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(parent: 142cd0e) | patch
f2fs: use mnt_{want,drop}_write_file in ioctl
authorChao Yu <yuchao0@huawei.com>
Mon, 9 May 2016 11:56:32 +0000 (19:56 +0800)
committerJaegeuk Kim <jaegeuk@kernel.org>
Wed, 11 May 2016 16:56:32 +0000 (09:56 -0700)
commit1f39cd772daade05c2977dabe4f341680aeba42f
tree66c5a2b4945407eb8e95fd63b28c45716ca138aetree | snapshot
parent142cd0ee7d766b34f097a2a01fd03a59965969c2commit | diff
f2fs: use mnt_{want,drop}_write_file in ioctl

In interfaces of ioctl, mnt_{want,drop}_write_file should be used for:
- get exclusion against file system freezing which may used by lvm
  snapshot.
- do telling filesystem that a write is about to be performed on it, and
  make sure that the writes are permitted.

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