[PATCH] gfp_t: block layer core

[firefly-linux-kernel-4.4.55.git] / drivers / block / cfq-iosched.c

diff --git a/drivers/block/cfq-iosched.c b/drivers/block/cfq-iosched.c
index 30c0903c7cddfdd46dbdd0de9c8e999c1ed7f349..d3bfe8cfb0397023fcee75237b3350f0eba0a705 100644 (file)
--- a/drivers/block/cfq-iosched.c
+++ b/drivers/block/cfq-iosched.c
@@ -1422,7 +1422,7 @@ static void cfq_exit_io_context(struct cfq_io_context *cic)
 }
 
 static struct cfq_io_context *
-cfq_alloc_io_context(struct cfq_data *cfqd, int gfp_mask)
+cfq_alloc_io_context(struct cfq_data *cfqd, gfp_t gfp_mask)
 {
        struct cfq_io_context *cic = kmem_cache_alloc(cfq_ioc_pool, gfp_mask);
 
@@ -1517,7 +1517,7 @@ static int cfq_ioc_set_ioprio(struct io_context *ioc, unsigned int ioprio)
 
 static struct cfq_queue *
 cfq_get_queue(struct cfq_data *cfqd, unsigned int key, unsigned short ioprio,
-             int gfp_mask)
+             gfp_t gfp_mask)
 {
        const int hashval = hash_long(key, CFQ_QHASH_SHIFT);
        struct cfq_queue *cfqq, *new_cfqq = NULL;
@@ -1578,7 +1578,7 @@ out:
  * cfqq, so we don't need to worry about it disappearing
  */
 static struct cfq_io_context *
-cfq_get_io_context(struct cfq_data *cfqd, pid_t pid, int gfp_mask)
+cfq_get_io_context(struct cfq_data *cfqd, pid_t pid, gfp_t gfp_mask)
 {
        struct io_context *ioc = NULL;
        struct cfq_io_context *cic;
@@ -2075,7 +2075,7 @@ static void cfq_put_request(request_queue_t *q, struct request *rq)
  */
 static int
 cfq_set_request(request_queue_t *q, struct request *rq, struct bio *bio,
-               int gfp_mask)
+               gfp_t gfp_mask)
 {
        struct cfq_data *cfqd = q->elevator->elevator_data;
        struct task_struct *tsk = current;
@@ -2260,6 +2260,8 @@ static void cfq_put_cfqd(struct cfq_data *cfqd)
        if (!atomic_dec_and_test(&cfqd->ref))
                return;
 
+       blk_put_queue(q);
+
        cfq_shutdown_timer_wq(cfqd);
        q->elevator->elevator_data = NULL;
 
@@ -2316,6 +2318,7 @@ static int cfq_init_queue(request_queue_t *q, elevator_t *e)
        e->elevator_data = cfqd;
 
        cfqd->queue = q;
+       atomic_inc(&q->refcnt);
 
        cfqd->max_queued = q->nr_requests / 4;
        q->nr_batching = cfq_queued;