[PATCH] md: fix BUG when raid10 rebuilds without enough drives
This shouldn't be a BUG. We should cope.
Signed-off-by: Neil Brown <neilb@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c
index 834bf0f..5bd1e9e 100644
--- a/drivers/md/raid10.c
+++ b/drivers/md/raid10.c
@@ -1474,7 +1474,13 @@
}
}
if (j == conf->copies) {
- BUG();
+ /* Cannot recover, so abort the recovery */
+ put_buf(r10_bio);
+ r10_bio = rb2;
+ if (!test_and_set_bit(MD_RECOVERY_ERR, &mddev->recovery))
+ printk(KERN_INFO "raid10: %s: insufficient working devices for recovery.\n",
+ mdname(mddev));
+ break;
}
}
if (biolist == NULL) {