mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-08-26 10:49:33 +00:00
MIPS: smp: Remove tick_broadcast_count
Now smp_call_function_single_async() provides the protection that we'll return with -EBUSY if the csd object is still pending, then we don't need the tick_broadcast_count counter any more. Signed-off-by: Peter Xu <peterx@redhat.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Signed-off-by: Ingo Molnar <mingo@kernel.org> Link: https://lkml.kernel.org/r/20191216213125.9536-3-peterx@redhat.com
This commit is contained in:
parent
5a18ceca63
commit
e188f0a50f
1 changed files with 1 additions and 8 deletions
|
@ -696,29 +696,22 @@ EXPORT_SYMBOL(flush_tlb_one);
|
|||
|
||||
#ifdef CONFIG_GENERIC_CLOCKEVENTS_BROADCAST
|
||||
|
||||
static DEFINE_PER_CPU(atomic_t, tick_broadcast_count);
|
||||
static DEFINE_PER_CPU(call_single_data_t, tick_broadcast_csd);
|
||||
|
||||
void tick_broadcast(const struct cpumask *mask)
|
||||
{
|
||||
atomic_t *count;
|
||||
call_single_data_t *csd;
|
||||
int cpu;
|
||||
|
||||
for_each_cpu(cpu, mask) {
|
||||
count = &per_cpu(tick_broadcast_count, cpu);
|
||||
csd = &per_cpu(tick_broadcast_csd, cpu);
|
||||
|
||||
if (atomic_inc_return(count) == 1)
|
||||
smp_call_function_single_async(cpu, csd);
|
||||
smp_call_function_single_async(cpu, csd);
|
||||
}
|
||||
}
|
||||
|
||||
static void tick_broadcast_callee(void *info)
|
||||
{
|
||||
int cpu = smp_processor_id();
|
||||
tick_receive_broadcast();
|
||||
atomic_set(&per_cpu(tick_broadcast_count, cpu), 0);
|
||||
}
|
||||
|
||||
static int __init tick_broadcast_init(void)
|
||||
|
|
Loading…
Reference in a new issue