From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pb0-f48.google.com ([209.85.160.48]:35986 "EHLO mail-pb0-f48.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754158AbaFXPBb (ORCPT ); Tue, 24 Jun 2014 11:01:31 -0400 From: Sergey Senozhatsky To: Chris Mason Cc: Josef Bacik , linux-btrfs@vger.kernel.org, linux-kernel@vger.kernel.org, Sergey Senozhatsky Subject: [PATCH] btrfs compression: reuse recently used workspace Date: Wed, 25 Jun 2014 00:00:44 +0900 Message-Id: <1403622044-2964-2-git-send-email-sergey.senozhatsky@gmail.com> In-Reply-To: <1403622044-2964-1-git-send-email-sergey.senozhatsky@gmail.com> References: <1403622044-2964-1-git-send-email-sergey.senozhatsky@gmail.com> Sender: linux-btrfs-owner@vger.kernel.org List-ID: Add compression `workspace' in free_workspace() to `idle_workspace' list head, instead of tail. So we have better chances to reuse most recently used `workspace'. Signed-off-by: Sergey Senozhatsky --- fs/btrfs/compression.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/btrfs/compression.c b/fs/btrfs/compression.c index 92371c4..1daea0b 100644 --- a/fs/btrfs/compression.c +++ b/fs/btrfs/compression.c @@ -821,7 +821,7 @@ static void free_workspace(int type, struct list_head *workspace) spin_lock(workspace_lock); if (*num_workspace < num_online_cpus()) { - list_add_tail(workspace, idle_workspace); + list_add(workspace, idle_workspace); (*num_workspace)++; spin_unlock(workspace_lock); goto wake; -- 2.0.0.548.ge727dec