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Message-Id: <20230315113133.11326-1-kirill.shutemov@linux.intel.com>
Date: Wed, 15 Mar 2023 14:31:23 +0300
From: "Kirill A. Shutemov" <kirill.shutemov@...ux.intel.com>
To: Andrew Morton <akpm@...ux-foundation.org>,
Mel Gorman <mgorman@...e.de>, Vlastimil Babka <vbabka@...e.cz>,
David Hildenbrand <david@...hat.com>
Cc: linux-mm@...ck.org, linux-arch@...r.kernel.org,
linux-kernel@...r.kernel.org,
"Kirill A. Shutemov" <kirill.shutemov@...ux.intel.com>
Subject: [PATCH 00/10] Fix confusion around MAX_ORDER
MAX_ORDER currently defined as number of orders page allocator supports:
user can ask buddy allocator for page order between 0 and MAX_ORDER-1.
This definition is counter-intuitive and lead to number of bugs all over
the kernel.
Fix the bugs and then change the definition of MAX_ORDER to be
inclusive: the range of orders user can ask from buddy allocator is
0..MAX_ORDER now.
Kirill A. Shutemov (10):
sparc/mm: Fix MAX_ORDER usage in tsb_grow()
um: Fix MAX_ORDER usage in linux_main()
floppy: Fix MAX_ORDER usage
drm/i915: Fix MAX_ORDER usage in i915_gem_object_get_pages_internal()
genwqe: Fix MAX_ORDER usage
perf/core: Fix MAX_ORDER usage in rb_alloc_aux_page()
mm/page_reporting: Fix MAX_ORDER usage in page_reporting_register()
mm/slub: Fix MAX_ORDER usage in calculate_order()
iommu: Fix MAX_ORDER usage in __iommu_dma_alloc_pages()
mm, treewide: Redefine MAX_ORDER sanely
.../admin-guide/kdump/vmcoreinfo.rst | 2 +-
.../admin-guide/kernel-parameters.txt | 2 +-
arch/arc/Kconfig | 4 +-
arch/arm/Kconfig | 9 ++---
arch/arm/configs/imx_v6_v7_defconfig | 2 +-
arch/arm/configs/milbeaut_m10v_defconfig | 2 +-
arch/arm/configs/oxnas_v6_defconfig | 2 +-
arch/arm/configs/pxa_defconfig | 2 +-
arch/arm/configs/sama7_defconfig | 2 +-
arch/arm/configs/sp7021_defconfig | 2 +-
arch/arm64/Kconfig | 27 ++++++-------
arch/arm64/include/asm/sparsemem.h | 2 +-
arch/arm64/kvm/hyp/include/nvhe/gfp.h | 2 +-
arch/arm64/kvm/hyp/nvhe/page_alloc.c | 10 ++---
arch/csky/Kconfig | 2 +-
arch/ia64/Kconfig | 8 ++--
arch/ia64/include/asm/sparsemem.h | 4 +-
arch/ia64/mm/hugetlbpage.c | 2 +-
arch/loongarch/Kconfig | 15 +++-----
arch/m68k/Kconfig.cpu | 5 +--
arch/mips/Kconfig | 19 ++++------
arch/nios2/Kconfig | 7 +---
arch/powerpc/Kconfig | 27 ++++++-------
arch/powerpc/configs/85xx/ge_imp3a_defconfig | 2 +-
arch/powerpc/configs/fsl-emb-nonhw.config | 2 +-
arch/powerpc/mm/book3s64/iommu_api.c | 2 +-
arch/powerpc/mm/hugetlbpage.c | 2 +-
arch/powerpc/platforms/powernv/pci-ioda.c | 2 +-
arch/sh/configs/ecovec24_defconfig | 2 +-
arch/sh/mm/Kconfig | 17 ++++-----
arch/sparc/Kconfig | 5 +--
arch/sparc/kernel/pci_sun4v.c | 2 +-
arch/sparc/kernel/traps_64.c | 2 +-
arch/sparc/mm/tsb.c | 4 +-
arch/xtensa/Kconfig | 5 +--
drivers/base/regmap/regmap-debugfs.c | 8 ++--
drivers/block/floppy.c | 2 +-
drivers/crypto/ccp/sev-dev.c | 2 +-
drivers/crypto/hisilicon/sgl.c | 6 +--
.../gpu/drm/i915/gem/selftests/huge_pages.c | 2 +-
drivers/gpu/drm/ttm/ttm_pool.c | 22 +++++------
drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.h | 2 +-
drivers/iommu/dma-iommu.c | 4 +-
drivers/irqchip/irq-gic-v3-its.c | 4 +-
drivers/md/dm-bufio.c | 2 +-
drivers/misc/genwqe/card_utils.c | 2 +-
.../net/ethernet/hisilicon/hns3/hns3_enet.c | 2 +-
drivers/net/ethernet/ibm/ibmvnic.h | 2 +-
drivers/video/fbdev/hyperv_fb.c | 4 +-
drivers/video/fbdev/vermilion/vermilion.c | 2 +-
drivers/virtio/virtio_balloon.c | 2 +-
drivers/virtio/virtio_mem.c | 12 +++---
fs/ramfs/file-nommu.c | 2 +-
include/drm/ttm/ttm_pool.h | 2 +-
include/linux/hugetlb.h | 2 +-
include/linux/mmzone.h | 10 ++---
include/linux/pageblock-flags.h | 4 +-
include/linux/slab.h | 6 +--
kernel/crash_core.c | 2 +-
kernel/dma/pool.c | 6 +--
mm/Kconfig | 6 +--
mm/compaction.c | 8 ++--
mm/debug_vm_pgtable.c | 4 +-
mm/huge_memory.c | 2 +-
mm/hugetlb.c | 4 +-
mm/kmsan/init.c | 6 +--
mm/memblock.c | 2 +-
mm/memory_hotplug.c | 4 +-
mm/page_alloc.c | 38 +++++++++----------
mm/page_isolation.c | 12 +++---
mm/page_owner.c | 6 +--
mm/page_reporting.c | 4 +-
mm/shuffle.h | 2 +-
mm/slab.c | 2 +-
mm/slub.c | 4 +-
mm/vmscan.c | 2 +-
mm/vmstat.c | 14 +++----
net/smc/smc_ib.c | 2 +-
security/integrity/ima/ima_crypto.c | 2 +-
tools/testing/memblock/linux/mmzone.h | 6 +--
80 files changed, 210 insertions(+), 240 deletions(-)
--
2.39.2
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