From c00895ab2f08df7044e58ee01c38bf0a661ea0eb Mon Sep 17 00:00:00 2001 From: Jens Axboe Date: Sat, 30 Sep 2006 20:29:12 +0200 Subject: [PATCH] [PATCH] Remove ->waiting member from struct request As the comments indicates in blkdev.h, we can fold it into ->end_io_data usage as that is really what ->waiting is. Fixup the users of blk_end_sync_rq(). Signed-off-by: Jens Axboe --- block/elevator.c | 3 +-- block/ll_rw_blk.c | 13 ++++++------- drivers/block/DAC960.c | 2 +- drivers/block/paride/pd.c | 3 +-- drivers/block/pktcdvd.c | 2 +- drivers/ide/ide-io.c | 13 ++++++------- drivers/ide/ide-tape.c | 2 +- drivers/ide/ide.c | 4 ++-- include/linux/blkdev.h | 3 +-- 9 files changed, 20 insertions(+), 25 deletions(-) diff --git a/block/elevator.c b/block/elevator.c index cbbc36b..924b81b 100644 --- a/block/elevator.c +++ b/block/elevator.c @@ -67,8 +67,7 @@ inline int elv_rq_merge_ok(struct request *rq, struct bio *bio) /* * same device and no special stuff set, merge is ok */ - if (rq->rq_disk == bio->bi_bdev->bd_disk && - !rq->waiting && !rq->special) + if (rq->rq_disk == bio->bi_bdev->bd_disk && !rq->special) return 1; return 0; diff --git a/block/ll_rw_blk.c b/block/ll_rw_blk.c index d388486..3b6aad2 100644 --- a/block/ll_rw_blk.c +++ b/block/ll_rw_blk.c @@ -291,7 +291,6 @@ static inline void rq_init(request_queue_t *q, struct request *rq) rq->buffer = NULL; rq->ref_count = 1; rq->q = q; - rq->waiting = NULL; rq->special = NULL; rq->data_len = 0; rq->data = NULL; @@ -451,6 +450,7 @@ static void queue_flush(request_queue_t *q, unsigned which) rq->cmd_flags = REQ_HARDBARRIER; rq_init(q, rq); rq->elevator_private = NULL; + rq->elevator_private2 = NULL; rq->rq_disk = q->bar_rq.rq_disk; rq->rl = NULL; rq->end_io = end_io; @@ -479,6 +479,7 @@ static inline struct request *start_ordered(request_queue_t *q, rq->cmd_flags |= REQ_RW; rq->cmd_flags |= q->ordered & QUEUE_ORDERED_FUA ? REQ_FUA : 0; rq->elevator_private = NULL; + rq->elevator_private2 = NULL; rq->rl = NULL; init_request_from_bio(rq, q->orig_bar_rq->bio); rq->end_io = bar_end_io; @@ -2569,10 +2570,9 @@ int blk_execute_rq(request_queue_t *q, struct gendisk *bd_disk, rq->sense_len = 0; } - rq->waiting = &wait; + rq->end_io_data = &wait; blk_execute_rq_nowait(q, bd_disk, rq, at_head, blk_end_sync_rq); wait_for_completion(&wait); - rq->waiting = NULL; if (rq->errors) err = -EIO; @@ -2736,9 +2736,9 @@ EXPORT_SYMBOL(blk_put_request); */ void blk_end_sync_rq(struct request *rq, int error) { - struct completion *waiting = rq->waiting; + struct completion *waiting = rq->end_io_data; - rq->waiting = NULL; + rq->end_io_data = NULL; __blk_put_request(rq->q, rq); /* @@ -2801,7 +2801,7 @@ static int attempt_merge(request_queue_t *q, struct request *req, if (rq_data_dir(req) != rq_data_dir(next) || req->rq_disk != next->rq_disk - || next->waiting || next->special) + || next->special) return 0; /* @@ -2886,7 +2886,6 @@ static void init_request_from_bio(struct request *req, struct bio *bio) req->nr_phys_segments = bio_phys_segments(req->q, bio); req->nr_hw_segments = bio_hw_segments(req->q, bio); req->buffer = bio_data(bio); /* see ->buffer comment above */ - req->waiting = NULL; req->bio = req->biotail = bio; req->ioprio = bio_prio(bio); req->rq_disk = bio->bi_bdev->bd_disk; diff --git a/drivers/block/DAC960.c b/drivers/block/DAC960.c index a360215..2568640 100644 --- a/drivers/block/DAC960.c +++ b/drivers/block/DAC960.c @@ -3331,7 +3331,7 @@ static int DAC960_process_queue(DAC960_Controller_T *Controller, struct request_ Command->DmaDirection = PCI_DMA_TODEVICE; Command->CommandType = DAC960_WriteCommand; } - Command->Completion = Request->waiting; + Command->Completion = Request->end_io_data; Command->LogicalDriveNumber = (long)Request->rq_disk->private_data; Command->BlockNumber = Request->sector; Command->BlockCount = Request->nr_sectors; diff --git a/drivers/block/paride/pd.c b/drivers/block/paride/pd.c index 12ff1a2..500d2eb 100644 --- a/drivers/block/paride/pd.c +++ b/drivers/block/paride/pd.c @@ -722,11 +722,10 @@ static int pd_special_command(struct pd_unit *disk, rq.rq_status = RQ_ACTIVE; rq.rq_disk = disk->gd; rq.ref_count = 1; - rq.waiting = &wait; + rq.end_io_data = &wait; rq.end_io = blk_end_sync_rq; blk_insert_request(disk->gd->queue, &rq, 0, func); wait_for_completion(&wait); - rq.waiting = NULL; if (rq.errors) err = -EIO; blk_put_request(&rq); diff --git a/drivers/block/pktcdvd.c b/drivers/block/pktcdvd.c index 42891d2..888d1ac 100644 --- a/drivers/block/pktcdvd.c +++ b/drivers/block/pktcdvd.c @@ -375,7 +375,7 @@ static int pkt_generic_packet(struct pktcdvd_device *pd, struct packet_command * rq->cmd_len = COMMAND_SIZE(rq->cmd[0]); rq->ref_count++; - rq->waiting = &wait; + rq->end_io_data = &wait; rq->end_io = blk_end_sync_rq; elv_add_request(q, rq, ELEVATOR_INSERT_BACK, 1); generic_unplug_device(q); diff --git a/drivers/ide/ide-io.c b/drivers/ide/ide-io.c index 3436b1f..a3ffb04 100644 --- a/drivers/ide/ide-io.c +++ b/drivers/ide/ide-io.c @@ -141,7 +141,7 @@ enum { static void ide_complete_power_step(ide_drive_t *drive, struct request *rq, u8 stat, u8 error) { - struct request_pm_state *pm = rq->end_io_data; + struct request_pm_state *pm = rq->data; if (drive->media != ide_disk) return; @@ -164,7 +164,7 @@ static void ide_complete_power_step(ide_drive_t *drive, struct request *rq, u8 s static ide_startstop_t ide_start_power_step(ide_drive_t *drive, struct request *rq) { - struct request_pm_state *pm = rq->end_io_data; + struct request_pm_state *pm = rq->data; ide_task_t *args = rq->special; memset(args, 0, sizeof(*args)); @@ -421,7 +421,7 @@ void ide_end_drive_cmd (ide_drive_t *drive, u8 stat, u8 err) } } } else if (blk_pm_request(rq)) { - struct request_pm_state *pm = rq->end_io_data; + struct request_pm_state *pm = rq->data; #ifdef DEBUG_PM printk("%s: complete_power_step(step: %d, stat: %x, err: %x)\n", drive->name, rq->pm->pm_step, stat, err); @@ -933,7 +933,7 @@ done: static void ide_check_pm_state(ide_drive_t *drive, struct request *rq) { - struct request_pm_state *pm = rq->end_io_data; + struct request_pm_state *pm = rq->data; if (blk_pm_suspend_request(rq) && pm->pm_step == ide_pm_state_start_suspend) @@ -1018,7 +1018,7 @@ static ide_startstop_t start_request (ide_drive_t *drive, struct request *rq) rq->cmd_type == REQ_TYPE_ATA_TASKFILE) return execute_drive_cmd(drive, rq); else if (blk_pm_request(rq)) { - struct request_pm_state *pm = rq->end_io_data; + struct request_pm_state *pm = rq->data; #ifdef DEBUG_PM printk("%s: start_power_step(step: %d)\n", drive->name, rq->pm->pm_step); @@ -1718,7 +1718,7 @@ int ide_do_drive_cmd (ide_drive_t *drive, struct request *rq, ide_action_t actio */ if (must_wait) { rq->ref_count++; - rq->waiting = &wait; + rq->end_io_data = &wait; rq->end_io = blk_end_sync_rq; } @@ -1736,7 +1736,6 @@ int ide_do_drive_cmd (ide_drive_t *drive, struct request *rq, ide_action_t actio err = 0; if (must_wait) { wait_for_completion(&wait); - rq->waiting = NULL; if (rq->errors) err = -EIO; diff --git a/drivers/ide/ide-tape.c b/drivers/ide/ide-tape.c index 643e4b9..66f9678 100644 --- a/drivers/ide/ide-tape.c +++ b/drivers/ide/ide-tape.c @@ -2773,7 +2773,7 @@ static void idetape_wait_for_request (ide_drive_t *drive, struct request *rq) return; } #endif /* IDETAPE_DEBUG_BUGS */ - rq->waiting = &wait; + rq->end_io_data = &wait; rq->end_io = blk_end_sync_rq; spin_unlock_irq(&tape->spinlock); wait_for_completion(&wait); diff --git a/drivers/ide/ide.c b/drivers/ide/ide.c index 9384a3f..2b1a138 100644 --- a/drivers/ide/ide.c +++ b/drivers/ide/ide.c @@ -1219,7 +1219,7 @@ static int generic_ide_suspend(struct device *dev, pm_message_t mesg) memset(&args, 0, sizeof(args)); rq.cmd_type = REQ_TYPE_PM_SUSPEND; rq.special = &args; - rq.end_io_data = &rqpm; + rq.data = &rqpm; rqpm.pm_step = ide_pm_state_start_suspend; if (mesg.event == PM_EVENT_PRETHAW) mesg.event = PM_EVENT_FREEZE; @@ -1240,7 +1240,7 @@ static int generic_ide_resume(struct device *dev) memset(&args, 0, sizeof(args)); rq.cmd_type = REQ_TYPE_PM_RESUME; rq.special = &args; - rq.end_io_data = &rqpm; + rq.data = &rqpm; rqpm.pm_step = ide_pm_state_start_resume; rqpm.pm_state = PM_EVENT_ON; diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h index d2dc171..604f231 100644 --- a/include/linux/blkdev.h +++ b/include/linux/blkdev.h @@ -266,7 +266,6 @@ struct request { request_queue_t *q; struct request_list *rl; - struct completion *waiting; void *special; char *buffer; @@ -285,7 +284,7 @@ struct request { int retries; /* - * completion callback. end_io_data should be folded in with waiting + * completion callback. */ rq_end_io_fn *end_io; void *end_io_data; -- 1.8.2.3