block: make core bits checkpatch compliant
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
This commit is contained in:
Jens Axboe
Родитель
22b132102f
Коммит
6728cb0e63
|
|
@ -26,7 +26,8 @@ int blk_queue_ordered(struct request_queue *q, unsigned ordered,
|
|||
{
|
||||
if (ordered & (QUEUE_ORDERED_PREFLUSH | QUEUE_ORDERED_POSTFLUSH) &&
|
||||
prepare_flush_fn == NULL) {
|
||||
printk(KERN_ERR "blk_queue_ordered: prepare_flush_fn required\n");
|
||||
printk(KERN_ERR "%s: prepare_flush_fn required\n",
|
||||
__FUNCTION__);
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
|
|
@ -47,7 +48,6 @@ int blk_queue_ordered(struct request_queue *q, unsigned ordered,
|
|||
|
||||
return 0;
|
||||
}
|
||||
|
||||
EXPORT_SYMBOL(blk_queue_ordered);
|
||||
|
||||
/*
|
||||
|
|
@ -315,5 +315,4 @@ int blkdev_issue_flush(struct block_device *bdev, sector_t *error_sector)
|
|||
bio_put(bio);
|
||||
return ret;
|
||||
}
|
||||
|
||||
EXPORT_SYMBOL(blkdev_issue_flush);
|
||||
|
|
|
|||
151
block/blk-core.c
151
block/blk-core.c
|
|
@ -3,7 +3,8 @@
|
|||
* Copyright (C) 1994, Karl Keyte: Added support for disk statistics
|
||||
* Elevator latency, (C) 2000 Andrea Arcangeli <andrea@suse.de> SuSE
|
||||
* Queue request tables / lock, selectable elevator, Jens Axboe <axboe@suse.de>
|
||||
* kernel-doc documentation started by NeilBrown <neilb@cse.unsw.edu.au> - July2000
|
||||
* kernel-doc documentation started by NeilBrown <neilb@cse.unsw.edu.au>
|
||||
* - July2000
|
||||
* bio rewrite, highmem i/o, etc, Jens Axboe <axboe@suse.de> - may 2001
|
||||
*/
|
||||
|
||||
|
|
@ -42,7 +43,7 @@ struct kmem_cache *request_cachep;
|
|||
/*
|
||||
* For queue allocation
|
||||
*/
|
||||
struct kmem_cache *blk_requestq_cachep = NULL;
|
||||
struct kmem_cache *blk_requestq_cachep;
|
||||
|
||||
/*
|
||||
* Controlling structure to kblockd
|
||||
|
|
@ -137,7 +138,7 @@ static void req_bio_endio(struct request *rq, struct bio *bio,
|
|||
error = -EIO;
|
||||
|
||||
if (unlikely(nbytes > bio->bi_size)) {
|
||||
printk("%s: want %u bytes done, only %u left\n",
|
||||
printk(KERN_ERR "%s: want %u bytes done, %u left\n",
|
||||
__FUNCTION__, nbytes, bio->bi_size);
|
||||
nbytes = bio->bi_size;
|
||||
}
|
||||
|
|
@ -161,23 +162,26 @@ void blk_dump_rq_flags(struct request *rq, char *msg)
|
|||
{
|
||||
int bit;
|
||||
|
||||
printk("%s: dev %s: type=%x, flags=%x\n", msg,
|
||||
printk(KERN_INFO "%s: dev %s: type=%x, flags=%x\n", msg,
|
||||
rq->rq_disk ? rq->rq_disk->disk_name : "?", rq->cmd_type,
|
||||
rq->cmd_flags);
|
||||
|
||||
printk("\nsector %llu, nr/cnr %lu/%u\n", (unsigned long long)rq->sector,
|
||||
rq->nr_sectors,
|
||||
rq->current_nr_sectors);
|
||||
printk("bio %p, biotail %p, buffer %p, data %p, len %u\n", rq->bio, rq->biotail, rq->buffer, rq->data, rq->data_len);
|
||||
printk(KERN_INFO " sector %llu, nr/cnr %lu/%u\n",
|
||||
(unsigned long long)rq->sector,
|
||||
rq->nr_sectors,
|
||||
rq->current_nr_sectors);
|
||||
printk(KERN_INFO " bio %p, biotail %p, buffer %p, data %p, len %u\n",
|
||||
rq->bio, rq->biotail,
|
||||
rq->buffer, rq->data,
|
||||
rq->data_len);
|
||||
|
||||
if (blk_pc_request(rq)) {
|
||||
printk("cdb: ");
|
||||
printk(KERN_INFO " cdb: ");
|
||||
for (bit = 0; bit < sizeof(rq->cmd); bit++)
|
||||
printk("%02x ", rq->cmd[bit]);
|
||||
printk("\n");
|
||||
}
|
||||
}
|
||||
|
||||
EXPORT_SYMBOL(blk_dump_rq_flags);
|
||||
|
||||
/*
|
||||
|
|
@ -204,7 +208,6 @@ void blk_plug_device(struct request_queue *q)
|
|||
blk_add_trace_generic(q, NULL, 0, BLK_TA_PLUG);
|
||||
}
|
||||
}
|
||||
|
||||
EXPORT_SYMBOL(blk_plug_device);
|
||||
|
||||
/*
|
||||
|
|
@ -221,7 +224,6 @@ int blk_remove_plug(struct request_queue *q)
|
|||
del_timer(&q->unplug_timer);
|
||||
return 1;
|
||||
}
|
||||
|
||||
EXPORT_SYMBOL(blk_remove_plug);
|
