From mboxrd@z Thu Jan 1 00:00:00 1970 From: Joel Fernandes Subject: [PATCH -next-akpm 0/3] Add support for fast mremap Date: Thu, 8 Nov 2018 10:11:58 -0800 Message-ID: <20181108181201.88826-1-joelaf@google.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-snps-arc" Errors-To: linux-snps-arc-bounces+gla-linux-snps-arc=m.gmane.org@lists.infradead.org To: linux-kernel@vger.kernel.org Cc: Joel Fernandes , linux-mips@linux-mips.org, Rich Felker , linux-ia64@vger.kernel.org, linux-sh@vger.kernel.org, Peter Zijlstra , Catalin Marinas , Dave Hansen , Will Deacon , Michal Hocko , linux-mm@kvack.org, lokeshgidra@google.com, sparclinux@vger.kernel.org, linux-riscv@lists.infradead.org, anton.ivanov@kot-begemot.co.uk, Jonas Bonn , linux-s390@vger.kernel.org, dancol@google.com, Yoshinori Sato , linux-xtensa@linux-xtensa.org, linux-hexagon@vger.kernel.org, Helge Deller , "maintainer:X86 ARCHITECTURE 32-BIT AND 64-BIT" , hughd@google.com, "James E.J. Bottomley" , kasan-dev@googlegroups.com, kvmarm@lists.cs.columbia.ed List-Id: kvmarm@lists.cs.columbia.edu Hi, Here is the "fast mremap" series. This just a repost with Kirill's Acked-bys added and William's Reviewed-by added. Also fixed a UML build error reported last week. I would like this to be considered for linux -next. The performance numbers in the series are for testing on x86. The config enablement patch for arm64 will be posted in the future after testing (see notes below). List of patches in series: (1) mm: select HAVE_MOVE_PMD in x86 for faster mremap (2) mm: speed up mremap by 20x on large regions (v5) v1->v2: Added support for per-arch enablement (Kirill Shutemov) v2->v3: Updated commit message to state the optimization may also run for non-thp type of systems (Daniel Col). v3->v4: Remove useless pmd_lock check (Kirill Shutemov) Rebased ontop of Linus's master, updated perf results based on x86 testing. Added Kirill's Acks. v4->v5: Added William's Reviewed-by. Fixed arch/um build error due to set_pmd_at not defined. Rebased on linux-next/akpm. (3) mm: treewide: remove unused address argument from pte_alloc functions (v2) v1->v2: fix arch/um/ prototype which was missed in v1 (Anton Ivanov) update changelog with manual fixups for m68k and microblaze. not included - (4) mm: select HAVE_MOVE_PMD in arm64 for faster mremap This patch is dropped since last posting pending further performance testing on arm64 with new TLB gather updates. See notes in patch titled "mm: speed up mremap by 500x on large regions" for more details. Joel Fernandes (Google) (3): mm: treewide: remove unused address argument from pte_alloc functions (v2) mm: speed up mremap by 20x on large regions (v5) mm: select HAVE_MOVE_PMD in x86 for faster mremap arch/Kconfig | 5 ++ arch/alpha/include/asm/pgalloc.h | 6 +- arch/arc/include/asm/pgalloc.h | 5 +- arch/arm/include/asm/pgalloc.h | 4 +- arch/arm64/include/asm/pgalloc.h | 4 +- arch/hexagon/include/asm/pgalloc.h | 6 +- arch/ia64/include/asm/pgalloc.h | 5 +- arch/m68k/include/asm/mcf_pgalloc.h | 8 +-- arch/m68k/include/asm/motorola_pgalloc.h | 4 +- arch/m68k/include/asm/sun3_pgalloc.h | 6 +- arch/microblaze/include/asm/pgalloc.h | 19 +----- arch/microblaze/mm/pgtable.c | 3 +- arch/mips/include/asm/pgalloc.h | 6 +- arch/nds32/include/asm/pgalloc.h | 5 +- arch/nios2/include/asm/pgalloc.h | 6 +- arch/openrisc/include/asm/pgalloc.h | 5 +- arch/openrisc/mm/ioremap.c | 3 +- arch/parisc/include/asm/pgalloc.h | 4 +- arch/powerpc/include/asm/book3s/32/pgalloc.h | 4 +- arch/powerpc/include/asm/book3s/64/pgalloc.h | 12 ++-- arch/powerpc/include/asm/nohash/32/pgalloc.h | 4 +- arch/powerpc/include/asm/nohash/64/pgalloc.h | 6 +- arch/powerpc/mm/pgtable-book3s64.c | 2 +- arch/powerpc/mm/pgtable_32.c | 4 +- arch/riscv/include/asm/pgalloc.h | 6 +- arch/s390/include/asm/pgalloc.h | 4 +- arch/sh/include/asm/pgalloc.h | 6 +- arch/sparc/include/asm/pgalloc_32.h | 5 +- arch/sparc/include/asm/pgalloc_64.h | 6 +- arch/sparc/mm/init_64.c | 6 +- arch/sparc/mm/srmmu.c | 4 +- arch/um/include/asm/pgalloc.h | 4 +- arch/um/kernel/mem.c | 4 +- arch/unicore32/include/asm/pgalloc.h | 4 +- arch/x86/Kconfig | 1 + arch/x86/include/asm/pgalloc.h | 4 +- arch/x86/mm/pgtable.c | 4 +- arch/xtensa/include/asm/pgalloc.h | 8 +-- include/linux/mm.h | 13 ++-- mm/huge_memory.c | 8 +-- mm/kasan/kasan_init.c | 2 +- mm/memory.c | 17 +++--- mm/migrate.c | 2 +- mm/mremap.c | 64 +++++++++++++++++++- mm/userfaultfd.c | 2 +- virt/kvm/arm/mmu.c | 2 +- 46 files changed, 165 insertions(+), 147 deletions(-) -- 2.19.1.930.g4563a0d9d0-goog