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path: root/drivers/ide/ide-io.c
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Diffstat (limited to 'drivers/ide/ide-io.c')
-rw-r--r--drivers/ide/ide-io.c45
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)