block: convert to dequeueing model (easy ones)
plat-omap/mailbox, floppy, viocd, mspro_block, i2o_block and
mmc/card/queue are already pretty close to dequeueing model and can be
converted with simple changes. Convert them.
While at it,
* xen-blkfront: !fs check moved downwards to share dequeue call with
normal path.
* mspro_block: __blk_end_request(..., blk_rq_cur_byte()) converted to
__blk_end_request_cur()
* mmc/card/queue: loop of __blk_end_request() converted to
__blk_end_request_all()
[ Impact: dequeue in-flight request ]
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Jeremy Fitzhardinge <jeremy@xensource.com>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Alex Dubov <oakad@yahoo.com>
Cc: Markus Lidel <Markus.Lidel@shadowconnect.com>
Cc: Pierre Ossman <drzeus@drzeus.cx>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
diff --git a/arch/arm/plat-omap/mailbox.c b/arch/arm/plat-omap/mailbox.c
index 538ba75..7a1f5c2 100644
--- a/arch/arm/plat-omap/mailbox.c
+++ b/arch/arm/plat-omap/mailbox.c
@@ -198,6 +198,8 @@
spin_lock(q->queue_lock);
rq = elv_next_request(q);
+ if (rq)
+ blkdev_dequeue_request(rq);
spin_unlock(q->queue_lock);
if (!rq)
@@ -208,6 +210,9 @@
ret = __mbox_msg_send(mbox, tx_data->msg, tx_data->arg);
if (ret) {
enable_mbox_irq(mbox, IRQ_TX);
+ spin_lock(q->queue_lock);
+ blk_requeue_request(q, rq);
+ spin_unlock(q->queue_lock);
return;
}
@@ -238,6 +243,8 @@
while (1) {
spin_lock_irqsave(q->queue_lock, flags);
rq = elv_next_request(q);
+ if (rq)
+ blkdev_dequeue_request(rq);
spin_unlock_irqrestore(q->queue_lock, flags);
if (!rq)
break;
@@ -345,6 +352,8 @@
while (1) {
spin_lock_irqsave(q->queue_lock, flags);
rq = elv_next_request(q);
+ if (rq)
+ blkdev_dequeue_request(rq);
spin_unlock_irqrestore(q->queue_lock, flags);
if (!rq)