From: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com> To: Andrea Arcangeli <aarcange@redhat.com>, Andrew Morton <akpm@linux-foundation.org> Cc: Al Viro <viro@zeniv.linux.org.uk>, Hugh Dickins <hughd@google.com>, Wu Fengguang <fengguang.wu@intel.com>, Jan Kara <jack@suse.cz>, Mel Gorman <mgorman@suse.de>, linux-mm@kvack.org, Andi Kleen <ak@linux.intel.com>, Matthew Wilcox <matthew.r.wilcox@intel.com>, "Kirill A. Shutemov" <kirill@shutemov.name>, Hillf Danton <dhillf@gmail.com>, Dave Hansen <dave@sr71.net>, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com> Subject: [PATCHv3, RFC 26/34] mm: add huge_fault() callback to vm_operations_struct Date: Fri, 5 Apr 2013 14:59:50 +0300 [thread overview] Message-ID: <1365163198-29726-27-git-send-email-kirill.shutemov@linux.intel.com> (raw) In-Reply-To: <1365163198-29726-1-git-send-email-kirill.shutemov@linux.intel.com> From: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com> huge_fault() should try to setup huge page for the pgoff, if possbile. VM_FAULT_OOM return code means we need to fallback to small pages. Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> --- include/linux/mm.h | 1 + 1 file changed, 1 insertion(+) diff --git a/include/linux/mm.h b/include/linux/mm.h index 09530c7..d978de8 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -195,6 +195,7 @@ struct vm_operations_struct { void (*open)(struct vm_area_struct * area); void (*close)(struct vm_area_struct * area); int (*fault)(struct vm_area_struct *vma, struct vm_fault *vmf); + int (*huge_fault)(struct vm_area_struct *vma, struct vm_fault *vmf); /* notification that a previously read-only page is about to become * writable, if an error is returned it will cause a SIGBUS */ -- 1.7.10.4
WARNING: multiple messages have this Message-ID (diff)
From: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com> To: Andrea Arcangeli <aarcange@redhat.com>, Andrew Morton <akpm@linux-foundation.org> Cc: Al Viro <viro@zeniv.linux.org.uk>, Hugh Dickins <hughd@google.com>, Wu Fengguang <fengguang.wu@intel.com>, Jan Kara <jack@suse.cz>, Mel Gorman <mgorman@suse.de>, linux-mm@kvack.org, Andi Kleen <ak@linux.intel.com>, Matthew Wilcox <matthew.r.wilcox@intel.com>, "Kirill A. Shutemov" <kirill@shutemov.name>, Hillf Danton <dhillf@gmail.com>, Dave Hansen <dave@sr71.net>, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com> Subject: [PATCHv3, RFC 26/34] mm: add huge_fault() callback to vm_operations_struct Date: Fri, 5 Apr 2013 14:59:50 +0300 [thread overview] Message-ID: <1365163198-29726-27-git-send-email-kirill.shutemov@linux.intel.com> (raw) In-Reply-To: <1365163198-29726-1-git-send-email-kirill.shutemov@linux.intel.com> From: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com> huge_fault() should try to setup huge page for the pgoff, if possbile. VM_FAULT_OOM return code means we need to fallback to small pages. Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> --- include/linux/mm.h | 1 + 1 file changed, 1 insertion(+) diff --git a/include/linux/mm.h b/include/linux/mm.h index 09530c7..d978de8 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -195,6 +195,7 @@ struct vm_operations_struct { void (*open)(struct vm_area_struct * area); void (*close)(struct vm_area_struct * area); int (*fault)(struct vm_area_struct *vma, struct vm_fault *vmf); + int (*huge_fault)(struct vm_area_struct *vma, struct vm_fault *vmf); /* notification that a previously read-only page is about to become * writable, if an error is returned it will cause a SIGBUS */ -- 1.7.10.4 -- 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: <a href=mailto:"dont@kvack.org"> email@kvack.org </a>
