From: <ye.xingchen@zte.com.cn>
To: <linux@armlinux.org.uk>
Cc: <linux-arm-kernel@lists.infradead.org>, <linux-kernel@vger.kernel.org>
Subject: [PATCH] ARM: mm: use bitmap_zero() API
Date: Sat, 6 May 2023 16:35:22 +0800 (CST) [thread overview]
Message-ID: <202305061635221161194@zte.com.cn> (raw)
From: Ye Xingchen <ye.xingchen@zte.com.cn>
bitmap_zero() is faster than bitmap_clear(), so use bitmap_zero()
instead of bitmap_clear().
Signed-off-by: Ye Xingchen <ye.xingchen@zte.com.cn>
---
arch/arm/mm/context.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/arm/mm/context.c b/arch/arm/mm/context.c
index 4204ffa2d104..2e95a707eb93 100644
--- a/arch/arm/mm/context.c
+++ b/arch/arm/mm/context.c
@@ -139,7 +139,7 @@ static void flush_context(unsigned int cpu)
u64 asid;
/* Update the list of reserved ASIDs and the ASID bitmap. */
- bitmap_clear(asid_map, 0, NUM_USER_ASIDS);
+ bitmap_zero(asid_map, NUM_USER_ASIDS);
for_each_possible_cpu(i) {
asid = atomic64_xchg(&per_cpu(active_asids, i), 0);
/*
--
2.25.1
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next reply other threads:[~2023-05-06 8:36 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-05-06 8:35 ye.xingchen [this message]
2023-05-06 10:35 ` [PATCH] ARM: mm: use bitmap_zero() API Russell King (Oracle)
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