||||
|
||||
/*
|
||||
|
|
@ -328,7 +330,6 @@ void blk_start_queue(struct request_queue *q)
|
|||
kblockd_schedule_work(&q->unplug_work);
|
||||
}
|
||||
}
|
||||
|
||||
EXPORT_SYMBOL(blk_start_queue);
|
||||
|
||||
/**
|
||||
|
|
@ -408,7 +409,7 @@ void blk_put_queue(struct request_queue *q)
|
|||
}
|
||||
EXPORT_SYMBOL(blk_put_queue);
|
||||
|
||||
void blk_cleanup_queue(struct request_queue * q)
|
||||
void blk_cleanup_queue(struct request_queue *q)
|
||||
{
|
||||
mutex_lock(&q->sysfs_lock);
|
||||
set_bit(QUEUE_FLAG_DEAD, &q->queue_flags);
|
||||
|
|
@ -419,7 +420,6 @@ void blk_cleanup_queue(struct request_queue * q)
|
|||
|
||||
blk_put_queue(q);
|
||||
}
|
||||
|
||||
EXPORT_SYMBOL(blk_cleanup_queue);
|
||||
|
||||
static int blk_init_free_list(struct request_queue *q)
|
||||
|
|
@ -575,7 +575,6 @@ int blk_get_queue(struct request_queue *q)
|
|||
|
||||
return 1;
|
||||
}
|
||||
|
||||
EXPORT_SYMBOL(blk_get_queue);
|
||||
|
||||
static inline void blk_free_request(struct request_queue *q, struct request *rq)
|
||||
|
|
@ -774,7 +773,7 @@ rq_starved:
|
|||
*/
|
||||
if (ioc_batching(q, ioc))
|
||||
ioc->nr_batch_requests--;
|
||||
|
||||
|
||||
rq_init(q, rq);
|
||||
|
||||
blk_add_trace_generic(q, bio, rw, BLK_TA_GETRQ);
|
||||
|
|
@ -888,7 +887,6 @@ void blk_requeue_request(struct request_queue *q, struct request *rq)
|
|||
|
||||
elv_requeue_request(q, rq);
|
||||
}
|
||||
|
||||
EXPORT_SYMBOL(blk_requeue_request);
|
||||
|
||||
/**
|
||||
|
|
@ -939,7 +937,6 @@ void blk_insert_request(struct request_queue *q, struct request *rq,
|
|||
blk_start_queueing(q);
|
||||
spin_unlock_irqrestore(q->queue_lock, flags);
|
||||
}
|
||||
|
||||
EXPORT_SYMBOL(blk_insert_request);
|
||||
|
||||
/*
|
||||
|
|
@ -947,7 +944,7 @@ EXPORT_SYMBOL(blk_insert_request);
|
|||
* queue lock is held and interrupts disabled, as we muck with the
|
||||
* request queue list.
|
||||
*/
|
||||
static inline void add_request(struct request_queue * q, struct request * req)
|
||||
static inline void add_request(struct request_queue *q, struct request *req)
|
||||
{
|
||||
drive_stat_acct(req, 1);
|
||||
|
||||
|
|
@ -957,7 +954,7 @@ static inline void add_request(struct request_queue * q, struct request * req)
|
|||
*/
|
||||
__elv_add_request(q, req, ELEVATOR_INSERT_SORT, 0);
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* disk_round_stats() - Round off the performance stats on a struct
|
||||
* disk_stats.
|
||||
|
|
@ -987,7 +984,6 @@ void disk_round_stats(struct gendisk *disk)
|
|||
}
|
||||
disk->stamp = now;
|
||||
}
|
||||
|
||||
EXPORT_SYMBOL_GPL(disk_round_stats);
|
||||
|
||||
/*
|
||||
|
|
@ -1017,7 +1013,6 @@ void __blk_put_request(struct request_queue *q, struct request *req)
|
|||
freed_request(q, rw, priv);
|
||||
}
|
||||
}
|
||||
|
||||
EXPORT_SYMBOL_GPL(__blk_put_request);
|
||||
|
||||
void blk_put_request(struct request *req)
|
||||
|
|
@ -1035,7 +1030,6 @@ void blk_put_request(struct request *req)
|
|||
spin_unlock_irqrestore(q->queue_lock, flags);
|
||||
}
|
||||
}
|
||||
|
||||
EXPORT_SYMBOL(blk_put_request);
|
||||
|
||||
void init_request_from_bio(struct request *req, struct bio *bio)
|
||||
|
|
@ -1096,53 +1090,53 @@ static int __make_request(struct request_queue *q, struct bio *bio)
|
|||
|
||||
el_ret = elv_merge(q, &req, bio);
|
||||
switch (el_ret) {
|
||||
case ELEVATOR_BACK_MERGE:
|
||||
BUG_ON(!rq_mergeable(req));
|
||||
case ELEVATOR_BACK_MERGE:
|
||||
BUG_ON(!rq_mergeable(req));
|
||||
|
||||
if (!ll_back_merge_fn(q, req, bio))
|
||||
break;
|
||||
if (!ll_back_merge_fn(q, req, bio))
|
||||
break;
|
||||
|
||||
blk_add_trace_bio(q, bio, BLK_TA_BACKMERGE);
|
||||
blk_add_trace_bio(q, bio, BLK_TA_BACKMERGE);
|
||||
|
||||
req->biotail->bi_next = bio;
|
||||
req->biotail = bio;
|
||||
