diff options
| -rw-r--r-- | block/ll_rw_blk.c | 56 | ||||
| -rw-r--r-- | drivers/block/ps3disk.c | 21 | ||||
| -rw-r--r-- | drivers/ide/ide-disk.c | 29 | ||||
| -rw-r--r-- | drivers/md/dm-table.c | 28 | ||||
| -rw-r--r-- | drivers/md/dm.c | 16 | ||||
| -rw-r--r-- | drivers/md/dm.h | 1 | ||||
| -rw-r--r-- | drivers/md/linear.c | 20 | ||||
| -rw-r--r-- | drivers/md/md.c | 1 | ||||
| -rw-r--r-- | drivers/md/multipath.c | 30 | ||||
| -rw-r--r-- | drivers/md/raid0.c | 21 | ||||
| -rw-r--r-- | drivers/md/raid1.c | 31 | ||||
| -rw-r--r-- | drivers/md/raid10.c | 31 | ||||
| -rw-r--r-- | drivers/md/raid5.c | 31 | ||||
| -rw-r--r-- | drivers/message/i2o/i2o_block.c | 24 | ||||
| -rw-r--r-- | drivers/scsi/sd.c | 22 | ||||
| -rw-r--r-- | include/linux/blkdev.h | 3 |
16 files changed, 36 insertions, 329 deletions
diff --git a/block/ll_rw_blk.c b/block/ll_rw_blk.c index 4fde3a3c92d..4df7d027eb0 100644 --- a/block/ll_rw_blk.c +++ b/block/ll_rw_blk.c @@ -304,23 +304,6 @@ int blk_queue_ordered(struct request_queue *q, unsigned ordered, EXPORT_SYMBOL(blk_queue_ordered); -/** - * blk_queue_issue_flush_fn - set function for issuing a flush - * @q: the request queue - * @iff: the function to be called issuing the flush - * - * Description: - * If a driver supports issuing a flush command, the support is notified - * to the block layer by defining it through this call. - * - **/ -void blk_queue_issue_flush_fn(struct request_queue *q, issue_flush_fn *iff) -{ - q->issue_flush_fn = iff; -} - -EXPORT_SYMBOL(blk_queue_issue_flush_fn); - /* * Cache flushing for ordered writes handling */ @@ -2666,6 +2649,14 @@ int blk_execute_rq(struct request_queue *q, struct gendisk *bd_disk, EXPORT_SYMBOL(blk_execute_rq); +static void bio_end_empty_barrier(struct bio *bio, int err) +{ + if (err) + clear_bit(BIO_UPTODATE, &bio->bi_flags); + + complete(bio->bi_private); +} + /** * blkdev_issue_flush - queue a flush * @bdev: blockdev to issue flush for @@ -2678,7 +2669,10 @@ EXPORT_SYMBOL(blk_execute_rq); */ int blkdev_issue_flush(struct block_device *bdev, sector_t *error_sector) { + DECLARE_COMPLETION_ONSTACK(wait); struct request_queue *q; + struct bio *bio; + int ret; if (bdev->bd_disk == NULL) return -ENXIO; @@ -2686,10 +2680,32 @@ int blkdev_issue_flush(struct block_device *bdev, sector_t *error_sector) q = bdev_get_queue(bdev); if (!q) return -ENXIO; - if (!q->issue_flush_fn) - return -EOPNOTSUPP; - return q->issue_flush_fn(q, bdev->bd_disk, error_sector); + bio = bio_alloc(GFP_KERNEL, 0); + if (!bio) + return -ENOMEM; + + bio->bi_end_io = bio_end_empty_barrier; + bio->bi_private = &wait; + bio->bi_bdev = bdev; + submit_bio(1 << BIO_RW_BARRIER, bio); + + wait_for_completion(&wait); + + /* + * The driver must store the error location in ->bi_sector, if + * it supports it. For non-stacked drivers, this should be copied + * from rq->sector. + */ + if (error_sector) + *error_sector = bio->bi_sector; + + ret = 0; + if (!bio_flagged(bio, BIO_UPTODATE)) + ret = -EIO; + + bio_put(bio); + return ret; } EXPORT_SYMBOL(blkdev_issue_flush); diff --git a/drivers/block/ps3disk.c b/drivers/block/ps3disk.c index 06d0552cf49..e354bfc070e 100644 --- a/drivers/block/ps3disk.c +++ b/drivers/block/ps3disk.c @@ -414,26 +414,6 @@ static void ps3disk_prepare_flush(struct request_queue *q, struct request *req) req->cmd_type = REQ_TYPE_FLUSH; } -static int ps3disk_issue_flush(struct