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block: remove q->prepare_flush_fn completely 

This removes q->prepare_flush_fn completely (changes the
blk_queue_ordered API).

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
This commit is contained in:
FUJITA Tomonori 2010-07-03 17:45:40 +09:00 committed by Jens Axboe
parent afc2306810
commit 00fff26539
13 changed files with 14 additions and 22 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
block/blk-barrier.c
View File

@ -13,7 +13,6 @@
* blk_queue_ordered - does this queue support ordered writes
* @q: the request queue
* @ordered: one of QUEUE_ORDERED_*
* @prepare_flush_fn: rq setup helper for cache flush ordered writes
*
* Description:
* For journalled file systems, doing ordered writes on a commit
@ -22,8 +21,7 @@
* feature should call this function and indicate so.
*
**/
int blk_queue_ordered(struct request_queue *q, unsigned ordered,
prepare_flush_fn *prepare_flush_fn)
int blk_queue_ordered(struct request_queue *q, unsigned ordered)
{
if (ordered != QUEUE_ORDERED_NONE &&
ordered != QUEUE_ORDERED_DRAIN &&
@ -38,7 +36,6 @@ int blk_queue_ordered(struct request_queue *q, unsigned ordered,
q->ordered = ordered;
q->next_ordered = ordered;
q->prepare_flush_fn = prepare_flush_fn;
return 0;
}
@ -140,8 +137,6 @@ static void queue_flush(struct request_queue *q, unsigned which)
rq->cmd_flags = REQ_HARDBARRIER | REQ_FLUSH;
rq->rq_disk = q->bar_rq.rq_disk;
rq->end_io = end_io;
if (q->prepare_flush_fn)
q->prepare_flush_fn(q, rq);
elv_insert(q, rq, ELEVATOR_INSERT_FRONT);
}

2
drivers/block/brd.c
View File

@ -479,7 +479,7 @@ static struct brd_device *brd_alloc(int i)
if (!brd->brd_queue)
goto out_free_dev;
blk_queue_make_request(brd->brd_queue, brd_make_request);
blk_queue_ordered(brd->brd_queue, QUEUE_ORDERED_TAG, NULL);
blk_queue_ordered(brd->brd_queue, QUEUE_ORDERED_TAG);
blk_queue_max_hw_sectors(brd->brd_queue, 1024);
blk_queue_bounce_limit(brd->brd_queue, BLK_BOUNCE_ANY);

2
drivers/block/loop.c
View File

@ -831,7 +831,7 @@ static int loop_set_fd(struct loop_device *lo, fmode_t mode,
lo->lo_queue->unplug_fn = loop_unplug;
if (!(lo_flags & LO_FLAGS_READ_ONLY) && file->f_op->fsync)
blk_queue_ordered(lo->lo_queue, QUEUE_ORDERED_DRAIN, NULL);
blk_queue_ordered(lo->lo_queue, QUEUE_ORDERED_DRAIN);
set_capacity(lo->lo_disk, size);
bd_set_size(bdev, size << 9);

2
drivers/block/osdblk.c
View File

@ -439,7 +439,7 @@ static int osdblk_init_disk(struct osdblk_device *osdev)
blk_queue_stack_limits(q, osd_request_queue(osdev->osd));
blk_queue_prep_rq(q, blk_queue_start_tag);
blk_queue_ordered(q, QUEUE_ORDERED_DRAIN_FLUSH, NULL);
blk_queue_ordered(q, QUEUE_ORDERED_DRAIN_FLUSH);
disk->queue = q;

2
drivers/block/ps3disk.c
View File

@ -468,7 +468,7 @@ static int __devinit ps3disk_probe(struct ps3_system_bus_device *_dev)
blk_queue_dma_alignment(queue, dev->blk_size-1);
blk_queue_logical_block_size(queue, dev->blk_size);
blk_queue_ordered(queue, QUEUE_ORDERED_DRAIN_FLUSH, NULL);
blk_queue_ordered(queue, QUEUE_ORDERED_DRAIN_FLUSH);
blk_queue_max_segments(queue, -1);
blk_queue_max_segment_size(queue, dev->bounce_size);

4
drivers/block/virtio_blk.c
View File

@ -366,9 +366,9 @@ static int __devinit virtblk_probe(struct virtio_device *vdev)
/* If barriers are supported, tell block layer that queue is ordered */
if (virtio_has_feature(vdev, VIRTIO_BLK_F_FLUSH))
blk_queue_ordered(q, QUEUE_ORDERED_DRAIN_FLUSH, NULL);
blk_queue_ordered(q, QUEUE_ORDERED_DRAIN_FLUSH);
else if (virtio_has_feature(vdev, VIRTIO_BLK_F_BARRIER))
blk_queue_ordered(q, QUEUE_ORDERED_TAG, NULL);
blk_queue_ordered(q, QUEUE_ORDERED_TAG);
/* If disk is read-only in the host, the guest should obey */
if (virtio_has_feature(vdev, VIRTIO_BLK_F_RO))

