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authorTejun Heo <tj@kernel.org>2009-05-08 11:54:15 +0900
committerJens Axboe <jens.axboe@oracle.com>2009-05-11 09:52:17 +0200
commit296b2f6ae654581adc27f0d6f0af454c7f3d06ee (patch)
tree8fab2b91741336d41e559a839b547d7ac3090524 /arch
parentfb3ac7f6b811eac8e0aafa3df1c16ed872e898a8 (diff)
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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>
Diffstat (limited to 'arch')
-rw-r--r--arch/arm/plat-omap/mailbox.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/arch/arm/plat-omap/mailbox.c b/arch/arm/plat-omap/mailbox.c
index 538ba7541d3f..7a1f5c25fd17 100644
--- a/arch/arm/plat-omap/mailbox.c
+++ b/arch/arm/plat-omap/mailbox.c
@@ -198,6 +198,8 @@ static void mbox_tx_work(struct work_struct *work)
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 @@ static void mbox_tx_work(struct work_struct *work)
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 @@ static void mbox_rx_work(struct work_struct *work)
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 @@ omap_mbox_read(struct device *dev, struct device_attribute *attr, char *buf)
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)