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Message-Id: <1401659298-18067-1-git-send-email-rickard_strandqvist@spectrumdigital.se> Date: Sun, 1 Jun 2014 23:48:18 +0200 From: Rickard Strandqvist <rickard_strandqvist@...ctrumdigital.se> To: "David S. Miller" <davem@...emloft.net>, Kirill Tkhai <tkhai@...dex.ru> Cc: Rickard Strandqvist <rickard_strandqvist@...ctrumdigital.se>, Paul Gortmaker <paul.gortmaker@...driver.com>, Peter Zijlstra <peterz@...radead.org>, Bjorn Helgaas <bhelgaas@...gle.com>, sparclinux@...r.kernel.org, linux-kernel@...r.kernel.org Subject: [PATCH] arch: sparc: kernel: smp_64.c: Optimization of the Code >From what I know, AND is faster then modulo. Not sure if this is worth changing though. Signed-off-by: Rickard Strandqvist <rickard_strandqvist@...ctrumdigital.se> --- arch/sparc/kernel/smp_64.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/sparc/kernel/smp_64.c b/arch/sparc/kernel/smp_64.c index 745a363..921d924 100644 --- a/arch/sparc/kernel/smp_64.c +++ b/arch/sparc/kernel/smp_64.c @@ -179,7 +179,7 @@ static inline long get_delta (long *rt, long *master) /* average best_t0 and best_t1 without overflow: */ tcenter = (best_t0/2 + best_t1/2); - if (best_t0 % 2 + best_t1 % 2 == 2) + if ((best_t0 & 1) + (best_t1 & 1) == 2) tcenter++; return tcenter - best_tm; } -- 1.7.10.4 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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