req->nr_sectors = req->hard_nr_sectors += nr_sectors;
|
||||
req->ioprio = ioprio_best(req->ioprio, prio);
|
||||
drive_stat_acct(req, 0);
|
||||
if (!attempt_back_merge(q, req))
|
||||
elv_merged_request(q, req, el_ret);
|
||||
goto out;
|
||||
req->biotail->bi_next = bio;
|
||||
req->biotail = bio;
|
||||
req->nr_sectors = req->hard_nr_sectors += nr_sectors;
|
||||
req->ioprio = ioprio_best(req->ioprio, prio);
|
||||
drive_stat_acct(req, 0);
|
||||
if (!attempt_back_merge(q, req))
|
||||
elv_merged_request(q, req, el_ret);
|
||||
goto out;
|
||||
|
||||
case ELEVATOR_FRONT_MERGE:
|
||||
BUG_ON(!rq_mergeable(req));
|
||||
case ELEVATOR_FRONT_MERGE:
|
||||
BUG_ON(!rq_mergeable(req));
|
||||
|
||||
if (!ll_front_merge_fn(q, req, bio))
|
||||
break;
|
||||
if (!ll_front_merge_fn(q, req, bio))
|
||||
break;
|
||||
|
||||
blk_add_trace_bio(q, bio, BLK_TA_FRONTMERGE);
|
||||
blk_add_trace_bio(q, bio, BLK_TA_FRONTMERGE);
|
||||
|
||||
bio->bi_next = req->bio;
|
||||
req->bio = bio;
|
||||
bio->bi_next = req->bio;
|
||||
req->bio = bio;
|
||||
|
||||
/*
|
||||
* may not be valid. if the low level driver said
|
||||
* it didn't need a bounce buffer then it better
|
||||
* not touch req->buffer either...
|
||||
*/
|
||||
req->buffer = bio_data(bio);
|
||||
req->current_nr_sectors = bio_cur_sectors(bio);
|
||||
req->hard_cur_sectors = req->current_nr_sectors;
|
||||
req->sector = req->hard_sector = bio->bi_sector;
|
||||
req->nr_sectors = req->hard_nr_sectors += nr_sectors;
|
||||
req->ioprio = ioprio_best(req->ioprio, prio);
|
||||
drive_stat_acct(req, 0);
|
||||
if (!attempt_front_merge(q, req))
|
||||
elv_merged_request(q, req, el_ret);
|
||||
goto out;
|
||||
/*
|
||||
* may not be valid. if the low level driver said
|
||||
* it didn't need a bounce buffer then it better
|
||||
* not touch req->buffer either...
|
||||
*/
|
||||
req->buffer = bio_data(bio);
|
||||
req->current_nr_sectors = bio_cur_sectors(bio);
|
||||
req->hard_cur_sectors = req->current_nr_sectors;
|
||||
req->sector = req->hard_sector = bio->bi_sector;
|
||||
req->nr_sectors = req->hard_nr_sectors += nr_sectors;
|
||||
req->ioprio = ioprio_best(req->ioprio, prio);
|
||||
drive_stat_acct(req, 0);
|
||||
if (!attempt_front_merge(q, req))
|
||||
elv_merged_request(q, req, el_ret);
|
||||
goto out;
|
||||
|
||||
/* ELV_NO_MERGE: elevator says don't/can't merge. */
|
||||
default:
|
||||
;
|
||||
/* ELV_NO_MERGE: elevator says don't/can't merge. */
|
||||
default:
|
||||
;
|
||||
}
|
||||
|
||||
get_rq:
|
||||
|
|
@ -1350,7 +1344,7 @@ end_io:
|
|||
}
|
||||
|
||||
if (unlikely(nr_sectors > q->max_hw_sectors)) {
|
||||
printk("bio too big device %s (%u > %u)\n",
|
||||
printk(KERN_ERR "bio too big device %s (%u > %u)\n",
|
||||
bdevname(bio->bi_bdev, b),
|
||||
bio_sectors(bio),
|
||||
q->max_hw_sectors);
|
||||
|
|
@ -1439,7 +1433,6 @@ void generic_make_request(struct bio *bio)
|
|||
} while (bio);
|
||||
current->bio_tail = NULL; /* deactivate */
|
||||
}
|
||||
|
||||
EXPORT_SYMBOL(generic_make_request);
|
||||
|
||||
/**
|
||||
|
|
@ -1480,13 +1473,12 @@ void submit_bio(int rw, struct bio *bio)
|
|||
current->comm, task_pid_nr(current),
|
||||
(rw & WRITE) ? "WRITE" : "READ",
|
||||
(unsigned long long)bio->bi_sector,
|
||||
bdevname(bio->bi_bdev,b));
|
||||
bdevname(bio->bi_bdev, b));
|
||||
}
|
||||
}
|
||||
|
||||
generic_make_request(bio);
|
||||
}
|
||||
|
||||
EXPORT_SYMBOL(submit_bio);
|
||||
|
||||
/**
|
||||
|
|
@ -1518,9 +1510,8 @@ static int __end_that_request_first(struct request *req, int error,
|
|||
if (!blk_pc_request(req))
|
||||
req->errors = 0;
|
||||
|
||||
if (error) {
|
||||
if (blk_fs_request(req) && !(req->cmd_flags & REQ_QUIET))
|
||||
printk("end_request: I/O error, dev %s, sector %llu\n",
|
||||
if (error && (blk_fs_request(req) && !(req->cmd_flags & REQ_QUIET))) {
