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Wed, 04 Dec 2024 03:11:42 -0800 (PST) From: Qi Zheng To: david@redhat.com, jannh@google.com, hughd@google.com, willy@infradead.org, muchun.song@linux.dev, vbabka@kernel.org, peterx@redhat.com, akpm@linux-foundation.org Cc: mgorman@suse.de, catalin.marinas@arm.com, will@kernel.org, dave.hansen@linux.intel.com, luto@kernel.org, peterz@infradead.org, x86@kernel.org, lorenzo.stoakes@oracle.com, zokeefe@google.com, rientjes@google.com, linux-mm@kvack.org, linux-kernel@vger.kernel.org, Qi Zheng Subject: [PATCH v4 11/11] x86: select ARCH_SUPPORTS_PT_RECLAIM if X86_64 Date: Wed, 4 Dec 2024 19:09:51 +0800 Message-Id: <841c1f35478d5354872d307888979c9e20de9c09.1733305182.git.zhengqi.arch@bytedance.com> X-Mailer: git-send-email 2.24.3 (Apple Git-128) In-Reply-To: References: Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Now, x86 has fully supported the CONFIG_PT_RECLAIM feature, and reclaiming PTE pages is profitable only on 64-bit systems, so select ARCH_SUPPORTS_PT_RECLAIM if X86_64. Signed-off-by: Qi Zheng Cc: x86@kernel.org Cc: Dave Hansen Cc: Andy Lutomirski Cc: Peter Zijlstra --- arch/x86/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index 65f8478fe7a96..77f001c6a5679 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -324,6 +324,7 @@ config X86 select FUNCTION_ALIGNMENT_4B imply IMA_SECURE_AND_OR_TRUSTED_BOOT if EFI select HAVE_DYNAMIC_FTRACE_NO_PATCHABLE + select ARCH_SUPPORTS_PT_RECLAIM if X86_64 =20 config INSTRUCTION_DECODER def_bool y --=20 2.20.1