linux-kernel - [PATCH 2/2] arm64: numa: support numa_off

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20210616083745.14288-2-janghyuck.kim@samsung.com>
Date:   Wed, 16 Jun 2021 17:37:42 +0900
From:   Janghyuck Kim <janghyuck.kim@...sung.com>
To:     unlisted-recipients:; (no To-header on input)
Cc:     janghyuck.kim@...sung.com,
        Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will@...nel.org>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Palmer Dabbelt <palmerdabbelt@...gle.com>,
        Atish Patra <atish.patra@....com>,
        Jonathan Cameron <Jonathan.Cameron@...wei.com>,
        Zhengyuan Liu <liuzhengyuan@...kylinos.cn>,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-mm@...ck.org
Subject: [PATCH 2/2] arm64: numa: support numa_off_fastpath

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@...sung.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