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authorXiaoli Feng <fengxiaoli0714@gmail.com>2019-03-16 04:43:30 +0300
committerAnna Schumaker <Anna.Schumaker@Netapp.com>2019-04-25 21:18:15 +0300
commitce96e888fe48ecfa868c9a39adc03292c78a80ff (patch)
tree0fd26e77eba263781605506c0ab9b6c16abeab34 /fs/nfs/nfs4file.c
parentc79d183ebb76311ed434bd558279769551d02d5a (diff)
downloadlinux-ce96e888fe48ecfa868c9a39adc03292c78a80ff.tar.xz
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>
Diffstat (limited to 'fs/nfs/nfs4file.c')
-rw-r--r--fs/nfs/nfs4file.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/nfs/nfs4file.c b/fs/nfs/nfs4file.c
index d2846f164997..cf42a8b939e3 100644
--- a/fs/nfs/nfs4file.c
+++ b/fs/nfs/nfs4file.c
@@ -187,7 +187,7 @@ 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_ADVISORY)
+ if (remap_flags & ~(REMAP_FILE_DEDUP | REMAP_FILE_ADVISORY))
return -EINVAL;
/* check alignment w.r.t. clone_blksize */