From 2fb211502e2c0513e12d677ed4d7891f3c5e1413 Mon Sep 17 00:00:00 2001 From: Bartlomiej Zolnierkiewicz Date: Fri, 2 Jan 2009 16:12:49 +0100 Subject: [PATCH] ide: remove IDE PM hack from do_ide_request() We now tell block layer that there is still work to do using blk_plug_device() so hack for IDE Power Management can be removed (it was buggy for hwgroups having more than 4 devices anyway). Signed-off-by: Bartlomiej Zolnierkiewicz --- drivers/ide/ide-io.c | 9 +-------- 1 file changed, 1 insertion(+), 8 deletions(-) diff --git a/drivers/ide/ide-io.c b/drivers/ide/ide-io.c index 23754bc5e595..40327d1e6a9f 100644 --- a/drivers/ide/ide-io.c +++ b/drivers/ide/ide-io.c @@ -786,7 +786,6 @@ void do_ide_request(struct request_queue *q) ide_hwif_t *hwif; struct request *rq; ide_startstop_t startstop; - int loops = 0; /* caller must own hwgroup->lock */ BUG_ON(!irqs_disabled()); @@ -844,7 +843,7 @@ void do_ide_request(struct request_queue *q) if (drive != orig_drive) goto plug_device; -again: + hwif = drive->hwif; if (hwif != hwgroup->hwif) { @@ -882,16 +881,10 @@ again: * though. I hope that doesn't happen too much, hopefully not * unless the subdriver triggers such a thing in its own PM * state machine. - * - * We count how many times we loop here to make sure we service - * all drives in the hwgroup without looping for ever */ if ((drive->dev_flags & IDE_DFLAG_BLOCKED) && blk_pm_request(rq) == 0 && (rq->cmd_flags & REQ_PREEMPT) == 0) { - drive = drive->next ? drive->next : hwgroup->drive; - if (loops++ < 4 && !blk_queue_plugged(drive->queue)) - goto again; /* We clear busy, there should be no pending ATA command at this point. */ hwgroup->busy = 0; goto plug_device; -- 2.20.1