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bd43df021ac37247f2db58ff376fb4032170f754
linux/fs
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Jaegeuk Kim bd43df021a f2fs: cover global locks for reserve_new_block 
The fill_zero() from fallocate() calls get_new_data_page() in which calls
reserve_new_block().
The reserve_new_block() should be covered by *DATA_NEW*, one of global locks.
And also, before getting the lock, we should check free sections by calling
f2fs_balance_fs().

If we break this rule, f2fs is able to face with out-of-control free space
management and fall into infinite loop like the following scenario as well.

[f2fs_sync_fs()]             [fallocate()]
 - write_checkpoint()        - fill_zero()
  - block_operations()        - get_new_data_page()
   : grab NODE_NEW             - get_dnode_of_data()
                                : get locked dirty node page
    - sync_node_pages()
                                : try to grab NODE_NEW for data allocation
     : trylock and skip the dirty node page
   : call sync_node_pages() repeatedly in order to flush all the dirty node
     pages!

In order to avoid this, we should grab another global lock such as DATA_NEW
before calling get_new_data_page() in fill_zero().

Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2013-02-12 07:15:00 +09:00
..
9p
Merge tag 'for-linus-merge-3.7' of git://git.kernel.org/pub/scm/linux/kernel/git/ericvh/v9fs
2012-10-12 09:59:23 +09:00
adfs
adfs: drop vmtruncate
2012-12-20 14:00:01 -05:00
affs
affs: drop vmtruncate
2012-12-20 14:00:01 -05:00
afs
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2012-10-02 20:25:04 -07:00
autofs4
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace
2012-12-17 15:44:47 -08:00
befs
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2012-10-02 20:25:04 -07:00
bfs
bfs: drop vmtruncate
2012-12-20 14:00:01 -05:00
btrfs
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs
2013-02-08 12:06:46 +11:00
cachefiles
FS-Cache: Mark cancellation of in-progress operation
2012-12-20 22:34:00 +00:00
ceph
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client
2012-12-20 14:00:13 -08:00
cifs
fs/cifs/cifs_dfs_ref.c: fix potential memory leakage
2013-01-22 23:58:16 -06:00
coda
fs: push rcu_barrier() from deactivate_locked_super() to filesystems
2012-10-02 21:35:55 -04:00
configfs
lseek: the "whence" argument is called "whence"
2012-12-17 17:15:12 -08:00
cramfs
userns: Convert cramfs to use kuid/kgid where appropriate
2012-09-21 03:13:08 -07:00
debugfs
debugfs: convert gid= argument from decimal, not octal
2013-01-11 05:56:01 -08:00
devpts
TTY: devpts, document devpts inode operations
2012-10-22 16:50:13 -07:00
dlm
dlm: check the write size from user
2013-02-04 15:31:22 -06:00
ecryptfs
fs/ecryptfs/crypto.c: make ecryptfs_encode_for_filename() static
2012-12-18 10:10:13 -06:00
efs
