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linux/fs/btrfs
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Wang Shilong 538f72cdf0 Btrfs: fix protection between walking backrefs and root deletion 
There is a race condition between resolving indirect ref and root deletion,
and we should gurantee that root can not be destroyed to avoid accessing
broken tree here.

Here we fix it by holding @subvol_srcu, and we will release it as soon
as we have held root node lock.

Signed-off-by: Wang Shilong <wangsl.fnst@cn.fujitsu.com>
Signed-off-by: Josef Bacik <jbacik@fb.com>
Signed-off-by: Chris Mason <clm@fb.com>
2014-01-29 07:06:23 -08:00
..
tests
Btrfs: convert printk to btrfs_ and fix BTRFS prefix
2014-01-28 13:20:05 -08:00
acl.c
btrfs: remove dead code
2014-01-28 13:19:50 -08:00
async-thread.c
Btrfs: fix __btrfs_start_workers retval
2013-11-20 20:42:11 -05:00
async-thread.h
Btrfs: eliminate races in worker stopping code
2013-10-04 16:02:13 -04:00
backref.c
Btrfs: fix protection between walking backrefs and root deletion
2014-01-29 07:06:23 -08:00
backref.h
Btrfs: allocate prelim_ref with a slab allocater
2013-09-01 08:16:27 -04:00
btrfs_inode.h
Btrfs: add support for inode properties
2014-01-28 13:20:24 -08:00
check-integrity.c
Btrfs: fix check-integrity to look at the referenced data properly
2014-01-28 13:19:21 -08:00
check-integrity.h
block: submit_bio_wait() conversions
2013-11-24 16:33:41 -07:00
compression.c
Btrfs: convert printk to btrfs_ and fix BTRFS prefix
2014-01-28 13:20:05 -08:00
compression.h
btrfs: make static code static & remove dead code
2013-05-06 15:55:23 -04:00
ctree.c
Btrfs: fix to search previous metadata extent item since skinny metadata
2014-01-28 13:20:33 -08:00
ctree.h
Btrfs: change the members' order of btrfs_space_info structure to reduce the cache miss
2014-01-28 13:20:38 -08:00
delayed-inode.c
Btrfs: introduce the delayed inode ref deletion for the single link inode
2014-01-28 13:20:09 -08:00
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: attach delayed ref updates to delayed ref heads
2014-01-28 13:20:25 -08:00
delayed-ref.h
Btrfs: attach delayed ref updates to delayed ref heads
2014-01-28 13:20:25 -08:00
dev-replace.c
Btrfs: convert printk to btrfs_ and fix BTRFS prefix
2014-01-28 13:20:05 -08:00
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: undo sysfs when open_ctree() fails
2014-01-28 13:20:44 -08:00
disk-io.h
Btrfs: add a sanity test for btrfs_split_item
2013-11-11 21:51:02 -05:00
export.c
btrfs: remove fs/btrfs/compat.h
2013-11-11 22:03:19 -05:00
export.h
…
extent_io.c
Btrfs: convert printk to btrfs_ and fix BTRFS prefix
2014-01-28 13:20:05 -08:00
extent_io.h
Btrfs: move the extent buffer radix tree into the fs_info
2014-01-28 13:19:55 -08:00
extent_map.c
Btrfs: fix extent_map block_len after merging
2014-01-28 13:19:51 -08:00
extent_map.h
btrfs: Enclose macros with complex values within parenthesis
2013-11-11 22:12:06 -05:00
extent-tree.c
Btrfs: fix wrong block group in trace during the free space allocation
2014-01-28 13:20:40 -08:00
file-item.c
Btrfs: convert printk to btrfs_ and fix BTRFS prefix
2014-01-28 13:20:05 -08:00
file.c
Btrfs: fix the race between write back and nocow buffered write
2014-01-28 13:20:28 -08:00
free-space-cache.c
Btrfs: convert printk to btrfs_ and fix BTRFS prefix
2014-01-28 13:20:05 -08:00
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: Use WARN_ON()'s return value in place of WARN_ON(1)