|
||||
printk(KERN_ERR "end_request: I/O error, dev %s, sector %llu\n",
|
||||
req->rq_disk ? req->rq_disk->disk_name : "?",
|
||||
(unsigned long long)req->sector);
|
||||
}
|
||||
|
|
@ -1554,9 +1545,9 @@ static int __end_that_request_first(struct request *req, int error,
|
|||
|
||||
if (unlikely(bio->bi_idx >= bio->bi_vcnt)) {
|
||||
blk_dump_rq_flags(req, "__end_that");
|
||||
printk("%s: bio idx %d >= vcnt %d\n",
|
||||
__FUNCTION__,
|
||||
bio->bi_idx, bio->bi_vcnt);
|
||||
printk(KERN_ERR "%s: bio idx %d >= vcnt %d\n",
|
||||
__FUNCTION__, bio->bi_idx,
|
||||
bio->bi_vcnt);
|
||||
break;
|
||||
}
|
||||
|
||||
|
|
@ -1582,7 +1573,8 @@ static int __end_that_request_first(struct request *req, int error,
|
|||
total_bytes += nbytes;
|
||||
nr_bytes -= nbytes;
|
||||
|
||||
if ((bio = req->bio)) {
|
||||
bio = req->bio;
|
||||
if (bio) {
|
||||
/*
|
||||
* end more in this run, or just return 'not-done'
|
||||
*/
|
||||
|
|
@ -1626,15 +1618,16 @@ static void blk_done_softirq(struct softirq_action *h)
|
|||
local_irq_enable();
|
||||
|
||||
while (!list_empty(&local_list)) {
|
||||
struct request *rq = list_entry(local_list.next, struct request, donelist);
|
||||
struct request *rq;
|
||||
|
||||
rq = list_entry(local_list.next, struct request, donelist);
|
||||
list_del_init(&rq->donelist);
|
||||
rq->q->softirq_done_fn(rq);
|
||||
}
|
||||
}
|
||||
|
||||
static int __cpuinit blk_cpu_notify(struct notifier_block *self, unsigned long action,
|
||||
void *hcpu)
|
||||
static int __cpuinit blk_cpu_notify(struct notifier_block *self,
|
||||
unsigned long action, void *hcpu)
|
||||
{
|
||||
/*
|
||||
* If a CPU goes away, splice its entries to the current CPU
|
||||
|
|
@ -1676,7 +1669,7 @@ void blk_complete_request(struct request *req)
|
|||
unsigned long flags;
|
||||
|
||||
BUG_ON(!req->q->softirq_done_fn);
|
||||
|
||||
|
||||
local_irq_save(flags);
|
||||
|
||||
cpu_list = &__get_cpu_var(blk_cpu_done);
|
||||
|
|
@ -1685,9 +1678,8 @@ void blk_complete_request(struct request *req)
|
|||
|
||||
local_irq_restore(flags);
|
||||
}
|
||||
|
||||
EXPORT_SYMBOL(blk_complete_request);
|
||||
|
||||
|
||||
/*
|
||||
* queue lock must be held
|
||||
*/
|
||||
|
|
@ -2002,7 +1994,6 @@ int kblockd_schedule_work(struct work_struct *work)
|
|||
{
|
||||
return queue_work(kblockd_workqueue, work);
|
||||
}
|
||||
|
||||
EXPORT_SYMBOL(kblockd_schedule_work);
|
||||
|
||||
void kblockd_flush_work(struct work_struct *work)
|
||||
|
|
|
|||
|
|
@ -101,5 +101,4 @@ int blk_execute_rq(struct request_queue *q, struct gendisk *bd_disk,
|
|||
|
||||
return err;
|
||||
}
|
||||
|
||||
EXPORT_SYMBOL(blk_execute_rq);
|
||||
|
|
|
|||
|
|
@ -53,7 +53,8 @@ static int __blk_rq_map_user(struct request_queue *q, struct request *rq,
|
|||
* direct dma. else, set up kernel bounce buffers
|
||||
*/
|
||||
uaddr = (unsigned long) ubuf;
|
||||
if (!(uaddr & queue_dma_alignment(q)) && !(len & queue_dma_alignment(q)))
|
||||
if (!(uaddr & queue_dma_alignment(q)) &&
|
||||
!(len & queue_dma_alignment(q)))
|
||||
bio = bio_map_user(q, NULL, uaddr, len, reading);
|
||||
else
|
||||
bio = bio_copy_user(q, uaddr, len, reading);
|
||||
|
|
@ -144,7 +145,6 @@ unmap_rq:
|
|||
blk_rq_unmap_user(bio);
|
||||
return ret;
|
||||
}
|
||||
|
||||
EXPORT_SYMBOL(blk_rq_map_user);
|
||||
|
||||
/**
|
||||
|
|
@ -179,7 +179,8 @@ int blk_rq_map_user_iov(struct request_queue *q, struct request *rq,
|
|||
/* we don't allow misaligned data like bio_map_user() does. If the
|
||||
* user is using sg, they're expected to know the alignment constraints
|
||||
* and respect them accordingly */
|
||||
bio = bio_map_user_iov(q, NULL, iov, iov_count, rq_data_dir(rq)== READ);
|
||||
bio = bio_map_user_iov(q, NULL, iov, iov_count,
|
||||
rq_data_dir(rq) == READ);
|
||||
if (IS_ERR(bio))
