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11ef160fda
linux/fs
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Chris Mason 11ef160fda Btrfs: fix releasepage to avoid unlocking extents we haven't locked 
During releasepage, we try to drop any extent_state structs for the
bye offsets of the page we're releaseing.  But the code was incorrectly
telling clear_extent_bit to delete the state struct unconditionallly.

Normally this would be fine because we have the page locked, but other
parts of btrfs will lock down an entire extent, the most common place
being IO completion.

releasepage was deleting the extent state without first locking the extent,
which may result in removing a state struct that another process had
locked down.  The fix here is to leave the NODATASUM and EXTENT_LOCKED
bits alone in releasepage.

Signed-off-by: Chris Mason <chris.mason@oracle.com>
2009-09-23 20:30:53 -04:00
..
9p 9p: remove unnecessary v9fses->options which duplicates the mount string 2009-08-17 16:42:28 -05:00
adfs headers: smp_lock.h redux 2009-07-12 12:22:34 -07:00
affs affs: add ->sync_fs 2009-06-11 21:36:14 -04:00
afs AFS: Stop readlink() on AFS crashing due to NULL 'file' ptr 2009-08-27 12:22:08 -07:00
autofs switch follow_down() 2009-06-11 21:36:01 -04:00
autofs4 autofs4 - fix missed case when changing to use struct path 2009-08-31 17:44:05 -10:00
befs Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6 2009-06-17 08:46:57 -07:00
bfs headers: smp_lock.h redux 2009-07-12 12:22:34 -07:00
btrfs Btrfs: fix releasepage to avoid unlocking extents we haven't locked 2009-09-23 20:30:53 -04:00
cachefiles enforce ->sync_fs is only called for rw superblock 2009-06-11 21:36:06 -04:00
cifs [CIFS] Update readme to reflect forceuid mount parms 2009-08-04 03:53:28 +00:00
coda splice: implement default splice_read method 2009-05-11 14:13:10 +02:00
configfs configfs: Rework configfs_depend_item() locking and make lockdep happy 2009-04-30 10:48:26 -07:00
cramfs fs/cramfs: return f_fsid for statfs(2) 2009-04-02 19:05:08 -07:00
debugfs debugfs: use specified mode to possibly mark files read/write only 2009-06-15 21:30:28 -07:00
devpts devpts: remove module-related code 2009-06-24 08:15:24 -04:00
dlm dlm: free socket in error exit path 2009-07-14 12:28:43 -05:00
ecryptfs eCryptfs: parse_tag_3_packet check tag 3 packet encrypted key size 2009-07-28 14:26:06 -07:00
efs get rid of BKL in fs/efs 2009-06-17 00:36:36 -04:00
exofs headers: smp_lock.h redux 2009-07-12 12:22:34 -07:00
exportfs
ext2 ext2: fix unbalanced kmap()/kunmap() 2009-09-05 13:41:08 -07:00
ext3 ext3: Improve error message that changing journaling mode on remount is not possible 2009-08-24 16:48:45 +02:00
ext4 Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4 2009-07-13 16:39:25 -07:00
fat headers: smp_lock.h redux 2009-07-12 12:22:34 -07:00
freevxfs headers: smp_lock.h redux 2009-07-12 12:22:34 -07:00
fscache FS-Cache: Fixup renamed filenames in comments in internal.h 2009-05-27 10:20:13 -07:00
fuse Revert "fuse: Fix build error" as unnecessary 2009-07-11 11:22:34 -07:00
gfs2 GFS2: Fix permissions on "recover" file 2009-08-14 14:04:46 +01:00
hfs headers: smp_lock.h redux 2009-07-12 12:22:34 -07:00
hfsplus headers: smp_lock.h redux 2009-07-12 12:22:34 -07:00
hostfs hostfs: set maximum filesize in superblock for proper LFS support 2009-06-30 18:56:03 -07:00
hpfs headers: smp_lock.h redux 2009-07-12 12:22:34 -07:00
hppfs hppfs: hppfs_read_file() may return -ERROR 2009-04-02 19:04:53 -07:00
hugetlbfs mm: fix hugetlb bug due to user_shm_unlock call 2009-08-24 12:53:01 -07:00
