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NFSv4.2: error out when relink swapfile

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[ Upstream commit f5fdf1243f ]

This fixes xfstests generic/356 failure on NFSv4.2.

Signed-off-by: Murphy Zhou <jencce.kernel@gmail.com>
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Murphy Zhou
2020-02-14 22:34:09 +08:00
committed by Greg Kroah-Hartman
parent 264e3f1597
commit 59bafdc994
1 changed files with 3 additions and 0 deletions
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3
fs/nfs/nfs4file.c
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@@ -210,6 +210,9 @@ static loff_t nfs42_remap_file_range(struct file *src_file, loff_t src_off,
if (remap_flags & ~REMAP_FILE_ADVISORY)
return -EINVAL;
if (IS_SWAPFILE(dst_inode) || IS_SWAPFILE(src_inode))
return -ETXTBSY;
/* check alignment w.r.t. clone_blksize */
ret = -EINVAL;
if (bs) {