|
||||
return PTR_ERR(bio);
|
||||
|
||||
|
|
@ -194,7 +195,6 @@ int blk_rq_map_user_iov(struct request_queue *q, struct request *rq,
|
|||
rq->buffer = rq->data = NULL;
|
||||
return 0;
|
||||
}
|
||||
|
||||
EXPORT_SYMBOL(blk_rq_map_user_iov);
|
||||
|
||||
/**
|
||||
|
|
@ -227,7 +227,6 @@ int blk_rq_unmap_user(struct bio *bio)
|
|||
|
||||
return ret;
|
||||
}
|
||||
|
||||
EXPORT_SYMBOL(blk_rq_unmap_user);
|
||||
|
||||
/**
|
||||
|
|
@ -260,5 +259,4 @@ int blk_rq_map_kern(struct request_queue *q, struct request *rq, void *kbuf,
|
|||
rq->buffer = rq->data = NULL;
|
||||
return 0;
|
||||
}
|
||||
|
||||
EXPORT_SYMBOL(blk_rq_map_kern);
|
||||
|
|
|
|||
|
|
@ -32,7 +32,7 @@ void blk_recalc_rq_sectors(struct request *rq, int nsect)
|
|||
* size, something has gone terribly wrong
|
||||
*/
|
||||
if (rq->nr_sectors < rq->current_nr_sectors) {
|
||||
printk("blk: request botched\n");
|
||||
printk(KERN_ERR "blk: request botched\n");
|
||||
rq->nr_sectors = rq->current_nr_sectors;
|
||||
}
|
||||
}
|
||||
|
|
@ -235,7 +235,6 @@ new_segment:
|
|||
|
||||
return nsegs;
|
||||
}
|
||||
|
||||
EXPORT_SYMBOL(blk_rq_map_sg);
|
||||
|
||||
static inline int ll_new_mergeable(struct request_queue *q,
|
||||
|
|
@ -305,8 +304,8 @@ int ll_back_merge_fn(struct request_queue *q, struct request *req,
|
|||
if (unlikely(!bio_flagged(bio, BIO_SEG_VALID)))
|
||||
blk_recount_segments(q, bio);
|
||||
len = req->biotail->bi_hw_back_size + bio->bi_hw_front_size;
|
||||
if (BIOVEC_VIRT_MERGEABLE(__BVEC_END(req->biotail), __BVEC_START(bio)) &&
|
||||
!BIOVEC_VIRT_OVERSIZE(len)) {
|
||||
if (BIOVEC_VIRT_MERGEABLE(__BVEC_END(req->biotail), __BVEC_START(bio))
|
||||
&& !BIOVEC_VIRT_OVERSIZE(len)) {
|
||||
int mergeable = ll_new_mergeable(q, req, bio);
|
||||
|
||||
if (mergeable) {
|
||||
|
|
@ -321,7 +320,7 @@ int ll_back_merge_fn(struct request_queue *q, struct request *req,
|
|||
return ll_new_hw_segment(q, req, bio);
|
||||
}
|
||||
|
||||
int ll_front_merge_fn(struct request_queue *q, struct request *req,
|
||||
int ll_front_merge_fn(struct request_queue *q, struct request *req,
|
||||
struct bio *bio)
|
||||
{
|
||||
unsigned short max_sectors;
|
||||
|
|
@ -388,7 +387,8 @@ static int ll_merge_requests_fn(struct request_queue *q, struct request *req,
|
|||
|
||||
total_hw_segments = req->nr_hw_segments + next->nr_hw_segments;
|
||||
if (blk_hw_contig_segment(q, req->biotail, next->bio)) {
|
||||
int len = req->biotail->bi_hw_back_size + next->bio->bi_hw_front_size;
|
||||
int len = req->biotail->bi_hw_back_size +
|
||||
next->bio->bi_hw_front_size;
|
||||
/*
|
||||
* propagate the combined length to the end of the requests
|
||||
*/
|
||||
|
|
|
|||
|
|
@ -10,8 +10,10 @@
|
|||
|
||||
#include "blk.h"
|
||||
|
||||
unsigned long blk_max_low_pfn, blk_max_pfn;
|
||||
unsigned long blk_max_low_pfn;
|
||||
EXPORT_SYMBOL(blk_max_low_pfn);
|
||||
|
||||
unsigned long blk_max_pfn;
|
||||
EXPORT_SYMBOL(blk_max_pfn);
|
||||
|
||||
/**
|
||||
|
|
@ -29,7 +31,6 @@ void blk_queue_prep_rq(struct request_queue *q, prep_rq_fn *pfn)
|
|||
{
|
||||
q->prep_rq_fn = pfn;
|
||||
}
|
||||
|
||||
EXPORT_SYMBOL(blk_queue_prep_rq);
|
||||
|
||||
/**
|
||||
|
|
@ -52,14 +53,12 @@ void blk_queue_merge_bvec(struct request_queue *q, merge_bvec_fn *mbfn)
|
|||
{
|
||||
q->merge_bvec_fn = mbfn;
|
||||
}
|
||||
|
||||
EXPORT_SYMBOL(blk_queue_merge_bvec);
|
||||
|
||||
void blk_queue_softirq_done(struct request_queue *q, softirq_done_fn *fn)
|
||||
{
|
||||
q->softirq_done_fn = fn;
|
||||
}
|
||||
|
||||
EXPORT_SYMBOL(blk_queue_softirq_done);
|
||||
|
||||
/**
|
||||
|
|
@ -84,7 +83,7 @@ EXPORT_SYMBOL(blk_queue_softirq_done);
|
|||
* __bio_kmap_atomic() to get a temporary kernel mapping, or by calling
|
||||
* blk_queue_bounce() to create a buffer in normal memory.
