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Message-ID: <20100717174343.GA5852@random.random> Date: Sat, 17 Jul 2010 19:43:43 +0200 From: Andrea Arcangeli <aarcange@...hat.com> To: linux-mm@...ck.org, Andrew Morton <akpm@...ux-foundation.org>, linux-kernel@...r.kernel.org Cc: Marcelo Tosatti <mtosatti@...hat.com>, Adam Litke <agl@...ibm.com>, Avi Kivity <avi@...hat.com>, Izik Eidus <ieidus@...hat.com>, Hugh Dickins <hugh.dickins@...cali.co.uk>, Nick Piggin <npiggin@...e.de>, Rik van Riel <riel@...hat.com>, Mel Gorman <mel@....ul.ie>, Dave Hansen <dave@...ux.vnet.ibm.com>, Benjamin Herrenschmidt <benh@...nel.crashing.org>, Ingo Molnar <mingo@...e.hu>, Mike Travis <travis@....com>, KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>, Christoph Lameter <cl@...ux-foundation.org>, Chris Wright <chrisw@...s-sol.org>, bpicco@...hat.com, KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>, Balbir Singh <balbir@...ux.vnet.ibm.com>, "Michael S. Tsirkin" <mst@...hat.com>, Peter Zijlstra <peterz@...radead.org>, Johannes Weiner <hannes@...xchg.org>, Daisuke Nishimura <nishimura@....nes.nec.co.jp>, Chris Mason <chris.mason@...cle.com>, Borislav Petkov <bp@...en8.de> Subject: Transparent Hugepage Support #28 http://git.kernel.org/?p=linux/kernel/git/andrea/aa.git;a=shortlog first: git clone git://git.kernel.org/pub/scm/linux/kernel/git/andrea/aa.git or first: git clone --reference linux-2.6 git://git.kernel.org/pub/scm/linux/kernel/git/andrea/aa.git later: git fetch; git checkout -f origin/master The tree is rebased and git pull won't work. http://www.kernel.org/pub/linux/kernel/people/andrea/patches/v2.6/2.6.35-rc5/transparent_hugepage-28/ http://www.kernel.org/pub/linux/kernel/people/andrea/patches/v2.6/2.6.35-rc5/transparent_hugepage-28.gz Diff #27 -> #28: kvm-huge-spte-wrprotect | 48 ++++++++ Fix guest corruption with no EPT and no NPT, when THP runs in guest, and the same hugepage is mapped by two different huge spte wrprotected. kvm-mmu-notifier-huge-spte | 29 ++++ Fix host corruption when THP runs on host, an off by one error was making mmu notifier handler useless for mmu notifier for certain gfn. mmu_notifier_test_young | 265 +++++++++++++++++++++++++++++++++++++++++++++ Fix khugepaged young bit check to be reliable (testing pte not enough, gup-fast must set SetPageReferenced like gup does, and we need to test PageReferenced in addition to the spte young bit on the implementations with a young bit set in spte by hardware). Without this khugepaged may get not effective as it should in collapsing huge pages after a low-memory condition of the VM with KVM (only KVM or other mmu notifier users were affected as normally after direct-io with gup-fast the main cpu is going to touch the data anyway through the pte, but with secondary mmus the primary mmu may never touch the data again). Full diff: Documentation/vm/transhuge.txt | 283 ++++ arch/alpha/include/asm/mman.h | 2 arch/mips/include/asm/mman.h | 2 arch/parisc/include/asm/mman.h | 2 arch/powerpc/mm/gup.c | 12 arch/x86/include/asm/kvm_host.h | 1 arch/x86/include/asm/paravirt.h | 23 arch/x86/include/asm/paravirt_types.h | 6 arch/x86/include/asm/pgtable-2level.h | 9 arch/x86/include/asm/pgtable-3level.h | 23 arch/x86/include/asm/pgtable.h | 149 ++ arch/x86/include/asm/pgtable_64.h | 28 arch/x86/include/asm/pgtable_types.h | 3 arch/x86/kernel/paravirt.c | 3 arch/x86/kernel/vm86_32.c | 1 arch/x86/kvm/mmu.c | 68 - arch/x86/kvm/paging_tmpl.h | 6 arch/x86/mm/gup.c | 28 arch/x86/mm/pgtable.c | 66 + arch/xtensa/include/asm/mman.h | 2 fs/Kconfig | 2 fs/exec.c | 44 fs/proc/meminfo.c | 14 fs/proc/page.c | 14 include/asm-generic/mman-common.h | 2 include/asm-generic/pgtable.h | 130 ++ include/linux/gfp.h | 14 include/linux/huge_mm.h | 143 ++ include/linux/khugepaged.h | 66 + include/linux/ksm.h | 20 include/linux/kvm_host.h | 4 include/linux/memory_hotplug.h | 14 include/linux/mm.h | 114 + include/linux/mm_inline.h | 13 include/linux/mm_types.h | 3 include/linux/mmu_notifier.h | 66 + include/linux/mmzone.h | 1 include/linux/page-flags.h | 36 include/linux/res_counter.h | 12 include/linux/rmap.h | 33 include/linux/sched.h | 1 include/linux/swap.h | 2 kernel/fork.c | 12 kernel/futex.c | 55 mm/Kconfig | 38 mm/Makefile | 1 mm/compaction.c | 15 mm/huge_memory.c | 2184 ++++++++++++++++++++++++++++++++++ mm/hugetlb.c | 69 - mm/ksm.c | 80 - mm/madvise.c | 8 mm/memcontrol.c | 167 +- mm/memory-failure.c | 2 mm/memory.c | 241 +++ mm/memory_hotplug.c | 14 mm/mempolicy.c | 14 mm/migrate.c | 22 mm/mincore.c | 7 mm/mmap.c | 57 mm/mmu_notifier.c | 20 mm/mprotect.c | 20 mm/mremap.c | 8 mm/page_alloc.c | 31 mm/pagewalk.c | 1 mm/rmap.c | 228 ++- mm/sparse.c | 4 mm/swap.c | 117 + mm/swap_state.c | 6 mm/swapfile.c | 2 mm/vmscan.c | 56 mm/vmstat.c | 3 virt/kvm/iommu.c | 2 virt/kvm/kvm_main.c | 56 73 files changed, 4507 insertions(+), 498 deletions(-) -- 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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