From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pa0-f53.google.com (mail-pa0-f53.google.com [209.85.220.53]) by kanga.kvack.org (Postfix) with ESMTP id 462776B0080 for ; Wed, 8 Oct 2014 09:25:44 -0400 (EDT) Received: by mail-pa0-f53.google.com with SMTP id kq14so9119856pab.12 for ; Wed, 08 Oct 2014 06:25:43 -0700 (PDT) Received: from mga01.intel.com (mga01.intel.com. [192.55.52.88]) by mx.google.com with ESMTP id c8si18124511pat.196.2014.10.08.06.25.42 for ; Wed, 08 Oct 2014 06:25:42 -0700 (PDT) From: Matthew Wilcox Subject: [PATCH v1 0/7] Huge page support for DAX Date: Wed, 8 Oct 2014 09:25:22 -0400 Message-Id: <1412774729-23956-1-git-send-email-matthew.r.wilcox@intel.com> Sender: owner-linux-mm@kvack.org List-ID: To: linux-fsdevel@vger.kernel.org, linux-kernel@vger.krenel.org, linux-mm@kvack.org Cc: Matthew Wilcox From: Matthew Wilcox 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, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org