Jaegeuk Kim dd802406e3 f2fs: avoid double lock for cp_rwsem ...

The __f2fs_add_link is covered by cp_rwsem all the time.
This calls init_inode_metadata, which conducts some acl operations including
memory allocation with GFP_KERNEL previously.
But, under memory pressure, f2fs_write_data_page can be called, which also
grabs cp_rwsem too.

In this case, this incurs a deadlock pointed by Chao.
Thread #1        Thread #2
 down_read
                 down_write
  down_read
 -> here down_read should wait forever.

Reviewed-by: Chao Yu <chao2.yu@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>

2015-01-09 17:02:25 -08:00

..

9p

assorted conversions to %p[dD]

2014-11-19 13:01:20 -05:00

adfs

adfs: add __printf verification, fix format/argument mismatches

2014-08-08 15:57:24 -07:00

affs

fs/affs/file.c: remove obsolete pagesize check

2014-12-13 12:42:52 -08:00

afs

Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next

2014-12-11 14:27:06 -08:00

autofs4

assorted conversions to %p[dD]

2014-11-19 13:01:20 -05:00

befs

befs: remove dead code

2014-12-13 12:42:51 -08:00

bfs

fs/bfs: use bfs prefix for dump_imap

2014-08-08 15:57:24 -07:00

btrfs

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

2014-12-19 18:19:19 -08:00

cachefiles

assorted conversions to %p[dD]

2014-11-19 13:01:20 -05:00

ceph

Ceph: remove left-over reject file

2014-12-17 18:47:01 -08:00

cifs

cifs: make new inode cache when file type is different

2014-12-22 14:16:21 -06:00

coda

coda_venus_readdir(): use file_inode()

2014-12-11 16:28:12 -05:00

configfs

assorted conversions to %p[dD]

2014-11-19 13:01:20 -05:00

cramfs

fs/cramfs/inode.c: use linux/uaccess.h

2014-08-08 15:57:25 -07:00

debugfs

Merge tag 'driver-core-3.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core

2014-12-14 16:10:09 -08:00

devpts

fs/devpts/inode.c: convert printk to pr_foo()

2014-06-06 16:08:14 -07:00

dlm

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

2014-12-10 16:10:49 -08:00

ecryptfs

Merge tag 'ecryptfs-3.19-rc1-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tyhicks/ecryptfs

2014-12-19 18:15:12 -08:00

efivarfs

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

2014-12-10 16:10:49 -08:00

efs

fs/efs/namei.c: return is not a function

2014-08-08 15:57:18 -07:00

exofs

Boaz Harrosh - Fix broken email address

2014-10-19 20:22:32 +03:00

exportfs

move d_rcu from overlapping d_child to overlapping d_alias

2014-11-03 15:20:29 -05:00

ext2

ext2: Convert to private i_dquot field

2014-11-10 10:06:10 +01:00

ext3

ext3: Convert to private i_dquot field

2014-11-10 10:06:10 +01:00

ext4

Merge tag 'ext4_for_linus_stable' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4

2015-01-06 14:05:40 -08:00

f2fs

f2fs: avoid double lock for cp_rwsem

2015-01-09 17:02:25 -08:00

fat

fat: fix data past EOF resulting from fsx testsuite

2014-12-13 12:42:51 -08:00

freevxfs

Merge tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4

2014-04-04 15:39:39 -07:00

fscache

fs/fscache/object-list.c: use __seq_open_private()

2014-10-13 17:52:21 +01:00

fuse

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse

2014-12-17 09:41:32 -08:00

gfs2

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

2014-12-10 16:10:49 -08:00

hfs

fs/hfs/catalog.c: fix comparison bug in hfs_cat_keycmp

2014-12-10 17:41:16 -08:00

hfsplus

hfsplus: fix longname handling

2014-12-18 19:08:10 -08:00

hostfs

hostfs: support rename flags

2014-08-07 14:40:09 -04:00

hpfs

fs/hpfs/dnode.c: fix suspect code indent

2014-08-08 15:57:22 -07:00

hppfs

vfs: make first argument of dir_context.actor typed

2014-10-31 17:48:54 -04:00

hugetlbfs

mm: convert i_mmap_mutex to rwsem

2014-12-13 12:42:45 -08:00

isofs

isofs: Fix unchecked printing of ER records

2014-12-19 11:29:24 +01:00

jbd

jbd: Deletion of an unnecessary check before the function call "iput"

2014-11-18 10:15:29 +01:00

jbd2

Merge tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4

2014-12-12 09:28:03 -08:00

jffs2

jffs2: Drop bogus if in comment

2014-11-28 18:23:44 -08:00

jfs

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

2014-12-10 16:10:49 -08:00

kernfs

vm_area_operations: kill ->migrate()

2014-12-17 08:26:51 -05:00

lockd

Merge branch 'for-3.19' of git://linux-nfs.org/~bfields/linux

2014-12-16 15:25:31 -08:00

logfs

fs/logfs/readwrite.c: kernel-doc warning fixes

2014-08-06 18:01:12 -07:00

minix

minix zmap block counts calculation fix

2014-08-08 15:57:20 -07:00

ncpfs

Merge branch 'akpm' (patchbomb from Andrew)