|
||||
**/
|
||||
void blk_queue_make_request(struct request_queue * q, make_request_fn * mfn)
|
||||
void blk_queue_make_request(struct request_queue *q, make_request_fn *mfn)
|
||||
{
|
||||
/*
|
||||
* set defaults
|
||||
|
|
@ -93,7 +92,8 @@ void blk_queue_make_request(struct request_queue * q, make_request_fn * mfn)
|
|||
blk_queue_max_phys_segments(q, MAX_PHYS_SEGMENTS);
|
||||
blk_queue_max_hw_segments(q, MAX_HW_SEGMENTS);
|
||||
q->make_request_fn = mfn;
|
||||
q->backing_dev_info.ra_pages = (VM_MAX_READAHEAD * 1024) / PAGE_CACHE_SIZE;
|
||||
q->backing_dev_info.ra_pages =
|
||||
(VM_MAX_READAHEAD * 1024) / PAGE_CACHE_SIZE;
|
||||
q->backing_dev_info.state = 0;
|
||||
q->backing_dev_info.capabilities = BDI_CAP_MAP_COPY;
|
||||
blk_queue_max_sectors(q, SAFE_MAX_SECTORS);
|
||||
|
|
@ -117,7 +117,6 @@ void blk_queue_make_request(struct request_queue * q, make_request_fn * mfn)
|
|||
*/
|
||||
blk_queue_bounce_limit(q, BLK_BOUNCE_HIGH);
|
||||
}
|
||||
|
||||
EXPORT_SYMBOL(blk_queue_make_request);
|
||||
|
||||
/**
|
||||
|
|
@ -133,7 +132,7 @@ EXPORT_SYMBOL(blk_queue_make_request);
|
|||
**/
|
||||
void blk_queue_bounce_limit(struct request_queue *q, u64 dma_addr)
|
||||
{
|
||||
unsigned long bounce_pfn = dma_addr >> PAGE_SHIFT;
|
||||
unsigned long b_pfn = dma_addr >> PAGE_SHIFT;
|
||||
int dma = 0;
|
||||
|
||||
q->bounce_gfp = GFP_NOIO;
|
||||
|
|
@ -141,21 +140,20 @@ void blk_queue_bounce_limit(struct request_queue *q, u64 dma_addr)
|
|||
/* Assume anything <= 4GB can be handled by IOMMU.
|
||||
Actually some IOMMUs can handle everything, but I don't
|
||||
know of a way to test this here. */
|
||||
if (bounce_pfn < (min_t(u64,0xffffffff,BLK_BOUNCE_HIGH) >> PAGE_SHIFT))
|
||||
if (b_pfn < (min_t(u64, 0xffffffff, BLK_BOUNCE_HIGH) >> PAGE_SHIFT))
|
||||
dma = 1;
|
||||
q->bounce_pfn = max_low_pfn;
|
||||
#else
|
||||
if (bounce_pfn < blk_max_low_pfn)
|
||||
if (b_pfn < blk_max_low_pfn)
|
||||
dma = 1;
|
||||
q->bounce_pfn = bounce_pfn;
|
||||
q->bounce_pfn = b_pfn;
|
||||
#endif
|
||||
if (dma) {
|
||||
init_emergency_isa_pool();
|
||||
q->bounce_gfp = GFP_NOIO | GFP_DMA;
|
||||
q->bounce_pfn = bounce_pfn;
|
||||
q->bounce_pfn = b_pfn;
|
||||
}
|
||||
}
|
||||
|
||||
EXPORT_SYMBOL(blk_queue_bounce_limit);
|
||||
|
||||
/**
|
||||
|
|
@ -171,7 +169,8 @@ void blk_queue_max_sectors(struct request_queue *q, unsigned int max_sectors)
|
|||
{
|
||||
if ((max_sectors << 9) < PAGE_CACHE_SIZE) {
|
||||
max_sectors = 1 << (PAGE_CACHE_SHIFT - 9);
|
||||
printk("%s: set to minimum %d\n", __FUNCTION__, max_sectors);
|
||||
printk(KERN_INFO "%s: set to minimum %d\n", __FUNCTION__,
|
||||
max_sectors);
|
||||
}
|
||||
|
||||
if (BLK_DEF_MAX_SECTORS > max_sectors)
|
||||
|
|
@ -181,7 +180,6 @@ void blk_queue_max_sectors(struct request_queue *q, unsigned int max_sectors)
|
|||
q->max_hw_sectors = max_sectors;
|
||||
}
|
||||
}
|
||||
|
||||
EXPORT_SYMBOL(blk_queue_max_sectors);
|
||||
|
||||
/**
|
||||
|
|
@ -199,12 +197,12 @@ void blk_queue_max_phys_segments(struct request_queue *q,
|
|||
{
|
||||
if (!max_segments) {
|
||||
max_segments = 1;
|
||||
printk("%s: set to minimum %d\n", __FUNCTION__, max_segments);
|
||||
printk(KERN_INFO "%s: set to minimum %d\n", __FUNCTION__,
|
||||
max_segments);
|
||||
}
|
||||
|
||||
q->max_phys_segments = max_segments;
