diff options
| -rw-r--r-- | drivers/block/ll_rw_blk.c | 67 | ||||
| -rw-r--r-- | include/linux/blkdev.h | 6 |
2 files changed, 8 insertions, 65 deletions
diff --git a/drivers/block/ll_rw_blk.c b/drivers/block/ll_rw_blk.c index fd94ea27d59..fc86d53fe78 100644 --- a/drivers/block/ll_rw_blk.c +++ b/drivers/block/ll_rw_blk.c @@ -37,6 +37,7 @@ static void blk_unplug_work(void *data); static void blk_unplug_timeout(unsigned long data); +static void drive_stat_acct(struct request *rq, int nr_sectors, int new_io); /* * For the allocated request tables @@ -1137,7 +1138,7 @@ new_hw_segment: } -int blk_phys_contig_segment(request_queue_t *q, struct bio *bio, +static int blk_phys_contig_segment(request_queue_t *q, struct bio *bio, struct bio *nxt) { if (!(q->queue_flags & (1 << QUEUE_FLAG_CLUSTER))) @@ -1158,9 +1159,7 @@ int blk_phys_contig_segment(request_queue_t *q, struct bio *bio, return 0; } -EXPORT_SYMBOL(blk_phys_contig_segment); - -int blk_hw_contig_segment(request_queue_t *q, struct bio *bio, +static int blk_hw_contig_segment(request_queue_t *q, struct bio *bio, struct bio *nxt) { if (unlikely(!bio_flagged(bio, BIO_SEG_VALID))) @@ -1176,8 +1175,6 @@ int blk_hw_contig_segment(request_queue_t *q, struct bio *bio, return 1; } -EXPORT_SYMBOL(blk_hw_contig_segment); - /* * map a request to scatterlist, return number of sg entries setup. Caller * must make sure sg can hold rq->nr_phys_segments entries @@ -1825,7 +1822,7 @@ static inline int ioc_batching(request_queue_t *q, struct io_context *ioc) * is the behaviour we want though - once it gets a wakeup it should be given * a nice run. */ -void ioc_set_batching(request_queue_t *q, struct io_context *ioc) +static void ioc_set_batching(request_queue_t *q, struct io_context *ioc) { if (!ioc || ioc_batching(q, ioc)) return; @@ -2254,45 +2251,7 @@ int blkdev_issue_flush(struct block_device *bdev, sector_t *error_sector) EXPORT_SYMBOL(blkdev_issue_flush); -/** - * blkdev_scsi_issue_flush_fn - issue flush for SCSI devices - * @q: device queue - * @disk: gendisk - * @error_sector: error offset - * - * Description: - * Devices understanding the SCSI command set, can use this function as - * a helper for issuing a cache flush. Note: driver is required to store - * the error offset (in case of error flushing) in ->sector of struct - * request. - */ -int blkdev_scsi_issue_flush_fn(request_queue_t *q, struct gendisk *disk, - sector_t *error_sector) -{ - struct request *rq = blk_get_request(q, WRITE, __GFP_WAIT); - int ret; - - rq->flags |= REQ_BLOCK_PC | REQ_SOFTBARRIER; - rq->sector = 0; - memset(rq->cmd, 0, sizeof(rq->cmd)); - rq->cmd[0] = 0x35; - rq->cmd_len = 12; - rq->data = NULL; - rq->data_len = 0; - rq->timeout = 60 * HZ; - - ret = blk_execute_rq(q, disk, rq); - - if (ret && error_sector) - *error_sector = rq->sector; - - blk_put_request(rq); - return ret; -} - -EXPORT_SYMBOL(blkdev_scsi_issue_flush_fn); - -void drive_stat_acct(struct request *rq, int nr_sectors, int new_io) +static void drive_stat_acct(struct request *rq, int nr_sectors, int new_io) { int rw = rq_data_dir(rq); @@ -2551,16 +2510,6 @@ void blk_attempt_remerge(request_queue_t *q, struct request *rq) EXPORT_SYMBOL(blk_attempt_remerge); -/* - * Non-locking blk_attempt_remerge variant. - */ -void __blk_attempt_remerge(request_queue_t *q, struct request *rq) -{ - attempt_back_merge(q, rq); -} - -EXPORT_SYMBOL(__blk_attempt_remerge); - static int __make_request(request_queue_t *q, struct bio *bio) { struct request *req, *freereq = NULL; @@ -2971,7 +2920,7 @@ void submit_bio(int rw, struct bio *bio) EXPORT_SYMBOL(submit_bio); -void blk_recalc_rq_segments(struct request *rq) +static void blk_recalc_rq_segments(struct request *rq) { struct bio *bio, *prevbio = NULL; int nr_phys_segs, nr_hw_segs; @@ -3013,7 +2962,7 @@ void blk_recalc_rq_segments(struct request *rq) rq->nr_hw_segments = nr_hw_segs; } -void blk_recalc_rq_sectors(struct request *rq, int nsect) +static void blk_recalc_rq_sectors(struct request *rq, int nsect) { if (blk_fs_request(rq)) { rq->hard_sector += nsect; @@ -3601,7 +3550,7 @@ static struct sysfs_ops queue_sysfs_ops = { .store = queue_attr_store, }; -struct kobj_type queue_ktype = { +static struct kobj_type queue_ktype = { .sysfs_ops = &queue_sysfs_ops, .default_attrs = default_attrs, }; diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h index 60272141ff1..b54a0348a89 100644 --- a/include/linux/blkdev.h +++ b/include/linux/blkdev.h @@ -539,15 +539,12 @@ extern void generic_make_request(struct bio *bio); extern void blk_put_request(struct request *); extern void blk_end_sync_rq(struct request *rq); extern void blk_attempt_remerge(request_queue_t *, struct request *); -extern void __blk_attempt_remerge(request_queue_t *, struct request *); extern struct request *blk_get_request(request_queue_t *, int, int); extern void blk_insert_request(request_queue_t *, struct request *, int, void *); extern void blk_requeue_request(request_queue_t *, struct request *); extern void blk_plug_device(request_queue_t *); extern int blk_remove_plug(request_queue_t *); extern void blk_recount_segments(request_queue_t *, struct bio *); -extern int blk_phys_contig_segment(request_queue_t *q, struct bio *, struct bio *); -extern int blk_hw_contig_segment(request_queue_t *q, struct bio *, struct bio *); extern int scsi_cmd_ioctl(struct file *, struct gendisk *, unsigned int, void __user *); extern void blk_start_queue(request_queue_t *q); extern void blk_stop_queue(request_queue_t *q); @@ -631,7 +628,6 @@ extern void blk_queue_dma_alignment(request_queue_t *, int); extern struct backing_dev_info *blk_get_backing_dev_info(struct block_device *bdev); extern void blk_queue_ordered(request_queue_t *, int); extern void blk_queue_issue_flush_fn(request_queue_t *, issue_flush_fn *); -extern int blkdev_scsi_issue_flush_fn(request_queue_t *, struct gendisk *, sector_t *); extern struct request *blk_start_pre_flush(request_queue_t *,struct request *); extern int blk_complete_barrier_rq(request_queue_t *, struct request *, int); extern int blk_complete_barrier_rq_locked(request_queue_t *, struct request *, int); @@ -675,8 +671,6 @@ extern int blkdev_issue_flush(struct block_device *, sector_t *); #define blkdev_entry_to_request(entry) list_entry((entry), struct request, queuelist) -extern void drive_stat_acct(struct request *, int, int); - static inline int queue_hardsect_size(request_queue_t *q) { int retval = 512; |