From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id F00D5D2F000 for ; Tue, 27 Jan 2026 12:17:02 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 5B85E6B009F; Tue, 27 Jan 2026 07:17:02 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id 575CE6B00A0; Tue, 27 Jan 2026 07:17:02 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 485166B00A1; Tue, 27 Jan 2026 07:17:02 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0017.hostedemail.com [216.40.44.17]) by kanga.kvack.org (Postfix) with ESMTP id 36F756B009F for ; Tue, 27 Jan 2026 07:17:02 -0500 (EST) Received: from smtpin14.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay09.hostedemail.com (Postfix) with ESMTP id 605548CF1D for ; Tue, 27 Jan 2026 12:17:01 +0000 (UTC) X-FDA: 84377643042.14.F0D7657 Received: from out-181.mta1.migadu.com (out-181.mta1.migadu.com [95.215.58.181]) by imf18.hostedemail.com (Postfix) with ESMTP id 72A761C0013 for ; Tue, 27 Jan 2026 12:16:59 +0000 (UTC) Authentication-Results: imf18.hostedemail.com; dkim=pass header.d=linux.dev header.s=key1 header.b=jSGS7Oe7; spf=pass (imf18.hostedemail.com: domain of qi.zheng@linux.dev designates 95.215.58.181 as permitted sender) smtp.mailfrom=qi.zheng@linux.dev; dmarc=pass (policy=none) header.from=linux.dev ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1769516219; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references:dkim-signature; bh=cQBzLGwNWLhDwXoP+ZRSwxq1ZRzbrKmRMjKOPlq54sI=; b=TNzgyKXuAzNLrYTI4gnJbWPWNpD/o3LdgKTZbVIkw1NO1m2COveE/wQoVBdb/5E1nL/jl3 71KS4Tc2NbWOrXLP/GRlNG6iC7pLNaIBcB40SvqzcUf8PnyDJ42cTvO60lb0qjpdualbB2 5yIiQdLxv8tvds2u6gN2iEmk+qkUJro= ARC-Authentication-Results: i=1; imf18.hostedemail.com; dkim=pass header.d=linux.dev header.s=key1 header.b=jSGS7Oe7; spf=pass (imf18.hostedemail.com: domain of qi.zheng@linux.dev designates 95.215.58.181 as permitted sender) smtp.mailfrom=qi.zheng@linux.dev; dmarc=pass (policy=none) header.from=linux.dev ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1769516219; a=rsa-sha256; cv=none; b=BWOqSaMr9j2KsOZRfNU3eJSONBEN/EWOXSBAVS3TO3JUPDCcQDbFHLSpiqHlAjqL4rBp3V pQXxg+Q1RX2NMsZwuEeszOGVxLtkewQbjDwInY2RWuc1j67dIOassL+bwt9eQQP1n2n08u xWKpy2cCQ3dNL3vnvnR/LylbakobMHU= X-Report-Abuse: Please report any abuse attempt to abuse@migadu.com and include these headers. DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.dev; s=key1; t=1769516217; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=cQBzLGwNWLhDwXoP+ZRSwxq1ZRzbrKmRMjKOPlq54sI=; b=jSGS7Oe7flEf1a3jjawW71oBSQhZPtzIf1jHxOLDpEaGXg/8H0JQMtgOEgm1lxSI0nFjif CMLoz1yjkN0nwmCjWOwy4dWfqN8+bvppy0gq8toChP4Uc6ASbK4hQf7zJ4fTJfyy7Xu7HL RfqIvb9PoL98f2B3qx4iqWkzECkNTi0= From: Qi Zheng To: david@kernel.org, andreas@gaisler.com, richard.weiyang@gmail.com, will@kernel.org, peterz@infradead.org, aneesh.kumar@kernel.org, npiggin@gmail.com, dev.jain@arm.com, ioworker0@gmail.com, linmag7@gmail.com, akpm@linux-foundation.org Cc: linux-arch@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, linux-alpha@vger.kernel.org, loongarch@lists.linux.dev, linux-mips@vger.kernel.org, linux-parisc@vger.kernel.org, linux-um@lists.infradead.org, sparclinux@vger.kernel.org, Qi Zheng Subject: [PATCH v4 7/8] mm: convert __HAVE_ARCH_TLB_REMOVE_TABLE to CONFIG_HAVE_ARCH_TLB_REMOVE_TABLE config Date: Tue, 27 Jan 2026 20:13:00 +0800 Message-ID: <5ebfa3d4b56e63c6906bda5eccaa9f7194d3a86b.1769515122.git.zhengqi.arch@bytedance.com> In-Reply-To: References: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Migadu-Flow: FLOW_OUT X-Rspamd-Server: rspam11 X-Stat-Signature: 75wt1x6aipmzjnr3nwittei4f9jkr6q1 X-Rspam-User: X-Rspamd-Queue-Id: 72A761C0013 X-HE-Tag: 