request_queue *q, struct gendisk *gendisk, - sector_t *sector) -{ - struct ps3_storage_device *dev = q->queuedata; - struct request *req; - int res; - - dev_dbg(&dev->sbd.core, "%s:%u\n", __func__, __LINE__); - - req = blk_get_request(q, WRITE, __GFP_WAIT); - ps3disk_prepare_flush(q, req); - res = blk_execute_rq(q, gendisk, req, 0); - if (res) - dev_err(&dev->sbd.core, "%s:%u: flush request failed %d\n", - __func__, __LINE__, res); - blk_put_request(req); - return res; -} - - static unsigned long ps3disk_mask; static DEFINE_MUTEX(ps3disk_mask_mutex); @@ -506,7 +486,6 @@ static int __devinit ps3disk_probe(struct ps3_system_bus_device *_dev) blk_queue_dma_alignment(queue, dev->blk_size-1); blk_queue_hardsect_size(queue, dev->blk_size); - blk_queue_issue_flush_fn(queue, ps3disk_issue_flush); blk_queue_ordered(queue, QUEUE_ORDERED_DRAIN_FLUSH, ps3disk_prepare_flush); diff --git a/drivers/ide/ide-disk.c b/drivers/ide/ide-disk.c index 4754769eda9..92177ca48b4 100644 --- a/drivers/ide/ide-disk.c +++ b/drivers/ide/ide-disk.c @@ -716,32 +716,6 @@ static void idedisk_prepare_flush(struct request_queue *q, struct request *rq) rq->buffer = rq->cmd; } -static int idedisk_issue_flush(struct request_queue *q, struct gendisk *disk, - sector_t *error_sector) -{ - ide_drive_t *drive = q->queuedata; - struct request *rq; - int ret; - - if (!drive->wcache) - return 0; - - rq = blk_get_request(q, WRITE, __GFP_WAIT); - - idedisk_prepare_flush(q, rq); - - ret = blk_execute_rq(q, disk, rq, 0); - - /* - * if we failed and caller wants error offset, get it - */ - if (ret && error_sector) - *error_sector = ide_get_error_location(drive, rq->cmd); - - blk_put_request(rq); - return ret; -} - /* * This is tightly woven into the driver->do_special can not touch. * DON'T do it again until a total personality rewrite is committed. @@ -781,7 +755,6 @@ static void update_ordered(ide_drive_t *drive) struct hd_driveid *id = drive->id; unsigned ordered = QUEUE_ORDERED_NONE; prepare_flush_fn *prep_fn = NULL; - issue_flush_fn *issue_fn = NULL; if (drive->wcache) { unsigned long long capacity; @@ -805,13 +778,11 @@ static void update_ordered(ide_drive_t *drive) if (barrier) { ordered = QUEUE_ORDERED_DRAIN_FLUSH; prep_fn = idedisk_prepare_flush; - issue_fn = idedisk_issue_flush; } } else ordered = QUEUE_ORDERED_DRAIN; blk_queue_ordered(drive->queue, ordered, prep_fn); - blk_queue_issue_flush_fn(drive->queue, issue_fn); } static int write_cache(ide_drive_t *drive, int arg) diff --git a/drivers/md/dm-table.c b/drivers/md/dm-table.c index 2bcde5798b5..fbe477bb2c6 100644 --- a/drivers/md/dm-table.c +++ b/drivers/md/dm-table.c @@ -999,33 +999,6 @@ void dm_table_unplug_all(struct dm_table *t) } } -int dm_table_flush_all(struct dm_table *t) -{ - struct list_head *d, *devices = dm_table_get_devices(t); - int ret = 0; - unsigned i; - - for (i = 0; i < t->num_targets; i++) - if (t->targets[i].type->flush) - t->targets[i].type->flush(&t->targets[i]); - - for (d = devices->next; d != devices; d = d->next) { - struct dm_dev *dd = list_entry(d, struct dm_dev, list); - struct request_queue *q = bdev_get_queue(dd->bdev); - int err; - - if (!q->issue_flush_fn) - err = -EOPNOTSUPP; - else - err = q->issue_flush_fn(q, dd->bdev->bd_disk, NULL); - - if (!ret) - ret = err; - } - - return ret; -} - struct mapped_device *dm_table_get_md(struct dm_table *t) { dm_get(t->md); @@ -1043,4 +1016,3 @@ EXPORT_SYMBOL(dm_table_get_md); EXPORT_SYMBOL(dm_table_put); EXPORT_SYMBOL(dm_table_get); EXPORT_SYMBOL(dm_table_unplug_all); -EXPORT_SYMBOL(dm_table_flush_all); diff --git a/drivers/md/dm.c b/drivers/md/dm.c index 167765c4774..d837d37f620 100644 --- a/drivers/md/dm.c +++ b/drivers/md/dm.c @@ -840,21 +840,6 @@ static int dm_request(struct request_queue *q, struct bio *bio) return 0; } -static int dm_flush_all(struct request_queue *q, struct gendisk *disk, - sector_t *error_sector) -{ - struct mapped_device *md = q->queuedata; - struct dm_table *map = dm_get_table(md); - int ret = -ENXIO; - - if (map) { - ret = dm_table_flush_all(map); - dm_table_put(map); - } - - return ret; -} - static void dm_unplug_all(struct request_queue *q) { struct mapped_device *md = q->queuedata; @@ -1003,7 +988,6 @@ static struct mapped_device *alloc_dev(int minor) blk_queue_make_request(md->queue, dm_request); blk_queue_bounce_limit(md->queue, BLK_BOUNCE_ANY); md->queue->unplug_fn = dm_unplug_all; - md->queue->issue_flush_fn = dm_flush_all; md->io_pool = mempool_create_slab_pool(MIN_IOS, _io_cache); if (!md->io_pool) diff --git a/drivers/md/dm.h b/drivers/md/dm.h index 462ee652a89..4b3faa45277 100644 --- a/drivers/md/dm.h +++ b/drivers/md/dm.h @@ -111,7 +111,6 @@ void dm_table_postsuspend_targets(struct dm_table *t); int dm_table_resume_targets(struct dm_table *t); int dm_table_any_congested(struct dm_table *t, int bdi_bits); void dm_table_unplug_all(struct dm_table *t); -int dm_table_flush_all(struct dm_table *t); /*----------------------------------------------------------------- * A registry of target types. diff --git a/drivers/md/linear.c b/drivers/md/linear.c index 550148770bb..56a11f6c127 100644 --- a/drivers/md/linear.c +++ b/drivers/md/linear.c @@ -92,25 +92,6 @@ static void linear_unplug(struct request_queue *q) } } -static int linear_issue_flush(struct request_queue *q, struct gendisk *disk, - sector_t *error_sector) -{ - mddev_t *mddev = q->queuedata; - linear_conf_t *conf = mddev_to_conf(mddev); - int i, ret = 0; - - for (i=0; i < mddev->raid_disks && ret == 0; i++) { - struct block_device *bdev = conf->disks[i].rdev->bdev; - struct request_queue *r_queue = bdev_get_queue(bdev); - - if (!r_queue->issue_flush_fn) - ret = -EOPNOTSUPP; - else - ret = r_queue->issue_flush_fn(r_queue, bdev->bd_disk, error_sector); - } - return ret; -} - static int linear_congested(void *data, int bits) { mddev_t *mddev = data; @@ -279,7 +260,6 @@ static int linear_run (mddev_t *mddev) blk_queue_merge_bvec(mddev->queue, linear_mergeable_bvec); mddev->queue->unplug_fn = linear_unplug; - mddev->queue->issue_flush_fn = linear_issue_flush; mddev->queue->backing_dev_info.congested_fn = linear_congested; mddev->queue->backing_dev_info.congested_data = mddev; return 0; diff --git a/drivers/md/md.c b/drivers/md/md.c index acf1b81b47c..0dc563d76b3 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -3463,7 +3463,6 @@ static int do_md_stop(mddev_t * mddev, int mode) mddev->pers->stop(mddev); mddev->queue->merge_bvec_fn = NULL; mddev->queue->unplug_fn = NULL; - mddev->queue->issue_flush_fn = NULL; mddev->queue->backing_dev_info.congested_fn = NULL; if (mddev->pers->sync_request) sysfs_remove_group(&mddev->kobj, &md_redundancy_group); diff --git a/drivers/md/multipath.c b/drivers/md/multipath.c index f2a63f394ad..b35731cceac 100644 --- a/drivers/md/multipath.c +++ b/drivers/md/multipath.c @@ -194,35 +194,6 @@ static void multipath_status (struct seq_file *seq, mddev_t *mddev) seq_printf (seq, "]"); } -static int multipath_issue_flush(struct request_queue *q, struct gendisk *disk, - sector_t *error_sector) -{ - mddev_t *mddev = q->queuedata; - multipath_conf_t *conf = mddev_to_conf(mddev); - int i, ret = 0; - - rcu_read_lock(); - for (i=0; i<mddev->raid_disks && ret == 0; i++) { - mdk_rdev_t *rdev = rcu_dereference(conf->multipaths[i].rdev); - if (rdev && !test_bit(Faulty, &rdev->flags)) { - struct block_device *bdev = rdev->bdev; - struct request_queue *r_queue = bdev_get_queue(bdev); - - if (!r_queue->issue_flush_fn) - ret = -EOPNOTSUPP; - else { - atomic_inc(&rdev->nr_pending); - rcu_read_unlock(); - ret = r_queue->issue_flush_fn(r_queue, bdev->bd_disk, - error_sector); - rdev_dec_pending(rdev, mddev); - rcu_read_lock(); - } - } - } - rcu_read_unlock(); - return ret; -} static int multipath_congested(void *data, int bits) { mddev_t *mddev = data; @@ -527,7 +498,6 @@ static int multipath_run (mddev_t *mddev) mddev->array_size = mddev->size; mddev->queue->unplug_fn = multipath_unplug; - mddev->queue->issue_flush_fn = multipath_issue_flush; mddev->queue->backing_dev_info.congested_fn = multipath_congested; mddev->queue->backing_dev_info.congested_data = mddev; diff --git a/drivers/md/raid0.c b/drivers/md/raid0.c index ef0da2d8495..e79e1a538d4 100644 --- a/drivers/md/raid0.c +++ b/drivers/md/raid0.c @@ -40,26 +40,6 @@ static void raid0_unplug(struct request_queue *q) } } -static int raid0_issue_flush(struct request_queue *q, struct gendisk *disk, - sector_t *error_sector) -{ - mddev_t *mddev = q->queuedata; - raid0_conf_t *conf = mddev_to_conf(mddev); - mdk_rdev_t **devlist = conf->strip_zone[0].dev; - int i, ret = 0; - - for (i=0; i<mddev->raid_disks && ret == 0; i++) { - struct block_device *bdev = devlist[i]->bdev; - struct request_queue *r_queue = bdev_get_queue(bdev); - - if (!r_queue->issue_flush_fn) - ret = -EOPNOTSUPP; - else - ret = r_queue->issue_flush_fn(r_queue, bdev->bd_disk, error_sector); - } - return ret; -} - static int raid0_congested(void *data, int bits) { mddev_t *mddev = data; @@ -250,7 +230,6 @@ static int create_strip_zones (mddev_t *mddev) mddev->queue->unplug_fn = raid0_unplug; - mddev->queue->issue_flush_fn = raid0_issue_flush; mddev->queue->backing_dev_info.congested_fn = raid0_congested; mddev->queue->backing_dev_info.congested_data = mddev; diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c index 6d03bea6fa5..0bcefad8241 100644 --- a/drivers/md/raid1.c +++ b/drivers/md/raid1.c @@ -567,36 +567,6 @@ static void raid1_unplug(struct request_queue *q) md_wakeup_thread(mddev->thread); } -static int raid1_issue_flush(struct request_queue *q, struct gendisk *disk, - sector_t *error_sector) -{ - mddev_t *mddev = q->queuedata; - conf_t *conf = mddev_to_conf(mddev); - int i, ret = 0; - - rcu_read_lock(); - for (i=0; i<mddev->raid_disks && ret == 0; i++) { - mdk_rdev_t *rdev = rcu_dereference(conf->mirrors[i].rdev); - if (rdev && !test_bit(Faulty, &rdev->flags)) { - struct block_device *bdev = rdev->bdev; - struct request_queue *r_queue = bdev_get_queue(bdev); - - if (!r_queue->issue_flush_fn) - ret = -EOPNOTSUPP; - else { - atomic_inc(&rdev->nr_pending); - rcu_read_unlock(); - ret = r_queue->issue_flush_fn(r_queue, bdev->bd_disk, - error_sector); - rdev_dec_pending(rdev, mddev); - rcu_read_lock(); - } - } - } - rcu_read_unlock(); - return ret; -} - static int raid1_congested(void *data, int bits) { mddev_t *mddev = data; @@ -1997,7 +1967,6 @@ static int run(mddev_t *mddev) mddev->array_size = mddev->size; mddev->queue->unplug_fn = raid1_unplug; - mddev->queue->issue_flush_fn = raid1_issue_flush; mddev->queue->backing_dev_info.congested_fn = raid1_congested; mddev->queue->backing_dev_info.congested_data = mddev; diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c index 25a96c42bdb..fc6607acb6e 100644 --- a/drivers/md/raid10.c +++ b/drivers/md/raid10.c @@ -611,36 +611,6 @@ static void raid10_unplug(struct request_queue *q) md_wakeup_thread(mddev->thread); } -static int raid10_issue_flush(struct request_queue *q, struct gendisk *disk, - sector_t *error_sector) -{ - mddev_t *mddev = q->queuedata; - conf_t *conf = mddev_to_conf(mddev); - int i, ret = 0; - - rcu_read_lock(); - for (i=0; i<mddev->raid_disks && ret == 0; i++) { - mdk_rdev_t *rdev = rcu_dereference(conf->mirrors[i].rdev); - if (rdev && !test_bit(Faulty, &rdev->flags)) { - struct block_device *bdev = rdev->bdev; - struct request_queue *r_queue = bdev_get_queue(bdev); - - if (!r_queue->issue_flush_fn) - ret = -EOPNOTSUPP; - else { - atomic_inc(&rdev->nr_pending); - rcu_read_unlock(); - ret = r_queue->issue_flush_fn(r_queue, bdev->bd_disk, - error_sector); - rdev_dec_pending(rdev, mddev); - rcu_read_lock(); - } - } - } - rcu_read_unlock(); - return ret; -} - static int raid10_congested(void *data, int bits) { mddev_t *mddev = data; @@ -2118,7 +2088,6 @@ static int run(mddev_t *mddev) mddev->resync_max_sectors = size << conf->chunk_shift; mddev->queue->unplug_fn = raid10_unplug; - mddev->queue->issue_flush_fn = raid10_issue_flush; mddev->queue->backing_dev_info.congested_fn = raid10_congested; mddev->queue->backing_dev_info.congested_data = mddev; diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c index caaca9e178b..8ee181a01f5 100644 --- a/drivers/md/raid5.c +++ b/drivers/md/raid5.c @@ -3204,36 +3204,6 @@ static void raid5_unplug_device(struct request_queue *q) unplug_slaves(mddev); } -static int raid5_issue_flush(struct request_queue *q, struct gendisk *disk, - sector_t *error_sector) -{ - mddev_t *mddev = q->queuedata; - raid5_conf_t *conf = mddev_to_conf(mddev); - int i, ret = 0; - - rcu_read_lock(); - for (i=0; i<mddev->raid_disks && ret == 0; i++) { - mdk_rdev_t *rdev = rcu_dereference(conf->disks[i].rdev); - if (rdev && !test_bit(Faulty, &rdev->flags)) { - struct block_device *bdev = rdev->bdev; - struct request_queue *r_queue = bdev_get_queue(bdev); - - if (!r_queue->issue_flush_fn) - ret = -EOPNOTSUPP; - else { - atomic_inc(&rdev->nr_pending); - rcu_read_unlock(); - ret = r_queue->issue_flush_fn(r_queue, bdev->bd_disk, - error_sector); - rdev_dec_pending(rdev, mddev); - rcu_read_lock(); - } - } - } - rcu_read_unlock(); - return ret; -} - static int raid5_congested(void *data, int bits) { mddev_t *mddev = data; @@ -4263,7 +4233,6 @@ static int run(mddev_t *mddev) mdname(mddev)); mddev->queue->unplug_fn = raid5_unplug_device; - mddev->queue->issue_flush_fn = raid5_issue_flush; mddev->queue->backing_dev_info.congested_data = mddev; mddev->queue->backing_dev_info.congested_fn = raid5_congested; diff --git a/drivers/message/i2o/i2o_block.c b/drivers/message/i2o/i2o_block.c