3
drivers/block/xen-blkfront.c
View File

@ -373,8 +373,7 @@ static int xlvbd_barrier(struct blkfront_info *info)
int err;
err = blk_queue_ordered(info->rq,
info->feature_barrier ? QUEUE_ORDERED_DRAIN : QUEUE_ORDERED_NONE,
NULL);
info->feature_barrier ? QUEUE_ORDERED_DRAIN : QUEUE_ORDERED_NONE);
if (err)
return err;

2
drivers/ide/ide-disk.c
View File

@ -549,7 +549,7 @@ static void update_ordered(ide_drive_t *drive)
} else
ordered = QUEUE_ORDERED_DRAIN;
blk_queue_ordered(drive->queue, ordered, NULL);
blk_queue_ordered(drive->queue, ordered);
}
ide_devset_get_flag(wcache, IDE_DFLAG_WCACHE);

2
drivers/md/dm.c
View File

@ -1901,7 +1901,7 @@ static struct mapped_device *alloc_dev(int minor)
blk_queue_softirq_done(md->queue, dm_softirq_done);
blk_queue_prep_rq(md->queue, dm_prep_fn);
blk_queue_lld_busy(md->queue, dm_lld_busy);
blk_queue_ordered(md->queue, QUEUE_ORDERED_DRAIN_FLUSH, NULL);
blk_queue_ordered(md->queue, QUEUE_ORDERED_DRAIN_FLUSH);
md->disk = alloc_disk(1);
if (!md->disk)

2
drivers/mmc/card/queue.c
View File

@ -128,7 +128,7 @@ int mmc_init_queue(struct mmc_queue *mq, struct mmc_card *card, spinlock_t *lock
mq->req = NULL;
blk_queue_prep_rq(mq->queue, mmc_prep_request);
blk_queue_ordered(mq->queue, QUEUE_ORDERED_DRAIN, NULL);
blk_queue_ordered(mq->queue, QUEUE_ORDERED_DRAIN);
queue_flag_set_unlocked(QUEUE_FLAG_NONROT, mq->queue);
#ifdef CONFIG_MMC_BLOCK_BOUNCE

2
drivers/s390/block/dasd.c
View File

@ -2196,7 +2196,7 @@ static void dasd_setup_queue(struct dasd_block *block)
*/
blk_queue_max_segment_size(block->request_queue, PAGE_SIZE);
blk_queue_segment_boundary(block->request_queue, PAGE_SIZE - 1);
blk_queue_ordered(block->request_queue, QUEUE_ORDERED_DRAIN, NULL);
blk_queue_ordered(block->request_queue, QUEUE_ORDERED_DRAIN);
}
/*

2
drivers/scsi/sd.c
View File

@ -2135,7 +2135,7 @@ static int sd_revalidate_disk(struct gendisk *disk)
else
ordered = QUEUE_ORDERED_DRAIN;
blk_queue_ordered(sdkp->disk->queue, ordered, NULL);
blk_queue_ordered(sdkp->disk->queue, ordered);
set_capacity(disk, sdkp->capacity);
kfree(buffer);

4
include/linux/blkdev.h
View File

@ -212,7 +212,6 @@ struct bvec_merge_data {
};
typedef int (merge_bvec_fn) (struct request_queue *, struct bvec_merge_data *,
struct bio_vec *);
typedef void (prepare_flush_fn) (struct request_queue *, struct request *);
typedef void (softirq_done_fn)(struct request *);
typedef int (dma_drain_needed_fn)(struct request *);
typedef int (lld_busy_fn) (struct request_queue *q);
@ -286,7 +285,6 @@ struct request_queue
unprep_rq_fn *unprep_rq_fn;
unplug_fn *unplug_fn;
merge_bvec_fn *merge_bvec_fn;
prepare_flush_fn *prepare_flush_fn;
softirq_done_fn *softirq_done_fn;
rq_timed_out_fn *rq_timed_out_fn;
dma_drain_needed_fn *dma_drain_needed;
@ -896,7 +894,7 @@ extern void blk_queue_softirq_done(struct request_queue *, softirq_done_fn *);
extern void blk_queue_rq_timed_out(struct request_queue *, rq_timed_out_fn *);
extern void blk_queue_rq_timeout(struct request_queue *, unsigned int);
extern struct backing_dev_info *blk_get_backing_dev_info(struct block_device *bdev);
extern int blk_queue_ordered(struct request_queue *, unsigned, prepare_flush_fn *);
extern int blk_queue_ordered(struct request_queue *, unsigned);
extern bool blk_do_ordered(struct request_queue *, struct request **);
extern unsigned blk_ordered_cur_seq(struct request_queue *);
extern unsigned blk_ordered_req_seq(struct request *);