2014-12-10 18:34:42 -08:00

nfs

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

2014-12-10 16:10:49 -08:00

nfs_common

lockd: move lockd's grace period handling into its own module

2014-09-17 16:33:11 -04:00

nfsd

Merge branch 'for-3.19' of git://linux-nfs.org/~bfields/linux

2014-12-16 15:25:31 -08:00

nilfs2

nilfs2: fix the nilfs_iget() vs. nilfs_new_inode() races

2014-12-10 17:41:16 -08:00

nls

…

notify

fsnotify: remove destroy_list from fsnotify_mark

2014-12-13 12:42:53 -08:00

ntfs

assorted conversions to %p[dD]

2014-11-19 13:01:20 -05:00

ocfs2

ocfs2: fix the wrong directory passed to ocfs2_lookup_ino_from_name() when link file

2015-01-08 15:10:51 -08:00

omfs

FS/OMFS: block number sanity check during fill_super operation

2014-10-14 02:18:22 +02:00

openpromfs

fs: push sync_filesystem() down to the file system's remount_fs()

2014-03-13 10:14:33 -04:00

overlayfs

Merge branch 'iov_iter' into for-next

2014-12-08 20:39:29 -05:00

proc

Merge branch 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2014-12-19 13:26:08 -08:00

pstore

Merge tag 'driver-core-3.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core

2014-12-14 16:10:09 -08:00

qnx4

fs: push sync_filesystem() down to the file system's remount_fs()

2014-03-13 10:14:33 -04:00

qnx6

fs/qnx6: update debugging to current functions

2014-08-08 15:57:26 -07:00

quota

vfs: Remove i_dquot field from inode

2014-11-10 10:06:18 +01:00

ramfs

fs/ramfs/file-nommu.c: replace count*size kzalloc by kcalloc

2014-08-08 15:57:18 -07:00

reiserfs

Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs

2014-12-16 15:46:01 -08:00

romfs

fs/romfs/super.c: add blank line after declarations

2014-08-08 15:57:25 -07:00

squashfs

Squashfs: Add LZ4 compression configuration option

2014-11-27 18:48:44 +00:00

sysfs

sysfs/kernfs: make read requests on pre-alloc files use the buffer.

2014-11-07 10:54:38 -08:00

sysv

write_iter variants of {__,}generic_file_aio_write()

2014-05-06 17:38:00 -04:00

ubifs

UBIFS: fix a couple bugs in UBIFS xattr length calculation

2014-11-07 12:32:22 +02:00

udf

udf: Reduce repeated dereferences

2014-12-21 22:42:37 +01:00

ufs

fs/ufs/balloc.c: remove unused variable

2014-10-14 02:18:20 +02:00

xfs

Merge tag 'xfs-for-linus-3.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/dgc/linux-xfs

2014-12-12 09:48:17 -08:00

aio.c

aio: Skip timer for io_getevents if timeout=0

2014-12-13 17:50:20 -05:00

anon_inodes.c

vfs: Allocate anon_inode_inode in anon_inode_init()

2014-03-27 09:52:54 -07:00

attr.c

fs,userns: Change inode_capable to capable_wrt_inode_uidgid

2014-06-10 13:57:22 -07:00

bad_inode.c

bad_inode: add ->rename2()

2014-08-07 14:40:09 -04:00

binfmt_aout.c

assorted conversions to %p[dD]

2014-11-19 13:01:20 -05:00

binfmt_elf_fdpic.c

handle suicide on late failure exits in execve() in search_binary_handler()

2014-10-09 02:39:00 -04:00

binfmt_elf.c

Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus

2014-12-11 17:56:37 -08:00

binfmt_em86.c

syscalls: implement execveat() system call

2014-12-13 12:42:51 -08:00

binfmt_flat.c

fs/binfmt_flat.c: make old_reloc() static

2014-06-04 16:54:21 -07:00

binfmt_misc.c

unfuck binfmt_misc.c (broken by commit e6084d4)

2014-12-17 08:27:14 -05:00

binfmt_script.c

syscalls: implement execveat() system call

2014-12-13 12:42:51 -08:00

binfmt_som.c

…

block_dev.c

fs: add freeze_super/thaw_super fs hooks

2014-11-17 10:35:17 +00:00

buffer.c

fs: clarify rate limit suppressed buffer I/O errors

2014-10-21 13:55:11 -06:00

char_dev.c

fs/char_dev.c: remove pointless assignment from __register_chrdev_region()

