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Josef Bacik 9e0baf60de Btrfs: fix enospc problems with delalloc 
So I had this brilliant idea to use atomic counters for outstanding and reserved
extents, but this turned out to be a bad idea.  Consider this where we have 1
outstanding extent and 1 reserved extent

Reserver				Releaser
					atomic_dec(outstanding) now 0
atomic_read(outstanding)+1 get 1
atomic_read(reserved) get 1
don't actually reserve anything because
they are the same
					atomic_cmpxchg(reserved, 1, 0)
atomic_inc(outstanding)
atomic_add(0, reserved)
					free reserved space for 1 extent

Then the reserver now has no actual space reserved for it, and when it goes to
finish the ordered IO it won't have enough space to do it's allocation and you
get those lovely warnings.

Signed-off-by: Josef Bacik <josef@redhat.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2011-07-27 12:46:44 -04:00
..
9p
fs/9p: Fix error reported by coccicheck
2011-04-15 15:26:14 -05:00
adfs
Fix common misspellings
2011-03-31 11:26:23 -03:00
affs
Merge branch 'for-2.6.39/core' of git://git.kernel.dk/linux-2.6-block
2011-03-24 10:16:26 -07:00
afs
Fix common misspellings
2011-03-31 11:26:23 -03:00
autofs4
Fix common misspellings
2011-03-31 11:26:23 -03:00
befs
Fix common misspellings
2011-03-31 11:26:23 -03:00
bfs
Merge branch 'for-2.6.39/core' of git://git.kernel.dk/linux-2.6-block
2011-03-24 10:16:26 -07:00
btrfs
Btrfs: fix enospc problems with delalloc
2011-07-27 12:46:44 -04:00
cachefiles
Fix common misspellings
2011-03-31 11:26:23 -03:00
ceph
ceph: do not use i_wrbuffer_ref as refcount for Fb cap
2011-05-11 10:44:48 -07:00
cifs
cifs: fix cifsConvertToUCS() for the mapchars case
2011-05-17 20:54:04 +00:00
coda
codafs: fix build break when CONFIG_PROC_SYSCTL=n
2011-03-25 17:45:16 -07:00
configfs
configfs: Fix race between configfs_readdir() and configfs_d_iput()
2011-05-18 04:08:16 -07:00
cramfs
cramfs: generate unique inode number for better inode cache usage
2011-01-13 08:03:23 -08:00
debugfs
debugfs: Fix filesystem reference counting on debugfs_remove() failure
2011-02-18 08:07:18 -08:00
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
Fix common misspellings
2011-03-31 11:26:23 -03:00
ecryptfs
eCryptfs: Flush dirty pages in setattr
2011-04-25 18:49:46 -05:00
efs
block: remove per-queue plugging
2011-03-10 08:52:07 +01:00
exofs
Fix common misspellings
2011-03-31 11:26:23 -03:00
exportfs
vfs: Add open by file handle support
2011-03-15 02:21:44 -04:00
ext2
Fix common misspellings
2011-03-31 11:26:23 -03:00
ext3
Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs-2.6
2011-04-08 07:35:17 -07:00
ext4
Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4
2011-04-11 15:45:47 -07:00
fat
Merge branch 'for-2.6.39/core' of git://git.kernel.dk/linux-2.6-block
2011-03-24 10:16:26 -07:00
freevxfs
Fix common misspellings
2011-03-31 11:26:23 -03:00
fscache
FS-Cache: Fix operation handling
2011-01-14 09:23:36 -08:00
fuse
fuse: fix oops in revalidate when called with NULL nameidata
2011-05-10 17:35:58 +02:00
gfs2
add hlist_bl_lock/unlock helpers
2011-04-25 18:14:10 -07:00
hfs
Merge branch 'for-2.6.39/core' of git://git.kernel.dk/linux-2.6-block
2011-03-24 10:16:26 -07:00
hfsplus
Merge branch 'for-2.6.39/core' of git://git.kernel.dk/linux-2.6-block
2011-03-24 10:16:26 -07:00
hostfs
switch hostfs
2011-01-12 20:03:42 -05:00
hpfs
HPFS: Remove unused variable
2011-05-09 09:04:24 -07:00
hppfs
fs: icache RCU free inodes
2011-01-07 17:50:26 +11:00
hugetlbfs
mm: hugetlbfs: change remove_from_page_cache
2011-03-22 17:44:02 -07:00
isofs
Merge branch 'for-2.6.39/core' of git://git.kernel.dk/linux-2.6-block
2011-03-24 10:16:26 -07:00
jbd
Fix common misspellings
2011-03-31 11:26:23 -03:00
jbd2
Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4
2011-04-11 15:45:47 -07:00
jffs2
Fix common misspellings
2011-03-31 11:26:23 -03:00
jfs
Fix common misspellings
2011-03-31 11:26:23 -03:00
lockd
NLM: Fix "kernel BUG at fs/lockd/host.c:417!" or ".../host.c:283!"
2011-01-25 15:24:47 -05:00
logfs
logfs: initialize superblock entries earlier
2011-05-03 16:10:25 -07:00
minix
Merge branch 'for-2.6.39/core' of git://git.kernel.dk/linux-2.6-block
2011-03-24 10:16:26 -07:00
ncpfs
Fix common misspellings
2011-03-31 11:26:23 -03:00
nfs
NFSv4.1: Ensure that layoutget uses the correct gfp modes
2011-05-11 22:52:13 -04:00
nfs_common
Fix common misspellings
2011-03-31 11:26:23 -03:00
nfsd
Open with O_CREAT flag set fails to open existing files on non writable directories
2011-04-20 11:03:01 -04:00
nilfs2
nilfs2: fix infinite loop in nilfs_palloc_freev function
