From: Matthew Wilcox <willy@xxxxxxxxxxxxxxx> This patchset, on top of the v11 DAX patchset I posted recently, adds support for transparent huge pages. In-memory databases and HPC apps are particularly fond of using huge pages for their massive data sets. The actual DAX code here is not how I want it to be, for example it will allocate on read-faults instead of using zero pages to fill until we have a write fault (which is going to prove tricky without at least some of Kirill's patches for supporting huge pages in the page cache). I'm posting this for review now since I clearly don't understand the Linux MM very well and I'm expecting to be told I've done all the huge memory bits wrongly :-) I'd like to thank Kirill for all his helpful suggestions ... I may not have taken all of them, but this would be in a lot worse shape without him. The first patch is from Kirill's patchset to allow huge pages in the page cache. Patches 2-4 are the ones that touch the MM and I'd really like reviewed. Patch 5 is the DAX code that is easily critiqued, and patches 6 & 7 are very boring, just hooking up the dax-hugepage code to ext2 & ext4. Kirill A. Shutemov (1): thp: vma_adjust_trans_huge(): adjust file-backed VMA too Matthew Wilcox (6): mm: Prepare for DAX huge pages mm: Add vm_insert_pfn_pmd() mm: Add a pmd_fault handler dax: Add huge page fault support ext2: Huge page fault support ext4: Huge page fault support Documentation/filesystems/dax.txt | 7 +- arch/x86/include/asm/pgtable.h | 10 +++ fs/dax.c | 133 ++++++++++++++++++++++++++++++++++++++ fs/ext2/file.c | 9 ++- fs/ext4/file.c | 9 ++- include/linux/fs.h | 2 + include/linux/huge_mm.h | 11 +--- include/linux/mm.h | 4 ++ mm/huge_memory.c | 53 +++++++++------ mm/memory.c | 63 ++++++++++++++++-- 10 files changed, 262 insertions(+), 39 deletions(-) -- 2.1.0 -- To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
