linux-kernel - [PATCH v2 0/4] vmalloc: Improve vmalloc(4MB) performance

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Message-Id: <20210324150518.2734402-1-willy@infradead.org>
Date:   Wed, 24 Mar 2021 15:05:14 +0000
From:   "Matthew Wilcox (Oracle)" <willy@...radead.org>
To:     linux-mm@...ck.org
Cc:     "Matthew Wilcox (Oracle)" <willy@...radead.org>,
        linux-kernel@...r.kernel.org,
        Andrew Morton <akpm@...ux-foundation.org>,
        Christoph Lameter <cl@...ux.com>,
        Pekka Enberg <penberg@...nel.org>,
        David Rientjes <rientjes@...gle.com>,
        Joonsoo Kim <iamjoonsoo.kim@....com>,
        Vlastimil Babka <vbabka@...e.cz>,
        Uladzislau Rezki <urezki@...il.com>,
        Nicholas Piggin <npiggin@...il.com>
Subject: [PATCH v2 0/4] vmalloc: Improve vmalloc(4MB) performance

I may have gone a little too far with the first patch.  It turns out we
have a lot of code using the vmalloc caller functionality, and I decided
to convert it all to unsigned long instead of leaving some paths as void *
and casting later.

I can redo that if necessary.  I've tested arm32, sh4 and powerpc32 builds
as well as x86, but I wouldn't be surprised if the buildbots tell me I
missed something.

Matthew Wilcox (Oracle) (4):
  mm/vmalloc: Change the 'caller' type to unsigned long
  mm/util: Add kvmalloc_node_caller
  mm/vmalloc: Use kvmalloc to allocate the table of pages
  MAINTAINERS: Add Vlad Rezki as vmalloc maintainer

 MAINTAINERS                               |  7 +++
 arch/arm/include/asm/io.h                 |  6 +--
 arch/arm/include/asm/mach/map.h           |  3 --
 arch/arm/kernel/module.c                  |  4 +-
 arch/arm/mach-imx/mm-imx3.c               |  2 +-
 arch/arm/mach-ixp4xx/common.c             |  2 +-
 arch/arm/mach-mvebu/coherency.c           |  2 +-
 arch/arm/mm/ioremap.c                     | 27 +++++------
 arch/arm/mm/mmu.c                         | 10 ++--
 arch/arm/mm/nommu.c                       | 16 +++---
 arch/arm64/include/asm/vmap_stack.h       |  2 +-
 arch/arm64/kernel/module.c                |  5 +-
 arch/arm64/kernel/probes/kprobes.c        |  2 +-
 arch/arm64/mm/ioremap.c                   |  7 ++-
 arch/arm64/mm/mmu.c                       |  2 +-
 arch/arm64/net/bpf_jit_comp.c             |  3 +-
 arch/mips/kernel/module.c                 |  2 +-
 arch/nds32/kernel/module.c                |  2 +-
 arch/parisc/kernel/module.c               |  5 +-
 arch/powerpc/include/asm/io-workarounds.h |  2 +-
 arch/powerpc/include/asm/io.h             |  6 +--
 arch/powerpc/kernel/io-workarounds.c      |  2 +-
 arch/powerpc/kernel/irq.c                 |  2 +-
 arch/powerpc/kernel/module.c              |  3 +-
 arch/powerpc/kernel/pci_64.c              |  3 +-
 arch/powerpc/mm/ioremap.c                 | 10 ++--
 arch/powerpc/mm/ioremap_32.c              |  8 +--
 arch/powerpc/mm/ioremap_64.c              |  4 +-
 arch/riscv/kernel/module.c                |  2 +-
 arch/riscv/net/bpf_jit_comp64.c           |  2 +-
 arch/s390/kernel/module.c                 |  2 +-
 arch/s390/kernel/setup.c                  |  3 +-
 arch/sh/include/asm/io.h                  | 11 ++---
 arch/sh/kernel/cpu/sh4/sq.c               |  2 +-
 arch/sh/mm/ioremap.c                      |  2 +-
 arch/sh/mm/pmb.c                          |  2 +-
 arch/sparc/kernel/module.c                |  2 +-
 arch/x86/hyperv/hv_init.c                 |  3 +-
 arch/x86/kernel/module.c                  |  3 +-
 arch/x86/mm/ioremap.c                     | 20 ++++----
 include/linux/mm.h                        |  4 +-
 include/linux/slab.h                      |  2 +
 include/linux/vmalloc.h                   | 22 ++++-----
 kernel/bpf/syscall.c                      |  2 +-
 kernel/fork.c                             |  2 +-
 kernel/module.c                           |  2 +-
 kernel/scs.c                              |  3 +-
 lib/test_vmalloc.c                        |  7 ++-
 mm/ioremap.c                              |  3 +-
 mm/kasan/shadow.c                         |  5 +-
 mm/nommu.c                                |  4 +-
 mm/util.c                                 | 52 +++++++++++---------
 mm/vmalloc.c                              | 59 +++++++++--------------
 53 files changed, 172 insertions(+), 198 deletions(-)

-- 
2.30.2