Commit 1d339638 authored by Miaohe Lin's avatar Miaohe Lin Committed by Linus Torvalds

lib/percpu_counter.c: use helper macro abs()

Use helper macro abs() to simplify the "x >= t || x <= -t" cmp.
Signed-off-by: default avatarMiaohe Lin <linmiaohe@huawei.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Reviewed-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Link: https://lkml.kernel.org/r/20200927122746.5964-1-linmiaohe@huawei.comSigned-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 6ed9b92e
...@@ -85,7 +85,7 @@ void percpu_counter_add_batch(struct percpu_counter *fbc, s64 amount, s32 batch) ...@@ -85,7 +85,7 @@ void percpu_counter_add_batch(struct percpu_counter *fbc, s64 amount, s32 batch)
preempt_disable(); preempt_disable();
count = __this_cpu_read(*fbc->counters) + amount; count = __this_cpu_read(*fbc->counters) + amount;
if (count >= batch || count <= -batch) { if (abs(count) >= batch) {
unsigned long flags; unsigned long flags;
raw_spin_lock_irqsave(&fbc->lock, flags); raw_spin_lock_irqsave(&fbc->lock, flags);
fbc->count += count; fbc->count += count;
......
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