next prev parent reply other threads:[~2013-04-05 12:03 UTC|newest] Thread overview: 110+ messages / expand[flat|nested] mbox.gz Atom feed top 2013-04-05 11:59 [PATCHv3, RFC 00/34] Transparent huge page cache Kirill A. Shutemov 2013-04-05 11:59 ` Kirill A. Shutemov 2013-04-05 11:59 ` [PATCHv3, RFC 01/34] mm: drop actor argument of do_generic_file_read() Kirill A. Shutemov 2013-04-05 11:59 ` Kirill A. Shutemov 2013-04-05 11:59 ` [PATCHv3, RFC 02/34] block: implement add_bdi_stat() Kirill A. Shutemov 2013-04-05 11:59 ` Kirill A. Shutemov 2013-04-05 11:59 ` [PATCHv3, RFC 03/34] mm: implement zero_huge_user_segment and friends Kirill A. Shutemov 2013-04-05 11:59 ` Kirill A. Shutemov 2013-04-05 11:59 ` [PATCHv3, RFC 04/34] radix-tree: implement preload for multiple contiguous elements Kirill A. Shutemov 2013-04-05 11:59 ` Kirill A. Shutemov 2013-04-05 11:59 ` [PATCHv3, RFC 05/34] memcg, thp: charge huge cache pages Kirill A. Shutemov 2013-04-05 11:59 ` Kirill A. Shutemov 2013-04-05 11:59 ` [PATCHv3, RFC 06/34] thp, mm: avoid PageUnevictable on active/inactive lru lists Kirill A. Shutemov 2013-04-05 11:59 ` Kirill A. Shutemov 2013-04-05 11:59 ` [PATCHv3, RFC 07/34] thp, mm: basic defines for transparent huge page cache Kirill A. Shutemov 2013-04-05 11:59 ` Kirill A. Shutemov 2013-04-05 11:59 ` [PATCHv3, RFC 08/34] thp, mm: introduce mapping_can_have_hugepages() predicate Kirill A. Shutemov 2013-04-05 11:59 ` Kirill A. Shutemov 2013-04-05 11:59 ` [PATCHv3, RFC 09/34] thp: represent file thp pages in meminfo and friends Kirill A. Shutemov 2013-04-05 11:59 ` Kirill A. Shutemov 2013-04-08 19:38 ` Dave Hansen 2013-04-08 19:38 ` Dave Hansen 2013-04-16 14:49 ` Kirill A. Shutemov 2013-04-16 14:49 ` Kirill A. Shutemov 2013-04-16 15:11 ` Dave Hansen 2013-04-16 15:11 ` Dave Hansen 2013-04-05 11:59 ` [PATCHv3, RFC 10/34] thp, mm: rewrite add_to_page_cache_locked() to support huge pages Kirill A. Shutemov 2013-04-05 11:59 ` Kirill A. Shutemov 2013-04-05 11:59 ` [PATCHv3, RFC 11/34] mm: trace filemap: dump page order Kirill A. Shutemov 2013-04-05 11:59 ` Kirill A. Shutemov 2013-04-05 11:59 ` [PATCHv3, RFC 12/34] thp, mm: rewrite delete_from_page_cache() to support huge pages Kirill A. Shutemov 2013-04-05 11:59 ` Kirill A. Shutemov 2013-04-05 11:59 ` [PATCHv3, RFC 13/34] thp, mm: trigger bug in replace_page_cache_page() on THP Kirill A. Shutemov 2013-04-05 11:59 ` Kirill A. Shutemov 2013-04-05 11:59 ` [PATCHv3, RFC 14/34] thp, mm: locking tail page is a bug Kirill A. Shutemov 2013-04-05 11:59 ` Kirill A. Shutemov 2013-04-05 11:59 ` [PATCHv3, RFC 15/34] thp, mm: handle tail pages in page_cache_get_speculative() Kirill A. Shutemov 2013-04-05 11:59 ` Kirill A. Shutemov 2013-04-05 11:59 ` [PATCHv3, RFC 16/34] thp, mm: add event counters for huge page alloc on write to a file Kirill A. Shutemov 2013-04-05 11:59 ` Kirill A. Shutemov 2013-04-05 11:59 ` [PATCHv3, RFC 17/34] thp, mm: implement grab_thp_write_begin() Kirill A. Shutemov 2013-04-05 11:59 ` Kirill A. Shutemov 2013-04-05 11:59 ` [PATCHv3, RFC 18/34] thp, mm: naive support of thp in generic read/write routines Kirill A. Shutemov 2013-04-05 11:59 ` Kirill A. Shutemov 2013-04-05 11:59 ` [PATCHv3, RFC 19/34] thp, libfs: initial support of thp in simple_read/write_begin/write_end Kirill A. Shutemov 2013-04-05 11:59 ` Kirill A. Shutemov 2013-04-05 11:59 ` [PATCHv3, RFC 20/34] thp: handle file pages