blk.h File Reference

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Defines
#define	BLK_BATCH_TIME   (HZ/50UL)
#define	BLK_BATCH_REQ   32
Enumerations
enum	rq_atomic_flags { REQ_ATOM_COMPLETE = 0 }
Functions
void	init_request_from_bio (struct request *req, struct bio *bio)
void	blk_rq_bio_prep (struct request_queue *q, struct request *rq, struct bio *bio)
void	__blk_queue_free_tags (struct request_queue *q)
void	blk_unplug_work (struct work_struct *work)
void	blk_unplug_timeout (unsigned long data)
void	blk_rq_timed_out_timer (unsigned long data)
void	blk_delete_timer (struct request *)
void	blk_add_timer (struct request *)
void	__generic_unplug_device (struct request_queue *)
static int	blk_mark_rq_complete (struct request *rq)
static void	blk_clear_rq_complete (struct request *rq)
static int	blk_should_fake_timeout (struct request_queue *q)
struct io_context *	current_io_context (gfp_t gfp_flags, int node)
int	ll_back_merge_fn (struct request_queue *q, struct request *req, struct bio *bio)
int	ll_front_merge_fn (struct request_queue *q, struct request *req, struct bio *bio)
int	attempt_back_merge (struct request_queue *q, struct request *rq)
int	attempt_front_merge (struct request_queue *q, struct request *rq)
void	blk_recalc_rq_segments (struct request *rq)
void	blk_recalc_rq_sectors (struct request *rq, int nsect)
void	blk_queue_congestion_threshold (struct request_queue *q)
int	blk_dev_init (void)
static int	queue_congestion_on_threshold (struct request_queue *q)
static int	queue_congestion_off_threshold (struct request_queue *q)
static int	blk_cpu_to_group (int cpu)
static int	blk_do_io_stat (struct request_queue *q)
Variables
struct kmem_cache *	blk_requestq_cachep
struct kobj_type	blk_queue_ktype

---

Define Documentation

#define BLK_BATCH_REQ   32

Definition at line 8 of file blk.h.

#define BLK_BATCH_TIME   (HZ/50UL)

Definition at line 5 of file blk.h.

---

Enumeration Type Documentation

enum rq_atomic_flags

Enumerator:

REQ_ATOM_COMPLETE

Definition at line 28 of file blk.h.

---

Function Documentation

void __blk_queue_free_tags

(

struct request_queue *

q

)

void __generic_unplug_device

(

struct request_queue *

)

Definition at line 268 of file blk-core.c.

int attempt_back_merge	(	struct request_queue *	q,
		struct request *	rq
	)

int attempt_front_merge	(	struct request_queue *	q,
		struct request *	rq
	)

void blk_add_timer

(

struct request *

)

static void blk_clear_rq_complete

(

struct request *

rq

)

[inline, static]

Definition at line 41 of file blk.h.

static int blk_cpu_to_group

(

int

cpu

)

[inline, static]

Definition at line 99 of file blk.h.

void blk_delete_timer

(

struct request *

)

int blk_dev_init

(

void

)

Definition at line 2159 of file blk-core.c.

static int blk_do_io_stat

(

struct request_queue *

q

)

[inline, static]

Definition at line 111 of file blk.h.

static int blk_mark_rq_complete

(

struct request *

rq

)

[inline, static]

Definition at line 36 of file blk.h.

void blk_queue_congestion_threshold

(

struct request_queue *

q

)

Definition at line 88 of file blk-core.c.

void blk_recalc_rq_sectors	(	struct request *	rq,
		int	nsect
	)

void blk_recalc_rq_segments

(

struct request *

rq

)

void blk_rq_bio_prep	(	struct request_queue *	q,
		struct request *	rq,
		struct bio *	bio
	)

Definition at line 2103 of file blk-core.c.

void blk_rq_timed_out_timer

(

unsigned long

data

)

static int blk_should_fake_timeout

(

struct request_queue *

q

)

[inline, static]

Definition at line 52 of file blk.h.

void blk_unplug_timeout

(

unsigned long

data

)

Definition at line 316 of file blk-core.c.

void blk_unplug_work

(

struct work_struct *

work

)

Definition at line 307 of file blk-core.c.

struct io_context* current_io_context	(	gfp_t	gfp_flags,
		int	node
	)			[read]

void init_request_from_bio	(	struct request *	req,
		struct bio *	bio
	)

Definition at line 1097 of file blk-core.c.

int ll_back_merge_fn	(	struct request_queue *	q,
		struct request *	req,
		struct bio *	bio
	)

int ll_front_merge_fn	(	struct request_queue *	q,
		struct request *	req,
		struct bio *	bio
	)

static int queue_congestion_off_threshold

(

struct request_queue *

q

)

[inline, static]

Definition at line 86 of file blk.h.

static int queue_congestion_on_threshold

(

struct request_queue *

q

)

[inline, static]

Definition at line 78 of file blk.h.

---

Variable Documentation

struct kobj_type blk_queue_ktype

struct kmem_cache* blk_requestq_cachep

Definition at line 58 of file blk-core.c.