index 50b2c733441..d602ba6d541 100644 --- a/drivers/message/i2o/i2o_block.c +++ b/drivers/message/i2o/i2o_block.c @@ -149,29 +149,6 @@ static int i2o_block_device_flush(struct i2o_device *dev) }; /** - * i2o_block_issue_flush - device-flush interface for block-layer - * @queue: the request queue of the device which should be flushed - * @disk: gendisk - * @error_sector: error offset - * - * Helper function to provide flush functionality to block-layer. - * - * Returns 0 on success or negative error code on failure. - */ - -static int i2o_block_issue_flush(struct request_queue * queue, struct gendisk *disk, - sector_t * error_sector) -{ - struct i2o_block_device *i2o_blk_dev = queue->queuedata; - int rc = -ENODEV; - - if (likely(i2o_blk_dev)) - rc = i2o_block_device_flush(i2o_blk_dev->i2o_dev); - - return rc; -} - -/** * i2o_block_device_mount - Mount (load) the media of device dev * @dev: I2O device which should receive the mount request * @media_id: Media Identifier @@ -1009,7 +986,6 @@ static struct i2o_block_device *i2o_block_device_alloc(void) } blk_queue_prep_rq(queue, i2o_block_prep_req_fn); - blk_queue_issue_flush_fn(queue, i2o_block_issue_flush); gd->major = I2O_MAJOR; gd->queue = queue; diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c index 0a3a528212c..69f542c4923 100644 --- a/drivers/scsi/sd.c +++ b/drivers/scsi/sd.c @@ -826,27 +826,6 @@ static int sd_sync_cache(struct scsi_disk *sdkp) return 0; } -static int sd_issue_flush(struct request_queue *q, struct gendisk *disk, - sector_t *error_sector) -{ - int ret = 0; - struct scsi_device *sdp = q->queuedata; - struct scsi_disk *sdkp; - - if (sdp->sdev_state != SDEV_RUNNING) - return -ENXIO; - - sdkp = scsi_disk_get_from_dev(&sdp->sdev_gendev); - - if (!sdkp) - return -ENODEV; - - if (sdkp->WCE) - ret = sd_sync_cache(sdkp); - scsi_disk_put(sdkp); - return ret; -} - static void sd_prepare_flush(struct request_queue *q, struct request *rq) { memset(rq->cmd, 0, sizeof(rq->cmd)); @@ -1697,7 +1676,6 @@ static int sd_probe(struct device *dev) sd_revalidate_disk(gd); blk_queue_prep_rq(sdp->request_queue, sd_prep_fn); - blk_queue_issue_flush_fn(sdp->request_queue, sd_issue_flush); gd->driverfs_dev = &sdp->sdev_gendev; gd->flags = GENHD_FL_DRIVERFS; diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h index fb2ff749dc1..bbf906a0b41 100644 --- a/include/linux/blkdev.h +++ b/include/linux/blkdev.h @@ -330,7 +330,6 @@ typedef void (unplug_fn) (struct request_queue *); struct bio_vec; typedef int (merge_bvec_fn) (struct request_queue *, struct bio *, struct bio_vec *); -typedef int (issue_flush_fn) (struct request_queue *, struct gendisk *, sector_t *); typedef void (prepare_flush_fn) (struct request_queue *, struct request *); typedef void (softirq_done_fn)(struct request *); @@ -368,7 +367,6 @@ struct request_queue prep_rq_fn *prep_rq_fn; unplug_fn *unplug_fn; merge_bvec_fn *merge_bvec_fn; - issue_flush_fn *issue_flush_fn; prepare_flush_fn *prepare_flush_fn; softirq_done_fn *softirq_done_fn; @@ -770,7 +768,6 @@ extern void blk_queue_dma_alignment(struct request_queue *, int); extern void blk_queue_softirq_done(struct request_queue *, softirq_done_fn *); 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 void blk_queue_issue_flush_fn(struct request_queue *, issue_flush_fn *); extern int 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 *); |