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authorChao Yu2017-03-17 15:43:57 +0800
committerJaegeuk Kim2017-03-21 22:34:18 -0400
commit8ff0971f1500953935339c23c91f660793fd4c64 (patch)
treefc4dd10c962c65488f03a6cf690564d433b3f500 /fs
parente811898c97f83aef6c1652fbfbf5294bf542159c (diff)
f2fs: don't allow volatile writes for non-regular file
Now f2fs only supports volatile writes for journal db regular file. Signed-off-by: Chao Yu <yuchao0@huawei.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'fs')
-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 2cf16ed5b74c..427ab1b41de3 100644
--- a/fs/f2fs/file.c
+++ b/fs/f2fs/file.c
@@ -1598,6 +1598,9 @@ static int f2fs_ioc_start_volatile_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;