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authorTejun Heo <tj@kernel.org>2011-01-26 12:12:50 +0100
committerTejun Heo <tj@kernel.org>2011-01-26 12:12:50 +0100
commitc48730056f69db30c075236f4ee2bc9d3f4f9985 (patch)
treebfab5ff0e416b9b17948f18024d2519be7453b55
parentworkqueue: use WQ_MEM_RECLAIM instead of WQ_RESCUER (diff)
downloadlinux-c48730056f69db30c075236f4ee2bc9d3f4f9985.tar.xz
linux-c48730056f69db30c075236f4ee2bc9d3f4f9985.zip
arm/omap: use system_wq in mailbox
With cmwq, there's no reason to use a separate workqueue for mailbox. Use the system_wq instead. mbox->rxq->work is sync flushed in omap_mbox_fini() to make sure it's not running on any cpu, which makes sure that no mbox work is running when omap_mbox_exit() is entered. Signed-off-by: Tejun Heo <tj@kernel.org> Acked-by: Hari Kanigeri <hari.kanigeri@gmail.com> Cc: Tony Lindgren <tony@atomide.com> Cc: linux-omap@vger.kernel.org
-rw-r--r--arch/arm/plat-omap/mailbox.c10
1 files changed, 2 insertions, 8 deletions
diff --git a/arch/arm/plat-omap/mailbox.c b/arch/arm/plat-omap/mailbox.c
index 459b319a9fad..4c9d44c4db48 100644
--- a/arch/arm/plat-omap/mailbox.c
+++ b/arch/arm/plat-omap/mailbox.c
@@ -32,7 +32,6 @@
#include <plat/mailbox.h>
-static struct workqueue_struct *mboxd;
static struct omap_mbox **mboxes;
static int mbox_configured;
@@ -197,7 +196,7 @@ static void __mbox_rx_interrupt(struct omap_mbox *mbox)
/* no more messages in the fifo. clear IRQ source. */
ack_mbox_irq(mbox, IRQ_RX);
nomem:
- queue_work(mboxd, &mbox->rxq->work);
+ schedule_work(&mbox->rxq->work);
}
static irqreturn_t mbox_interrupt(int irq, void *p)
@@ -307,7 +306,7 @@ static void omap_mbox_fini(struct omap_mbox *mbox)
if (!--mbox->use_count) {
free_irq(mbox->irq, mbox);
tasklet_kill(&mbox->txq->tasklet);
- flush_work(&mbox->rxq->work);
+ flush_work_sync(&mbox->rxq->work);
mbox_queue_free(mbox->txq);
mbox_queue_free(mbox->rxq);
}
@@ -406,10 +405,6 @@ static int __init omap_mbox_init(void)
if (err)
return err;
- mboxd = create_workqueue("mboxd");
- if (!mboxd)
- return -ENOMEM;
-
/* kfifo size sanity check: alignment and minimal size */
mbox_kfifo_size = ALIGN(mbox_kfifo_size, sizeof(mbox_msg_t));
mbox_kfifo_size = max_t(unsigned int, mbox_kfifo_size,
@@ -421,7 +416,6 @@ subsys_initcall(omap_mbox_init);
static void __exit omap_mbox_exit(void)
{
- destroy_workqueue(mboxd);
class_unregister(&omap_mbox_class);
}
module_exit(omap_mbox_exit);