Fix nfs4.2 return -EINVAL when do dedupe operation
dedupe_file_range operations is combiled into remap_file_range. But in nfs42_remap_file_range, it's skiped for dedupe operations. Before this patch: # dd if=/dev/zero of=nfs/file bs=1M count=1 # xfs_io -c "dedupe nfs/file 4k 64k 4k" nfs/file XFS_IOC_FILE_EXTENT_SAME: Invalid argument After this patch: # dd if=/dev/zero of=nfs/file bs=1M count=1 # xfs_io -c "dedupe nfs/file 4k 64k 4k" nfs/file deduped 4096/4096 bytes at offset 65536 4 KiB, 1 ops; 0.0046 sec (865.988 KiB/sec and 216.4971 ops/sec) Signed-off-by: Xiaoli Feng <fengxiaoli0714@gmail.com> Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
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@ -187,7 +187,7 @@ static loff_t nfs42_remap_file_range(struct file *src_file, loff_t src_off,
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bool same_inode = false;
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int ret;
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if (remap_flags & ~REMAP_FILE_ADVISORY)
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if (remap_flags & ~(REMAP_FILE_DEDUP | REMAP_FILE_ADVISORY))
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return -EINVAL;
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/* check alignment w.r.t. clone_blksize */
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