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authorJiri Kosina <jkosina@suse.cz>2011-04-26 12:22:15 +0400
committerJiri Kosina <jkosina@suse.cz>2011-04-26 12:22:59 +0400
commit07f9479a40cc778bc1462ada11f95b01360ae4ff (patch)
tree0676cf38df3844004bb3ebfd99dfa67a4a8998f5 /arch/blackfin/kernel/time-ts.c
parent9d5e6bdb3013acfb311ab407eeca0b6a6a3dedbf (diff)
parentcd2e49e90f1cae7726c9a2c54488d881d7f1cd1c (diff)
downloadlinux-07f9479a40cc778bc1462ada11f95b01360ae4ff.tar.xz
Merge branch 'master' into for-next
Fast-forwarded to current state of Linus' tree as there are patches to be applied for files that didn't exist on the old branch.
Diffstat (limited to 'arch/blackfin/kernel/time-ts.c')
-rw-r--r--arch/blackfin/kernel/time-ts.c8
1 files changed, 7 insertions, 1 deletions
diff --git a/arch/blackfin/kernel/time-ts.c b/arch/blackfin/kernel/time-ts.c
index 8c9a43daf80f..cdb4beb6bc8f 100644
--- a/arch/blackfin/kernel/time-ts.c
+++ b/arch/blackfin/kernel/time-ts.c
@@ -206,8 +206,14 @@ irqreturn_t bfin_gptmr0_interrupt(int irq, void *dev_id)
{
struct clock_event_device *evt = dev_id;
smp_mb();
- evt->event_handler(evt);
+ /*
+ * We want to ACK before we handle so that we can handle smaller timer
+ * intervals. This way if the timer expires again while we're handling
+ * things, we're more likely to see that 2nd int rather than swallowing
+ * it by ACKing the int at the end of this handler.
+ */
bfin_gptmr0_ack();
+ evt->event_handler(evt);
return IRQ_HANDLED;
}