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authorFrederic Weisbecker <fweisbec@gmail.com>2012-11-07 21:03:07 +0100
committerFrederic Weisbecker <fweisbec@gmail.com>2012-11-17 19:30:39 +0100
commit00b42959106a9ca1c2899e591ae4e9a83ad6af05 (patch)
tree7dd755a813fe7a7fe635082fc5010eb73725f2fe /kernel/time
parent33a5f6261a61af28f7b4c86f9f958da0f206c914 (diff)
downloadop-kernel-dev-00b42959106a9ca1c2899e591ae4e9a83ad6af05.zip
op-kernel-dev-00b42959106a9ca1c2899e591ae4e9a83ad6af05.tar.gz
irq_work: Don't stop the tick with pending works
Don't stop the tick if we have pending irq works on the queue, otherwise if the arch can't raise self-IPIs, we may not find an opportunity to execute the pending works for a while. Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com> Acked-by: Steven Rostedt <rostedt@goodmis.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@kernel.org> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Paul Gortmaker <paul.gortmaker@windriver.com>
Diffstat (limited to 'kernel/time')
-rw-r--r--kernel/time/tick-sched.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/kernel/time/tick-sched.c b/kernel/time/tick-sched.c
index 9e945aa..f249e8c 100644
--- a/kernel/time/tick-sched.c
+++ b/kernel/time/tick-sched.c
@@ -20,6 +20,7 @@
#include <linux/profile.h>
#include <linux/sched.h>
#include <linux/module.h>
+#include <linux/irq_work.h>
#include <asm/irq_regs.h>
@@ -289,7 +290,7 @@ static ktime_t tick_nohz_stop_sched_tick(struct tick_sched *ts,
} while (read_seqretry(&xtime_lock, seq));
if (rcu_needs_cpu(cpu, &rcu_delta_jiffies) || printk_needs_cpu(cpu) ||
- arch_needs_cpu(cpu)) {
+ arch_needs_cpu(cpu) || irq_work_needs_cpu()) {
next_jiffies = last_jiffies + 1;
delta_jiffies = 1;
} else {
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