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569e0f358c
linux/fs/btrfs
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Josef Bacik 569e0f358c Btrfs: place ordered operations on a per transaction list 
Miao made the ordered operations stuff run async, which introduced a
deadlock where we could get somebody (sync) racing in and committing the
transaction while a commit was already happening.  The new committer would
try and flush ordered operations which would hang waiting for the commit to
finish because it is done asynchronously and no longer inherits the callers
trans handle.  To fix this we need to make the ordered operations list a per
transaction list.  We can get new inodes added to the ordered operation list
by truncating them and then having another process writing to them, so this
makes it so that anybody trying to add an ordered operation _must_ start a
transaction in order to add itself to the list, which will keep new inodes
from getting added to the ordered operations list after we start committing.
This should fix the deadlock and also keeps us from doing a lot more work
than we need to during commit.  Thanks,

Signed-off-by: Josef Bacik <jbacik@fusionio.com>
2013-02-20 12:59:57 -05:00
..
acl.c Btrfs: skip adding an acl attribute if we don't have to 2012-12-16 20:46:15 -05:00
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: merge inode_list in __merge_refs 2012-12-12 17:15:27 -05:00
backref.h Btrfs: move fs/btrfs/ioctl.h to include/uapi/linux/btrfs.h 2013-02-20 09:37:28 -05:00
btrfs_inode.h Btrfs: serialize unlocked dio reads with truncate 2013-02-20 12:59:47 -05:00
check-integrity.c Btrfs: fix race in check-integrity caused by usage of bitfield 2012-12-16 20:46:13 -05:00
check-integrity.h Btrfs: add optional integrity check code 2011-12-21 19:14:09 +01:00
compat.h
compression.c Btrfs: handle errors from btrfs_map_bio() everywhere 2012-12-12 17:15:40 -05:00
compression.h btrfs: return void in functions without error conditions 2012-03-22 01:45:34 +01:00
ctree.c btrfs: remove cache only arguments from defrag path 2013-02-20 12:59:36 -05:00
ctree.h Btrfs: place ordered operations on a per transaction list 2013-02-20 12:59:57 -05:00
delayed-inode.c btrfs: remove unused "item" in btrfs_insert_delayed_item() 2013-02-20 12:59:23 -05:00
delayed-inode.h Btrfs: fix lots of orphan inodes when the space is not enough 2013-02-20 09:36:39 -05:00
delayed-ref.c Btrfs: make delayed ref lock logic more readable 2013-02-20 09:36:41 -05:00
delayed-ref.h Btrfs: make delayed ref lock logic more readable 2013-02-20 09:36:41 -05:00
dev-replace.c Btrfs: check the return value of btrfs_start_delalloc_inodes() 2013-02-20 09:37:21 -05:00
dev-replace.h Btrfs: add new sources for device replace code 2012-12-12 17:15:41 -05:00
dir-item.c Btrfs: fix hash overflow handling 2012-12-17 14:48:21 -05:00
disk-io.c Btrfs: place ordered operations on a per transaction list 2013-02-20 12:59:57 -05:00
disk-io.h Btrfs: cleanup for btrfs_btree_balance_dirty 2012-12-12 17:15:28 -05:00
export.c ->encode_fh() API change 2012-05-29 23:28:33 -04:00
export.h
extent_io.c Btrfs: remove unused extent io tree ops V2 2013-02-20 12:59:52 -05:00
extent_io.h Btrfs: remove unused extent io tree ops V2 2013-02-20 12:59:52 -05:00
extent_map.c Btrfs: do not merge logged extents if we've removed them from the tree 2013-02-05 16:09:03 -05:00
