iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity
linux/fs
History
Li Zefan 2a0f7f5769 Btrfs: fix recursive auto-defrag 
Follow those steps:

  # mount -o autodefrag /dev/sda7 /mnt
  # dd if=/dev/urandom of=/mnt/tmp bs=200K count=1
  # sync
  # dd if=/dev/urandom of=/mnt/tmp bs=8K count=1 conv=notrunc

and then it'll go into a loop: writeback -> defrag -> writeback ...

It's because writeback writes [8K, 200K] and then writes [0, 8K].

I tried to make writeback know if the pages are dirtied by defrag,
but the patch was a bit intrusive. Here I simply set writeback_index
when we defrag a file.

Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2011-10-10 15:43:34 -04:00
..
9p
9p: remove unnecessary dentry_unhash on rmdir, dir rename
2011-05-28 01:02:53 -04:00
adfs
Fix common misspellings
2011-03-31 11:26:23 -03:00
affs
affs: remove unnecessary dentry_unhash on rmdir, dir rename
2011-05-28 01:02:53 -04:00
afs
AFS: Use i_generation not i_version for the vnode uniquifier
2011-06-16 11:44:48 -04:00
autofs4
autofs4: bogus dentry_unhash() added in ->unlink()
2011-05-30 01:50:53 -04:00
befs
Fix common misspellings
2011-03-31 11:26:23 -03:00
bfs
bfs: remove unnecessary dentry_unhash on dir rename
2011-05-28 01:02:50 -04:00
btrfs
Btrfs: fix recursive auto-defrag
2011-10-10 15:43:34 -04:00
cachefiles
Fix common misspellings
2011-03-31 11:26:23 -03:00
ceph
ceph analog of cifs build_path_from_dentry() race fix
2011-07-16 23:43:58 -04:00
cifs
CIFS: Fix wrong length in cifs_iovec_read
2011-07-21 00:48:05 +00:00
coda
coda_ioctl_permission() is safe in RCU mode
2011-06-20 10:44:19 -04:00
configfs
configfs: remove unnecessary dentry_unhash on rmdir, dir rename
2011-05-28 01:02:54 -04:00
cramfs
cramfs: get_cramfs_inode() returns ERR_PTR() on failure
2011-07-17 23:22:02 -04:00
debugfs
debugfs: move to new strtobool
2011-05-19 16:55:28 +09:30
devpts
fs/devpts/inode.c: correctly check d_alloc_name() return code in devpts_pty_new()
2011-03-22 17:44:17 -07:00
dlm
Merge branch 'trivial' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild-2.6
2011-05-26 13:19:00 -07:00
ecryptfs
eCryptfs: Remove ecryptfs_header_cache_2
2011-05-29 14:24:25 -05:00
efs
block: remove per-queue plugging
2011-03-10 08:52:07 +01:00
exofs
fix exofs ->get_parent()
2011-07-17 23:20:29 -04:00
exportfs
vfs: Add open by file handle support
2011-03-15 02:21:44 -04:00
ext2
ext2: remove unnecessary dentry_unhash on rmdir/rename_dir
2011-05-26 07:26:56 -04:00
ext3
fs: pass exact type of data dirties to ->dirty_inode
2011-05-27 07:04:40 -04:00
ext4
ext4: fixed tracepoints cleanup
2011-06-06 09:51:52 -04:00
fat
fat: Fix corrupt inode flags when remove ATTR_SYS flag
2011-05-31 19:42:24 +09:00
freevxfs
treewide: fix a few typos in comments
2011-05-10 10:16:21 +02:00
fscache
FS-Cache: Fix __fscache_uncache_all_inode_pages()'s outer loop
2011-07-21 10:59:16 -07:00
fuse
more conservative S_NOSEC handling
2011-06-03 18:24:58 -04:00