|
||||
}
|
||||
|
||||
EXPORT_SYMBOL(blk_queue_max_phys_segments);
|
||||
|
||||
/**
|
||||
|
|
@ -223,12 +221,12 @@ void blk_queue_max_hw_segments(struct request_queue *q,
|
|||
{
|
||||
if (!max_segments) {
|
||||
max_segments = 1;
|
||||
printk("%s: set to minimum %d\n", __FUNCTION__, max_segments);
|
||||
printk(KERN_INFO "%s: set to minimum %d\n", __FUNCTION__,
|
||||
max_segments);
|
||||
}
|
||||
|
||||
q->max_hw_segments = max_segments;
|
||||
}
|
||||
|
||||
EXPORT_SYMBOL(blk_queue_max_hw_segments);
|
||||
|
||||
/**
|
||||
|
|
@ -244,12 +242,12 @@ void blk_queue_max_segment_size(struct request_queue *q, unsigned int max_size)
|
|||
{
|
||||
if (max_size < PAGE_CACHE_SIZE) {
|
||||
max_size = PAGE_CACHE_SIZE;
|
||||
printk("%s: set to minimum %d\n", __FUNCTION__, max_size);
|
||||
printk(KERN_INFO "%s: set to minimum %d\n", __FUNCTION__,
|
||||
max_size);
|
||||
}
|
||||
|
||||
q->max_segment_size = max_size;
|
||||
}
|
||||
|
||||
EXPORT_SYMBOL(blk_queue_max_segment_size);
|
||||
|
||||
/**
|
||||
|
|
@ -267,7 +265,6 @@ void blk_queue_hardsect_size(struct request_queue *q, unsigned short size)
|
|||
{
|
||||
q->hardsect_size = size;
|
||||
}
|
||||
|
||||
EXPORT_SYMBOL(blk_queue_hardsect_size);
|
||||
|
||||
/*
|
||||
|
|
@ -283,17 +280,16 @@ EXPORT_SYMBOL(blk_queue_hardsect_size);
|
|||
void blk_queue_stack_limits(struct request_queue *t, struct request_queue *b)
|
||||
{
|
||||
/* zero is "infinity" */
|
||||
t->max_sectors = min_not_zero(t->max_sectors,b->max_sectors);
|
||||
t->max_hw_sectors = min_not_zero(t->max_hw_sectors,b->max_hw_sectors);
|
||||
t->max_sectors = min_not_zero(t->max_sectors, b->max_sectors);
|
||||
t->max_hw_sectors = min_not_zero(t->max_hw_sectors, b->max_hw_sectors);
|
||||
|
||||
t->max_phys_segments = min(t->max_phys_segments,b->max_phys_segments);
|
||||
t->max_hw_segments = min(t->max_hw_segments,b->max_hw_segments);
|
||||
t->max_segment_size = min(t->max_segment_size,b->max_segment_size);
|
||||
t->hardsect_size = max(t->hardsect_size,b->hardsect_size);
|
||||
t->max_phys_segments = min(t->max_phys_segments, b->max_phys_segments);
|
||||
t->max_hw_segments = min(t->max_hw_segments, b->max_hw_segments);
|
||||
t->max_segment_size = min(t->max_segment_size, b->max_segment_size);
|
||||
t->hardsect_size = max(t->hardsect_size, b->hardsect_size);
|
||||
if (!test_bit(QUEUE_FLAG_CLUSTER, &b->queue_flags))
|
||||
clear_bit(QUEUE_FLAG_CLUSTER, &t->queue_flags);
|
||||
}
|
||||
|
||||
EXPORT_SYMBOL(blk_queue_stack_limits);
|
||||
|
||||
/**
|
||||
|
|
@ -332,7 +328,6 @@ int blk_queue_dma_drain(struct request_queue *q, void *buf,
|
|||
|
||||
return 0;
|
||||
}
|
||||
|
||||
EXPORT_SYMBOL_GPL(blk_queue_dma_drain);
|
||||
|
||||
/**
|
||||
|
|
@ -344,12 +339,12 @@ void blk_queue_segment_boundary(struct request_queue *q, unsigned long mask)
|
|||
{
|
||||
if (mask < PAGE_CACHE_SIZE - 1) {
|
||||
mask = PAGE_CACHE_SIZE - 1;
|
||||
printk("%s: set to minimum %lx\n", __FUNCTION__, mask);
|
||||
printk(KERN_INFO "%s: set to minimum %lx\n", __FUNCTION__,
|
||||
mask);
|
||||
}
|
||||
|
||||
q->seg_boundary_mask = mask;
|
||||
}
|
||||
|
||||
EXPORT_SYMBOL(blk_queue_segment_boundary);
|
||||
|
||||
/**
|
||||
|
|
@ -366,7 +361,6 @@ void blk_queue_dma_alignment(struct request_queue *q, int mask)
|
|||
{
|
||||
