diff --git a/block/blk-core.c b/block/blk-core.c
index 29b08428ae459722c32a9927c8a50e6bd202a7a9..7c54c195e79e87ffc03d5ae1e12d38367e11d1f2 100644
--- a/block/blk-core.c
+++ b/block/blk-core.c
@@ -801,7 +801,7 @@ EXPORT_SYMBOL(blk_alloc_queue);
* @q: request queue pointer
* @flags: BLK_MQ_REQ_NOWAIT and/or BLK_MQ_REQ_PREEMPT
*/
-int blk_queue_enter(struct request_queue *q, unsigned int flags)
+int blk_queue_enter(struct request_queue *q, blk_mq_req_flags_t flags)
{
const bool preempt = flags & BLK_MQ_REQ_PREEMPT;
@@ -1225,7 +1225,7 @@ int blk_update_nr_requests(struct request_queue *q, unsigned int nr)
* Returns request pointer on success, with @q->queue_lock *not held*.
*/
static struct request *__get_request(struct request_list *rl, unsigned int op,
- struct bio *bio, unsigned int flags)
+ struct bio *bio, blk_mq_req_flags_t flags)
{
struct request_queue *q = rl->q;
struct request *rq;
@@ -1408,7 +1408,7 @@ static struct request *__get_request(struct request_list *rl, unsigned int op,
* Returns request pointer on success, with @q->queue_lock *not held*.
*/
static struct request *get_request(struct request_queue *q, unsigned int op,
- struct bio *bio, unsigned int flags)
+ struct bio *bio, blk_mq_req_flags_t flags)
{
const bool is_sync = op_is_sync(op);
DEFINE_WAIT(wait);
@@ -1458,7 +1458,7 @@ static struct request *get_request(struct request_queue *q, unsigned int op,
/* flags: BLK_MQ_REQ_PREEMPT and/or BLK_MQ_REQ_NOWAIT. */
static struct request *blk_old_get_request(struct request_queue *q,
- unsigned int op, unsigned int flags)
+ unsigned int op, blk_mq_req_flags_t flags)
{
struct request *rq;
gfp_t gfp_mask = flags & BLK_MQ_REQ_NOWAIT ? GFP_ATOMIC :
@@ -1495,7 +1495,7 @@ static struct request *blk_old_get_request(struct request_queue *q,
* @flags: BLK_MQ_REQ_* flags, e.g. BLK_MQ_REQ_NOWAIT.
*/
struct request *blk_get_request_flags(struct request_queue *q, unsigned int op,
- unsigned int flags)
+ blk_mq_req_flags_t flags)
{
struct request *req;
@@ -2291,7 +2291,7 @@ blk_qc_t generic_make_request(struct bio *bio)
current->bio_list = bio_list_on_stack;
do {
struct request_queue *q = bio->bi_disk->queue;
- unsigned int flags = bio->bi_opf & REQ_NOWAIT ?
+ blk_mq_req_flags_t flags = bio->bi_opf & REQ_NOWAIT ?
BLK_MQ_REQ_NOWAIT : 0;
if (likely(blk_queue_enter(q, flags) == 0)) {
diff --git a/block/blk-mq.c b/block/blk-mq.c
index 211bc8a3e2cc48f37993fdedeee5ae9dd694f522..bfe24a5b62a360209a445cb619aa8d66465fdaf5 100644
--- a/block/blk-mq.c
+++ b/block/blk-mq.c
@@ -383,7 +383,7 @@ static struct request *blk_mq_get_request(struct request_queue *q,
}
struct request *blk_mq_alloc_request(struct request_queue *q, unsigned int op,
- unsigned int flags)
+ blk_mq_req_flags_t flags)
{
struct blk_mq_alloc_data alloc_data = { .flags = flags };
struct request *rq;
@@ -409,7 +409,7 @@ struct request *blk_mq_alloc_request(struct request_queue *q, unsigned int op,
EXPORT_SYMBOL(blk_mq_alloc_request);
struct request *blk_mq_alloc_request_hctx(struct request_queue *q,
- unsigned int op, unsigned int flags, unsigned int hctx_idx)
+ unsigned int op, blk_mq_req_flags_t flags, unsigned int hctx_idx)
{
struct blk_mq_alloc_data alloc_data = { .flags = flags };
struct request *rq;
diff --git a/block/blk-mq.h b/block/blk-mq.h
index 2502f40ccdc07d77abddd3c761132b441bb1f2f4..99a19c5523e2ba9b6e5525208f497ea231c5d66c 100644
--- a/block/blk-mq.h
+++ b/block/blk-mq.h
@@ -111,7 +111,7 @@ static inline void blk_mq_put_ctx(struct blk_mq_ctx *ctx)
struct blk_mq_alloc_data {
/* input parameter */
struct request_queue *q;
- unsigned int flags;
+ blk_mq_req_flags_t flags;
unsigned int shallow_depth;
/* input & output parameter */
diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c
index 683d890d73fa3d27035bed062131edd624c44ef2..878d5c09d15b2905fa1ce576085fa5ecf2019cf1 100644
--- a/drivers/nvme/host/core.c
+++ b/drivers/nvme/host/core.c
@@ -305,7 +305,7 @@ static void nvme_put_ns(struct nvme_ns *ns)
}
struct request *nvme_alloc_request(struct request_queue *q,
- struct nvme_command *cmd, unsigned int flags, int qid)
+ struct nvme_command *cmd, blk_mq_req_flags_t flags, int qid)
{
unsigned op = nvme_is_write(cmd) ? REQ_OP_DRV_OUT : REQ_OP_DRV_IN;
struct request *req;
@@ -573,7 +573,8 @@ EXPORT_SYMBOL_GPL(nvme_setup_cmd);
*/
int __nvme_submit_sync_cmd(struct request_queue *q, struct nvme_command *cmd,
union nvme_result *result, void *buffer, unsigned bufflen,
