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Message-Id: <1419423766-114457-1-git-send-email-kirill.shutemov@linux.intel.com> Date: Wed, 24 Dec 2014 14:22:08 +0200 From: "Kirill A. Shutemov" <kirill.shutemov@...ux.intel.com> To: akpm@...ux-foundation.org Cc: peterz@...radead.org, mingo@...nel.org, davej@...hat.com, sasha.levin@...cle.com, hughd@...gle.com, linux-mm@...ck.org, linux-arch@...r.kernel.org, linux-kernel@...r.kernel.org, "Kirill A. Shutemov" <kirill.shutemov@...ux.intel.com> Subject: [PATCH 00/38] mm: remove non-linear mess We have remap_file_pages(2) emulation in -mm tree for few release cycles and we plan to have it mainline in v3.20. This patchset removes rest of VM_NONLINEAR infrastructure. Patches 1-8 take care about generic code. They are pretty straight-forward and can be applied without other of patches. Rest patches removes pte_file()-related stuff from architecture-specific code. It usually frees up one bit in non-present pte. I've tried to reuse that bit for swap offset, where I was able to figure out how to do that. For obvious reason I cannot test all that arch-specific code and would like to see acks from maintainers. In total, remap_file_pages(2) required about 1.4K lines of not-so-trivial kernel code. That's too much for functionality nobody uses. git://git.kernel.org/pub/scm/linux/kernel/git/kas/linux.git remap_file_pages Kirill A. Shutemov (38): mm: drop support of non-linear mapping from unmap/zap codepath mm: drop support of non-linear mapping from fault codepath mm: drop vm_ops->remap_pages and generic_file_remap_pages() stub proc: drop handling non-linear mappings rmap: drop support of non-linear mappings mm: replace vma->sharead.linear with vma->shared mm: remove rest usage of VM_NONLINEAR and pte_file() asm-generic: drop unused pte_file* helpers alpha: drop _PAGE_FILE and pte_file()-related helpers arc: drop _PAGE_FILE and pte_file()-related helpers arm64: drop PTE_FILE and pte_file()-related helpers arm: drop L_PTE_FILE and pte_file()-related helpers avr32: drop _PAGE_FILE and pte_file()-related helpers blackfin: drop pte_file() c6x: drop pte_file() cris: drop _PAGE_FILE and pte_file()-related helpers frv: drop _PAGE_FILE and pte_file()-related helpers hexagon: drop _PAGE_FILE and pte_file()-related helpers ia64: drop _PAGE_FILE and pte_file()-related helpers m32r: drop _PAGE_FILE and pte_file()-related helpers m68k: drop _PAGE_FILE and pte_file()-related helpers metag: drop _PAGE_FILE and pte_file()-related helpers microblaze: drop _PAGE_FILE and pte_file()-related helpers mips: drop _PAGE_FILE and pte_file()-related helpers mn10300: drop _PAGE_FILE and pte_file()-related helpers nios2: drop _PAGE_FILE and pte_file()-related helpers openrisc: drop _PAGE_FILE and pte_file()-related helpers parisc: drop _PAGE_FILE and pte_file()-related helpers powerpc: drop _PAGE_FILE and pte_file()-related helpers s390: drop pte_file()-related helpers score: drop _PAGE_FILE and pte_file()-related helpers sh: drop _PAGE_FILE and pte_file()-related helpers sparc: drop pte_file()-related helpers tile: drop pte_file()-related helpers um: drop _PAGE_FILE and pte_file()-related helpers unicore32: drop pte_file()-related helpers x86: drop _PAGE_FILE and pte_file()-related helpers xtensa: drop _PAGE_FILE and pte_file()-related helpers Documentation/cachetlb.txt | 8 +- arch/alpha/include/asm/pgtable.h | 7 - arch/arc/include/asm/pgtable.h | 15 +- arch/arm/include/asm/pgtable-2level.h | 1 - arch/arm/include/asm/pgtable-3level.h | 1 - arch/arm/include/asm/pgtable-nommu.h | 2 - arch/arm/include/asm/pgtable.h | 20 +-- arch/arm/mm/proc-macros.S | 2 +- arch/arm64/include/asm/pgtable.h | 22 +-- arch/avr32/include/asm/pgtable.h | 25 ---- arch/blackfin/include/asm/pgtable.h | 5 - arch/c6x/include/asm/pgtable.h | 5 - arch/cris/include/arch-v10/arch/mmu.h | 3 - arch/cris/include/arch-v32/arch/mmu.h | 3 - arch/cris/include/asm/pgtable.h | 4 - arch/frv/include/asm/pgtable.h | 27 +--- arch/hexagon/include/asm/pgtable.h | 60 ++------ arch/ia64/include/asm/pgtable.h | 25 +--- arch/m32r/include/asm/pgtable-2level.h | 4 - arch/m32r/include/asm/pgtable.h | 11 -- arch/m68k/include/asm/mcf_pgtable.h | 23 +-- arch/m68k/include/asm/motorola_pgtable.h | 15 -- arch/m68k/include/asm/pgtable_no.h | 2 - arch/m68k/include/asm/sun3_pgtable.h | 15 -- arch/metag/include/asm/pgtable.h | 6 - arch/microblaze/include/asm/pgtable.h | 11 -- arch/mips/include/asm/pgtable-32.h | 36 ----- arch/mips/include/asm/pgtable-64.h | 9 -- arch/mips/include/asm/pgtable-bits.h | 9 -- arch/mips/include/asm/pgtable.h | 2 - arch/mn10300/include/asm/pgtable.h | 17 +-- arch/nios2/include/asm/pgtable-bits.h | 1 - arch/nios2/include/asm/pgtable.h | 10 +- arch/openrisc/include/asm/pgtable.h | 8 - arch/openrisc/kernel/head.S | 5 - arch/parisc/include/asm/pgtable.h | 10 -- arch/powerpc/include/asm/pgtable-ppc32.h | 9 +- arch/powerpc/include/asm/pgtable-ppc64.h | 5 +- arch/powerpc/include/asm/pgtable.h | 1 - arch/powerpc/include/asm/pte-40x.h | 1 - arch/powerpc/include/asm/pte-44x.h | 5 - arch/powerpc/include/asm/pte-8xx.h | 1 - arch/powerpc/include/asm/pte-book3e.h | 1 - arch/powerpc/include/asm/pte-fsl-booke.h | 3 - arch/powerpc/include/asm/pte-hash32.h | 1 - arch/powerpc/include/asm/pte-hash64.h | 1 - arch/powerpc/mm/pgtable_64.c | 2 +- arch/s390/include/asm/pgtable.h | 29 +--- arch/score/include/asm/pgtable-bits.h | 1 - arch/score/include/asm/pgtable.h | 18 +-- arch/sh/include/asm/pgtable_32.h | 31 +--- arch/sh/include/asm/pgtable_64.h | 9 +- arch/sparc/include/asm/pgtable_32.h | 24 --- arch/sparc/include/asm/pgtable_64.h | 40 ----- arch/sparc/include/asm/pgtsrmmu.h | 14 +- arch/tile/include/asm/pgtable.h | 11 -- arch/tile/mm/homecache.c | 4 - arch/um/include/asm/pgtable-2level.h | 9 -- arch/um/include/asm/pgtable-3level.h | 20 --- arch/um/include/asm/pgtable.h | 9 -- arch/unicore32/include/asm/pgtable-hwdef.h | 1 - arch/unicore32/include/asm/pgtable.h | 14 -- arch/x86/include/asm/pgtable-2level.h | 38 +---- arch/x86/include/asm/pgtable-3level.h | 12 -- arch/x86/include/asm/pgtable.h | 20 --- arch/x86/include/asm/pgtable_64.h | 6 +- arch/x86/include/asm/pgtable_types.h | 3 - arch/xtensa/include/asm/pgtable.h | 10 -- drivers/gpu/drm/drm_vma_manager.c | 3 +- fs/9p/vfs_file.c | 2 - fs/btrfs/file.c | 1 - fs/ceph/addr.c | 1 - fs/cifs/file.c | 1 - fs/ext4/file.c | 1 - fs/f2fs/file.c | 1 - fs/fuse/file.c | 1 - fs/gfs2/file.c | 1 - fs/inode.c | 1 - fs/nfs/file.c | 1 - fs/nilfs2/file.c | 1 - fs/ocfs2/mmap.c | 1 - fs/proc/task_mmu.c | 16 -- fs/ubifs/file.c | 1 - fs/xfs/xfs_file.c | 1 - include/asm-generic/pgtable.h | 15 -- include/linux/fs.h | 10 +- include/linux/mm.h | 27 +--- include/linux/mm_types.h | 12 +- include/linux/rmap.h | 2 - include/linux/swapops.h | 4 +- kernel/fork.c | 8 +- mm/debug.c | 1 - mm/filemap.c | 1 - mm/filemap_xip.c | 1 - mm/gup.c | 2 +- mm/interval_tree.c | 34 ++--- mm/ksm.c | 2 +- mm/madvise.c | 13 +- mm/memcontrol.c | 4 +- mm/memory.c | 225 +++++++++-------------------- mm/migrate.c | 32 ---- mm/mincore.c | 5 +- mm/mmap.c | 24 +-- mm/mprotect.c | 2 +- mm/mremap.c | 2 - mm/msync.c | 5 +- mm/rmap.c | 225 +---------------------------- mm/shmem.c | 1 - mm/swap.c | 4 +- 109 files changed, 187 insertions(+), 1290 deletions(-) -- 2.1.3 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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