From: Jisheng Zhang <Jisheng.Zhang@synaptics.com>
To: Thomas Gleixner <tglx@linutronix.de>,
"Peter Zijlstra (Intel)" <peterz@infradead.org>
Cc: "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: [PATCH] watchdog: Remove soft_lockup_hrtimer_cnt and related code
Date: Wed, 20 Nov 2019 06:38:47 +0000 [thread overview]
Message-ID: <20191120142522.0e82c985@xhacker.debian> (raw)
After commit 9cf57731b63e ("watchdog/softlockup: Replace "watchdog/%u"
threads with cpu_stop_work"), the percpu soft_lockup_hrtimer_cnt is
not used any more, so remove it and related code.
Signed-off-by: Jisheng Zhang <Jisheng.Zhang@synaptics.com>
---
kernel/watchdog.c | 3 ---
1 file changed, 3 deletions(-)
diff --git a/kernel/watchdog.c b/kernel/watchdog.c
index f41334ef0971..0621301ae8cf 100644
--- a/kernel/watchdog.c
+++ b/kernel/watchdog.c
@@ -173,7 +173,6 @@ static DEFINE_PER_CPU(struct hrtimer, watchdog_hrtimer);
static DEFINE_PER_CPU(bool, softlockup_touch_sync);
static DEFINE_PER_CPU(bool, soft_watchdog_warn);
static DEFINE_PER_CPU(unsigned long, hrtimer_interrupts);
-static DEFINE_PER_CPU(unsigned long, soft_lockup_hrtimer_cnt);
static DEFINE_PER_CPU(struct task_struct *, softlockup_task_ptr_saved);
static DEFINE_PER_CPU(unsigned long, hrtimer_interrupts_saved);
static unsigned long soft_lockup_nmi_warn;
@@ -350,8 +349,6 @@ static DEFINE_PER_CPU(struct cpu_stop_work, softlockup_stop_work);
*/
static int softlockup_fn(void *data)
{
- __this_cpu_write(soft_lockup_hrtimer_cnt,
- __this_cpu_read(hrtimer_interrupts));
__touch_watchdog();
complete(this_cpu_ptr(&softlockup_completion));
--
2.24.0
reply other threads:[~2019-11-20 6:38 UTC|newest]
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