1769516219-88898 X-HE-Meta: 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 sAOKgNtU 2jzkrkBFs/xNrLBN6sQWJ3CtLiW3k2XiyJJnu+VmnPCelwAlbbTQwrbFUatXhEaey/yvB3ogTfPOSR4mmMsyw4a/GIDtGlE17oxR22qSfAdK8f50bJ+GHvWtOCraIlJV6y6ATKWzUL06u1BPfzdzQeDbFKTjo1TUOpjOH81mhl7+3SrSCCeST5LVvQGFgXGUp4++LUaciWhKvwPlBY1SOmx6tGlqMKRa4zvrlT0ZMXCmfriA1MFfVYoGwbmBdRS+4n1fIpe+6IfITCM5bTM7lFjZituAwriv5XceB9O5YSnISGr9Ykk8ZBzwZ0aWzp+fDcotWlavAfrj7OnVKZ+gt4aDK3A== X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: From: Qi Zheng For architectures that define __HAVE_ARCH_TLB_REMOVE_TABLE, the page tables at the pmd/pud level are generally not of struct ptdesc type, and do not have pt_rcu_head member, thus these architectures cannot support PT_RECLAIM. In preparation for enabling PT_RECLAIM on more architectures, convert __HAVE_ARCH_TLB_REMOVE_TABLE to CONFIG_HAVE_ARCH_TLB_REMOVE_TABLE config, so that we can make conditional judgments in Kconfig. Signed-off-by: Qi Zheng --- arch/powerpc/Kconfig | 1 + arch/powerpc/include/asm/tlb.h | 1 - arch/sparc/Kconfig | 1 + arch/sparc/include/asm/tlb_64.h | 1 - include/asm-generic/tlb.h | 2 +- mm/Kconfig | 3 +++ 6 files changed, 6 insertions(+), 3 deletions(-) diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig index 9537a61ebae02..b47aa8fd62742 100644 --- a/arch/powerpc/Kconfig +++ b/arch/powerpc/Kconfig @@ -304,6 +304,7 @@ config PPC select LOCK_MM_AND_FIND_VMA select MMU_GATHER_PAGE_SIZE select MMU_GATHER_RCU_TABLE_FREE + select HAVE_ARCH_TLB_REMOVE_TABLE select MMU_GATHER_MERGE_VMAS select MMU_LAZY_TLB_SHOOTDOWN if PPC_BOOK3S_64 select MODULES_USE_ELF_RELA diff --git a/arch/powerpc/include/asm/tlb.h b/arch/powerpc/include/asm/tlb.h index 2058e8d3e0138..1ca7d4c4b90db 100644 --- a/arch/powerpc/include/asm/tlb.h +++ b/arch/powerpc/include/asm/tlb.h @@ -37,7 +37,6 @@ extern void tlb_flush(struct mmu_gather *tlb); */ #define tlb_needs_table_invalidate() radix_enabled() -#define __HAVE_ARCH_TLB_REMOVE_TABLE /* Get the generic bits... */ #include diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig index a630d373e6453..25fa2908d6152 100644 --- a/arch/sparc/Kconfig +++ b/arch/sparc/Kconfig @@ -74,6 +74,7 @@ config SPARC64 select HAVE_KRETPROBES select HAVE_KPROBES select MMU_GATHER_RCU_TABLE_FREE if SMP + select HAVE_ARCH_TLB_REMOVE_TABLE if SMP select MMU_GATHER_MERGE_VMAS select MMU_GATHER_NO_FLUSH_CACHE select HAVE_ARCH_TRANSPARENT_HUGEPAGE diff --git a/arch/sparc/include/asm/tlb_64.h b/arch/sparc/include/asm/tlb_64.h index 1a6e694418e39..3037187482db7 100644 --- a/arch/sparc/include/asm/tlb_64.h +++ b/arch/sparc/include/asm/tlb_64.h @@ -33,7 +33,6 @@ void flush_tlb_pending(void); #define tlb_needs_table_invalidate() (false) #endif -#define __HAVE_ARCH_TLB_REMOVE_TABLE #include #endif /* _SPARC64_TLB_H */ diff --git a/include/asm-generic/tlb.h b/include/asm-generic/tlb.h index 4d679d2a206b4..3427b8036ba33 100644 --- a/include/asm-generic/tlb.h +++ b/include/asm-generic/tlb.h @@ -213,7 +213,7 @@ struct mmu_table_batch { #define MAX_TABLE_BATCH \ ((PAGE_SIZE - sizeof(struct mmu_table_batch)) / sizeof(void *)) -#ifndef __HAVE_ARCH_TLB_REMOVE_TABLE +#ifndef CONFIG_HAVE_ARCH_TLB_REMOVE_TABLE static inline void __tlb_remove_table(void *table) { struct ptdesc *ptdesc = (struct ptdesc *)table; diff --git a/mm/Kconfig b/mm/Kconfig index a992f2203eb91..456e9eaedca39 100644 --- a/mm/Kconfig +++ b/mm/Kconfig @@ -1451,6 +1451,9 @@ config ARCH_HAS_USER_SHADOW_STACK The architecture has hardware support for userspace shadow call stacks (eg, x86 CET, arm64 GCS or RISC-V Zicfiss). +config HAVE_ARCH_TLB_REMOVE_TABLE + def_bool n + config ARCH_SUPPORTS_PT_RECLAIM def_bool n -- 2.20.1