Commit 1d339638 authored Oct 15, 2020 by Miaohe Lin Committed by Linus Torvalds Oct 16, 2020

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



Use helper macro abs() to simplify the "x >= t || x <= -t" cmp.

Signed-off-by: Miaohe Lin <linmiaohe@huawei.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Link: https://lkml.kernel.org/r/20200927122746.5964-1-linmiaohe@huawei.com


Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

parent 6ed9b92e

lib/percpu_counter.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -85,7 +85,7 @@ void percpu_counter_add_batch(struct percpu_counter *fbc, s64 amount, s32 batch)

		preempt_disable();
		count = __this_cpu_read(*fbc->counters) + amount;
		if (count >= batch \|\| count <= -batch) {
		if (abs(count) >= batch) {
		unsigned long flags;
		raw_spin_lock_irqsave(&fbc->lock, flags);
		fbc->count += count;

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