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2012-10-02 20:25:04 -07:00
exofs
exofs: don't leak io_state and pages on read error
2012-12-14 12:17:32 +02:00
exportfs
Merge branch 'for-3.8' of git://linux-nfs.org/~bfields/linux
2012-12-20 14:04:11 -08:00
ext2
ext2: fix return values on parse_options() failure
2012-10-09 23:23:53 +02:00
ext3
lseek: the "whence" argument is called "whence"
2012-12-17 17:15:12 -08:00
ext4
ext4: remove duplicate call to ext4_bread() in ext4_init_new_dir()
2013-01-06 23:40:25 -05:00
f2fs
f2fs: cover global locks for reserve_new_block
2013-02-12 07:15:00 +09:00
fat
fat: fix incorrect function comment
2012-12-20 17:40:20 -08:00
freevxfs
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2012-10-02 20:25:04 -07:00
fscache
FS-Cache: Clear remaining page count on retrieval cancellation
2012-12-20 22:35:15 +00:00
fuse
fuse: remove unused variable in fuse_try_move_page()
2013-01-17 13:09:59 +01:00
gfs2
GFS2: fix skip unlock condition
2013-01-28 09:49:15 +00:00
hfs
hfs: drop vmtruncate
2012-12-20 14:00:01 -05:00
hfsplus
Merge branch 'akpm' (Andrew's patch-bomb)
2012-12-20 20:00:43 -08:00
hostfs
Merge branch 'for-linus-37rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml
2012-10-10 11:15:20 +09:00
hpfs
hpfs: drop vmtruncate
2012-12-20 18:40:00 -05:00
hppfs
pidns: Use task_active_pid_ns where appropriate
2012-11-19 05:59:09 -08:00
hugetlbfs
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial
2012-12-13 12:00:02 -08:00
isofs
tmpfs,ceph,gfs2,isofs,reiserfs,xfs: fix fh_len checking
2012-10-09 23:33:55 -04:00
jbd
jbd: don't wake kjournald unnecessarily
2013-01-14 22:50:45 +01:00
jbd2
Merge tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4
2013-01-02 09:57:34 -08:00
jffs2
jffs2: hold erase_completion_lock on exit
2012-11-18 11:59:01 +02:00
jfs
jfs: drop vmtruncate
2012-12-20 18:40:52 -05:00
lockd
lockd: Remove BUG_ON()s from fs/lockd/clntproc.c
2012-11-04 14:43:40 -05:00
logfs
logfs: drop vmtruncate
2012-12-20 18:40:53 -05:00
minix
minix: drop vmtruncate
2012-12-20 18:40:53 -05:00
ncpfs
ncpfs: drop vmtruncate
2012-12-20 18:40:54 -05:00
nfs
NFSv4.1: Handle NFS4ERR_DELAY when resetting the NFSv4.1 session
2013-01-30 17:45:15 -05:00
nfs_common
…
nfsd
Revert "nfsd: warn on odd reply state in nfsd_vfs_read"
2012-12-21 17:07:45 -08:00
nilfs2
nilfs2: fix fix very long mount time issue
2013-02-05 20:38:46 +11:00
nls
…
notify
Merge branch 'for-next' of git://git.infradead.org/users/eparis/notify
2012-12-20 20:11:52 -08:00
ntfs
ntfs: drop vmtruncate
2012-12-20 18:40:55 -05:00
ocfs2
ocfs2: drop vmtruncate
2012-12-20 14:00:01 -05:00
omfs
omfs: drop vmtruncate
2012-12-20 14:00:01 -05:00
openpromfs
fs: push rcu_barrier() from deactivate_locked_super() to filesystems
2012-10-02 21:35:55 -04:00
proc
mempolicy: remove arg from mpol_parse_str, mpol_to_str
2013-01-02 09:27:10 -08:00
pstore
pstore: remove __dev* attributes.
