diff options
| author |   Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> | 2009-01-02 16:12:49 +0100 |
|---|---|---|
| committer | Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> | 2009-01-02 16:12:49 +0100 |
| commit | 2fb211502e2c0513e12d677ed4d7891f3c5e1413 (patch) | |
| tree | 3d10026bb2d4eac897e96b1ff9c8c5bd12173954 /drivers/ide | |
| parent | ide: don't execute the next queued command from the hard-IRQ context (v2) (diff) | |
| download | linux-dev-2fb211502e2c0513e12d677ed4d7891f3c5e1413.tar.xz linux-dev-2fb211502e2c0513e12d677ed4d7891f3c5e1413.zip | |
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 <bzolnier@gmail.com>
Diffstat (limited to 'drivers/ide')
| -rw-r--r-- | drivers/ide/ide-io.c | 9 |
1 files changed, 1 insertions, 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; |