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| author |   Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> | 2008-07-15 21:21:42 +0200 |
|---|---|---|
| committer | Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> | 2008-07-15 21:21:42 +0200 |
| commit | c6866a6ff571eebebda45bf14b5b62188768893a (patch) | |
| tree | ae95d40eb549f07a24dc67b3fc84cc941accefb9 /drivers/ide/ide-io.c | |
| parent | ide: set REQ_PREEMPT request flag in ide_do_drive_cmd() users (diff) | |
| download | linux-dev-c6866a6ff571eebebda45bf14b5b62188768893a.tar.xz linux-dev-c6866a6ff571eebebda45bf14b5b62188768893a.zip | |
ide: use __generic_unplug_device() in ide_do_drive_cmd() (take 2)
* Call __elv_add_request() with 'plug' == 1 (so the device will be
plugged) and then use __generic_unplug_device() instead of calling
ide_do_request() directly.
v2:
* For blk_pm_resume_request() requests the queue is stopped so we
need to call ->request_fn explicitly.
Thanks to:
- Rafael for reporting/bisecting the bug
- Borislav/Rafael for testing the fix
This is a preparation for converting IDE to use blk_execute_rq().
Cc: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Cc: Borislav Petkov <petkovbb@gmail.com>
Cc: Jens Axboe <jens.axboe@oracle.com>
Cc: "Rafael J. Wysocki" <rjw@sisk.pl>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Diffstat (limited to 'drivers/ide/ide-io.c')
| -rw-r--r-- | drivers/ide/ide-io.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/drivers/ide/ide-io.c b/drivers/ide/ide-io.c index 5aed79ed4586..1eb3f5cce556 100644 --- a/drivers/ide/ide-io.c +++ b/drivers/ide/ide-io.c @@ -1606,8 +1606,11 @@ int ide_do_drive_cmd (ide_drive_t *drive, struct request *rq, ide_action_t actio spin_lock_irqsave(&ide_lock, flags); if (action == ide_preempt) hwgroup->rq = NULL; - __elv_add_request(drive->queue, rq, where, 0); - ide_do_request(hwgroup, IDE_NO_IRQ); + __elv_add_request(drive->queue, rq, where, 1); + __generic_unplug_device(drive->queue); + /* the queue is stopped so it won't be plugged+unplugged */ + if (blk_pm_resume_request(rq)) + do_ide_request(drive->queue); spin_unlock_irqrestore(&ide_lock, flags); err = 0; |