2014-12-10 17:41:04 -08:00

compat_binfmt_elf.c

binfmt_elf: add ELF_HWCAP2 to compat auxv entries

2014-03-04 08:05:21 +00:00

compat_ioctl.c

Bluetooth: Move HCI socket definitions into its own header file

2014-07-11 13:53:04 +03:00

compat.c

vfs: make first argument of dir_context.actor typed

2014-10-31 17:48:54 -04:00

coredump.c

coredump: add %i/%I in core_pattern to report the tid of the crashed thread

2014-10-14 02:18:21 +02:00

dcache.c

Merge branch 'iov_iter' into for-next

2014-12-08 20:39:29 -05:00

dcookies.c

fs/compat: fix lookup_dcookie() parameter handling

2014-01-29 16:22:40 -08:00

direct-io.c

fuse: honour max_read and max_write in direct_io mode

2014-09-26 21:16:51 -04:00

drop_caches.c

mm: vmscan: invoke slab shrinkers from shrink_zone()

2014-12-13 12:42:48 -08:00

eventfd.c

fs: Convert show_fdinfo functions to void

2014-11-05 14:13:23 -05:00

eventpoll.c

fs: Convert show_fdinfo functions to void

2014-11-05 14:13:23 -05:00

exec.c

syscalls: implement execveat() system call

2014-12-13 12:42:51 -08:00

fcntl.c

vfs: renumber FMODE_NONOTIFY and add to uniqueness check

2015-01-08 15:10:52 -08:00

fhandle.c

…

file_table.c

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

2014-10-13 11:28:42 +02:00

file.c

fs/file.c: replace get_unused_fd() with get_unused_fd_flags(0)

2014-12-10 17:41:10 -08:00

filesystems.c

sys_sysfs: Add CONFIG_SYSFS_SYSCALL

2014-04-03 16:21:05 -07:00

fs_pin.c

make fs/{namespace,super}.c forget about acct.h

2014-08-07 14:40:09 -04:00

fs_struct.c

…

fs-writeback.c

writeback: fix a subtle race condition in I_DIRTY clearing

2014-11-04 10:42:23 -07:00

inode.c

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

2014-12-16 15:53:03 -08:00

internal.h

take the targets of /proc/*/ns/* symlinks to separate fs

2014-12-10 21:30:20 -05:00

ioctl.c

Merge branch 'for-3.19' of git://linux-nfs.org/~bfields/linux

2014-12-16 15:25:31 -08:00

Kconfig

overlay filesystem

2014-10-24 00:14:38 +02:00

Kconfig.binfmt

binfmt_elf: allow arch code to examine PT_LOPROC ... PT_HIPROC headers

2014-11-24 07:45:02 +01:00

libfs.c

move d_rcu from overlapping d_child to overlapping d_alias

2014-11-03 15:20:29 -05:00

locks.c

locks: flock_make_lock should return a struct file_lock (or PTR_ERR)

2014-10-07 14:06:13 -04:00

Makefile

Merge branch 'nsfs' into for-next

2014-12-10 21:31:59 -05:00

mbcache.c

fs/mbcache: replace __builtin_log2() with ilog2()

2014-06-25 22:08:29 -04:00

mount.h

common object embedded into various struct ....ns

2014-12-04 14:31:00 -05:00

mpage.c

vfs: guard end of device for mpage interface

2014-10-09 22:25:53 -04:00

namei.c

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

2014-12-16 15:53:03 -08:00

namespace.c

mnt: Fix a memory stomp in umount

2014-12-18 11:22:02 -08:00

no-block.c

…

nsfs.c

take the targets of /proc/*/ns/* symlinks to separate fs

2014-12-10 21:30:20 -05:00

open.c

Merge branch 'for-3.19' of git://linux-nfs.org/~bfields/linux

2014-12-16 15:25:31 -08:00

pipe.c

new helper: copy_page_from_iter()

2014-05-06 17:39:42 -04:00

pnode.c

mnt: Move the clear of MNT_LOCKED from copy_tree to it's callers.

2014-12-02 10:46:50 -06:00

pnode.h

smarter propagate_mnt()

2014-04-01 23:19:08 -04:00

posix_acl.c

posix_acl: handle NULL ACL in posix_acl_equiv_mode

2014-05-06 13:58:42 -04:00

proc_namespace.c

vfs: make mounts and mountstats honor root dir like mountinfo does

2014-12-17 08:27:15 -05:00

read_write.c

Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security

2014-12-14 20:36:37 -08:00

readdir.c

vfs: make first argument of dir_context.actor typed

2014-10-31 17:48:54 -04:00

select.c

…

seq_file.c

fs, seq_file: fallback to vmalloc instead of oom kill processes

2014-12-13 12:42:49 -08:00

signalfd.c

fs: Convert show_fdinfo functions to void

2014-11-05 14:13:23 -05:00

splice.c

vfs: export do_splice_direct() to modules

2014-10-24 00:14:35 +02:00

stack.c

fs: fix comment for 'CONFIG_LBADF'

2014-08-26 09:35:56 +02:00

stat.c

…

statfs.c

…

super.c

vfs: Remove i_dquot field from inode

2014-11-10 10:06:18 +01:00

sync.c

kill f_dentry uses

2014-11-19 13:01:25 -05:00

timerfd.c

fs: Convert show_fdinfo functions to void

2014-11-05 14:13:23 -05:00

utimes.c

…

xattr.c

new helper: audit_file()

2014-11-19 13:01:26 -05:00