gfs2
GFS2: Resolve inode eviction and ail list interaction bug
2011-07-14 08:59:44 +01:00
hfs
hfs: remove unnecessary dentry_unhash on rmdir, dir rename
2011-05-28 01:02:52 -04:00
hfsplus
hfsplus: Fix double iput of the same inode in hfsplus_fill_super()
2011-06-30 13:38:39 +02:00
hostfs
hostfs: remove unnecessary dentry_unhash on rmdir, dir rename
2011-05-28 01:02:52 -04:00
hpfs
hpfs: remove unnecessary dentry_unhash on rmdir, dir rename
2011-05-28 01:02:54 -04:00
hppfs
hppfs_lookup(): don't open-code lookup_one_len()
2011-07-17 23:22:48 -04:00
hugetlbfs
mm: don't access vm_flags as 'int'
2011-05-26 09:20:31 -07:00
isofs
isofs: fix bh leak in isofs_fill_super() error case
2011-06-18 07:25:42 -07:00
jbd
jbd: Fix comment to match the code in journal_start()
2011-05-24 00:27:53 +02:00
jbd2
jbd2: Fix oops in jbd2_journal_remove_journal_head()
2011-06-13 15:38:22 -04:00
jffs2
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6
2011-05-28 13:03:41 -07:00
jfs
jfs: agstart field must be 64 bits
2011-06-20 17:53:24 -05:00
lockd
NLM: Don't hang forever on NLM unlock requests
2011-06-15 11:24:27 -04:00
logfs
logfs doesn't need ->permission() at all
2011-06-20 10:44:26 -04:00
minix
minix: remove unnecessary dentry_unhash on rmdir, dir rename
2011-05-28 01:02:54 -04:00
ncpfs
ncpfs: fix rename over directory with dangling references
2011-05-28 01:02:53 -04:00
nfs
Merge branch 'bugfixes' of git://git.linux-nfs.org/projects/trondmy/nfs-2.6
2011-07-13 14:34:08 -07:00
nfs_common
Fix common misspellings
2011-03-31 11:26:23 -03:00
nfsd
nfsd4: fix break_lease flags on nfsd open
2011-06-20 10:38:01 -04:00
nilfs2
nilfs2_permission() doesn't need to bail out in RCU mode
2011-06-20 10:44:33 -04:00
nls
…
notify
Merge branch 'for-linus2' of git://git.profusion.mobi/users/lucas/linux-2.6
2011-04-07 11:14:49 -07:00
ntfs
Fix common misspellings
2011-03-31 11:26:23 -03:00
ocfs2
more conservative S_NOSEC handling
2011-06-03 18:24:58 -04:00
omfs
Remove unneeded version.h includes from fs/
2011-06-24 08:34:22 -07:00
openpromfs
fs: icache RCU free inodes
2011-01-07 17:50:26 +11:00
partitions
Revert "block: Remove extra discard_alignment from hd_struct."
2011-05-30 07:42:51 +02:00
proc
proc: restrict access to /proc/PID/io
2011-06-28 09:39:11 -07:00
pstore
pstore: fix pstore filesystem mount/remount issue
2011-05-16 11:05:00 -07:00
qnx4
block: remove per-queue plugging
2011-03-10 08:52:07 +01:00
quota
vmscan: change shrinker API by passing shrink_control struct
2011-05-25 08:39:26 -07:00
ramfs
ramfs: fix memleak on no-mmu arch
2011-04-14 16:06:56 -07:00
reiserfs
reiserfs_permission() doesn't need to bail out in RCU mode
2011-06-20 10:45:21 -04:00
romfs
romfs: fix romfs_get_unmapped_area() argument check
2011-06-27 18:00:12 -07:00
squashfs
Merge git://git.kernel.org/pub/scm/linux/kernel/git/pkl/squashfs-linus
2011-05-29 11:19:45 -07:00
sysfs
Delay struct net freeing while there's a sysfs instance refering to it
