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@xxxxxxxxxxxxx> Cc: Borislav Petkov <petkovbb@xxxxxxxxx> Cc: Jens Axboe <jens.axboe@xxxxxxxxxx> Cc: "Rafael J. Wysocki" <rjw@xxxxxxx> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@xxxxxxxxx> --- goes before "ide: convert ide_do_drive_cmd path to use blk_execute_rq" patch in IDE tree block/blk-exec.c | 3 +++ 1 file changed, 3 insertions(+) Index: b/block/blk-exec.c =================================================================== --- a/block/blk-exec.c +++ b/block/blk-exec.c @@ -58,6 +58,9 @@ void blk_execute_rq_nowait(struct reques 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); -- To unsubscribe from this list: send the line "unsubscribe linux-ide" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
