diff options
Diffstat (limited to 'block/blk-core.c')
| -rw-r--r-- | block/blk-core.c | 20 |
1 files changed, 14 insertions, 6 deletions
diff --git a/block/blk-core.c b/block/blk-core.c index 3bc5579d6f5..f84cce42fc5 100644 --- a/block/blk-core.c +++ b/block/blk-core.c @@ -467,6 +467,9 @@ static int blk_init_free_list(struct request_queue *q) { struct request_list *rl = &q->rq; + if (unlikely(rl->rq_pool)) + return 0; + rl->count[BLK_RW_SYNC] = rl->count[BLK_RW_ASYNC] = 0; rl->starved[BLK_RW_SYNC] = rl->starved[BLK_RW_ASYNC] = 0; rl->elvpriv = 0; @@ -570,9 +573,17 @@ EXPORT_SYMBOL(blk_init_queue); struct request_queue * blk_init_queue_node(request_fn_proc *rfn, spinlock_t *lock, int node_id) { - struct request_queue *q = blk_alloc_queue_node(GFP_KERNEL, node_id); + struct request_queue *uninit_q, *q; + + uninit_q = blk_alloc_queue_node(GFP_KERNEL, node_id); + if (!uninit_q) + return NULL; + + q = blk_init_allocated_queue_node(uninit_q, rfn, lock, node_id); + if (!q) + blk_cleanup_queue(uninit_q); - return blk_init_allocated_queue_node(q, rfn, lock, node_id); + return q; } EXPORT_SYMBOL(blk_init_queue_node); @@ -592,10 +603,8 @@ blk_init_allocated_queue_node(struct request_queue *q, request_fn_proc *rfn, return NULL; q->node = node_id; - if (blk_init_free_list(q)) { - kmem_cache_free(blk_requestq_cachep, q); + if (blk_init_free_list(q)) return NULL; - } q->request_fn = rfn; q->prep_rq_fn = NULL; @@ -618,7 +627,6 @@ blk_init_allocated_queue_node(struct request_queue *q, request_fn_proc *rfn, return q; } - blk_put_queue(q); return NULL; } EXPORT_SYMBOL(blk_init_allocated_queue_node); |