2013-01-03 15:57:14 -08:00
qnx4
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2012-10-02 20:25:04 -07:00
qnx6
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2012-10-02 20:25:04 -07:00
quota
quota: Use the pre-processor to compile out quotactl_cmd_write when !CONFIG_BLOCK
2012-12-13 16:33:24 +01:00
ramfs
don't pass nameidata to ->create()
2012-07-14 16:34:47 +04:00
reiserfs
reiserfs: drop vmtruncate
2012-12-20 14:00:01 -05:00
romfs
fs: push rcu_barrier() from deactivate_locked_super() to filesystems
2012-10-02 21:35:55 -04:00
squashfs
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2012-10-02 20:25:04 -07:00
sysfs
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace
2012-12-17 15:44:47 -08:00
sysv
sysv: drop vmtruncate
2012-12-20 14:00:01 -05:00
ubifs
ubifs: use prandom_bytes
2012-12-17 17:15:26 -08:00
udf
UDF: Fix a null pointer dereference in udf_sb_free_partitions
2013-01-14 22:53:47 +01:00
ufs
ufs: drop vmtruncate
2012-12-20 14:00:01 -05:00
xfs
xfs: Fix xfs_swap_extents() after removal of xfs_flushinval_pages()
2013-01-28 16:05:10 -06:00
aio.c
aio: now fput() is OK from interrupt context; get rid of manual delayed __fput()
2012-07-22 23:57:59 +04:00
anon_inodes.c
…
attr.c
userns: Allow chown and setgid preservation
2012-11-20 04:17:24 -08:00
bad_inode.c
lseek: the "whence" argument is called "whence"
2012-12-17 17:15:12 -08:00
binfmt_aout.c
get rid of pt_regs argument of ->load_binary()
2012-11-28 21:53:38 -05:00
binfmt_elf_fdpic.c
get rid of pt_regs argument of ->load_binary()
2012-11-28 21:53:38 -05:00
binfmt_elf.c
binfmt_elf: fix corner case kfree of uninitialized data
2012-12-17 17:15:19 -08:00
binfmt_em86.c
exec: use -ELOOP for max recursion depth
2012-12-17 17:15:23 -08:00
binfmt_flat.c
get rid of pt_regs argument of ->load_binary()
2012-11-28 21:53:38 -05:00
binfmt_misc.c
exec: do not leave bprm->interp on stack
2012-12-20 17:40:19 -08:00
binfmt_script.c
exec: do not leave bprm->interp on stack
2012-12-20 17:40:19 -08:00
binfmt_som.c
get rid of pt_regs argument of ->load_binary()
2012-11-28 21:53:38 -05:00
bio-integrity.c
block: Ues bi_pool for bio_integrity_alloc()
2012-09-09 10:35:38 +02:00
bio.c
vfs: fix: don't increase bio_slab_max if krealloc() fails
2012-10-22 22:00:26 +02:00
block_dev.c
lseek: the "whence" argument is called "whence"
2012-12-17 17:15:12 -08:00
buffer.c
vfs: add missing virtual cache flush after editing partial pages
2013-01-14 13:17:50 -08:00
char_dev.c
char_dev: pin parent kobject
2012-10-22 08:50:37 +03:00
compat_binfmt_elf.c
coredump: extend core dump note section to contain file names of mapped files
2012-10-06 03:05:17 +09:00
compat_ioctl.c
Merge 3.7-rc3 into tty-next
2012-10-29 09:00:57 -07:00
compat.c
vfs: define struct filename and have getname() return it
2012-10-12 20:14:55 -04:00
coredump.c
do_coredump(): get rid of pt_regs argument
2012-11-29 00:01:25 -05:00
coredump.h
coredump: update coredump-related headers
2012-10-06 03:05:15 +09:00
dcache.c
vfs: d_obtain_alias() needs to use "/" as default name.
2012-12-20 18:49:10 -05:00
dcookies.c
…
direct-io.c
direct-io: don't read inode->i_blkbits multiple times
2012-11-29 12:38:44 -08:00
drop_caches.c
…
eventfd.c
fs, eventfd: add procfs fdinfo helper
2012-12-17 17:15:27 -08:00
eventpoll.c
epoll: prevent missed events on EPOLL_CTL_MOD
2013-01-02 09:16:43 -08:00
exec.c
fs/exec.c: work around icc miscompilation
2013-01-11 14:54:55 -08:00
fcntl.c
Fix F_DUPFD_CLOEXEC breakage
2012-10-09 15:52:31 +09:00
fhandle.c
Merge branch 'for-3.8' of git://linux-nfs.org/~bfields/linux
2012-12-20 14:04:11 -08:00
fifo.c
fifo: Do not restart open() if it already found a partner
2012-07-16 08:33:14 -07:00
file_table.c
fs: Fix imbalance in freeze protection in mark_files_ro()
2012-12-20 13:57:36 -05:00
file.c
misc: remove __dev* attributes.
