Prev: [PATCH 8/9] ide: stop using q->prepare_flush_fn
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From: FUJITA Tomonori on 3 Jul 2010 04:50
This removes q->prepare_flush_fn completely (changes the
blk_queue_ordered API).

Signed-off-by: FUJITA Tomonori <fujita.tomonori(a)lab.ntt.co.jp>
---
block/blk-barrier.c | 7 +------
drivers/block/brd.c | 2 +-
drivers/block/loop.c | 2 +-
drivers/block/osdblk.c | 2 +-
drivers/block/ps3disk.c | 2 +-
drivers/block/virtio_blk.c | 4 ++--
drivers/block/xen-blkfront.c | 3 +--
drivers/ide/ide-disk.c | 2 +-
drivers/md/dm.c | 2 +-
drivers/mmc/card/queue.c | 2 +-
drivers/s390/block/dasd.c | 2 +-
drivers/scsi/sd.c | 2 +-
include/linux/blkdev.h | 4 +---
13 files changed, 14 insertions(+), 22 deletions(-)

diff --git a/block/blk-barrier.c b/block/blk-barrier.c
index 7ce0a32..eefbde8 100644
--- a/block/blk-barrier.c
+++ b/block/blk-barrier.c
@@ -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);
}
diff --git a/drivers/block/brd.c b/drivers/block/brd.c
index 1b218c6..1d2c186 100644
--- a/drivers/block/brd.c
+++ b/drivers/block/brd.c
@@ -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);

diff --git a/drivers/block/loop.c b/drivers/block/loop.c
index fedfdb7..d285a54 100644
--- a/drivers/block/loop.c
+++ b/drivers/block/loop.c
@@ -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);
diff --git a/drivers/block/osdblk.c b/drivers/block/osdblk.c
index 9639565..2284b4f 100644
--- a/drivers/block/osdblk.c
+++ b/drivers/block/osdblk.c
@@ -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;

diff --git a/drivers/block/ps3disk.c b/drivers/block/ps3disk.c
index ab528a4..e9da874 100644
--- a/drivers/block/ps3disk.c
+++ b/drivers/block/ps3disk.c
@@ -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);
diff --git a/drivers/block/virtio_blk.c b/drivers/block/virtio_blk.c
index b277f9e..0a3222f 100644
--- a/drivers/block/virtio_blk.c
+++ b/drivers/block/virtio_blk.c
@@ -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))
diff --git a/drivers/block/xen-blkfront.c b/drivers/block/xen-blkfront.c
index 495533e..76af65b 100644
--- a/drivers/block/xen-blkfront.c
+++ b/drivers/block/xen-blkfront.c
@@ -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;
diff --git a/drivers/ide/ide-disk.c b/drivers/ide/ide-disk.c
index c22e622..7433e07 100644
--- a/drivers/ide/ide-disk.c
+++ b/drivers/ide/ide-disk.c
@@ -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);
diff --git a/drivers/md/dm.c b/drivers/md/dm.c
index 00c8105..d505a96 100644
--- a/drivers/md/dm.c
+++ b/drivers/md/dm.c
@@ -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)
diff --git a/drivers/mmc/card/queue.c b/drivers/mmc/card/queue.c
index ec92bcb..c77eb49 100644
--- a/drivers/mmc/card/queue.c
+++ b/drivers/mmc/card/queue.c
@@ -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
diff --git a/drivers/s390/block/dasd.c b/drivers/s390/block/dasd.c
index 33975e9..17b033d 100644
--- a/drivers/s390/block/dasd.c
+++ b/drivers/s390/block/dasd.c
@@ -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);
}

/*
diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c
index e8c295e..d9a4314 100644
--- a/drivers/scsi/sd.c
+++ b/drivers/scsi/sd.c
@@ -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);
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index 6bba04c..3a2c5d9 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -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 *);
--
1.6.5

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Prev: [PATCH 8/9] ide: stop using q->prepare_flush_fn
Next: [PATCH 6/9] dm: stop using q->prepare_flush_fn