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Date: Fri, 17 Mar 2017 11:32:17 +0800 From: Chao Yu <yuchao0@...wei.com> To: <jaegeuk@...nel.org> CC: <linux-f2fs-devel@...ts.sourceforge.net>, <linux-kernel@...r.kernel.org>, <chao@...nel.org>, Chao Yu <yuchao0@...wei.com> Subject: [PATCH] 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@...wei.com> --- fs/f2fs/file.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c index d486e02b43c2..e090d34f732d 100644 --- a/fs/f2fs/file.c +++ b/fs/f2fs/file.c @@ -1593,6 +1593,9 @@ static int f2fs_ioc_start_volatile_write(struct file *filp) if (!inode_owner_or_capable(inode)) return -EACCES; + if (!S_ISREG(inode)) + return -EINVAL; + ret = mnt_want_write_file(filp); if (ret) return ret; -- 2.8.2.295.g3f1c1d0
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