Commit db5793c5 authored by Jisheng Zhang's avatar Jisheng Zhang Committed by Peter Zijlstra
Browse files

watchdog: Remove soft_lockup_hrtimer_cnt and related code 



After commit 9cf57731 ("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: default avatarJisheng Zhang <Jisheng.Zhang@synaptics.com>
Signed-off-by: default avatarPeter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20191218131720.4146aea2@xhacker.debian
parent 804d402f

kernel/watchdog.c

+0 −3
Original line number Diff line number Diff line
@@ -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));

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