Chris Mason e688b7252f Btrfs: fix extent pinning bugs in the tree log ... The tree log had two important bugs that could cause corruptions after a crash. Sometimes we were allowing tree log blocks to be reused after the tree log was committed but before the transaction commit was done. This allowed a future metadata write to overwrite the tree log data. It is fixed by adding a new variant of freeing reserved extents that always pins them. Credit goes to Stefan Behrens and Arne Jansen for many many hours spent tracking this bug down. During tree log replay, we do a pass through the tree log and pin all the extents we find. This makes sure the replay code won't go in and use any of those blocks for new allocations during replay. The problem is the free space cache isn't honoring these pinned extents. So the allocator can end up handing them out, leading to all kinds of problems during replay. The fix here is to force any free space cache to load while we pin the extents, and then to make sure we remove the pinned extents from the free space rbtree. Signed-off-by: Chris Mason <chris.mason@oracle.com> Reported-by: Stefan Behrens <sbehrens@giantdisaster.de>		2011-11-06 03:03:48 -05:00
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acl.c	Btrfs: fix return value of btrfs_get_acl()	2011-10-20 18:10:47 +02:00
async-thread.c	Btrfs: don't walk around with task->state != TASK_RUNNING	2010-05-25 10:34:58 -04:00
async-thread.h
btrfs_inode.h	Btrfs: calculate checksum space correctly	2011-10-19 15:12:31 -04:00
compat.h
compression.c	Btrfs: check the nodatasum flag when writing compressed files	2011-08-01 14:30:46 -04:00
compression.h	btrfs: rename variables clashing with global function names	2011-05-02 13:57:19 +02:00
ctree.c	Btrfs: fix array bound checking	2011-10-20 18:10:41 +02:00
ctree.h	Btrfs: fix extent pinning bugs in the tree log	2011-11-06 03:03:48 -05:00
delayed-inode.c	Btrfs: switch the btrfs tree locks to reader/writer	2011-07-27 12:46:46 -04:00
delayed-inode.h	atomic: use <linux/atomic.h>	2011-07-26 16:49:47 -07:00
delayed-ref.c	btrfs: remove old unused commented out code	2011-05-06 12:34:10 +02:00
delayed-ref.h	btrfs: remove all unused functions	2011-05-06 12:34:03 +02:00
dir-item.c	Btrfs: remove redundant code for dir item lookup	2011-08-01 14:30:48 -04:00
disk-io.c	Btrfs: allow us to overcommit our enospc reservations	2011-10-19 15:12:50 -04:00
disk-io.h	Btrfs: make a lockdep class for each root	2011-07-27 12:46:46 -04:00
export.c	Merge branch 'ino-alloc' of git://repo.or.cz/linux-btrfs-devel into inode_numbers	2011-05-21 09:27:38 -04:00
export.h
extent_io.c	Btrfs: do not set EXTENT_DIRTY along with EXTENT_DELALLOC	2011-10-20 18:10:45 +02:00
extent_io.h	Btrfs: stop using write_one_page	2011-10-19 15:12:48 -04:00
extent_map.c	Btrfs: clean up code for merging extent maps	2011-08-01 14:30:50 -04:00
extent_map.h	btrfs: drop gfp parameter from alloc_extent_map	2011-05-02 13:57:21 +02:00
extent-tree.c	Btrfs: fix extent pinning bugs in the tree log	2011-11-06 03:03:48 -05:00
file-item.c	Btrfs: skip locking if searching the commit root in csum lookup	2011-09-11 10:52:24 -04:00
file.c	Btrfs: use the inode's mapping mask for allocating pages	2011-10-19 15:12:45 -04:00
free-space-cache.c	Btrfs: make sure btrfs_remove_free_space doesn't leak EAGAIN	2011-11-06 03:03:47 -05:00
free-space-cache.h	btrfs: remove all unused functions	2011-05-06 12:34:03 +02:00
hash.h
inode-item.c	Btrfs: BUG_ON is deleted from the caller of btrfs_truncate_item & btrfs_extend_item	2011-05-23 13:24:39 -04:00
inode-map.c	Btrfs: handle enospc accounting for free space inodes	2011-10-19 15:12:42 -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: fix direct-io vs nodatacow	2011-10-20 18:10:44 +02:00
ioctl.c	Merge branch 'hotfixes-20111024/josef/for-chris' into btrfs-next-stable	2011-10-24 14:47:58 +02:00
ioctl.h	Btrfs: add mount -o auto_defrag	2011-05-26 17:52:15 -04:00
Kconfig	btrfs: Add lzo compression support	2010-12-22 23:15:47 +08:00
locking.c	Btrfs: switch the btrfs tree locks to reader/writer	2011-07-27 12:46:46 -04:00
locking.h	Btrfs: switch the btrfs tree locks to reader/writer	2011-07-27 12:46:46 -04:00
lzo.c	Btrfs: Avoid accessing unmapped kernel address	2011-02-16 15:37:58 -05:00
Makefile	Btrfs: make acl functions really no-op if acl is not enabled	2011-08-01 14:30:48 -04:00
ordered-data.c	Btrfs: add initial tracepoint support for btrfs	2011-03-28 05:37:33 -04:00
ordered-data.h	btrfs: Allow to add new compression algorithm	2010-12-22 23:15:45 +08:00
orphan.c	Btrfs: fixup return code for btrfs_del_orphan_item	2010-12-09 13:57:15 -05:00
print-tree.c	btrfs: fix oops on failure path	2011-10-20 18:10:50 +02:00
print-tree.h
relocation.c	btrfs: check file extent backref offset underflow	2011-10-20 18:10:31 +02:00
root-tree.c	btrfs: make btrfs_set_root_node void	2011-08-01 14:30:44 -04:00
scrub.c	btrfs: remove unneeded includes from scrub.c	2011-06-10 14:59:52 +02:00
struct-funcs.c	Btrfs: stop using highmem for extent_buffers	2011-07-27 12:46:45 -04:00
super.c	btrfs: do not allow mounting non-subvolumes via subvol option	2011-10-24 14:43:25 +02:00
sysfs.c	btrfs: Remove unused sysfs code	2011-06-17 14:54:18 -04:00
transaction.c	Btrfs: seperate out btrfs_block_rsv_check out into 2 different functions	2011-10-19 15:12:59 -04:00
transaction.h	Merge branch 'for-chris' of	2011-05-28 07:00:39 -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: fix extent pinning bugs in the tree log	2011-11-06 03:03:48 -05:00
tree-log.h	btrfs: remove unused function prototypes	2011-05-04 14:01:26 +02:00
version.h
volumes.c	Btrfs: close all bdevs on mount failure	2011-10-20 18:20:57 +02:00
volumes.h	Btrfs: detect wether a device supports discard	2011-08-16 21:09:15 -04:00
xattr.c	Btrfs: fix regression in re-setting a large xattr	2011-10-19 15:12:56 -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	zlib: slim down zlib_deflate() workspace when possible	2011-03-22 17:44:17 -07:00