2011-05-10 22:19:50 +09:00
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
ocfs2/dlm: Target node death during resource migration leads to thread spin
2011-05-13 11:27:30 -07:00
omfs
Merge branch 'for-2.6.39/core' of git://git.kernel.dk/linux-2.6-block
2011-03-24 10:16:26 -07:00
openpromfs
fs: icache RCU free inodes
2011-01-07 17:50:26 +11:00
partitions
Validate size of EFI GUID partition entries.
2011-05-06 07:46:37 -07:00
proc
Don't lock guardpage if the stack is growing up
2011-05-09 16:22:07 -07:00
pstore
Fix common misspellings
2011-03-31 11:26:23 -03:00
qnx4
block: remove per-queue plugging
2011-03-10 08:52:07 +01:00
quota
Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs-2.6
2011-04-08 07:35:17 -07:00
ramfs
ramfs: fix memleak on no-mmu arch
2011-04-14 16:06:56 -07:00
reiserfs
Fix common misspellings
2011-03-31 11:26:23 -03:00
romfs
fs: icache RCU free inodes
2011-01-07 17:50:26 +11:00
squashfs
Fix common misspellings
2011-03-31 11:26:23 -03:00
sysfs
kconfig: rename CONFIG_EMBEDDED to CONFIG_EXPERT
2011-01-20 17:02:05 -08:00
sysv
Merge branch 'for-2.6.39/core' of git://git.kernel.dk/linux-2.6-block
2011-03-24 10:16:26 -07:00
ubifs
UBIFS: seek journal heads to the latest bud in replay
2011-05-02 19:23:48 +03:00
udf
Merge branch 'for-2.6.39/core' of git://git.kernel.dk/linux-2.6-block
2011-03-24 10:16:26 -07:00
ufs
Merge branch 'for-linus2' of git://git.profusion.mobi/users/lucas/linux-2.6
2011-04-07 11:14:49 -07:00
xfs
xfs: fix race condition in AIL push trigger
2011-05-09 18:35:04 -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
Fix common misspellings
2011-03-31 11:26:23 -03:00
bad_inode.c
fs: provide rcu-walk aware permission i_ops
2011-01-07 17:50:29 +11:00
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
binfmt_elf_fdpic: Fix clear_user() error handling
2010-06-01 08:11:06 -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
Fix common misspellings
2011-03-31 11:26:23 -03:00
binfmt_misc.c
convert get_sb_single() users
2010-10-29 04:16:28 -04:00
binfmt_script.c
Make do_execve() take a const filename pointer
2010-08-17 18:07:43 -07:00
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
Fix common misspellings
2011-03-31 11:26:23 -03:00
block_dev.c
block: rescan partitions on invalidated devices on -ENOMEDIA too
2011-04-29 10:17:26 +02:00
buffer.c
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6
2011-03-24 19:01:30 -07:00
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
select: remove unused MAX_SELECT_SECONDS
2011-03-21 00:16:08 -04:00
dcache.c
add hlist_bl_lock/unlock helpers
2011-04-25 18:14:10 -07:00
dcookies.c
…
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
fs: move i_sb_list out from under inode_lock
2011-03-24 21:16:32 -04:00
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
Small typo fix...
2011-03-21 00:16:09 -04:00
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
Fix common misspellings
2011-03-31 11:26:23 -03:00
generic_acl.c
userns: rename is_owner_or_cap to inode_owner_or_capable
2011-03-23 19:47:13 -07:00
inode.c
fs: export empty_aops
2011-04-05 23:51:48 +02:00
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 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6
2011-03-16 19:01:29 -07:00
Kconfig.binfmt
coredump: default CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS=y
2010-10-27 18:03:12 -07:00
libfs.c
pass default dentry_operations to mount_pseudo()
2011-01-12 20:03:43 -05:00
locks.c
Merge branch 'for-2.6.39' of git://linux-nfs.org/~bfields/linux
2011-03-24 08:20:39 -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
Fix common misspellings
2011-03-31 11:26:23 -03:00
mpage.c
fs: make mpage read/write_pages() plug
2011-03-10 08:52:26 +01:00
namei.c
vfs: micro-optimize acl_permission_check()
2011-05-13 11:51:01 -07:00
namespace.c
Revert "vfs: Export file system uuid via /proc/<pid>/mountinfo"
2011-04-12 13:35:56 -07:00
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
vfs: fix warning: 'dirent' is used uninitialized in this function
2010-08-09 20:45:05 -07:00
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
Merge branch 'for-2.6.38/core' of git://git.kernel.dk/linux-2.6-block
2011-01-13 10:45:01 -08:00
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
Merge branch 'for-2.6.39/core' of git://git.kernel.dk/linux-2.6-block
2011-03-24 10:16:26 -07:00
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
llseek: automatically add .llseek fop
2010-10-15 15:53:27 +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
vfs: Pass setxattr(2) flags properly
2011-04-21 07:34:44 -07:00