To return EOPNOTSUPP is more user friendly than to return EINVAL,
and then user-space tool will show that the dev_replace operation
for raid56 is not currently supported rather than showing that
there is an invalid argument.
Signed-off-by: Gui Hecheng <guihc.f...@cn.fujitsu.com>
---
fs/btrfs/dev-replace.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/fs/btrfs/dev-replace.c b/fs/btrfs/dev-replace.c
index 9f22905..2af6e66 100644
--- a/fs/btrfs/dev-replace.c
+++ b/fs/btrfs/dev-replace.c
@@ -313,7 +313,7 @@ int btrfs_dev_replace_start(struct btrfs_root *root,
if (btrfs_fs_incompat(fs_info, RAID56)) {
btrfs_warn(fs_info, "dev_replace cannot yet handle
RAID5/RAID6");
- return -EINVAL;
+ return -EOPNOTSUPP;
}
switch (args->start.cont_reading_from_srcdev_mode) {
--
1.8.1.4
--
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