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Transparent Hugepage support #12

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  1. v1 Latest35 patches 0 repliesNew

Patches in v1 No applies recorded yet

#Subject and filesSizeRepliesApplied
1/35define MADV_HUGEPAGEarch/alpha/include/asm/mman.h arch/mips/include/asm/mman.h arch/parisc/include/asm/mman.h +2 more+9 -10 replies
2/35compound_lockinclude/linux/mm.h include/linux/page-flags.h+26 -10 replies
3/35alter compound get_page/put_pagearch/powerpc/mm/gup.c arch/x86/mm/gup.c include/linux/mm.h +1 more+106 -90 replies
4/35update futex compound knowledgekernel/futex.c+58 -90 replies
5/35fix bad_page to show the real reason the page is badmm/page_alloc.c+1 -10 replies
6/35clear compound mappingmm/page_alloc.c+2 -00 replies
7/35add native_set_pmd_atarch/x86/include/asm/pgtable.h+6 -00 replies
8/35add pmd paravirt opsarch/x86/include/asm/paravirt.h arch/x86/include/asm/paravirt_types.h arch/x86/kernel/paravirt.c+32 -00 replies
9/35no paravirt version of pmd opsarch/x86/include/asm/pgtable.h+3 -00 replies
10/35export maybe_mkwriteinclude/linux/mm.h mm/memory.c+13 -130 replies
11/35comment reminder in destroy_compound_pagemm/page_alloc.c+1 -00 replies
12/35config_transparent_hugepagemm/Kconfig+14 -00 replies
13/35special pmd_trans_* functionsarch/x86/include/asm/pgtable_64.h arch/x86/include/asm/pgtable_types.h include/asm-generic/pgtable.h+20 -00 replies
14/35add pmd mangling generic functionsinclude/asm-generic/pgtable.h+125 -00 replies
15/35add pmd mangling functions to x86arch/x86/include/asm/pgtable.h arch/x86/include/asm/pgtable_64.h arch/x86/mm/pgtable.c+175 -40 replies
16/35bail out gup_fast on splitting pmdarch/x86/mm/gup.c+12 -10 replies
17/35pte alloc trans splittinginclude/linux/mm.h mm/memory.c mm/mremap.c+25 -140 replies
18/35add pmd mmu_notifier helpersinclude/linux/mmu_notifier.h+40 -00 replies
19/35clear page compoundinclude/linux/page-flags.h+16 -10 replies
20/35add pmd_huge_pte to mm_structinclude/linux/mm_types.h kernel/fork.c+10 -00 replies
21/35split_huge_page_mm/vmaarch/x86/kernel/vm86_32.c mm/mempolicy.c mm/mincore.c +3 more+6 -00 replies
22/35split_huge_page pagingmm/memory-failure.c mm/rmap.c mm/swap_state.c +1 more+11 -00 replies
23/35clear_copy_huge_pageinclude/linux/mm.h mm/hugetlb.c mm/memory.c+82 -660 replies
24/35kvm mmu transparent hugepage supportarch/x86/kvm/mmu.c+9 -00 replies
25/35_GFP_NO_KSWAPDinclude/linux/gfp.h mm/page_alloc.c+5 -20 replies
26/35dont alloc harder for gfp nomemalloc even if nowaitmm/page_alloc.c+5 -10 replies
27/35transparent hugepage coreinclude/linux/gfp.h include/linux/huge_mm.h include/linux/mm.h +7 more+1144 -320 replies
28/35adapt to mm_counter in -mmmm/huge_memory.c+3 -30 replies
29/35verify pmd_trans_huge isnt leakingmm/memory.c+6 -10 replies
30/35madvise(MADV_HUGEPAGE)include/linux/huge_mm.h mm/huge_memory.c mm/madvise.c+30 -00 replies
31/35pmd_trans_huge migrate bugcheckinclude/linux/huge_mm.h mm/migrate.c+10 -00 replies
32/35memcg compoundDocumentation/cgroups/memory.txt mm/memcontrol.c+52 -320 replies
33/35memcg huge memorymm/huge_memory.c+25 -50 replies
34/35transparent hugepage vmstatfs/proc/meminfo.c include/linux/mmzone.h mm/huge_memory.c +2 more+30 -40 replies
35/35khugepagedinclude/linux/huge_mm.h include/linux/khugepaged.h include/linux/sched.h +2 more+1049 -70 replies

Reviews trailers per patch

All 35 patches have a Reviewed-by or Acked-by.

PatchRik van RielArnd BergmannChristoph LameterMel Gorman
1/35A-b A-b
2/35A-b
3/35A-b
4/35A-b A-b
5/35A-b A-b
6/35A-b A-b
7/35A-b A-b
8/35A-b A-b
9/35A-b A-b
10/35A-b A-b
11/35A-b A-b
12/35A-b A-b
13/35A-b
14/35A-b
15/35A-b
16/35A-b A-b
17/35A-b A-b
18/35A-b
19/35A-b R-b
20/35A-b
21/35A-b A-b
22/35A-b A-b
23/35A-b A-b
24/35A-b
25/35A-b
26/35A-b
27/35A-b
28/35A-b
29/35A-b
30/35A-b
31/35A-b
32/35A-b
33/35A-b
34/35A-b
35/35A-b

Trailers given in replies are filled; those carried in the patches from earlier versions are outlined with dashes. Scroll the table sideways for all 4 reviewers.

Read the v1 thread

Cover letter [patch 00/35] Transparent Hugepage support #12

This adds more commentary to khugepaged and it adds two defrag sysfs knobs:

find /sys/ -name defrag /sys/kernel/mm/transparent_hugepage/defrag /sys/kernel/mm/transparent_hugepage/khugepaged/defrag

find /sys/ -name defrag -exec cat {} \;
always [madvise] never
[yes] no

This should also fix memcg khugepaged accounting (thanks Kame).

I folded the page_anon_vma patch into transparent_hugepage. It was however good idea to keep it separated first time around IMHO to make reviewing of the changes feasible (it's still there to review on the list in the #11 submit if others wants to review).

Let me know if something else is needed to merge into -mm.

After that we can start to call memory compaction in alloc_hugepage(int defrag) if defrag == 1.

Thanks!
Andrea

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Read the cover letter in its thread