From 296b2f6ae654581adc27f0d6f0af454c7f3d06ee Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Fri, 8 May 2009 11:54:15 +0900 Subject: 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 Cc: Rusty Russell Cc: Jeremy Fitzhardinge Cc: Stephen Rothwell Cc: Alex Dubov Cc: Markus Lidel Cc: Pierre Ossman Signed-off-by: Jens Axboe --- arch/arm/plat-omap/mailbox.c | 9 +++++++++ 1 file changed, 9 insertions(+) (limited to 'arch/arm') 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) -- cgit v1.2.2