f2fs: make atomic/volatile operation exclusive
authorChao Yu <yuchao0@huawei.com>
Mon, 9 May 2016 11:56:33 +0000 (19:56 +0800)
committerJaegeuk Kim <jaegeuk@kernel.org>
Wed, 11 May 2016 16:56:34 +0000 (09:56 -0700)
commit0fac558b96584799876498248020dc49a98bd131
treee0de3f5ec34c7b4a98a090aa3e403ebb251d60ae
parent7fb17fe44b70c854d380686d8b7e63217f9f1dcf
f2fs: make atomic/volatile operation exclusive

atomic/volatile ioctl interfaces are exposed to user like other file
operation interface, it needs to make them getting exclusion against
to each other to avoid potential conflict among these operations
in concurrent scenario.

Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
fs/f2fs/file.c