Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756189Ab2BCNXS (ORCPT ); Fri, 3 Feb 2012 08:23:18 -0500 Received: from mail-pw0-f46.google.com ([209.85.160.46]:51538 "EHLO mail-pw0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753848Ab2BCNXR (ORCPT ); Fri, 3 Feb 2012 08:23:17 -0500 From: Amit Sahrawat To: Wu Fengguang , Jan Kara , Andrew Morton , Peter Zijlstra , Johannes Weiner Cc: Amit Sahrawat , linux-mm@kvack.org, linux-kernel@vger.kernel.org, Amit Sahrawat Subject: [PATCH 2/2] mm: make do_writepages() use plugging Date: Fri, 3 Feb 2012 18:57:06 +0530 Message-Id: <1328275626-5322-1-git-send-email-amit.sahrawat83@gmail.com> X-Mailer: git-send-email 1.7.2.3 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1056 Lines: 39 This will cover all the invocations for writepages to be called with plugging support. Signed-off-by: Amit Sahrawat --- mm/page-writeback.c | 4 ++++ 1 files changed, 4 insertions(+), 0 deletions(-) diff --git a/mm/page-writeback.c b/mm/page-writeback.c index 363ba70..2bea32c 100644 --- a/mm/page-writeback.c +++ b/mm/page-writeback.c @@ -1866,14 +1866,18 @@ EXPORT_SYMBOL(generic_writepages); int do_writepages(struct address_space *mapping, struct writeback_control *wbc) { + struct blk_plug plug; int ret; if (wbc->nr_to_write <= 0) return 0; + + blk_start_plug(&plug); if (mapping->a_ops->writepages) ret = mapping->a_ops->writepages(mapping, wbc); else ret = generic_writepages(mapping, wbc); + blk_finish_plug(&plug); return ret; } -- 1.7.2.3 -- 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/