From: Qi Zheng <zhengqi.arch@bytedance.com>
To: david@redhat.com, hughd@google.com, willy@infradead.org,
mgorman@suse.de, muchun.song@linux.dev, vbabka@kernel.org,
akpm@linux-foundation.org, zokeefe@google.com,
rientjes@google.com, jannh@google.com, peterx@redhat.com
Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org, x86@kernel.org,
Qi Zheng <zhengqi.arch@bytedance.com>
Subject: [PATCH v1 7/7] x86: select ARCH_SUPPORTS_PT_RECLAIM if X86_64
Date: Thu, 17 Oct 2024 17:47:26 +0800 [thread overview]
Message-ID: <0f6e7fb7fb21431710f28df60738f8be98fe9dd9.1729157502.git.zhengqi.arch@bytedance.com> (raw)
In-Reply-To: <cover.1729157502.git.zhengqi.arch@bytedance.com>
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 <zhengqi.arch@bytedance.com>
---
arch/x86/Kconfig | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 1ea18662942c9..69a20cb9ddd81 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -319,6 +319,7 @@ 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
config INSTRUCTION_DECODER
def_bool y
--
2.20.1
next prev parent reply other threads:[~2024-10-17 9:48 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-10-17 9:47 [PATCH v1 0/7] synchronously scan and reclaim empty user PTE pages Qi Zheng
2024-10-17 9:47 ` [PATCH v1 1/7] mm: khugepaged: retract_page_tables() use pte_offset_map_lock() Qi Zheng
2024-10-17 18:00 ` Jann Horn
2024-10-18 2:15 ` Qi Zheng
2024-10-17 9:47 ` [PATCH v1 2/7] mm: make zap_pte_range() handle full within-PMD range Qi Zheng
2024-10-17 18:06 ` Jann Horn
2024-10-18 2:23 ` Qi Zheng
2024-10-17 9:47 ` [PATCH v1 3/7] mm: zap_install_uffd_wp_if_needed: return whether uffd-wp pte has been re-installed Qi Zheng
2024-10-17 9:47 ` [PATCH v1 4/7] mm: zap_present_ptes: return whether the PTE page is unreclaimable Qi Zheng
2024-10-17 9:47 ` [PATCH v1 5/7] mm: pgtable: try to reclaim empty PTE page in madvise(MADV_DONTNEED) Qi Zheng
2024-10-17 18:43 ` Jann Horn
2024-10-18 2:53 ` Qi Zheng
2024-10-18 2:58 ` Qi Zheng
2024-10-24 13:21 ` Will Deacon
2024-10-25 2:43 ` Qi Zheng
2024-10-17 9:47 ` [PATCH v1 6/7] x86: mm: free page table pages by RCU instead of semi RCU Qi Zheng
2024-10-17 9:47 ` Qi Zheng [this message]
2024-10-23 6:54 ` [PATCH v1 7/7] x86: select ARCH_SUPPORTS_PT_RECLAIM if X86_64 kernel test robot
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