2011-06-12 17:45:41 -04:00
sysv
sysv: remove unnecessary dentry_unhash from rmdir, dir rename
2011-05-28 01:02:50 -04:00
ubifs
ubifs: dereferencing an ERR_PTR in ubifs_mount()
2011-06-20 10:42:34 -04:00
udf
udf: remove unnecessary dentry_unhash from rmdir, dir rename
2011-05-28 01:02:52 -04:00
ufs
ufs should use d_splice_alias()
2011-07-17 23:21:35 -04:00
xfs
xfs: unpin stale inodes directly in IOP_COMMITTED
2011-07-06 15:44:40 -05:00
aio.c
Merge branch 'for-2.6.39/core' of git://git.kernel.dk/linux-2.6-block
2011-03-24 10:16:26 -07:00
anon_inodes.c
sanitize vfsmount refcounting changes
2011-01-16 13:47:07 -05:00
attr.c
Cache xattr security drop check for write v2
2011-05-28 12:02:09 -04:00
bad_inode.c
bad_inode_permission() is safe from RCU mode
2011-06-20 10:44:00 -04:00
binfmt_aout.c
Don't dump task struct in a.out core-dumps
2010-10-14 10:57:40 -07:00
binfmt_elf_fdpic.c
FDPIC: Fix memory leak
2011-07-06 12:15:16 -07:00
binfmt_elf.c
brk: COMPAT_BRK: fix detection of randomized brk
2011-04-14 16:06:55 -07:00
binfmt_em86.c
…
binfmt_flat.c
CRED: Fix load_flat_shared_library() to initialise bprm correctly
2011-05-03 10:10:51 +10:00
binfmt_misc.c
convert get_sb_single() users
2010-10-29 04:16:28 -04:00
binfmt_script.c
…
binfmt_som.c
…
bio-integrity.c
block: Require subsystems to explicitly allocate bio_set integrity mempool
2011-03-17 11:11:05 +01:00
bio.c
block: improve the bio_add_page() and bio_add_pc_page() descriptions
2011-05-28 14:44:46 +02:00
block_dev.c
block: use the passed in @bdev when claiming if partno is zero
2011-06-13 12:45:48 +02:00
buffer.c
vfs: Fix data corruption after failed write in __block_write_begin()
2011-06-16 11:44:46 -04:00
char_dev.c
Merge branch 'for-2.6.38/core' of git://git.kernel.dk/linux-2.6-block
2011-01-13 10:45:01 -08:00
compat_binfmt_elf.c
…
compat_ioctl.c
Merge branch 'tty-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty-2.6
2011-01-07 14:39:20 -08:00
compat.c
exec: unify do_execve/compat_do_execve code
2011-04-09 15:53:56 +02:00
dcache.c
vfs: drop conditional inode prefetch in __do_lookup_rcu
2011-07-21 11:01:42 -07:00
dcookies.c
oprofile, dcookies: Fix possible circular locking dependency
2011-05-31 16:33:35 +02:00
direct-io.c
Merge branch 'for-2.6.39/core' of git://git.kernel.dk/linux-2.6-block
2011-03-24 10:16:26 -07:00
drop_caches.c
vmscan: change shrinker API by passing shrink_control struct
2011-05-25 08:39:26 -07:00
eventfd.c
Docbook: add fs/eventfd.c and fix typos in it
2011-02-21 15:07:04 -08:00
eventpoll.c
Fix common misspellings
2011-03-31 11:26:23 -03:00
exec.c
KEYS/DNS: Fix ____call_usermodehelper() to not lose the session keyring
2011-06-17 09:40:48 -07:00
fcntl.c
userns: rename is_owner_or_cap to inode_owner_or_capable
2011-03-23 19:47:13 -07:00
fhandle.c
fs/fhandle.c: add <linux/personality.h> for ia64
2011-04-14 16:06:56 -07:00
fifo.c
Filesystem: fifo: Fixed coding style issue.
