Commit 9026b3a9 authored by Darrick J. Wong's avatar Darrick J. Wong Committed by Trond Myklebust
Browse files

nfs: disable client side deduplication 



The NFS protocol doesn't support deduplication, so turn it off again.

Fixes: ce96e888 ("Fix nfs4.2 return -EINVAL when do dedupe operation")
Signed-off-by: default avatarDarrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: default avatarTrond Myklebust <trond.myklebust@hammerspace.com>
parent 1a7441b2

fs/nfs/nfs4file.c

+5 −1
Original line number Diff line number Diff line
@@ -187,7 +187,11 @@ static loff_t nfs42_remap_file_range(struct file *src_file, loff_t src_off, 
	bool same_inode = false;

	int ret;



	if (remap_flags & ~(REMAP_FILE_DEDUP | REMAP_FILE_ADVISORY))

	/* NFS does not support deduplication. */

	if (remap_flags & REMAP_FILE_DEDUP)

		return -EOPNOTSUPP;



	if (remap_flags & ~REMAP_FILE_ADVISORY)

		return -EINVAL;



	/* check alignment w.r.t. clone_blksize */

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