diff options
Diffstat (limited to 'drivers/ide/ide-io.c')
-rw-r--r-- | drivers/ide/ide-io.c | 45 |
1 files changed, 25 insertions, 20 deletions
diff --git a/drivers/ide/ide-io.c b/drivers/ide/ide-io.c index 999dac054bc..177db6d5b2f 100644 --- a/drivers/ide/ide-io.c +++ b/drivers/ide/ide-io.c @@ -430,6 +430,26 @@ static inline void ide_unlock_host(struct ide_host *host) } } +static void __ide_requeue_and_plug(struct request_queue *q, struct request *rq) +{ + if (rq) + blk_requeue_request(q, rq); + if (rq || blk_peek_request(q)) { + /* Use 3ms as that was the old plug delay */ + blk_delay_queue(q, 3); + } +} + +void ide_requeue_and_plug(ide_drive_t *drive, struct request *rq) +{ + struct request_queue *q = drive->queue; + unsigned long flags; + + spin_lock_irqsave(q->queue_lock, flags); + __ide_requeue_and_plug(q, rq); + spin_unlock_irqrestore(q->queue_lock, flags); +} + /* * Issue a new request to a device. */ @@ -440,6 +460,7 @@ void do_ide_request(struct request_queue *q) struct ide_host *host = hwif->host; struct request *rq = NULL; ide_startstop_t startstop; + unsigned long queue_run_ms = 3; /* old plug delay */ spin_unlock_irq(q->queue_lock); @@ -459,6 +480,9 @@ repeat: prev_port = hwif->host->cur_port; if (drive->dev_flags & IDE_DFLAG_SLEEPING && time_after(drive->sleep, jiffies)) { + unsigned long left = jiffies - drive->sleep; + + queue_run_ms = jiffies_to_msecs(left + 1); ide_unlock_port(hwif); goto plug_device; } @@ -546,26 +570,7 @@ plug_device: ide_unlock_host(host); plug_device_2: spin_lock_irq(q->queue_lock); - - if (rq) - blk_requeue_request(q, rq); - if (!elv_queue_empty(q)) - blk_plug_device(q); -} - -void ide_requeue_and_plug(ide_drive_t *drive, struct request *rq) -{ - struct request_queue *q = drive->queue; - unsigned long flags; - - spin_lock_irqsave(q->queue_lock, flags); - - if (rq) - blk_requeue_request(q, rq); - if (!elv_queue_empty(q)) - blk_plug_device(q); - - spin_unlock_irqrestore(q->queue_lock, flags); + __ide_requeue_and_plug(q, rq); } static int drive_is_ready(ide_drive_t *drive) |