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Mon, 24 Feb 2025 19:46:18 -0800 (PST) From: Qi Zheng To: peterz@infradead.org, kevin.brodsky@arm.com, riel@surriel.com, vishal.moola@gmail.com, david@redhat.com, jannh@google.com, hughd@google.com, willy@infradead.org, yuzhao@google.com, muchun.song@linux.dev, akpm@linux-foundation.org, will@kernel.org, aneesh.kumar@kernel.org, npiggin@gmail.com, arnd@arndb.de, dave.hansen@linux.intel.com, rppt@kernel.org, alexghiti@rivosinc.com Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org, linux-csky@vger.kernel.org, linux-hexagon@vger.kernel.org, loongarch@lists.linux.dev, linux-m68k@lists.linux-m68k.org, linux-mips@vger.kernel.org, linux-openrisc@vger.kernel.org, linux-sh@vger.kernel.org, linux-um@lists.infradead.org, x86@kernel.org, linux-riscv@lists.infradead.org, Qi Zheng Subject: [PATCH v2 0/6] remove tlb_remove_page_ptdesc() Date: Tue, 25 Feb 2025 11:45:50 +0800 Message-Id: X-Mailer: git-send-email 2.24.3 (Apple Git-128) MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250224_194624_230246_F81BA384 X-CRM114-Status: GOOD ( 10.27 ) X-BeenThere: linux-riscv@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org Changes in v2: - add [PATCH v2 2/6] (Peter Zijlstra) - remove [PATCH 4/5] and add [PATCH v2 5/6] - rebase onto the next-20250224 Hi all, As suggested by Peter Zijlstra below [1], this series aims to remove tlb_remove_page_ptdesc(). : Fundamentally tlb_remove_page() is about removing *pages* as from a PTE, : there should not be a page-table anywhere near here *ever*. : : Yes, some architectures use tlb_remove_page() for page-tables too, but : that is more or less an implementation detail that can be fixed. After this series, all architectures use tlb_remove_table() or tlb_remove_ptdesc() to remove the page table pages. In the future, once all architectures using tlb_remove_table() have also converted to using struct ptdesc (eg. powerpc), it may be possible to use only tlb_remove_ptdesc(). This series is based on next-20250224. Comments and suggestions are welcome! Thanks, Qi [1]. https://lore.kernel.org/linux-mm/20250103111457.GC22934@noisy.programming.kicks-ass.net/ Qi Zheng (6): mm: pgtable: make generic tlb_remove_table() use struct ptdesc mm: pgtable: change pt parameter of tlb_remove_ptdesc() to struct ptdesc * mm: pgtable: convert some architectures to use tlb_remove_ptdesc() riscv: pgtable: unconditionally use tlb_remove_ptdesc() x86: pgtable: convert to use tlb_remove_ptdesc() mm: pgtable: remove tlb_remove_page_ptdesc() arch/csky/include/asm/pgalloc.h | 3 +-- arch/hexagon/include/asm/pgalloc.h | 3 +-- arch/loongarch/include/asm/pgalloc.h | 3 +-- arch/m68k/include/asm/sun3_pgalloc.h | 3 +-- arch/mips/include/asm/pgalloc.h | 3 +-- arch/nios2/include/asm/pgalloc.h | 9 ++++----- arch/openrisc/include/asm/pgalloc.h | 3 +-- arch/riscv/include/asm/pgalloc.h | 26 ++++---------------------- arch/sh/include/asm/pgalloc.h | 3 +-- arch/um/include/asm/pgalloc.h | 9 +++------ arch/x86/mm/pgtable.c | 8 ++++---- include/asm-generic/tlb.h | 14 ++++---------- 12 files changed, 26 insertions(+), 61 deletions(-)