  [<ffffffff816896cc>] ? do_page_fault+0x2bc/0x570
[79885.318968]  [<ffffffff81191854>] ? sys_brk+0x44/0x150
[79885.324715]  [<ffffffff811c458c>] ? fget_light+0x24c/0x520
[79885.330875]  [<ffffffff815286f9>] sys_sendmsg+0x49/0x90
[79885.336707]  [<ffffffff8168e429>] system_call_fastpath+0x16/0x1b

Signed-off-by: Narendra K <narendra_k@dell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-09-27 19:24:52 -04:00
Neil Horman
64f605c774 bnx2: Clean up remaining iounmap
commit c0357e975a modified bnx2 to switch from
using ioremap/iounmap to pci_iomap/pci_iounmap.  They missed a spot in the error
path of bnx2_init_one though.  This patch just cleans that up.

Signed-off-by: Neil Horman <nhorman@tuxdriver.com>
CC: Michael Chan <mcan@broadcom.com>
CC: "David S. Miller" <davem@davemloft.net>
Acked-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-09-27 19:18:50 -04:00
Linus Torvalds
e556cb3e33 arm-soc: one more bug fix for 3.6
Here's a bugfix for orion5x. Without this, PCI doesn't initialize properly
 because of too small coherent pool to cover the allocations needed.
 
 A similar fix has already been done on kirkwood.
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Merge tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull one more arm-soc bugfix from Olof Johansson:
 "Here's a bugfix for orion5x.  Without this, PCI doesn't initialize
  properly because of too small coherent pool to cover the allocations
  needed.

  A similar fix has already been done on kirkwood."

* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
  ARM: Orion5x: Fix too small coherent pool.
2012-09-27 15:47:24 -07:00
Linus Torvalds
b56adb54e8 Merge branch 'fixes-for-3.6' of git://git.linaro.org/people/mszyprowski/linux-dma-mapping
Pull ARM dma-mapping fix from Marek Szyprowski:
 "This patch fixes a potential memory leak in the ARM dma-mapping code."

* 'fixes-for-3.6' of git://git.linaro.org/people/mszyprowski/linux-dma-mapping:
  ARM: dma-mapping: Fix potential memory leak in atomic_pool_init()
2012-09-27 15:46:04 -07:00
Linus Torvalds
39618435a0 A lates GPIO fix: Roland Stigge found a problem in the LPC32xx
driver where a callback ignores one of its arguments. It needs
 to go into stable too so sending this upstream immediately.
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Merge tag 'gpio-fixes-v3.6' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio

Pull GPIO fix from Linus Walleij:
 "A late GPIO fix: Roland Stigge found a problem in the LPC32xx driver
  where a callback ignores one of its arguments.  It needs to go into
  stable too so sending this upstream immediately."

* tag 'gpio-fixes-v3.6' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio:
  gpio-lpc32xx: Fix value handling of gpio_direction_output()
2012-09-27 15:45:20 -07:00
Linus Torvalds
d1d4bb9cf2 2 bugfixes for md in 3.6
One (missing spinlock init) was only introduced recently.
 The other has been present as long as raid10 has been supported,
 so is tagged for -stable.
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Merge tag 'md-3.6-fixes' of git://neil.brown.name/md

Pull two md bugfixes from NeilBrown:
 "One (missing spinlock init) was only introduced recently.  The other
  has been present as long as raid10 has been supported, so is tagged
  for -stable."

* tag 'md-3.6-fixes' of git://neil.brown.name/md:
  md/raid10: fix "enough" function for detecting if array is failed.
  md/raid5: add missing spin_lock_init.
2012-09-27 15:44:31 -07:00