From 87fc767b832ef5a681a0ff9d203c3289bc3be2bf Mon Sep 17 00:00:00 2001
From: NeilBrown <neilb@suse.de>
Date: Fri, 9 Sep 2005 16:24:04 -0700
Subject: [PATCH] [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>
---
drivers/md/raid10.c | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c
index 834bf0f862225..5bd1e9ec899d8 100644
--- a/drivers/md/raid10.c
+++ b/drivers/md/raid10.c
@@ -1474,7 +1474,13 @@ static sector_t sync_request(mddev_t *mddev, sector_t sector_nr, int *skipped, i
}
}
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) {
--
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