linux-kernel - [PATCH] x86:hpet.c: Changed delayed

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Message-Id: <1273936545-10963-1-git-send-email-leonardoaltt@gmail.com>
Date:	Sat, 15 May 2010 12:15:45 -0300
From:	Leonardo de Sá Alt <leonardoaltt@...il.com>
To:	venkatesh.pallipadi@...el.com
Cc:	linux-kernel@...r.kernel.org,
	Leonardo de Sá Alt <leonardoaltt@...il.com>
Subject: [PATCH] x86:hpet.c: Changed delayed_work to work when delay is 0

Here a delayed_work was used with delay 0, so it was changed to work.
It avoids a timer set up and the work is directly queued, providing
less use of memory and more performance.

Signed-off-by: Leonardo de Sá Alt <leonardoaltt@...il.com>

---
 arch/x86/kernel/hpet.c |    6 ++----
 1 files changed, 2 insertions(+), 4 deletions(-)

diff --git a/arch/x86/kernel/hpet.c b/arch/x86/kernel/hpet.c
index a198b7c..4516ba1 100644
--- a/arch/x86/kernel/hpet.c
+++ b/arch/x86/kernel/hpet.c
@@ -724,12 +724,10 @@ static int hpet_cpuhp_notify(struct notifier_block *n,
 
 	switch (action & 0xf) {
 	case CPU_ONLINE:
-		INIT_DELAYED_WORK_ON_STACK(&work.work, hpet_work);
+		INIT_WORK_ON_STACK(&work.work.work, hpet_work);
 		init_completion(&work.complete);
-		/* FIXME: add schedule_work_on() */
-		schedule_delayed_work_on(cpu, &work.work, 0);
+		schedule_work_on(cpu, &work.work.work);
 		wait_for_completion(&work.complete);
-		destroy_timer_on_stack(&work.work.timer);
 		break;
 	case CPU_DEAD:
 		if (hdev) {
-- 
1.6.0.4

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