isofs isofs: fix Joliet regression 2009-07-10 19:18:59 -07:00
jbd jbd: fix race between write_metadata_buffer and get_write_access 2009-07-21 11:54:42 +02:00
jbd2 jbd2: fix race between write_metadata_buffer and get_write_access 2009-07-13 17:55:35 -04:00
jffs2 JFFS2: add missing verify buffer allocation/deallocation 2009-09-03 15:01:34 +01:00
jfs jfs: Fix early release of acl in jfs_get_acl 2009-07-23 11:08:36 -05:00
lockd headers: smp_lock.h redux 2009-07-12 12:22:34 -07:00
minix Making fs/minix/minix.h double including safe 2009-06-22 11:34:42 -07:00
ncpfs NLS: update handling of Unicode 2009-06-15 21:44:43 -07:00
nfs NFSv4: Fix an infinite looping problem with the nfs4_state_manager 2009-08-24 16:28:42 -07:00
nfs_common
nfsd headers: smp_lock.h redux 2009-07-12 12:22:34 -07:00
nilfs2 nilfs2: fix preempt count underflow in nilfs_btnode_prepare_change_key 2009-08-31 12:03:06 +09:00
nls NLS: update handling of Unicode 2009-06-15 21:44:43 -07:00
notify inotify: update the group mask on mark addition 2009-08-28 12:51:14 -04:00
ntfs ntfs: use is_power_of_2() function for clarity. 2009-06-16 19:47:48 -07:00
ocfs2 Merge branch 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jlbec/ocfs2 2009-09-05 13:38:37 -07:00
omfs switch omfs to simple_fsync() 2009-06-11 21:36:13 -04:00
openpromfs zero i_uid/i_gid on inode allocation 2009-01-05 11:54:28 -05:00
partitions partitions: fix broken uevent_suppress conversion 2009-07-12 13:02:09 -07:00
proc mm: revert "oom: move oom_adj value" 2009-08-18 16:31:13 -07:00
qnx4 fs/qnx4: sanitize includes 2009-06-11 21:36:12 -04:00
quota quota: Silence lockdep on quota_on 2009-07-30 17:31:23 +02:00
ramfs fs/ramfs/file-nommu.c needs include/linux/sched.h 2009-07-29 19:10:36 -07:00
reiserfs headers: smp_lock.h redux 2009-07-12 12:22:34 -07:00
romfs ROMFS: romfs_dev_read() error ignored 2009-05-09 10:49:41 -04:00
smbfs push BKL down into ->put_super 2009-06-11 21:36:07 -04:00
squashfs headers: smp_lock.h redux 2009-07-12 12:22:34 -07:00
sysfs sysfs: fix hardlink count on device_move 2009-07-28 13:45:21 -07:00
sysv get rid of BKL in fs/sysv 2009-06-17 00:36:37 -04:00
ubifs headers: smp_lock.h redux 2009-07-12 12:22:34 -07:00
udf udf: Fix loading of VAT inode when drive wrongly reports number of recorded blocks 2009-07-30 17:28:26 +02:00
ufs ufs: sector_t cannot be negative 2009-06-18 13:03:46 -07:00
xfs xfs: actually enable the swapext compat handler 2009-09-01 17:00:46 -05:00
aio.c eventfd: revised interface and cleanups 2009-06-30 18:55:58 -07:00
anon_inodes.c fs: Provide empty .set_page_dirty() aop for anon inodes 2009-06-18 14:46:10 +02:00
attr.c vfs: Use lowercase names of quota functions 2009-03-26 02:18:35 +01:00
bad_inode.c
binfmt_aout.c
binfmt_elf_fdpic.c elf_core_dump: use rcu_read_lock() to access ->real_parent 2009-06-18 13:03:52 -07:00
binfmt_elf.c elf: fix one check-after-use 2009-07-01 11:14:28 -07:00
binfmt_em86.c
binfmt_flat.c flat: fix uninitialized ptr with shared libs 2009-08-07 10:39:57 -07:00
binfmt_misc.c fs/binfmt_misc.c: add terminating newline to /proc/sys/fs/binfmt_misc/status 2009-01-06 15:59:19 -08:00
binfmt_script.c
binfmt_som.c Don't crap into descriptor table in binfmt_som 2009-03-31 23:00:28 -04:00
bio-integrity.c block: Create bip slabs with embedded integrity vectors 2009-07-01 10:56:25 +02:00
bio.c block: fix sg SG_DXFER_TO_FROM_DEV regression 2009-07-10 20:31:53 +02:00
block_dev.c PM / Hibernate: Replace bdget call with simple atomic_inc of i_count 2009-07-29 21:07:55 +02:00
buffer.c Re-introduce page mapping check in mark_buffer_dirty() 2009-08-21 17:40:08 -07:00
char_dev.c headers: smp_lock.h redux 2009-07-12 12:22:34 -07:00
