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f2fs: don't allow volatile writes for non-regular file

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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>
This commit is contained in:
Chao Yu 2017-03-17 15:43:57 +08:00 committed by Jaegeuk Kim
parent e811898c97
commit 8ff0971f15
1 changed files with 3 additions and 0 deletions
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fs/f2fs/file.c
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@ -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;