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From: Janghyuck Kim <janghyuck.kim@samsung.com>
To: unlisted-recipients:; (no To-header on input)
Cc: janghyuck.kim@samsung.com,
	Catalin Marinas <catalin.marinas@arm.com>,
	Will Deacon <will@kernel.org>,
	Andrew Morton <akpm@linux-foundation.org>,
	Palmer Dabbelt <palmerdabbelt@google.com>,
	Atish Patra <atish.patra@wdc.com>,
	Jonathan Cameron <Jonathan.Cameron@huawei.com>,
	Zhengyuan Liu <liuzhengyuan@tj.kylinos.cn>,
	linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org, linux-mm@kvack.org
Subject: [PATCH 2/2] arm64: numa: support numa_off_fastpath
Date: Wed, 16 Jun 2021 17:37:42 +0900	[thread overview]
Message-ID: <20210616083745.14288-2-janghyuck.kim@samsung.com> (raw)
In-Reply-To: <20210616083745.14288-1-janghyuck.kim@samsung.com>

NUMA can be disabled forcefully by command line, or no configurations
are provided. numa_off_fastpath can become true in this case to skip the
memory policy related process to reduce overhead.

Signed-off-by: Janghyuck Kim <janghyuck.kim@samsung.com>
---
 arch/arm64/include/asm/numa.h | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/arch/arm64/include/asm/numa.h b/arch/arm64/include/asm/numa.h
index 8c8cf4297cc3..f7d4e0cb801b 100644
--- a/arch/arm64/include/asm/numa.h
+++ b/arch/arm64/include/asm/numa.h
@@ -5,4 +5,8 @@
 #include <asm/topology.h>
 #include <asm-generic/numa.h>
 
+#ifdef CONFIG_NUMA
+#define numa_off_fastpath()	numa_off
+#endif	/* CONFIG_NUMA */
+
 #endif	/* __ASM_NUMA_H */
-- 
2.28.0


WARNING: multiple messages have this Message-ID (diff)
From: Janghyuck Kim <janghyuck.kim@samsung.com>
Cc: janghyuck.kim@samsung.com,
	Catalin Marinas <catalin.marinas@arm.com>,
	Will Deacon <will@kernel.org>,
	Andrew Morton <akpm@linux-foundation.org>,
	Palmer Dabbelt <palmerdabbelt@google.com>,
	Atish Patra <atish.patra@wdc.com>,
	Jonathan Cameron <Jonathan.Cameron@huawei.com>,
	Zhengyuan Liu <liuzhengyuan@tj.kylinos.cn>,
	linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org, linux-mm@kvack.org
Subject: [PATCH 2/2] arm64: numa: support numa_off_fastpath
Date: Wed, 16 Jun 2021 17:37:42 +0900	[thread overview]
Message-ID: <20210616083745.14288-2-janghyuck.kim@samsung.com> (raw)
In-Reply-To: <20210616083745.14288-1-janghyuck.kim@samsung.com>

NUMA can be disabled forcefully by command line, or no configurations
are provided. numa_off_fastpath can become true in this case to skip the
memory policy related process to reduce overhead.

Signed-off-by: Janghyuck Kim <janghyuck.kim@samsung.com>
---
 arch/arm64/include/asm/numa.h | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/arch/arm64/include/asm/numa.h b/arch/arm64/include/asm/numa.h
index 8c8cf4297cc3..f7d4e0cb801b 100644
--- a/arch/arm64/include/asm/numa.h
+++ b/arch/arm64/include/asm/numa.h
@@ -5,4 +5,8 @@
 #include <asm/topology.h>
 #include <asm-generic/numa.h>
 
+#ifdef CONFIG_NUMA
+#define numa_off_fastpath()	numa_off
+#endif	/* CONFIG_NUMA */
+
 #endif	/* __ASM_NUMA_H */
-- 
2.28.0



WARNING: multiple messages have this Message-ID (diff)
From: Janghyuck Kim <janghyuck.kim@samsung.com>
Cc: janghyuck.kim@samsung.com,
	Catalin Marinas <catalin.marinas@arm.com>,
	Will Deacon <will@kernel.org>,
	Andrew Morton <akpm@linux-foundation.org>,
	Palmer Dabbelt <palmerdabbelt@google.com>,
	Atish Patra <atish.patra@wdc.com>,
	Jonathan Cameron <Jonathan.Cameron@huawei.com>,
	Zhengyuan Liu <liuzhengyuan@tj.kylinos.cn>,
	linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org, linux-mm@kvack.org
Subject: [PATCH 2/2] arm64: numa: support numa_off_fastpath
Date: Wed, 16 Jun 2021 17:37:42 +0900	[thread overview]
Message-ID: <20210616083745.14288-2-janghyuck.kim@samsung.com> (raw)
In-Reply-To: <20210616083745.14288-1-janghyuck.kim@samsung.com>

NUMA can be disabled forcefully by command line, or no configurations
are provided. numa_off_fastpath can become true in this case to skip the
memory policy related process to reduce overhead.

Signed-off-by: Janghyuck Kim <janghyuck.kim@samsung.com>
---
 arch/arm64/include/asm/numa.h | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/arch/arm64/include/asm/numa.h b/arch/arm64/include/asm/numa.h
index 8c8cf4297cc3..f7d4e0cb801b 100644
--- a/arch/arm64/include/asm/numa.h
+++ b/arch/arm64/include/asm/numa.h
@@ -5,4 +5,8 @@
 #include <asm/topology.h>
 #include <asm-generic/numa.h>
 
+#ifdef CONFIG_NUMA
+#define numa_off_fastpath()	numa_off
+#endif	/* CONFIG_NUMA */
+
 #endif	/* __ASM_NUMA_H */
-- 
2.28.0


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linux-arm-kernel mailing list
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http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

  parent reply	other threads:[~2021-06-16  8:16 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <CGME20210616081628epcas2p3f919d10029cbe01efa1212a5b861af38@epcas2p3.samsung.com>
2021-06-16  8:37 ` [PATCH 1/2] mm: support fastpath if NUMA is enabled with numa off Janghyuck Kim
2021-06-16  8:37   ` Janghyuck Kim
2021-06-16  8:37   ` Janghyuck Kim
     [not found]   ` <CGME20210616081632epcas2p46436c362f3d97c9c1fb09dbb11d64ad7@epcas2p4.samsung.com>
2021-06-16  8:37     ` Janghyuck Kim [this message]
2021-06-16  8:37       ` [PATCH 2/2] arm64: numa: support numa_off_fastpath Janghyuck Kim
2021-06-16  8:37       ` Janghyuck Kim
2021-06-16 17:10   ` [PATCH 1/2] mm: support fastpath if NUMA is enabled with numa off Vlastimil Babka
2021-06-16 17:10     ` Vlastimil Babka
2021-06-17 11:42     ` Janghyuck Kim
2021-06-17 11:42       ` Janghyuck Kim
2021-06-16 17:32   ` Matthew Wilcox
2021-06-16 17:32     ` Matthew Wilcox
2021-06-17 11:55     ` Janghyuck Kim
2021-06-17 11:55       ` Janghyuck Kim
2021-06-17 12:40       ` Matthew Wilcox
2021-06-17 12:40         ` Matthew Wilcox

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