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authorMiaohe Lin <linmiaohe@huawei.com>2020-10-15 20:11:28 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2020-10-16 11:11:20 -0700
commit1d339638a954edce06ffcaa15d883d322e9e8291 (patch)
treef97127ed5e09d696a15951631f8752eaabee7cf2 /lib
parent6ed9b92e290b530197c2dda2271f5312abc475e6 (diff)
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>
Diffstat (limited to 'lib')
-rw-r--r--lib/percpu_counter.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/percpu_counter.c b/lib/percpu_counter.c
index f61689a96e85..00f666d94486 100644
--- 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;

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