extent_map.h Btrfs: do not allow logged extents to be merged or removed 2013-01-24 12:49:48 -05:00
extent-tree.c btrfs: put some enospc messages under enospc_debug 2013-02-20 12:59:49 -05:00
file-item.c Btrfs: extend the checksum item as much as possible 2013-02-20 12:59:37 -05:00
file.c Btrfs: place ordered operations on a per transaction list 2013-02-20 12:59:57 -05:00
free-space-cache.c Btrfs: relax the block group size limit for bitmaps 2013-02-20 12:59:55 -05:00
free-space-cache.h btrfs: remove all unused functions 2011-05-06 12:34:03 +02:00
hash.h btrfs: extended inode refs 2012-10-09 09:14:45 -04:00
inode-item.c btrfs: extended inode refs 2012-10-09 09:14:45 -04:00
inode-map.c Btrfs: improve the noflush reservation 2012-12-11 13:31:31 -05:00
inode-map.h Btrfs: Support reading/writing on disk free ino cache 2011-04-25 16:46:11 +08:00
inode.c Btrfs: implement unlocked dio write 2013-02-20 12:59:48 -05:00
ioctl.c btrfs: add cancellation points to defrag 2013-02-20 12:59:51 -05:00
Kconfig Btrfs: add config option to enable btrfs integrity check 2011-12-21 19:14:16 +01:00
locking.c Btrfs: save us a read_lock 2013-02-20 09:37:17 -05:00
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 Btrfs: add new sources for device replace code 2012-12-12 17:15:41 -05:00
math.h Btrfs: cleanup duplicated division functions 2012-12-11 13:31:30 -05:00
ordered-data.c Btrfs: place ordered operations on a per transaction list 2013-02-20 12:59:57 -05:00
ordered-data.h Btrfs: place ordered operations on a per transaction list 2013-02-20 12:59:57 -05:00
orphan.c btrfs: replace many BUG_ONs with proper error handling 2012-03-22 11:52:54 +01:00
print-tree.c btrfs: add missing break in btrfs_print_leaf() 2013-02-20 12:59:20 -05:00
print-tree.h
qgroup.c Btrfs: move fs/btrfs/ioctl.h to include/uapi/linux/btrfs.h 2013-02-20 09:37:28 -05:00
rcu-string.h Btrfs: use rcu to protect device->name 2012-06-14 21:29:16 -04:00
reada.c Btrfs: introduce GET_READ_MIRRORS functionality for btrfs_map_block() 2012-12-12 17:15:43 -05:00
relocation.c Btrfs: use wrapper page_offset 2013-02-20 09:36:43 -05:00
root-tree.c Btrfs: rename root_times_lock to root_item_lock 2012-12-16 20:46:21 -05:00
scrub.c Btrfs: use bit operation for ->fs_state 2013-02-20 12:59:09 -05:00
send.c btrfs: add "no file data" flag to btrfs send ioctl 2013-02-20 12:59:39 -05:00
send.h btrfs: add "no file data" flag to btrfs send ioctl 2013-02-20 12:59:39 -05:00
struct-funcs.c Btrfs: rewrite BTRFS_SETGET_FUNCS 2012-07-23 16:28:06 -04:00
super.c btrfs: fix varargs in __btrfs_std_error 2013-02-20 12:59:22 -05:00
sysfs.c btrfs: Remove unused sysfs code 2011-06-17 14:54:18 -04:00
transaction.c Btrfs: place ordered operations on a per transaction list 2013-02-20 12:59:57 -05:00
transaction.h Btrfs: place ordered operations on a per transaction list 2013-02-20 12:59:57 -05:00
tree-defrag.c btrfs: remove cache only arguments from defrag path 2013-02-20 12:59:36 -05:00
tree-log.c btrfs: remove cache only arguments from defrag path 2013-02-20 12:59:36 -05:00
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 Btrfs: allow for selecting only completely empty chunks 2013-02-20 12:59:54 -05:00
volumes.h Btrfs: move fs/btrfs/ioctl.h to include/uapi/linux/btrfs.h 2013-02-20 09:37:28 -05:00
xattr.c Btrfs: only log the inode item if we can get away with it 2012-12-16 20:46:21 -05:00
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: fix message printing 2012-10-09 09:19:57 -04:00