From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from psmtp.com (na3sys010amx204.postini.com [74.125.245.204]) by kanga.kvack.org (Postfix) with SMTP id 73C8A6B00C3 for ; Fri, 5 Apr 2013 07:58:26 -0400 (EDT) From: "Kirill A. Shutemov" Subject: [PATCHv3, RFC 26/34] mm: add huge_fault() callback to vm_operations_struct Date: Fri, 5 Apr 2013 14:59:50 +0300 Message-Id: <1365163198-29726-27-git-send-email-kirill.shutemov@linux.intel.com> In-Reply-To: <1365163198-29726-1-git-send-email-kirill.shutemov@linux.intel.com> References: <1365163198-29726-1-git-send-email-kirill.shutemov@linux.intel.com> Sender: owner-linux-mm@kvack.org List-ID: To: Andrea Arcangeli , Andrew Morton Cc: Al Viro , Hugh Dickins , Wu Fengguang , Jan Kara , Mel Gorman , linux-mm@kvack.org, Andi Kleen , Matthew Wilcox , "Kirill A. Shutemov" , Hillf Danton , Dave Hansen , linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, "Kirill A. Shutemov" From: "Kirill A. Shutemov" 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 --- 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: email@kvack.org