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ff44c6e36d
linux/fs/btrfs
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Josef Bacik ff44c6e36d Btrfs: do not hold the write_lock on the extent tree while logging 
Dave Sterba pointed out a sleeping while atomic bug while doing fsync.  This
is because I'm an idiot and didn't realize that rwlock's were spin locks, so
we've been holding this thing while doing allocations and such which is not
good.  This patch fixes this by dropping the write lock before we do
anything heavy and re-acquire it when it is done.  We also need to take a
ref on the em's in case their corresponding pages are evicted and mark them
as being logged so that releasepage does not remove them and doesn't remove
them from our local list.  Thanks,

Reported-by: Dave Sterba <dave@jikos.cz>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
2012-10-04 09:39:58 -04:00
..
acl.c Btrfs: cache no acl on new inodes 2012-05-30 10:23:27 -04:00
async-thread.c Btrfs: call the ordered free operation without any locks held 2012-07-25 16:15:07 -04:00
async-thread.h btrfs: return void in functions without error conditions 2012-03-22 01:45:34 +01:00
backref.c Btrfs: use larger limit for translation of logical to inode 2012-10-01 15:19:19 -04:00
backref.h Btrfs: fix a bug in parsing return value in logical resolve 2012-10-01 15:19:18 -04:00
btrfs_inode.h Btrfs: fix a bug in checking whether a inode is already in log 2012-10-01 15:19:06 -04:00
check-integrity.c Btrfs: introduce subvol uuids and times 2012-07-25 23:28:38 +02:00
check-integrity.h Btrfs: add optional integrity check code 2011-12-21 19:14:09 +01:00
compat.h
compression.c Btrfs: barrier before waitqueue_active 2012-08-28 16:53:33 -04:00
compression.h btrfs: return void in functions without error conditions 2012-03-22 01:45:34 +01:00
ctree.c Btrfs: fix btrfs send for inline items and compression 2012-10-01 15:19:00 -04:00
ctree.h Btrfs: cleanup fs_info->hashers 2012-10-04 09:39:57 -04:00
delayed-inode.c btrfs: polish names of kmem caches 2012-10-01 15:19:16 -04:00
delayed-inode.h Btrfs: flush delayed inodes if we're short on space 2012-07-23 15:41:40 -04:00
delayed-ref.c Btrfs: allow delayed refs to be merged 2012-08-28 16:53:38 -04:00
delayed-ref.h Btrfs: allow delayed refs to be merged 2012-08-28 16:53:38 -04:00
dir-item.c btrfs: replace many BUG_ONs with proper error handling 2012-03-22 11:52:54 +01:00
disk-io.c Btrfs: cleanup fs_info->hashers 2012-10-04 09:39:57 -04:00
disk-io.h Btrfs: remove superblock writing after fatal error 2012-08-28 16:53:38 -04:00
export.c ->encode_fh() API change 2012-05-29 23:28:33 -04:00
export.h
extent_io.c btrfs: Kill some bi_idx references 2012-10-01 15:19:21 -04:00
extent_io.h Btrfs: use flag EXTENT_DEFRAG for snapshot-aware defrag 2012-10-01 15:19:15 -04:00
extent_map.c Btrfs: do not hold the write_lock on the extent tree while logging 2012-10-04 09:39:58 -04:00
extent_map.h Btrfs: do not hold the write_lock on the extent tree while logging 2012-10-04 09:39:58 -04:00
extent-tree.c Btrfs: kill obsolete arguments in btrfs_wait_ordered_extents 2012-10-04 09:39:57 -04:00
file-item.c Btrfs: fix gcc warnings for 32bit compiles 2012-10-01 15:19:01 -04:00
file.c Revert "Btrfs: do not do filemap_write_and_wait_range in fsync" 2012-10-01 15:19:22 -04:00
free-space-cache.c Btrfs: using for_each_set_bit_from to simplify the code 2012-10-04 09:39:55 -04:00
free-space-cache.h btrfs: remove all unused functions 2011-05-06 12:34:03 +02:00
