This depends on the kernel patch:
[PATCH] btrfs:replace EINVAL with EOPNOTSUPP for dev_replace
This catches the EOPNOTSUPP and output msg that says dev_replace raid56
is not currently supported. Note that the msg will only be shown when
run dev_replace not in background.
Signed-off-by: Gui Hecheng <guihc.f...@cn.fujitsu.com>
---
cmds-replace.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/cmds-replace.c b/cmds-replace.c
index 9eb981b..8b18110 100644
--- a/cmds-replace.c
+++ b/cmds-replace.c
@@ -301,6 +301,10 @@ static int cmd_start_replace(int argc, char **argv)
"ERROR: ioctl(DEV_REPLACE_START) failed on
\"%s\": %s, %s\n",
path, strerror(errno),
replace_dev_result2string(start_args.result));
+
+ if (errno == EOPNOTSUPP)
+ fprintf(stderr, "WARNING: dev_replace cannot
yet handle RAID5/RAID6\n");
+
goto leave_with_error;
}
--
1.8.1.4
--
To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in
the body of a message to majord...@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
