diff --git a/[refs] b/[refs] index 108d4200b256..eb7ad4627cea 100644 --- a/[refs] +++ b/[refs] @@ -1,2 +1,2 @@ --- -refs/heads/master: 233886dd32ad71daf9c21bf3728c0933a94870f0 +refs/heads/master: 7692c5dd48026d952199c2b97c3418f927cc0407 diff --git a/trunk/drivers/md/dm-raid1.c b/trunk/drivers/md/dm-raid1.c index 2375709a392c..6b0fc1670929 100644 --- a/trunk/drivers/md/dm-raid1.c +++ b/trunk/drivers/md/dm-raid1.c @@ -376,16 +376,18 @@ static void rh_inc(struct region_hash *rh, region_t region) read_lock(&rh->hash_lock); reg = __rh_find(rh, region); + spin_lock_irq(&rh->region_lock); atomic_inc(®->pending); - spin_lock_irq(&rh->region_lock); if (reg->state == RH_CLEAN) { - rh->log->type->mark_region(rh->log, reg->key); - reg->state = RH_DIRTY; list_del_init(®->list); /* take off the clean list */ - } - spin_unlock_irq(&rh->region_lock); + spin_unlock_irq(&rh->region_lock); + + rh->log->type->mark_region(rh->log, reg->key); + } else + spin_unlock_irq(&rh->region_lock); + read_unlock(&rh->hash_lock); } @@ -408,21 +410,17 @@ static void rh_dec(struct region_hash *rh, region_t region) reg = __rh_lookup(rh, region); read_unlock(&rh->hash_lock); + spin_lock_irqsave(&rh->region_lock, flags); if (atomic_dec_and_test(®->pending)) { - spin_lock_irqsave(&rh->region_lock, flags); - if (atomic_read(®->pending)) { /* check race */ - spin_unlock_irqrestore(&rh->region_lock, flags); - return; - } if (reg->state == RH_RECOVERING) { list_add_tail(®->list, &rh->quiesced_regions); } else { reg->state = RH_CLEAN; list_add(®->list, &rh->clean_regions); } - spin_unlock_irqrestore(&rh->region_lock, flags); should_wake = 1; } + spin_unlock_irqrestore(&rh->region_lock, flags); if (should_wake) wake();