2011-03-21 00:16:09 -04:00
file_table.c
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6
2011-03-16 13:26:17 -07:00
file.c
vfs: avoid large kmalloc()s for the fdtable
2011-04-28 11:28:20 -07:00
filesystems.c
fs: synchronize_rcu when unregister_filesystem success not failure
2011-04-17 10:42:01 -07:00
fs_struct.c
sanitize vfsmount refcounting changes
2011-01-16 13:47:07 -05:00
fs-writeback.c
fs: pass exact type of data dirties to ->dirty_inode
2011-05-27 07:04:40 -04:00
generic_acl.c
userns: rename is_owner_or_cap to inode_owner_or_capable
2011-03-23 19:47:13 -07:00
inode.c
mm: fix assertion mapping->nrpages == 0 in end_writeback()
2011-06-27 18:00:13 -07:00
internal.h
fs: move i_wb_list out from under inode_lock
2011-03-24 21:17:51 -04:00
ioctl.c
vfs: cleanup do_vfs_ioctl()
2011-03-21 00:16:08 -04:00
ioprio.c
ioprio: grab rcu_read_lock in sys_ioprio_{set,get}()
2010-11-15 10:23:31 +01:00
Kconfig
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6
2011-05-26 09:52:14 -07:00
Kconfig.binfmt
coredump: default CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS=y
2010-10-27 18:03:12 -07:00
libfs.c
fs/libfs.c: fix simple_attr_write() on 32bit machines
2011-07-19 22:09:30 -07:00
locks.c
fs: fix lock initialization
2011-07-06 10:41:13 -07:00
Makefile
Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6
2011-03-16 19:01:29 -07:00
mbcache.c
vmscan: change shrinker API by passing shrink_control struct
2011-05-25 08:39:26 -07:00
mpage.c
mm/fs: add hooks to support cleancache
2011-05-26 10:01:43 -06:00
namei.c
vfs: fix race in rcu lookup of pruned dentry
2011-07-19 21:49:01 -07:00
namespace.c
fs/namespace.c: bound mount propagation fix
2011-05-26 07:26:44 -04:00
nfsctl.c
open-style analog of vfs_path_lookup()
2011-03-14 09:15:28 -04:00
no-block.c
llseek: automatically add .llseek fop
2010-10-15 15:53:27 +02:00
open.c
fs: Use BUG_ON(!mnt) at dentry_open().
2011-03-21 01:10:41 -04:00
pipe.c
Fix broken "pipe: use event aware wakeups" optimization
2011-01-20 16:21:59 -08:00
pnode.c
fs: scale mntget/mntput
2011-01-07 17:50:33 +11:00
pnode.h
…
posix_acl.c
NFS: Prevent memory allocation failure in nfsacl_encode()
2011-01-25 15:24:47 -05:00
read_write.c
fix signedness mess in rw_verify_area() on 64bit architectures
2011-01-12 20:06:58 -05:00
read_write.h
…
readdir.c
…
select.c
select: remove unused MAX_SELECT_SECONDS
2011-03-21 00:16:08 -04:00
seq_file.c
fs: take dcache_lock inside __d_path
2010-10-25 21:26:12 -04:00
signalfd.c
Merge branch 'hwpoison' of git://git.kernel.org/pub/scm/linux/kernel/git/ak/linux-mce-2.6
2010-10-26 10:13:10 -07:00
splice.c
splice: add wakeup_pipe_readers()
2011-05-23 19:58:53 +02:00
stack.c
…
stat.c
readlinkat(), fchownat() and fstatat() with empty relative pathnames
2011-03-15 02:21:45 -04:00
statfs.c
clean statfs-like syscalls up
2011-03-14 09:15:28 -04:00
super.c
more conservative S_NOSEC handling
2011-06-03 18:24:58 -04:00
sync.c
Merge branch 'for-2.6.39/core' of git://git.kernel.dk/linux-2.6-block
2011-03-24 10:16:26 -07:00
timerfd.c
timerfd: Fix wakeup of processes when timer is cancelled on clock change
2011-06-14 11:46:14 +02:00
utimes.c
userns: rename is_owner_or_cap to inode_owner_or_capable
2011-03-23 19:47:13 -07:00
xattr_acl.c
…
xattr.c
Cache xattr security drop check for write v2
2011-05-28 12:02:09 -04:00