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authorPeter Zijlstra <peterz@infradead.org>2019-11-08 14:15:59 +0100
committerIngo Molnar <mingo@kernel.org>2019-11-11 08:35:20 +0100
commit2eeb01a28c9233333bf229a5b4b0559f4bd22b52 (patch)
tree8fb28519a2281d9e75d3131e02d165ea4f2e7eb6 /kernel/sched
parent98c2f700edb413e4baa4a0368c5861d96211a775 (diff)
sched/fair: Use mul_u32_u32()
While reading the code I encountered another site where we should be using mul_u32_u32() because GCC just won't take a hint. Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: bsegall@google.com Cc: dietmar.eggemann@arm.com Cc: juri.lelli@redhat.com Cc: ktkhai@virtuozzo.com Cc: mgorman@suse.de Cc: qais.yousef@arm.com Cc: qperret@google.com Cc: rostedt@goodmis.org Cc: valentin.schneider@arm.com Cc: vincent.guittot@linaro.org Link: https://lkml.kernel.org/r/20191108131909.717931380@infradead.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'kernel/sched')
-rw-r--r--kernel/sched/fair.c3
1 files changed, 1 insertions, 2 deletions
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index 1789193d9917..ba97d1a1b976 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -229,8 +229,7 @@ static u64 __calc_delta(u64 delta_exec, unsigned long weight, struct load_weight
}
}
- /* hint to use a 32x32->64 mul */
- fact = (u64)(u32)fact * lw->inv_weight;
+ fact = mul_u32_u32(fact, lw->inv_weight);
while (fact >> 32) {
fact >>= 1;