md/raid5: never wait for bad-block acks on failed device.
Once a device is failed we really want to completely ignore it. It should go away soon anyway. In particular the presence of bad blocks on it should not cause us to block as we won't be trying to write there anyway. So as soon as we can check if a device is Faulty, do so and pretend that it is already gone if it is Faulty. Signed-off-by: NeilBrown <neilb@suse.de>
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@ -3036,6 +3036,8 @@ static void analyse_stripe(struct stripe_head *sh, struct stripe_head_state *s)
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if (dev->written)
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s->written++;
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rdev = rcu_dereference(conf->disks[i].rdev);
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if (rdev && test_bit(Faulty, &rdev->flags))
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rdev = NULL;
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if (rdev) {
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is_bad = is_badblock(rdev, sh->sector, STRIPE_SECTORS,
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&first_bad, &bad_sectors);
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@ -3063,7 +3065,7 @@ static void analyse_stripe(struct stripe_head *sh, struct stripe_head_state *s)
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}
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} else if (test_bit(In_sync, &rdev->flags))
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set_bit(R5_Insync, &dev->flags);
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else if (!test_bit(Faulty, &rdev->flags)) {
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else {
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/* in sync if before recovery_offset */
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if (sh->sector + STRIPE_SECTORS <= rdev->recovery_offset)
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set_bit(R5_Insync, &dev->flags);
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