From: Jason Gunthorpe <jgg@ziepe.ca>
To: "Vishal Moola (Oracle)" <vishal.moola@gmail.com>
Cc: Andrew Morton <akpm@linux-foundation.org>,
Matthew Wilcox <willy@infradead.org>,
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, 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: Re: [PATCH v2 00/34] Split ptdesc from struct page
Date: Thu, 18 May 2023 09:12:04 -0300 [thread overview]
Message-ID: <ZGYWFIfyDtdpeWg1@ziepe.ca> (raw)
In-Reply-To: <20230501192829.17086-1-vishal.moola@gmail.com>
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
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prev parent reply other threads:[~2023-05-18 12:12 UTC|newest]
Thread overview: 57+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-05-01 19:27 [PATCH v2 00/34] Split ptdesc from struct page Vishal Moola (Oracle)
2023-05-01 19:27 ` [PATCH v2 01/34] mm: Add PAGE_TYPE_OP folio functions Vishal Moola (Oracle)
2023-05-25 8:55 ` Mike Rapoport
2023-05-25 17:00 ` Vishal Moola
2023-05-25 20:20 ` Mike Rapoport
2023-05-25 20:38 ` Vishal Moola
2023-05-25 20:57 ` Matthew Wilcox
2023-05-01 19:27 ` [PATCH v2 02/34] s390: Use _pt_s390_gaddr for gmap address tracking Vishal Moola (Oracle)
2023-05-25 8:58 ` Mike Rapoport
2023-05-25 17:12 ` Vishal Moola
2023-05-01 19:27 ` [PATCH v2 03/34] s390: Use pt_frag_refcount for pagetables Vishal Moola (Oracle)
2023-05-01 19:27 ` [PATCH v2 04/34] pgtable: Create struct ptdesc Vishal Moola (Oracle)
2023-05-01 19:28 ` [PATCH v2 05/34] mm: add utility functions for ptdesc Vishal Moola (Oracle)
2023-05-25 9:09 ` Mike Rapoport
2023-05-25 18:04 ` Vishal Moola
2023-05-25 20:25 ` Mike Rapoport
2023-05-25 20:53 ` Vishal Moola
2023-05-27 10:41 ` Mike Rapoport
2023-05-27 15:09 ` Matthew Wilcox
2023-05-28 5:47 ` Mike Rapoport
2023-05-01 19:28 ` [PATCH v2 06/34] mm: Convert pmd_pgtable_page() to pmd_ptdesc() Vishal Moola (Oracle)
2023-05-01 19:28 ` [PATCH v2 07/34] mm: Convert ptlock_alloc() to use ptdescs Vishal Moola (Oracle)
2023-05-01 19:28 ` [PATCH v2 08/34] mm: Convert ptlock_ptr() " Vishal Moola (Oracle)
2023-05-01 19:28 ` [PATCH v2 09/34] mm: Convert pmd_ptlock_init() " Vishal Moola (Oracle)
2023-05-01 19:28 ` [PATCH v2 10/34] mm: Convert ptlock_init() " Vishal Moola (Oracle)
2023-05-01 19:28 ` [PATCH v2 11/34] mm: Convert pmd_ptlock_free() " Vishal Moola (Oracle)
2023-05-01 19:28 ` [PATCH v2 12/34] mm: Convert ptlock_free() " Vishal Moola (Oracle)
2023-05-01 19:28 ` [PATCH v2 13/34] mm: Create ptdesc equivalents for pgtable_{pte,pmd}_page_{ctor,dtor} Vishal Moola (Oracle)
2023-05-25 9:19 ` Mike Rapoport
2023-05-25 18:17 ` Vishal Moola
2023-05-01 19:28 ` [PATCH v2 14/34] powerpc: Convert various functions to use ptdescs Vishal Moola (Oracle)
2023-05-01 19:28 ` [PATCH v2 15/34] x86: " Vishal Moola (Oracle)
2023-05-01 19:28 ` [PATCH v2 16/34] s390: Convert various gmap " Vishal Moola (Oracle)
2023-05-01 19:28 ` [PATCH v2 17/34] s390: Convert various pgalloc " Vishal Moola (Oracle)
2023-05-01 19:28 ` [PATCH v2 18/34] mm: Remove page table members from struct page Vishal Moola (Oracle)
2023-05-01 19:28 ` [PATCH v2 19/34] pgalloc: Convert various functions to use ptdescs Vishal Moola (Oracle)
2023-05-01 19:28 ` [PATCH v2 20/34] arm: " Vishal Moola (Oracle)
2023-05-01 19:28 ` [PATCH v2 21/34] arm64: " Vishal Moola (Oracle)
2023-05-02 1:48 ` kernel test robot
2023-05-02 2:21 ` kernel test robot
2023-05-01 19:28 ` [PATCH v2 22/34] csky: Convert __pte_free_tlb() " Vishal Moola (Oracle)
2023-05-01 19:28 ` [PATCH v2 23/34] hexagon: " Vishal Moola (Oracle)
2023-05-01 19:28 ` [PATCH v2 24/34] loongarch: Convert various functions " Vishal Moola (Oracle)
2023-05-01 19:28 ` [PATCH v2 25/34] m68k: " Vishal Moola (Oracle)
2023-05-01 19:28 ` [PATCH v2 26/34] mips: " Vishal Moola (Oracle)
2023-05-01 19:28 ` [PATCH v2 27/34] nios2: Convert __pte_free_tlb() " Vishal Moola (Oracle)
2023-05-01 19:28 ` [PATCH v2 28/34] openrisc: " Vishal Moola (Oracle)
2023-05-01 19:28 ` [PATCH v2 29/34] riscv: Convert alloc_{pmd, pte}_late() " Vishal Moola (Oracle)
2023-05-01 20:59 ` Palmer Dabbelt
2023-05-01 19:28 ` [PATCH v2 30/34] sh: Convert pte_free_tlb() " Vishal Moola (Oracle)
2023-05-06 11:35 ` John Paul Adrian Glaubitz
2023-05-15 19:11 ` Vishal Moola
2023-05-01 19:28 ` [PATCH v2 31/34] sparc64: Convert various functions " Vishal Moola (Oracle)
2023-05-01 19:28 ` [PATCH v2 32/34] sparc: Convert pgtable_pte_page_{ctor, dtor}() to ptdesc equivalents Vishal Moola (Oracle)
2023-05-01 19:28 ` [PATCH v2 33/34] um: Convert {pmd, pte}_free_tlb() to use ptdescs Vishal Moola (Oracle)
2023-05-01 19:28 ` [PATCH v2 34/34] mm: Remove pgtable_{pmd, pte}_page_{ctor, dtor}() wrappers Vishal Moola (Oracle)
2023-05-18 12:12 ` Jason Gunthorpe [this message]
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