hash.h
inode-item.c Merge branch 'error-handling' into for-linus 2012-03-28 20:31:37 -04:00
inode-map.c Btrfs: show useful info in space reservation tracepoint 2012-03-29 09:57:44 -04:00
inode-map.h Btrfs: Support reading/writing on disk free ino cache 2011-04-25 16:46:11 +08:00
inode.c btrfs: return EPERM upon rmdir on a subvolume 2012-10-04 09:39:56 -04:00
ioctl.c Btrfs: use larger limit for translation of logical to inode 2012-10-01 15:19:19 -04:00
ioctl.h Merge branch 'send-v2' of git://github.com/ablock84/linux-btrfs into for-linus 2012-07-25 19:19:10 -04:00
Kconfig Btrfs: add config option to enable btrfs integrity check 2011-12-21 19:14:16 +01:00
locking.c Btrfs: fix a misplaced address operator in a condition 2012-08-28 16:53:23 -04:00
locking.h btrfs: return void in functions without error conditions 2012-03-22 01:45:34 +01:00
lzo.c btrfs: remove the second argument of k[un]map_atomic() 2012-03-20 21:48:21 +08:00
Makefile Merge branch 'send-v2' of git://github.com/ablock84/linux-btrfs into for-linus 2012-07-25 19:19:10 -04:00
ordered-data.c Btrfs: kill obsolete arguments in btrfs_wait_ordered_extents 2012-10-04 09:39:57 -04:00
ordered-data.h Btrfs: kill obsolete arguments in btrfs_wait_ordered_extents 2012-10-04 09:39:57 -04:00
orphan.c btrfs: replace many BUG_ONs with proper error handling 2012-03-22 11:52:54 +01:00
print-tree.c Btrfs: read device stats on mount, write modified ones during commit 2012-05-30 10:23:41 -04:00
print-tree.h
qgroup.c Btrfs: check return value of ulist_alloc() properly 2012-10-01 15:19:14 -04:00
rcu-string.h Btrfs: use rcu to protect device->name 2012-06-14 21:29:16 -04:00
reada.c Btrfs: set ioprio of scrub readahead to idle 2012-05-30 10:23:43 -04:00
relocation.c Btrfs: kill obsolete arguments in btrfs_wait_ordered_extents 2012-10-04 09:39:57 -04:00
root-tree.c Btrfs: fix some endian bugs handling the root times 2012-08-28 16:53:26 -04:00
scrub.c btrfs: Kill some bi_idx references 2012-10-01 15:19:21 -04:00
send.c Btrfs: write_buf is now callable outside send.c 2012-10-04 09:39:55 -04:00
send.h Btrfs: write_buf is now callable outside send.c 2012-10-04 09:39:55 -04:00
struct-funcs.c Btrfs: rewrite BTRFS_SETGET_FUNCS 2012-07-23 16:28:06 -04:00
super.c Btrfs: kill obsolete arguments in btrfs_wait_ordered_extents 2012-10-04 09:39:57 -04:00
sysfs.c btrfs: Remove unused sysfs code 2011-06-17 14:54:18 -04:00
transaction.c Btrfs: fix race with freeze and free space inodes 2012-10-04 09:39:58 -04:00
transaction.h Btrfs: fix race in sync and freeze again 2012-10-04 09:39:56 -04:00
tree-defrag.c btrfs: drop unused parameter from btrfs_release_path 2011-05-02 13:57:22 +02:00
tree-log.c Btrfs: do not hold the write_lock on the extent tree while logging 2012-10-04 09:39:58 -04:00
tree-log.h btrfs: return void in functions without error conditions 2012-03-22 01:45:34 +01:00
ulist.c Btrfs: make aux field of ulist 64 bit 2012-10-01 15:18:53 -04:00
ulist.h Btrfs: make aux field of ulist 64 bit 2012-10-01 15:18:53 -04:00
version.h
volumes.c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs 2012-08-29 11:36:22 -07:00
volumes.h Btrfs: revert checksum error statistic which can cause a BUG() 2012-08-28 16:53:39 -04:00
xattr.c Btrfs: use i_version instead of our own sequence 2012-05-30 10:23:27 -04:00
xattr.h fs/vfs/security: pass last path component to LSM on inode creation 2011-02-01 11:12:29 -05:00
zlib.c btrfs: remove the second argument of k[un]map_atomic() 2012-03-20 21:48:21 +08:00