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authorMike Snitzer <snitzer@redhat.com>2015-05-29 21:17:16 +0300
committerMike Snitzer <snitzer@redhat.com>2015-05-29 21:17:16 +0300
commit183f7802e73e26206558864d1b67e64382257277 (patch)
treeb380d7a8db726e7839f50fa07d3f1a1e80589ec3 /include/linux/blkdev.h
parent1c220c69ce0dcc0f234a9f263ad9c0864f971852 (diff)
parentf6454b049d81bb3d732b6a8afde08420589c6af9 (diff)
downloadlinux-183f7802e73e26206558864d1b67e64382257277.tar.xz
Merge remote-tracking branch 'jens/for-4.2/core' into dm-4.2
Diffstat (limited to 'include/linux/blkdev.h')
-rw-r--r--include/linux/blkdev.h42
1 files changed, 5 insertions, 37 deletions
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index 5d93a6645e88..776d2ee43ba6 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -30,7 +30,6 @@ struct scsi_ioctl_command;
struct request_queue;
struct elevator_queue;
-struct request_pm_state;
struct blk_trace;
struct request;
struct sg_io_hdr;
@@ -75,18 +74,7 @@ struct request_list {
enum rq_cmd_type_bits {
REQ_TYPE_FS = 1, /* fs request */
REQ_TYPE_BLOCK_PC, /* scsi command */
- REQ_TYPE_SENSE, /* sense request */
- REQ_TYPE_PM_SUSPEND, /* suspend request */
- REQ_TYPE_PM_RESUME, /* resume request */
- REQ_TYPE_PM_SHUTDOWN, /* shutdown request */
- REQ_TYPE_SPECIAL, /* driver defined type */
- /*
- * for ATA/ATAPI devices. this really doesn't belong here, ide should
- * use REQ_TYPE_SPECIAL and use rq->cmd[0] with the range of driver
- * private REQ_LB opcodes to differentiate what type of request this is
- */
- REQ_TYPE_ATA_TASKFILE,
- REQ_TYPE_ATA_PC,
+ REQ_TYPE_DRV_PRIV, /* driver defined types from here */
};
#define BLK_MAX_CDB 16
@@ -108,7 +96,7 @@ struct request {
struct blk_mq_ctx *mq_ctx;
u64 cmd_flags;
- enum rq_cmd_type_bits cmd_type;
+ unsigned cmd_type;
unsigned long atomic_flags;
int cpu;
@@ -216,19 +204,6 @@ static inline unsigned short req_get_ioprio(struct request *req)
return req->ioprio;
}
-/*
- * State information carried for REQ_TYPE_PM_SUSPEND and REQ_TYPE_PM_RESUME
- * requests. Some step values could eventually be made generic.
- */
-struct request_pm_state
-{
- /* PM state machine step value, currently driver specific */
- int pm_step;
- /* requested PM state value (S1, S2, S3, S4, ...) */
- u32 pm_state;
- void* data; /* for driver use */
-};
-
#include <linux/elevator.h>
struct blk_queue_ctx;
@@ -469,7 +444,7 @@ struct request_queue {
struct mutex sysfs_lock;
int bypass_depth;
- int mq_freeze_depth;
+ atomic_t mq_freeze_depth;
#if defined(CONFIG_BLK_DEV_BSG)
bsg_job_fn *bsg_job_fn;
@@ -610,10 +585,6 @@ static inline void queue_flag_clear(unsigned int flag, struct request_queue *q)
(((rq)->cmd_flags & REQ_STARTED) && \
((rq)->cmd_type == REQ_TYPE_FS))
-#define blk_pm_request(rq) \
- ((rq)->cmd_type == REQ_TYPE_PM_SUSPEND || \
- (rq)->cmd_type == REQ_TYPE_PM_RESUME)
-
#define blk_rq_cpu_valid(rq) ((rq)->cpu != -1)
#define blk_bidi_rq(rq) ((rq)->next_rq != NULL)
/* rq->queuelist of dequeued request must be list_empty() */
@@ -804,11 +775,7 @@ extern void blk_add_request_payload(struct request *rq, struct page *page,
unsigned int len);
extern int blk_rq_check_limits(struct request_queue *q, struct request *rq);
extern int blk_lld_busy(struct request_queue *q);
-extern int blk_rq_prep_clone(struct request *rq, struct request *rq_src,
- struct bio_set *bs, gfp_t gfp_mask,
- int (*bio_ctr)(struct bio *, struct bio *, void *),
- void *data);
-extern void blk_rq_unprep_clone(struct request *rq);
+extern void blk_rq_prep_clone(struct request *rq, struct request *rq_src);
extern int blk_insert_cloned_request(struct request_queue *q,
struct request *rq);
extern void blk_delay_queue(struct request_queue *, unsigned long);
@@ -845,6 +812,7 @@ extern void blk_stop_queue(struct request_queue *q);
extern void blk_sync_queue(struct request_queue *q);
extern void __blk_stop_queue(struct request_queue *q);
extern void __blk_run_queue(struct request_queue *q);
+extern void __blk_run_queue_uncond(struct request_queue *q);
extern void blk_run_queue(struct request_queue *);
extern void blk_run_queue_async(struct request_queue *q);
extern int blk_rq_map_user(struct request_queue *, struct request *,