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| author | Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> | 2008-07-15 21:21:43 +0200 |
|---|---|---|
| committer | Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> | 2008-07-15 21:21:43 +0200 |
| commit | 9a2d43b7566caeeeb414aa628bc2759028897dbb (patch) | |
| tree | 829829bb1649b9727f600d076d55e349fd589511 /block | |
| parent | 64ea1b4ab7f51c5de601d291a51508c27d445f70 (diff) | |
| download | linux-9a2d43b7566caeeeb414aa628bc2759028897dbb.tar.gz linux-9a2d43b7566caeeeb414aa628bc2759028897dbb.tar.bz2 linux-9a2d43b7566caeeeb414aa628bc2759028897dbb.zip | |
block: handle blk_pm_resume_request() requests in blk_execute_rq_nowait()
For blk_pm_resume_request() requests (which are used only by IDE subsystem
currently) 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 'block')
| -rw-r--r-- | block/blk-exec.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/block/blk-exec.c b/block/blk-exec.c index 391dd6224890..4f52f2792059 100644 --- a/block/blk-exec.c +++ b/block/blk-exec.c @@ -58,6 +58,9 @@ void blk_execute_rq_nowait(struct request_queue *q, struct gendisk *bd_disk, spin_lock_irq(q->queue_lock); __elv_add_request(q, rq, where, 1); __generic_unplug_device(q); + /* the queue is stopped so it won't be plugged+unplugged */ + if (blk_pm_resume_request(rq)) + q->request_fn(q); spin_unlock_irq(q->queue_lock); } EXPORT_SYMBOL_GPL(blk_execute_rq_nowait); |