From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from psmtp.com (na3sys010amx171.postini.com [74.125.245.171]) by kanga.kvack.org (Postfix) with SMTP id B93316B0062 for ; Sat, 11 May 2013 21:21:38 -0400 (EDT) From: "Kirill A. Shutemov" Subject: [PATCHv4 26/39] ramfs: enable transparent huge page cache Date: Sun, 12 May 2013 04:23:23 +0300 Message-Id: <1368321816-17719-27-git-send-email-kirill.shutemov@linux.intel.com> In-Reply-To: <1368321816-17719-1-git-send-email-kirill.shutemov@linux.intel.com> References: <1368321816-17719-1-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" ramfs is the most simple fs from page cache point of view. Let's start transparent huge page cache enabling here. For now we allocate only non-movable huge page. ramfs pages cannot be moved yet. Signed-off-by: Kirill A. Shutemov --- fs/ramfs/inode.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/fs/ramfs/inode.c b/fs/ramfs/inode.c index c24f1e1..54d69c7 100644 --- a/fs/ramfs/inode.c +++ b/fs/ramfs/inode.c @@ -61,7 +61,11 @@ struct inode *ramfs_get_inode(struct super_block *sb, inode_init_owner(inode, dir, mode); inode->i_mapping->a_ops = &ramfs_aops; inode->i_mapping->backing_dev_info = &ramfs_backing_dev_info; - mapping_set_gfp_mask(inode->i_mapping, GFP_HIGHUSER); + /* + * TODO: make ramfs pages movable + */ + mapping_set_gfp_mask(inode->i_mapping, + GFP_TRANSHUGE & ~__GFP_MOVABLE); mapping_set_unevictable(inode->i_mapping); inode->i_atime = inode->i_mtime = inode->i_ctime = CURRENT_TIME; switch (mode & S_IFMT) { -- 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