| Date | Mon, 10 May 2010 15:35:37 -0700 | From | Greg KH <> | Subject | [85/98] md/raid6: Fix raid-6 read-error correction in degraded state |
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2.6.32-stable review patch. If anyone has any objections, please let us know.
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From: Gabriele A. Trombetti <g.trombetti.lkrnl1213@logicschema.com>
commit 87aa63000c484bfb9909989316f615240dfee018 upstream.
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.
Tested-by: Janos Haar <janos.haar@netcenter.hu> Signed-off-by: Gabriele A. Trombetti <g.trombetti.lkrnl1213@logicschema.com> Reported-by: Janos Haar <janos.haar@netcenter.hu> Signed-off-by: NeilBrown <neilb@suse.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
--- drivers/md/raid5.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/md/raid5.c +++ b/drivers/md/raid5.c @@ -1526,7 +1526,7 @@ 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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