q->dma_alignment = mask;
|
||||
}
|
||||
|
||||
EXPORT_SYMBOL(blk_queue_dma_alignment);
|
||||
|
||||
/**
|
||||
|
|
@ -390,7 +384,6 @@ void blk_queue_update_dma_alignment(struct request_queue *q, int mask)
|
|||
if (mask > q->dma_alignment)
|
||||
q->dma_alignment = mask;
|
||||
}
|
||||
|
||||
EXPORT_SYMBOL(blk_queue_update_dma_alignment);
|
||||
|
||||
int __init blk_settings_init(void)
|
||||
|
|
|
|||
|
|
@ -207,12 +207,13 @@ queue_attr_store(struct kobject *kobj, struct attribute *attr,
|
|||
const char *page, size_t length)
|
||||
{
|
||||
struct queue_sysfs_entry *entry = to_queue(attr);
|
||||
struct request_queue *q = container_of(kobj, struct request_queue, kobj);
|
||||
|
||||
struct request_queue *q;
|
||||
ssize_t res;
|
||||
|
||||
if (!entry->store)
|
||||
return -EIO;
|
||||
|
||||
q = container_of(kobj, struct request_queue, kobj);
|
||||
mutex_lock(&q->sysfs_lock);
|
||||
if (test_bit(QUEUE_FLAG_DEAD, &q->queue_flags)) {
|
||||
mutex_unlock(&q->sysfs_lock);
|
||||
|
|
|
|||
|
|
@ -21,7 +21,6 @@ struct request *blk_queue_find_tag(struct request_queue *q, int tag)
|
|||
{
|
||||
return blk_map_queue_find_tag(q->queue_tags, tag);
|
||||
}
|
||||
|
||||
EXPORT_SYMBOL(blk_queue_find_tag);
|
||||
|
||||
/**
|
||||
|
|
@ -99,7 +98,6 @@ void blk_queue_free_tags(struct request_queue *q)
|
|||
{
|
||||
clear_bit(QUEUE_FLAG_QUEUED, &q->queue_flags);
|
||||
}
|
||||
|
||||
EXPORT_SYMBOL(blk_queue_free_tags);
|
||||
|
||||
static int
|
||||
|
|
@ -185,7 +183,8 @@ int blk_queue_init_tags(struct request_queue *q, int depth,
|
|||
if (!tags)
|
||||
goto fail;
|
||||
} else if (q->queue_tags) {
|
||||
if ((rc = blk_queue_resize_tags(q, depth)))
|
||||
rc = blk_queue_resize_tags(q, depth);
|
||||
if (rc)
|
||||
return rc;
|
||||
set_bit(QUEUE_FLAG_QUEUED, &q->queue_flags);
|
||||
return 0;
|
||||
|
|
@ -203,7 +202,6 @@ fail:
|
|||
kfree(tags);
|
||||
return -ENOMEM;
|
||||
}
|
||||
|
||||
EXPORT_SYMBOL(blk_queue_init_tags);
|
||||
|
||||
/**
|
||||
|
|
@ -260,7 +258,6 @@ int blk_queue_resize_tags(struct request_queue *q, int new_depth)
|
|||
kfree(tag_map);
|
||||
return 0;
|
||||
}
|
||||
|
||||
EXPORT_SYMBOL(blk_queue_resize_tags);
|
||||
|
||||
/**
|
||||
|
|
@ -313,7 +310,6 @@ void blk_queue_end_tag(struct request_queue *q, struct request *rq)
|
|||
clear_bit_unlock(tag, bqt->tag_map);
|
||||
bqt->busy--;
|
||||
}
|
||||
|
||||
EXPORT_SYMBOL(blk_queue_end_tag);
|
||||
|
||||
/**
|
||||
|
|
@ -340,7 +336,7 @@ int blk_queue_start_tag(struct request_queue *q, struct request *rq)
|
|||
int tag;
|
||||
|
||||
if (unlikely((rq->cmd_flags & REQ_QUEUED))) {
|
||||
printk(KERN_ERR
|
||||
printk(KERN_ERR
|
||||
"%s: request %p for device [%s] already tagged %d",
|
||||
__FUNCTION__, rq,
|
||||
rq->rq_disk ? rq->rq_disk->disk_name : "?", rq->tag);
|
||||
|
|
@ -370,7 +366,6 @@ int blk_queue_start_tag(struct request_queue *q, struct request *rq)
|
|||
bqt->busy++;
|
||||
return 0;
|
||||
}
|
||||
|
||||
EXPORT_SYMBOL(blk_queue_start_tag);
|
||||
|
||||
/**
|
||||
|
|
@ -392,5 +387,4 @@ void blk_queue_invalidate_tags(struct request_queue *q)
|
|||
list_for_each_safe(tmp, n, &q->tag_busy_list)
|
||||
blk_requeue_request(q, list_entry_rq(tmp));
|
||||
}
|
||||
|
||||
EXPORT_SYMBOL(blk_queue_invalidate_tags);
|
||||
|
|
|
|||
Загрузка…
Ссылка в новой задаче