2013-01-03 15:57:16 -08:00
filesystems.c
vfs: define struct filename and have getname() return it
2012-10-12 20:14:55 -04:00
fs_struct.c
kill daemonize()
2012-11-28 21:49:02 -05:00
fs-writeback.c
writeback: fix a typo in comment
2012-12-12 17:38:34 -08:00
generic_acl.c
userns: Pass a userns parameter into posix_acl_to_xattr and posix_acl_from_xattr
2012-09-18 01:01:35 -07:00
inode.c
mm: redefine address_space.assoc_mapping
2012-12-11 17:22:26 -08:00
internal.h
writeback: put unused inodes to LRU after writeback completion
2012-11-26 17:41:24 -08:00
ioctl.c
switch simple cases of fget_light to fdget
2012-09-26 22:20:08 -04:00
ioprio.c
…
Kconfig
fuse: Move CUSE Kconfig entry from fs/Kconfig into fs/fuse/Kconfig
2013-01-17 13:08:45 +01:00
Kconfig.binfmt
coredump: make core dump functionality optional
2012-10-06 03:05:15 +09:00
libfs.c
vfs: drop vmtruncate
2012-12-20 18:46:29 -05:00
locks.c
nfs: disintegrate UAPI for nfs
2012-10-09 18:35:22 -04:00
Makefile
f2fs: update Kconfig and Makefile
2012-12-11 13:43:42 +09:00
mbcache.c
…
mount.h
proc: Usable inode numbers for the namespace file descriptors.
2012-11-20 04:19:49 -08:00
mpage.c
…
namei.c
vfs: fix renameat to retry on ESTALE errors
2012-12-20 18:50:05 -05:00
namespace.c
vfs, freeze: use ACCESS_ONCE() to guard access to ->mnt_flags
2012-12-20 13:36:18 -05:00
no-block.c
…
open.c
vfs: make fchownat retry once on ESTALE errors
2012-12-20 18:50:07 -05:00
pipe.c
pipe(2) - race-free error recovery
2012-09-26 21:08:52 -04:00
pnode.c
VFS: Make clone_mnt()/copy_tree()/collect_mounts() return errors
2012-07-14 16:37:27 +04:00
pnode.h
vfs: Only support slave subtrees across different user namespaces
2012-11-19 05:59:20 -08:00
posix_acl.c
userns: Convert vfs posix_acl support to use kuids and kgids
2012-09-18 01:01:35 -07:00
proc_namespace.c
get rid of magic in proc_namespace.c
2012-07-14 16:32:48 +04:00
read_write.c
sendfile: allows bypassing of notifier events
2012-12-20 17:40:21 -08:00
read_write.h
compat: fs: Generic compat_sys_sendfile implementation
2012-10-02 21:35:55 -04:00
readdir.c
switch simple cases of fget_light to fdget
2012-09-26 22:20:08 -04:00
select.c
switch simple cases of fget_light to fdget
2012-09-26 22:20:08 -04:00
seq_file.c
seq_file: fix new kernel-doc warnings
2013-01-10 14:35:24 -08:00
signalfd.c
fs, epoll: add procfs fdinfo helper
2012-12-17 17:15:27 -08:00
splice.c
tcp: fix MSG_SENDPAGE_NOTLAST logic
2013-01-06 20:58:13 -08:00
stack.c
…
stat.c
vfs: fix readlinkat to retry on ESTALE
2012-12-20 18:50:01 -05:00
statfs.c
vfs: fix user_statfs to retry once on ESTALE errors
2012-12-20 18:50:07 -05:00
super.c
vfs: drop lock/unlock super
2012-10-09 23:33:39 -04:00
sync.c
switch simple cases of fget_light to fdget
2012-09-26 22:20:08 -04:00
timerfd.c
switch simple cases of fget_light to fdget
2012-09-26 22:20:08 -04:00
utimes.c
vfs: allow utimensat() calls to retry once on an ESTALE error
2012-12-20 18:50:08 -05:00
xattr_acl.c
userns: Fix posix_acl_file_xattr_userns gid conversion
2012-10-12 13:16:48 -07:00
xattr.c
vfs: make lremovexattr retry once on ESTALE error
2012-12-20 18:50:11 -05:00