From: <ye.xingchen@zte.com.cn>
To: <broonie@kernel.org>
Cc: <catalin.marinas@arm.com>, <will@kernel.org>,
<kristina.martsenko@arm.com>,
<linux-arm-kernel@lists.infradead.org>,
<linux-kernel@vger.kernel.org>
Subject: [PATCH] arm64: mm: use bitmap_zero() API
Date: Sat, 6 May 2023 16:36:31 +0800 (CST) [thread overview]
Message-ID: <202305061636313011243@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/arm64/mm/context.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/arm64/mm/context.c b/arch/arm64/mm/context.c
index e1e0dca01839..ed0bf7f8e8ce 100644
--- a/arch/arm64/mm/context.c
+++ b/arch/arm64/mm/context.c
@@ -95,7 +95,7 @@ static void set_reserved_asid_bits(void)
else if (arm64_kernel_unmapped_at_el0())
set_kpti_asid_bits(asid_map);
else
- bitmap_clear(asid_map, 0, NUM_USER_ASIDS);
+ bitmap_zero(asid_map, NUM_USER_ASIDS);
}
#define asid_gen_match(asid) \
--
2.25.1
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 8:36 ye.xingchen [this message]
2023-05-16 13:24 ` [PATCH] arm64: mm: use bitmap_zero() API Will Deacon
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