2013-11-11 22:11:53 -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: fix warning while merging two adjacent extents
2014-01-29 07:06:22 -08:00
ioctl.c
btrfs: fix defrag 32-bit integer overflow
2014-01-28 13:20:43 -08:00
Kconfig
Btrfs: fix btrfs boot when compiled as built-in
2014-01-28 13:20:31 -08:00
locking.c
btrfs: make static code static & remove dead code
2013-05-06 15:55:23 -04:00
locking.h
Btrfs: remove btrfs_try_spin_lock
2013-03-14 14:57:10 -04:00
lzo.c
Btrfs: convert printk to btrfs_ and fix BTRFS prefix
2014-01-28 13:20:05 -08:00
Makefile
Btrfs: fix btrfs boot when compiled as built-in
2014-01-28 13:20:31 -08:00
math.h
Btrfs: cleanup duplicated division functions
2012-12-11 13:31:30 -05:00
ordered-data.c
Btrfs: convert printk to btrfs_ and fix BTRFS prefix
2014-01-28 13:20:05 -08:00
ordered-data.h
Btrfs: don't wait for the completion of all the ordered extents
2013-11-11 22:13:44 -05:00
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: convert printk to btrfs_ and fix BTRFS prefix
2014-01-28 13:20:05 -08:00
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: fix qgroup rescan to work with skinny metadata
2014-01-28 13:20:27 -08:00
raid56.c
btrfs: remove fs/btrfs/compat.h
2013-11-11 22:03:19 -05:00
raid56.h
Btrfs: RAID5 and RAID6
2013-02-01 14:24:23 -05:00
rcu-string.h
Btrfs: use rcu to protect device->name
2012-06-14 21:29:16 -04:00
reada.c
Btrfs: convert printk to btrfs_ and fix BTRFS prefix
2014-01-28 13:20:05 -08:00
relocation.c
Btrfs: fix an oops when we fail to relocate tree blocks
2014-01-28 13:20:14 -08:00
root-tree.c
Btrfs: convert printk to btrfs_ and fix BTRFS prefix
2014-01-28 13:20:05 -08:00
scrub.c
Btrfs: fix to search previous metadata extent item since skinny metadata
2014-01-28 13:20:33 -08:00
send.c
Btrfs: fix infinite path build loops in incremental send
2014-01-29 07:06:22 -08:00
send.h
btrfs: make static code static & remove dead code
2013-05-06 15:55:23 -04:00
struct-funcs.c
Btrfs: rewrite BTRFS_SETGET_FUNCS
2012-07-23 16:28:06 -04:00
super.c
btrfs: Cleanup the btrfs_parse_options for remount.
2014-01-28 13:20:34 -08:00
sysfs.c
btrfs: sysfs: list the NO_HOLES feature
2014-01-28 13:20:42 -08:00
sysfs.h
btrfs: publish allocation data in sysfs
2014-01-28 13:19:29 -08:00
transaction.c
btrfs: Add noinode_cache mount option
2014-01-28 13:20:33 -08:00
transaction.h
Btrfs: make fsync latency less sucky
2014-01-28 13:20:25 -08:00
tree-defrag.c
Btrfs: cleanup dead code of defragment
2013-11-11 21:59:45 -05:00
tree-log.c
Btrfs: flush the dirty pages of the ordered extent aggressively during logging csum
2014-01-28 13:20:37 -08:00
tree-log.h
btrfs: make static code static & remove dead code
2013-05-06 15:55:23 -04:00
ulist.c
Btrfs: optimize to remove unnecessary removal with ulist reallocation
2014-01-28 13:20:30 -08:00
ulist.h
Btrfs: add a rb_tree to improve performance of ulist search
2013-05-06 15:54:44 -04:00
uuid-tree.c
Btrfs: convert printk to btrfs_ and fix BTRFS prefix
2014-01-28 13:20:05 -08:00
volumes.c
Btrfs: convert printk to btrfs_ and fix BTRFS prefix
2014-01-28 13:20:05 -08:00
volumes.h
btrfs: Pack struct btrfs_device
2013-11-11 22:11:26 -05:00
xattr.c
Btrfs: add support for inode properties
2014-01-28 13:20:24 -08:00
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: convert printk to btrfs_ and fix BTRFS prefix
2014-01-28 13:20:05 -08:00