- unsigned timeout, int qid, int at_head, int flags)
+ unsigned timeout, int qid, int at_head,
+ blk_mq_req_flags_t flags)
{
struct request *req;
int ret;
diff --git a/drivers/nvme/host/nvme.h b/drivers/nvme/host/nvme.h
index 7b9cc7d616b75a695e890840d86a37edf58e78ea..23b8504ace7fae584939b2ec186232d067ade22e 100644
--- a/drivers/nvme/host/nvme.h
+++ b/drivers/nvme/host/nvme.h
@@ -327,14 +327,15 @@ int nvme_reinit_tagset(struct nvme_ctrl *ctrl, struct blk_mq_tag_set *set);
#define NVME_QID_ANY -1
struct request *nvme_alloc_request(struct request_queue *q,
- struct nvme_command *cmd, unsigned int flags, int qid);
+ struct nvme_command *cmd, blk_mq_req_flags_t flags, int qid);
blk_status_t nvme_setup_cmd(struct nvme_ns *ns, struct request *req,
struct nvme_command *cmd);
int nvme_submit_sync_cmd(struct request_queue *q, struct nvme_command *cmd,
void *buf, unsigned bufflen);
int __nvme_submit_sync_cmd(struct request_queue *q, struct nvme_command *cmd,
union nvme_result *result, void *buffer, unsigned bufflen,
- unsigned timeout, int qid, int at_head, int flags);
+ unsigned timeout, int qid, int at_head,
+ blk_mq_req_flags_t flags);
int nvme_set_queue_count(struct nvme_ctrl *ctrl, int *count);
void nvme_start_keep_alive(struct nvme_ctrl *ctrl);
void nvme_stop_keep_alive(struct nvme_ctrl *ctrl);
diff --git a/include/linux/blk-mq.h b/include/linux/blk-mq.h
index 82b56609736ab1a79a3ecf7d639de6693e5a4ad0..b326208277ee45dab02f704b2aa90dcc970237ea 100644
--- a/include/linux/blk-mq.h
+++ b/include/linux/blk-mq.h
@@ -209,16 +209,21 @@ void blk_mq_free_request(struct request *rq);
bool blk_mq_can_queue(struct blk_mq_hw_ctx *);
enum {
- BLK_MQ_REQ_NOWAIT = (1 << 0), /* return when out of requests */
- BLK_MQ_REQ_RESERVED = (1 << 1), /* allocate from reserved pool */
- BLK_MQ_REQ_INTERNAL = (1 << 2), /* allocate internal/sched tag */
- BLK_MQ_REQ_PREEMPT = (1 << 3), /* set RQF_PREEMPT */
+ /* return when out of requests */
+ BLK_MQ_REQ_NOWAIT = (__force blk_mq_req_flags_t)(1 << 0),
+ /* allocate from reserved pool */
+ BLK_MQ_REQ_RESERVED = (__force blk_mq_req_flags_t)(1 << 1),
+ /* allocate internal/sched tag */
+ BLK_MQ_REQ_INTERNAL = (__force blk_mq_req_flags_t)(1 << 2),
+ /* set RQF_PREEMPT */
+ BLK_MQ_REQ_PREEMPT = (__force blk_mq_req_flags_t)(1 << 3),
};
struct request *blk_mq_alloc_request(struct request_queue *q, unsigned int op,
- unsigned int flags);
+ blk_mq_req_flags_t flags);
struct request *blk_mq_alloc_request_hctx(struct request_queue *q,
- unsigned int op, unsigned int flags, unsigned int hctx_idx);
+ unsigned int op, blk_mq_req_flags_t flags,
+ unsigned int hctx_idx);
struct request *blk_mq_tag_to_rq(struct blk_mq_tags *tags, unsigned int tag);
enum {
diff --git a/include/linux/blk_types.h b/include/linux/blk_types.h
index 1b04085255fb37507ba92e3cc827b1057e88b087..13ccfc9b210ac78a2c99cecce68e1dce4eaf82fc 100644
--- a/include/linux/blk_types.h
+++ b/include/linux/blk_types.h
@@ -162,6 +162,8 @@ struct bio {
*/
#define BIO_RESET_BITS BVEC_POOL_OFFSET
+typedef __u32 __bitwise blk_mq_req_flags_t;
+
/*
* Operations and flags common to the bio and request structures.
* We use 8 bits for encoding the operation, and the remaining 24 for flags.
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index 402c9d536ae10e42d700d456f5ea39dc07b85b53..e80ea1d31343da36b808dfe9f547ad8466d8d091 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -935,7 +935,7 @@ extern void blk_put_request(struct request *);
extern void __blk_put_request(struct request_queue *, struct request *);
extern struct request *blk_get_request_flags(struct request_queue *,
unsigned int op,
- unsigned int flags);
+ blk_mq_req_flags_t flags);
extern struct request *blk_get_request(struct request_queue *, unsigned int op,
gfp_t gfp_mask);
extern void blk_requeue_request(struct request_queue *, struct request *);
@@ -959,7 +959,7 @@ extern int scsi_cmd_ioctl(struct request_queue *, struct gendisk *, fmode_t,
extern int sg_scsi_ioctl(struct request_queue *, struct gendisk *, fmode_t,
struct scsi_ioctl_command __user *);
-extern int blk_queue_enter(struct request_queue *q, unsigned int flags);
+extern int blk_queue_enter(struct request_queue *q, blk_mq_req_flags_t flags);
extern void blk_queue_exit(struct request_queue *q);
extern void blk_start_queue(struct request_queue *q);
extern void blk_start_queue_async(struct request_queue *q);