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cd023e7b17
linux/fs/btrfs
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Josef Bacik cd023e7b17 Btrfs: merge contigous regions when loading free space cache 
When we write out the free space cache we will write out everything that is
in our in memory tree, and then we will just walk the pinned extents tree
and write anything we see there.  The problem with this is that during
normal operations the pinned extents will be merged back into the free space
tree normally, and then we can allocate space from the merged areas and
commit them to the tree log.  If we crash and replay the tree log we will
crash again because the tree log will try to free up space from what looks
like 2 seperate but contiguous entries, since one entry is from the original
free space cache and the other was a pinned extent that was merged back.  To
fix this we just need to walk the free space tree after we load it and merge
contiguous entries back together.  This will keep the tree log stuff from
breaking and it will make the allocator behave more nicely.  Thanks,

Signed-off-by: Josef Bacik <josef@redhat.com>
2012-05-30 10:23:36 -04:00
..
acl.c Btrfs: cache no acl on new inodes 2012-05-30 10:23:27 -04:00
async-thread.c btrfs: return void in functions without error conditions 2012-03-22 01:45:34 +01:00
async-thread.h btrfs: return void in functions without error conditions 2012-03-22 01:45:34 +01:00
backref.c Btrfs: add missing read locks in backref.c 2012-04-18 19:22:23 +02:00
backref.h Btrfs: fix regression in scrub path resolving 2012-03-27 14:51:21 +02:00
btrfs_inode.h Btrfs: use i_version instead of our own sequence 2012-05-30 10:23:27 -04:00
check-integrity.c Btrfs: change integrity checker to support big blocks 2012-05-11 10:56:40 -04:00
check-integrity.h Btrfs: add optional integrity check code 2011-12-21 19:14:09 +01:00
compat.h
compression.c Merge branch 'for-linus-min' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs 2012-04-13 19:41:27 -07:00
compression.h btrfs: return void in functions without error conditions 2012-03-22 01:45:34 +01:00
ctree.c btrfs/ctree.c: remove the unnecessary 'return -1;' at the end of bin_search 2012-05-11 10:56:37 -04:00
ctree.h Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs 2012-04-28 09:30:07 -07:00
delayed-inode.c Btrfs: use i_version instead of our own sequence 2012-05-30 10:23:27 -04:00
delayed-inode.h atomic: use <linux/atomic.h> 2011-07-26 16:49:47 -07:00
delayed-ref.c btrfs: return void in functions without error conditions 2012-03-22 01:45:34 +01:00
delayed-ref.h Btrfs: add waitqueue instead of doing busy waiting for more delayed refs 2012-01-04 16:12:48 +01:00
dir-item.c btrfs: replace many BUG_ONs with proper error handling 2012-03-22 11:52:54 +01:00
disk-io.c Btrfs: finish ordered extents in their own thread 2012-05-30 10:23:33 -04:00
disk-io.h Btrfs: avoid sleeping in verify_parent_transid while atomic 2012-05-06 07:23:47 -04:00
export.c btrfs: replace many BUG_ONs with proper error handling 2012-03-22 11:52:54 +01:00
export.h
extent_io.c Btrfs: use fastpath in extent state ops as much as possible 2012-05-30 10:23:34 -04:00
extent_io.h Btrfs: finish ordered extents in their own thread 2012-05-30 10:23:33 -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: fix structs where bitfields and spinlock/atomic share 8B word 2012-02-15 16:40:25 +01:00
extent-tree.c Btrfs: cleanup: use consistent lock naming 2012-05-11 10:56:41 -04:00
file-item.c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs 2012-03-30 12:44:29 -07:00
file.c Btrfs: do not do filemap_write_and_wait_range in fsync 2012-05-30 10:23:29 -04:00
free-space-cache.c Btrfs: merge contigous regions when loading free space cache 2012-05-30 10:23:36 -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: finish ordered extents in their own thread 2012-05-30 10:23:33 -04:00
ioctl.c Btrfs: do not do balance in readonly mode 2012-05-30 10:23:35 -04:00
ioctl.h btrfs: Fix mismatching struct members in ioctl.h 2012-05-04 15:16:06 -04:00
Kconfig Btrfs: add config option to enable btrfs integrity check 2011-12-21 19:14:16 +01:00
locking.c btrfs: return void in functions without error conditions 2012-03-22 01:45:34 +01:00
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 'integrity-check-patch-v2' of git://btrfs.giantdisaster.de/git/btrfs into integration 2012-01-16 15:27:58 -05:00
ordered-data.c Btrfs: finish ordered extents in their own thread 2012-05-30 10:23:33 -04:00
ordered-data.h Btrfs: finish ordered extents in their own thread 2012-05-30 10:23:33 -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: fix oops on failure path 2011-10-20 18:10:50 +02:00
print-tree.h
reada.c btrfs: don't add both copies of DUP to reada extent tree 2012-04-18 19:12:44 +02:00
relocation.c Btrfs: Fix space checking during fs resize 2012-04-27 13:55:14 -04:00
root-tree.c btrfs: replace many BUG_ONs with proper error handling 2012-03-22 11:52:54 +01:00
scrub.c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs 2012-05-06 10:20:07 -07:00
struct-funcs.c Btrfs: add the ability to cache a pointer into the eb 2012-03-26 17:04:23 -04:00
super.c Btrfs: avoid buffer overrun in mount option handling 2012-05-30 10:23:32 -04:00
sysfs.c btrfs: Remove unused sysfs code 2011-06-17 14:54:18 -04:00
transaction.c btrfs: add missing unlocks to transaction abort paths 2012-04-18 19:22:14 +02:00
transaction.h btrfs: enhance transaction abort infrastructure 2012-03-22 01:45:40 +01:00
tree-defrag.c btrfs: drop unused parameter from btrfs_release_path 2011-05-02 13:57:22 +02:00
tree-log.c Btrfs: avoid sleeping in verify_parent_transid while atomic 2012-05-06 07:23:47 -04:00
tree-log.h btrfs: return void in functions without error conditions 2012-03-22 01:45:34 +01:00
ulist.c Fix minor type issues 2012-05-30 10:23:30 -04:00
ulist.h Fix minor type issues 2012-05-30 10:23:30 -04:00
version.h
volumes.c Btrfs: fix wrong error returned by adding a device 2012-05-30 10:23:34 -04:00
volumes.h btrfs: return void in functions without error conditions 2012-03-22 01:45:34 +01:00
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