Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755120Ab0LQROM (ORCPT ); Fri, 17 Dec 2010 12:14:12 -0500 Received: from mail-pw0-f46.google.com ([209.85.160.46]:62680 "EHLO mail-pw0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755033Ab0LQROK (ORCPT ); Fri, 17 Dec 2010 12:14:10 -0500 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=from:to:cc:subject:date:message-id:x-mailer:in-reply-to:references; b=cFdFkWjGFbfQg+uW5UhdQO2phxKFx8b90hTOb1JsPaS9JyvCK0UuathDHbOQ5s3YtD 2sFlfNGZLKFpl6coJ5dGPbbiUmX1gaGZQcPWqDHp7DvxNOxgjKQDMn09IOFwA0bmmobP UPTs3rh/6Y9kJtVLMduMYU58HtE4FPKeMjcI8= From: Minchan Kim To: Andrew Morton Cc: linux-mm , LKML , Minchan Kim Subject: [RFC 4/5] swap: Remove unnecessary page release Date: Sat, 18 Dec 2010 02:13:39 +0900 Message-Id: <7b8f65cb0e08556bdb48c459cb1f72500f6aa61d.1292604746.git.minchan.kim@gmail.com> X-Mailer: git-send-email 1.7.0.4 In-Reply-To: References: In-Reply-To: References: Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1047 Lines: 31 This patch series changes remove_from_page_cache's page ref counting rule. page cache ref count is decreased in remove_from_page_cache. So we don't need call again in caller context. Cc:Hugh Dickins Cc: linux-mm@kvack.org Signed-off-by: Minchan Kim --- mm/shmem.c | 1 - 1 files changed, 0 insertions(+), 1 deletions(-) diff --git a/mm/shmem.c b/mm/shmem.c index fa9acc9..16800f2 100644 --- a/mm/shmem.c +++ b/mm/shmem.c @@ -1091,7 +1091,6 @@ static int shmem_writepage(struct page *page, struct writeback_control *wbc) spin_unlock(&info->lock); swap_shmem_alloc(swap); BUG_ON(page_mapped(page)); - page_cache_release(page); /* pagecache ref */ swap_writepage(page, wbc); if (inode) { mutex_lock(&shmem_swaplist_mutex); -- 1.7.0.4 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/