Message ID | 20230501192829.17086-1-vishal.moola@gmail.com |
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Mon, 01 May 2023 12:28:33 -0700 (PDT) From: "Vishal Moola (Oracle)" <vishal.moola@gmail.com> To: Andrew Morton <akpm@linux-foundation.org>, Matthew Wilcox <willy@infradead.org> Cc: linux-mm@kvack.org, linux-arch@vger.kernel.org, linux-arm-kernel@lists.infradead.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, linuxppc-dev@lists.ozlabs.org, linux-riscv@lists.infradead.org, linux-s390@vger.kernel.org, linux-sh@vger.kernel.org, sparclinux@vger.kernel.org, linux-um@lists.infradead.org, xen-devel@lists.xenproject.org, kvm@vger.kernel.org, "Vishal Moola (Oracle)" <vishal.moola@gmail.com>, Catalin Marinas <catalin.marinas@arm.com>, Huacai Chen <chenhuacai@kernel.org>, Geert Uytterhoeven <geert@linux-m68k.org>, Thomas Bogendoerfer <tsbogend@alpha.franken.de>, Dinh Nguyen <dinguyen@kernel.org>, Jonas Bonn <jonas@southpole.se>, David Hildenbrand <david@redhat.com>, Claudio Imbrenda <imbrenda@linux.ibm.com>, Paul Walmsley <paul.walmsley@sifive.com>, "David S. Miller" <davem@davemloft.net>, Richard Weinberger <richard@nod.at>, Yoshinori Sato <ysato@users.sourceforge.jp>, Dave Hansen <dave.hansen@linux.intel.com>, Arnd Bergmann <arnd@arndb.de> Subject: [PATCH v2 00/34] Split ptdesc from struct page Date: Mon, 1 May 2023 12:27:55 -0700 Message-Id: <20230501192829.17086-1-vishal.moola@gmail.com> X-Mailer: git-send-email 2.39.2 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,FREEMAIL_FROM, RCVD_IN_DNSWL_NONE,SPF_HELO_NONE,SPF_PASS,T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: <sparclinux.vger.kernel.org> X-Mailing-List: sparclinux@vger.kernel.org |
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Split ptdesc from struct page
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On Mon, May 01, 2023 at 12:27:55PM -0700, Vishal Moola (Oracle) wrote: > The MM subsystem is trying to shrink struct page. This patchset > introduces a memory descriptor for page table tracking - struct ptdesc. > > This patchset introduces ptdesc, splits ptdesc from struct page, and > converts many callers of page table constructor/destructors to use ptdescs. Lightly related food for future thought - based on some discussions at LSF/MM it would be really nice if an end result of this was that a rcu_head was always available in the ptdesc so we don't need to allocate memory to free a page table. Jason