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md/raid5: clear R5_NeedReplace when no longer needed. 

This flag is currently never cleared, which can in rare cases
trigger a warn-on if it is still set but the block isn't
InSync.

So clear it when it isn't need, which includes if the replacement
device has failed.

Signed-off-by: NeilBrown <neilb@suse.com>
hifive-unleashed-5.1
NeilBrown 2015-07-17 13:26:23 +10:00
parent 90382ed9af
commit e6030cb06c
1 changed files with 3 additions and 1 deletions
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4
drivers/md/raid5.c
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@ -4066,8 +4066,10 @@ static void analyse_stripe(struct stripe_head *sh, struct stripe_head_state *s)
&first_bad, &bad_sectors))
set_bit(R5_ReadRepl, &dev->flags);
else {
if (rdev)
if (rdev && !test_bit(Faulty, &rdev->flags))
set_bit(R5_NeedReplace, &dev->flags);
else
clear_bit(R5_NeedReplace, &dev->flags);
rdev = rcu_dereference(conf->disks[i].rdev);
clear_bit(R5_ReadRepl, &dev->flags);
}