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authorJaegeuk Kim <jaegeuk@kernel.org>2017-03-17 03:04:15 +0100
committerJaegeuk Kim <jaegeuk@kernel.org>2017-03-22 03:34:17 +0100
commite811898c97f83aef6c1652fbfbf5294bf542159c (patch)
treed8d7b467de8a5635bd8ac4155052f7073ad8f28d /fs/f2fs/file.c
parentf2fs: fix stale ATOMIC_WRITTEN_PAGE private pointer (diff)
downloadlinux-e811898c97f83aef6c1652fbfbf5294bf542159c.tar.xz
linux-e811898c97f83aef6c1652fbfbf5294bf542159c.zip
f2fs: don't allow atomic writes for not regular files
The atomic writes only supports regular files for database. Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'fs/f2fs/file.c')
-rw-r--r--fs/f2fs/file.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
index 3212dfa1a50e..2cf16ed5b74c 100644
--- a/fs/f2fs/file.c
+++ b/fs/f2fs/file.c
@@ -1518,6 +1518,9 @@ static int f2fs_ioc_start_atomic_write(struct file *filp)
if (!inode_owner_or_capable(inode))
return -EACCES;
+ if (!S_ISREG(inode->i_mode))
+ return -EINVAL;
+
ret = mnt_want_write_file(filp);
if (ret)
return ret;