diff options
Diffstat (limited to 'crypto/cryptd.c')
| -rw-r--r-- | crypto/cryptd.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/crypto/cryptd.c b/crypto/cryptd.c index 5bb6f8d88cc2..efff54e707cb 100644 --- a/crypto/cryptd.c +++ b/crypto/cryptd.c @@ -34,6 +34,7 @@ MODULE_PARM_DESC(cryptd_max_cpu_qlen, "Set cryptd Max queue depth"); static struct workqueue_struct *cryptd_wq; struct cryptd_cpu_queue { + local_lock_t bh_lock; struct crypto_queue queue; struct work_struct work; }; @@ -110,6 +111,7 @@ static int cryptd_init_queue(struct cryptd_queue *queue, cpu_queue = per_cpu_ptr(queue->cpu_queue, cpu); crypto_init_queue(&cpu_queue->queue, max_cpu_qlen); INIT_WORK(&cpu_queue->work, cryptd_queue_worker); + local_lock_init(&cpu_queue->bh_lock); } pr_info("cryptd: max_cpu_qlen set to %d\n", max_cpu_qlen); return 0; @@ -135,6 +137,7 @@ static int cryptd_enqueue_request(struct cryptd_queue *queue, refcount_t *refcnt; local_bh_disable(); + local_lock_nested_bh(&queue->cpu_queue->bh_lock); cpu_queue = this_cpu_ptr(queue->cpu_queue); err = crypto_enqueue_request(&cpu_queue->queue, request); @@ -151,6 +154,7 @@ static int cryptd_enqueue_request(struct cryptd_queue *queue, refcount_inc(refcnt); out: + local_unlock_nested_bh(&queue->cpu_queue->bh_lock); local_bh_enable(); return err; @@ -169,8 +173,10 @@ static void cryptd_queue_worker(struct work_struct *work) * Only handle one request at a time to avoid hogging crypto workqueue. */ local_bh_disable(); + __local_lock_nested_bh(&cpu_queue->bh_lock); backlog = crypto_get_backlog(&cpu_queue->queue); req = crypto_dequeue_request(&cpu_queue->queue); + __local_unlock_nested_bh(&cpu_queue->bh_lock); local_bh_enable(); if (!req) |