Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751803AbdITPdZ (ORCPT ); Wed, 20 Sep 2017 11:33:25 -0400 Received: from mail-io0-f173.google.com ([209.85.223.173]:47510 "EHLO mail-io0-f173.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751709AbdITPdU (ORCPT ); Wed, 20 Sep 2017 11:33:20 -0400 X-Google-Smtp-Source: AOwi7QDw2uC3I+Hy6QgZH5joI04qcrWUgVwUAOkPN9acKa0/mdp+GrlQ7NQ/rMvSja24H2/ZPoM5QQ== From: Jens Axboe To: linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-mm@kvack.org Cc: hannes@cmpxchg.org, clm@fb.com, jack@suse.cz, Jens Axboe Subject: [PATCH 1/7] buffer: cleanup free_more_memory() flusher wakeup Date: Wed, 20 Sep 2017 09:32:56 -0600 Message-Id: <1505921582-26709-2-git-send-email-axboe@kernel.dk> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1505921582-26709-1-git-send-email-axboe@kernel.dk> References: <1505921582-26709-1-git-send-email-axboe@kernel.dk> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 833 Lines: 28 This whole function is... interesting. Change the wakeup call to the flusher threads to pass in nr_pages == 0, instead of some random number of pages. This matches more closely what similar cases do for memory shortage/reclaim. Acked-by: Johannes Weiner Tested-by: Chris Mason Reviewed-by: Jan Kara Signed-off-by: Jens Axboe --- fs/buffer.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/buffer.c b/fs/buffer.c index 170df856bdb9..9471a445e370 100644 --- a/fs/buffer.c +++ b/fs/buffer.c @@ -260,7 +260,7 @@ static void free_more_memory(void) struct zoneref *z; int nid; - wakeup_flusher_threads(1024, WB_REASON_FREE_MORE_MEM); + wakeup_flusher_threads(0, WB_REASON_FREE_MORE_MEM); yield(); for_each_online_node(nid) { -- 2.7.4