On Mon 23-01-17 16:47:18, Dave Jiang wrote: > The following series implements support for 1G trasparent hugepage on > x86 for device dax. The bulk of the code was written by Mathew Wilcox > a while back supporting transparent 1G hugepage for fs DAX. I have > forward ported the relevant bits to 4.10-rc. The current submission has > only the necessary code to support device DAX. Well, you should really explain why do we want this functionality... Is anybody going to use it? Why would he want to and what will he gain by doing so? Because so far I haven't heard of a convincing usecase. Honza > > --- > > Dave Jiang (1): > dax: Support for transparent PUD pages for device DAX > > Matthew Wilcox (2): > mm,fs,dax: Change ->pmd_fault to ->huge_fault > mm,x86: Add support for PUD-sized transparent hugepages > > > arch/Kconfig | 3 > arch/x86/Kconfig | 1 > arch/x86/include/asm/paravirt.h | 11 + > arch/x86/include/asm/paravirt_types.h | 2 > arch/x86/include/asm/pgtable-2level.h | 17 ++ > arch/x86/include/asm/pgtable-3level.h | 24 +++ > arch/x86/include/asm/pgtable.h | 145 +++++++++++++++++++ > arch/x86/include/asm/pgtable_64.h | 15 ++ > arch/x86/kernel/paravirt.c | 1 > arch/x86/mm/pgtable.c | 31 ++++ > drivers/dax/dax.c | 82 ++++++++--- > fs/dax.c | 43 ++++-- > fs/ext2/file.c | 2 > fs/ext4/file.c | 6 - > fs/xfs/xfs_file.c | 10 + > fs/xfs/xfs_trace.h | 2 > include/asm-generic/pgtable.h | 75 +++++++++- > include/asm-generic/tlb.h | 14 ++ > include/linux/dax.h | 6 - > include/linux/huge_mm.h | 83 ++++++++++- > include/linux/mm.h | 40 +++++ > include/linux/mmu_notifier.h | 14 ++ > include/linux/pfn_t.h | 8 + > mm/gup.c | 7 + > mm/huge_memory.c | 249 +++++++++++++++++++++++++++++++++ > mm/memory.c | 102 ++++++++++++-- > mm/pagewalk.c | 20 +++ > mm/pgtable-generic.c | 14 ++ > 28 files changed, 952 insertions(+), 75 deletions(-) > -- Jan Kara <jack@xxxxxxxx> SUSE Labs, CR -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>
