Wang Shilong e2eca69dc6 Btrfs: fix wrong extent mapping for DirectIO ... btrfs_next_leaf() will use current leaf's last key to search and then return a bigger one. So it may still return a file extent item that is smaller than expected value and we will get an overflow here for @em->len. This is easy to reproduce for Btrfs Direct writting, it did not cause any problem, because writting will re-insert right mapping later. However, by hacking code to make DIO support compression, wrong extent mapping is kept and it encounter merging failure(EEXIST) quickly. Fix this problem by looping to find next file extent item that is bigger than @start or we could not find anything more. Signed-off-by: Wang Shilong <wangsl.fnst@cn.fujitsu.com> Reviewed-by: David Sterba <dsterba@suse.cz> Signed-off-by: Chris Mason <clm@fb.com>		2014-08-19 08:52:13 -07:00
..
tests	Btrfs: fix qgroups sanity test crash or hang	2014-06-13 09:52:24 -07:00
acl.c	btrfs: remove useless ACL check	2014-06-09 17:20:42 -07:00
async-thread.c	btrfs: fix crash in remount(thread_pool=) case	2014-04-07 10:41:52 -07:00
async-thread.h	btrfs: Add trace for btrfs_workqueue alloc/destroy	2014-03-20 17:15:28 -07:00
backref.c	Btrfs: Fix memory corruption by ulist_add_merge() on 32bit arch	2014-08-15 07:43:19 -07:00
backref.h	Btrfs: fix scrub_print_warning to handle skinny metadata extents	2014-06-09 17:21:17 -07:00
btrfs_inode.h	btrfs: disable strict file flushes for renames and truncates	2014-08-15 07:43:42 -07:00
check-integrity.c	btrfs: check_int: propagate out-of-memory error upwards	2014-06-09 17:20:21 -07:00
check-integrity.h	block: submit_bio_wait() conversions	2013-11-24 16:33:41 -07:00
compression.c	btrfs compression: reuse recently used workspace	2014-06-28 13:48:46 -07:00
compression.h	btrfs: make static code static & remove dead code	2013-05-06 15:55:23 -04:00
ctree.c	Btrfs: __btrfs_mod_ref should always use no_quota	2014-08-15 07:43:11 -07:00
ctree.h	Btrfs: __btrfs_mod_ref should always use no_quota	2014-08-15 07:43:11 -07:00
delayed-inode.c	btrfs: free delayed node outside of root->inode_lock	2014-06-09 17:21:08 -07:00
delayed-inode.h	Btrfs: introduce the delayed inode ref deletion for the single link inode	2014-01-28 13:20:09 -08:00
delayed-ref.c	Btrfs: rework qgroup accounting	2014-06-09 17:20:48 -07:00
delayed-ref.h	Btrfs: rework qgroup accounting	2014-06-09 17:20:48 -07:00
dev-replace.c	btrfs: dev replace should replace the sysfs entry	2014-06-28 13:48:44 -07:00
dev-replace.h	Btrfs: add new sources for device replace code	2012-12-12 17:15:41 -05:00
dir-item.c	Btrfs: convert printk to btrfs_ and fix BTRFS prefix	2014-01-28 13:20:05 -08:00
disk-io.c	btrfs: disable strict file flushes for renames and truncates	2014-08-15 07:43:42 -07:00
disk-io.h	Btrfs: add sanity tests for new qgroup accounting code	2014-06-09 17:20:49 -07:00
export.c	btrfs: remove fs/btrfs/compat.h	2013-11-11 22:03:19 -05:00
export.h
extent_io.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs	2014-06-14 19:48:43 -05:00
extent_io.h	Btrfs: remove unused wait queue in struct extent_buffer	2014-06-19 14:20:28 -07:00
extent_map.c	Btrfs: fix NULL pointer crash when running balance and scrub concurrently	2014-06-19 14:20:55 -07:00
extent_map.h	Btrfs: fix NULL pointer crash when running balance and scrub concurrently	2014-06-19 14:20:55 -07:00
extent-tree.c	btrfs: qgroup: account shared subtrees during snapshot delete	2014-08-15 07:43:14 -07:00
file-item.c	Btrfs: fix csum tree corruption, duplicate and outdated checksums	2014-08-15 07:43:40 -07:00
file.c	Btrfs: fill_holes: Fix slot number passed to hole_mergeable() call.	2014-08-19 08:36:26 -07:00
free-space-cache.c	Btrfs: fix broken free space cache after the system crashed	2014-06-19 14:20:54 -07:00
free-space-cache.h	Btrfs: remove path arg from btrfs_truncate_free_space_cache	2013-11-11 21:51:33 -05:00
hash.c	Btrfs: fix btrfs boot when compiled as built-in	2014-01-28 13:20:31 -08:00
hash.h	Btrfs: fix btrfs boot when compiled as built-in	2014-01-28 13:20:31 -08:00
