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| author | Jeff Garzik <jgarzik@pobox.com> | 2005-10-11 01:48:37 -0400 |
|---|---|---|
| committer | Jeff Garzik <jgarzik@pobox.com> | 2005-10-11 01:48:37 -0400 |
| commit | 1a04392bd6439876b1552793389cbb5be356ea54 (patch) | |
| tree | 12af7b77e3b0848127f2d2871778c9c1f315578a /drivers/ide/ide-io.c | |
| parent | 68399bb5080c1d96f2110b0a040b39d3ccd7a18a (diff) | |
| parent | 3c92c2ba33cd7d666c5f83cc32aa590e794e91b0 (diff) | |
| download | kernel_samsung_espresso10-1a04392bd6439876b1552793389cbb5be356ea54.zip kernel_samsung_espresso10-1a04392bd6439876b1552793389cbb5be356ea54.tar.gz kernel_samsung_espresso10-1a04392bd6439876b1552793389cbb5be356ea54.tar.bz2 | |
Merge branch 'master'
Diffstat (limited to 'drivers/ide/ide-io.c')
| -rw-r--r-- | drivers/ide/ide-io.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/ide/ide-io.c b/drivers/ide/ide-io.c index 9e9cf14..5275cbb 100644 --- a/drivers/ide/ide-io.c +++ b/drivers/ide/ide-io.c @@ -1101,6 +1101,7 @@ static void ide_do_request (ide_hwgroup_t *hwgroup, int masked_irq) ide_hwif_t *hwif; struct request *rq; ide_startstop_t startstop; + int loops = 0; /* for atari only: POSSIBLY BROKEN HERE(?) */ ide_get_lock(ide_intr, hwgroup); @@ -1153,6 +1154,7 @@ static void ide_do_request (ide_hwgroup_t *hwgroup, int masked_irq) /* no more work for this hwgroup (for now) */ return; } + again: hwif = HWIF(drive); if (hwgroup->hwif->sharing_irq && hwif != hwgroup->hwif && @@ -1192,8 +1194,14 @@ static void ide_do_request (ide_hwgroup_t *hwgroup, int masked_irq) * 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->blocked && !blk_pm_request(rq) && !(rq->flags & REQ_PREEMPT)) { + 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; break; |