Fix raid-6 read-error correction in degraded state

PATCH New MRK 1 participant 1 message Apr 28, 2010 MD RAID

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2010-04-28 14:07 UTC #0 lore raw

PATCH 1/1 Fix raid-6 read-error correction in degraded state

Fix: Raid-6 was not trying to correct a read-error when in singly-degraded state and was instead dropping one more device, going to doubly-degraded state. This patch fixes this behaviour.

Signed-off-by Gabriele A. Trombetti <[email protected]>

Reported-by Janos Haar <[email protected]>

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drivers/md/raid5.c 2010-04-28 13:08:15.000000000 +0200 renamed from drivers/md/raid5.c 2010-04-28 13:05:03.000000000 +0200 +1 -1

@@ -1527,7 +1527,7 @@ static void raid5_end_read_request(struc
 
                clear_bit(R5_UPTODATE, &sh->dev[i].flags);
                atomic_inc(&rdev->read_errors);
-               if (conf->mddev->degraded)
+               if (conf->mddev->degraded >= conf->max_degraded)
                        printk_rl(KERN_WARNING
                                  "raid5:%s: read error not correctable "
                                  "(sector %llu on %s).\n",

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Thanks,
Gabriele A. Trombetti