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 <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Reviewed-by: Andrew Morton <[email protected]> Link: https://lkml.kernel.org/r/[email protected] Signed-off-by: Linus Torvalds <[email protected]>
blueseahlan · Oct 16, 2020 · 1d33963 · 1d33963
1 parent 6ed9b92
commit 1d33963
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/lib/percpu_counter.c b/lib/percpu_counter.c
@@ -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;