in split_huge_page() Kirill A. Shutemov 2013-04-05 11:59 ` Kirill A. Shutemov 2013-04-05 11:59 ` [PATCHv3, RFC 21/34] thp: wait_split_huge_page(): serialize over i_mmap_mutex too Kirill A. Shutemov 2013-04-05 11:59 ` Kirill A. Shutemov 2013-04-05 11:59 ` [PATCHv3, RFC 22/34] thp, mm: truncate support for transparent huge page cache Kirill A. Shutemov 2013-04-05 11:59 ` Kirill A. Shutemov 2013-04-05 11:59 ` [PATCHv3, RFC 23/34] thp, mm: split huge page on mmap file page Kirill A. Shutemov 2013-04-05 11:59 ` Kirill A. Shutemov 2013-04-05 11:59 ` [PATCHv3, RFC 24/34] ramfs: enable transparent huge page cache Kirill A. Shutemov 2013-04-05 11:59 ` Kirill A. Shutemov 2013-04-05 11:59 ` [PATCHv3, RFC 25/34] x86-64, mm: proper alignment mappings with hugepages Kirill A. Shutemov 2013-04-05 11:59 ` Kirill A. Shutemov 2013-04-05 11:59 ` Kirill A. Shutemov [this message] 2013-04-05 11:59 ` [PATCHv3, RFC 26/34] mm: add huge_fault() callback to vm_operations_struct Kirill A. Shutemov 2013-04-05 11:59 ` [PATCHv3, RFC 27/34] thp: prepare zap_huge_pmd() to uncharge file pages Kirill A. Shutemov 2013-04-05 11:59 ` Kirill A. Shutemov 2013-04-05 11:59 ` [PATCHv3, RFC 28/34] thp: move maybe_pmd_mkwrite() out of mk_huge_pmd() Kirill A. Shutemov 2013-04-05 11:59 ` Kirill A. Shutemov 2013-04-05 11:59 ` [PATCHv3, RFC 29/34] thp, mm: basic huge_fault implementation for generic_file_vm_ops Kirill A. Shutemov 2013-04-05 11:59 ` Kirill A. Shutemov 2013-04-05 11:59 ` [PATCHv3, RFC 30/34] thp: extract fallback path from do_huge_pmd_anonymous_page() to a function Kirill A. Shutemov 2013-04-05 11:59 ` Kirill A. Shutemov 2013-04-05 11:59 ` [PATCHv3, RFC 31/34] thp: initial implementation of do_huge_linear_fault() Kirill A. Shutemov 2013-04-05 11:59 ` Kirill A. Shutemov 2013-04-08 18:46 ` Dave Hansen 2013-04-08 18:46 ` Dave Hansen 2013-04-08 18:52 ` Dave Hansen 2013-04-08 18:52 ` Dave Hansen 2013-04-17 14:38 ` Kirill A. Shutemov 2013-04-17 14:38 ` Kirill A. Shutemov 2013-04-17 22:07 ` Dave Hansen 2013-04-18 16:09 ` Kirill A. Shutemov 2013-04-18 16:09 ` Kirill A. Shutemov 2013-04-18 16:19 ` Kirill A. Shutemov 2013-04-18 16:19 ` Kirill A. Shutemov 2013-04-18 16:19 ` Kirill A. Shutemov 2013-04-18 16:20 ` Dave Hansen 2013-04-18 16:20 ` Dave Hansen 2013-04-18 16:38 ` Kirill A. Shutemov 2013-04-18 16:38 ` Kirill A. Shutemov 2013-04-18 16:42 ` Dave Hansen 2013-04-18 16:42 ` Dave Hansen 2013-04-05 11:59 ` [PATCHv3, RFC 32/34] thp: handle write-protect exception to file-backed huge pages Kirill A. Shutemov 2013-04-05 11:59 ` Kirill A. Shutemov 2013-04-08 19:07 ` Dave Hansen 2013-04-08 19:07 ` Dave Hansen 2013-04-26 15:31 ` Kirill A. Shutemov 2013-04-26 15:31 ` Kirill A. Shutemov 2013-04-05 11:59 ` [PATCHv3, RFC 33/34] thp: call __vma_adjust_trans_huge() for file-backed VMA Kirill A. Shutemov 2013-04-05 11:59 ` Kirill A. Shutemov 2013-04-05 11:59 ` [PATCHv3, RFC 34/34] thp: map file-backed huge pages on fault Kirill A. Shutemov 2013-04-05 11:59 ` Kirill A. Shutemov 2013-04-07 0:40 ` [PATCHv3, RFC 00/34] Transparent huge page cache Ric Mason 2013-04-07 0:40 ` Ric Mason 2013-04-15 16:02 ` IOZone with transparent " Kirill A. Shutemov 2013-04-15 16:02 ` Kirill A. Shutemov 2013-04-15 18:17 ` [RESEND] " Kirill A. Shutemov 2013-04-15 18:17 ` Kirill A. Shutemov 2013-04-15 23:19 ` Dave Hansen 2013-04-15 23:19 ` Dave Hansen 2013-04-16 5:57 ` Kirill A. Shutemov 2013-04-16 5:57 ` Kirill A. Shutemov 2013-04-16 6:11 ` Dave Hansen 2013-04-16 6:11 ` Dave Hansen
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