[PATCH] md: report spare drives in /proc/mdstat

Just like failed drives have (F), so spare drives now have (S).

Signed-off-by: Neil Brown <neilb@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 2 insertions, 1 deletions

diff --git a/drivers/md/md.c b/drivers/md/md.c
index 0a13016829da..f27e8f644dfe 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -3334,7 +3334,8 @@ static int md_seq_show(struct seq_file *seq, void *v)
                         if (rdev->faulty) {
                                 seq_printf(seq, "(F)");
                                 continue;
-                        }
+                        } else if (rdev->raid_disk < 0)
+                                seq_printf(seq, "(S)"); /* spare */
                         size += rdev->size;
                 }