compat_binfmt_elf.c
compat_ioctl.c compat_ioctl: hook up compat handler for FIEMAP ioctl 2009-08-07 10:39:56 -07:00
compat.c exec: do not sleep in TASK_TRACED under ->cred_guard_mutex 2009-09-05 11:30:42 -07:00
dcache.c dcache: extrace and use d_unlinked() 2009-06-11 21:36:06 -04:00
dcookies.c [CVE-2009-0029] System call wrapper special cases 2009-01-14 14:15:18 +01:00
direct-io.c block: Do away with the notion of hardsect_size 2009-05-22 23:22:54 +02:00
drop_caches.c mm: remove __invalidate_mapping_pages variant 2009-06-16 19:47:43 -07:00
eventfd.c eventfd: revised interface and cleanups 2009-06-30 18:55:58 -07:00
eventpoll.c epoll: fix nested calls support 2009-06-18 13:03:41 -07:00
exec.c exec: do not sleep in TASK_TRACED under ->cred_guard_mutex 2009-09-05 11:30:42 -07:00
fcntl.c headers: smp_lock.h redux 2009-07-12 12:22:34 -07:00
fifo.c
file_table.c fs: move mark_files_ro into file_table.c 2009-06-11 21:36:02 -04:00
file.c
filesystems.c fs: Mark get_filesystem_list() as __init function. 2009-04-20 23:02:52 -04:00
fs_struct.c Get rid of indirect include of fs_struct.h 2009-03-31 23:00:27 -04:00
fs-writeback.c cleanup __writeback_single_inode 2009-06-24 08:15:26 -04:00
generic_acl.c New helper - current_umask() 2009-03-31 23:00:26 -04:00
inode.c vfs: add __destroy_inode 2009-08-07 14:38:29 -03:00
internal.h Trim a bit of crap from fs.h 2009-06-11 21:36:07 -04:00
ioctl.c fs: Add new pre-allocation ioctls to vfs for compatibility with legacy xfs ioctls 2009-06-24 08:15:27 -04:00
ioprio.c [CVE-2009-0029] System call wrappers part 28 2009-01-14 14:15:30 +01:00
Kconfig fs/Kconfig: move nilfs2 out 2009-07-14 12:34:17 +09:00
Kconfig.binfmt CORE_DUMP_DEFAULT_ELF_HEADERS depends on ELF_CORE 2009-01-09 16:54:41 -08:00
libfs.c vfs: make get_sb_pseudo set s_maxbytes to value that can be cast to signed 2009-08-18 16:31:12 -07:00
locks.c lockd: call locks_release_private to cleanup per-filesystem state 2009-04-24 16:36:03 -04:00
Makefile nilfs2: update makefile and Kconfig 2009-04-07 08:31:16 -07:00
mbcache.c
mpage.c ext4: Properly initialize the buffer_head state 2009-05-13 15:13:42 -04:00
namei.c IMA: update ima_counts_put 2009-09-07 11:54:58 +10:00
namespace.c vfs: mnt_want_write_file(): fix special file handling 2009-08-07 10:39:56 -07:00
nfsctl.c [CVE-2009-0029] System call wrappers part 27 2009-01-14 14:15:29 +01:00
no-block.c
open.c fs: Add new pre-allocation ioctls to vfs for compatibility with legacy xfs ioctls 2009-06-24 08:15:27 -04:00
pipe.c lockdep: Fix lockdep annotation for pipe_double_lock() 2009-07-22 21:14:14 +02:00
pnode.c
pnode.h
posix_acl.c
read_write.c splice: implement default splice_read method 2009-05-11 14:13:10 +02:00
read_write.h
readdir.c [CVE-2009-0029] System call wrappers part 32 2009-01-14 14:15:31 +01:00
select.c poll/select: initialize triggered field of struct poll_wqueues 2009-08-15 18:40:11 -07:00
seq_file.c seq_file: add function to write binary data 2009-06-18 13:03:57 -07:00
signalfd.c [CVE-2009-0029] System call wrappers part 31 2009-01-14 14:15:31 +01:00
splice.c splice: fix kmaps in default_file_splice_write() 2009-05-19 11:37:46 +02:00
stack.c
stat.c kill vfs_stat_fd / vfs_lstat_fd 2009-04-20 23:02:52 -04:00
super.c ... and the same for vfsmount id/mount group id 2009-06-24 08:15:26 -04:00
sync.c sys_sync(): fix 16% performance regression in ffsb create_4k test 2009-07-06 13:57:03 -07:00
timerfd.c timerfd: add flags check 2009-02-18 15:37:53 -08:00
utimes.c [CVE-2009-0029] System call wrappers part 30 2009-01-14 14:15:30 +01:00
xattr_acl.c
xattr.c fs: introduce mnt_clone_write 2009-06-11 21:36:02 -04:00