inode-item.c	btrfs: cleanup: removed unused 'btrfs_get_inode_ref_index'	2014-01-28 13:19:39 -08:00
inode-map.c	btrfs: remove newline from inode cache kthread name	2014-06-09 17:20:53 -07:00
inode-map.h
inode.c	Btrfs: fix wrong extent mapping for DirectIO	2014-08-19 08:52:13 -07:00
ioctl.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs	2014-07-04 08:53:53 -07:00
Kconfig	Btrfs: fix btrfs boot when compiled as built-in	2014-01-28 13:20:31 -08:00
locking.c	Btrfs: fix deadlocks with trylock on tree nodes	2014-06-19 14:19:55 -07:00
locking.h	Btrfs: remove btrfs_try_spin_lock	2013-03-14 14:57:10 -04:00
lzo.c	btrfs: return errno instead of -1 from compression	2014-06-09 17:20:21 -07:00
Makefile	Btrfs: add sanity tests for new qgroup accounting code	2014-06-09 17:20:49 -07:00
math.h	Btrfs: cleanup duplicated division functions	2012-12-11 13:31:30 -05:00
ordered-data.c	btrfs: disable strict file flushes for renames and truncates	2014-08-15 07:43:42 -07:00
ordered-data.h	btrfs: disable strict file flushes for renames and truncates	2014-08-15 07:43:42 -07:00
orphan.c	btrfs: expand btrfs_find_item() to include find_orphan_item functionality	2014-01-28 13:19:37 -08:00
print-tree.c	Btrfs: fix btrfs_print_leaf for skinny metadata	2014-07-03 07:04:16 -07:00
print-tree.h	btrfs: make static code static & remove dead code	2013-05-06 15:55:23 -04:00
props.c	Btrfs: add support for inode properties	2014-01-28 13:20:24 -08:00
props.h	Btrfs: add support for inode properties	2014-01-28 13:20:24 -08:00
qgroup.c	btrfs: correctly handle return from ulist_add	2014-08-15 07:43:16 -07:00
qgroup.h	btrfs: qgroup: account shared subtrees during snapshot delete	2014-08-15 07:43:14 -07:00
raid56.c	Btrfs: fix crash when mounting raid5 btrfs with missing disks	2014-06-28 13:48:45 -07:00
raid56.h	Btrfs: RAID5 and RAID6	2013-02-01 14:24:23 -05:00
rcu-string.h
reada.c	Btrfs: fix unfinished readahead thread for raid5/6 degraded mounting	2014-06-13 09:52:21 -07:00
relocation.c	btrfs: remove stale newlines from log messages	2014-06-09 17:20:53 -07:00
root-tree.c	Btrfs: use bitfield instead of integer data type for the some variants in btrfs_root	2014-06-09 17:20:40 -07:00
scrub.c	btrfs: Skip scrubbing removed chunks to avoid -ENOENT.	2014-06-19 14:20:54 -07:00
send.c	Btrfs: send, use the right limits for xattr names and values	2014-06-09 17:21:00 -07:00
send.h	btrfs: make static code static & remove dead code	2013-05-06 15:55:23 -04:00
struct-funcs.c
super.c	btrfs: adjust statfs calculations according to raid profiles	2014-08-15 07:43:10 -07:00
sysfs.c	btrfs: dev add should add its sysfs entry	2014-06-28 13:48:43 -07:00
sysfs.h	btrfs: dev add should add its sysfs entry	2014-06-28 13:48:43 -07:00
transaction.c	btrfs: disable strict file flushes for renames and truncates	2014-08-15 07:43:42 -07:00
transaction.h	btrfs: disable strict file flushes for renames and truncates	2014-08-15 07:43:42 -07:00
tree-defrag.c	Btrfs: use bitfield instead of integer data type for the some variants in btrfs_root	2014-06-09 17:20:40 -07:00
tree-log.c	Btrfs: use helpers for last_trans_log_full_commit instead of opencode	2014-06-09 17:20:45 -07:00
tree-log.h	Btrfs: use helpers for last_trans_log_full_commit instead of opencode	2014-06-09 17:20:45 -07:00
ulist.c	Btrfs: do not export ulist functions	2014-01-29 07:06:27 -08:00
ulist.h	Btrfs: Fix memory corruption by ulist_add_merge() on 32bit arch	2014-08-15 07:43:19 -07:00
uuid-tree.c	Btrfs: convert printk to btrfs_ and fix BTRFS prefix	2014-01-28 13:20:05 -08:00
volumes.c	Btrfs: fix wrong missing device counter decrease	2014-08-19 08:52:10 -07:00
volumes.h	Btrfs: fix deadlock when mounting a degraded fs	2014-06-19 14:20:56 -07:00
xattr.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs	2014-01-30 20:08:20 -08:00
xattr.h	btrfs: use generic posix ACL infrastructure	2014-01-25 23:58:18 -05:00
zlib.c	btrfs: use E2BIG instead of EIO if compression does not help	2014-07-03 07:04:13 -07:00