From patchwork Mon Nov 5 01:30:47 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: NeilBrown X-Patchwork-Id: 10667215 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 9ED4715E9 for ; Mon, 5 Nov 2018 01:31:58 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 8C71E2947B for ; Mon, 5 Nov 2018 01:31:58 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 80CE4294BF; Mon, 5 Nov 2018 01:31:58 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 368AE2947B for ; Mon, 5 Nov 2018 01:31:58 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727255AbeKEKs6 (ORCPT ); Mon, 5 Nov 2018 05:48:58 -0500 Received: from mx2.suse.de ([195.135.220.15]:60516 "EHLO mx1.suse.de" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1726494AbeKEKs6 (ORCPT ); Mon, 5 Nov 2018 05:48:58 -0500 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.220.254]) by mx1.suse.de (Postfix) with ESMTP id B06BBAFD9; Mon, 5 Nov 2018 01:31:50 +0000 (UTC) From: NeilBrown To: Jeff Layton , Alexander Viro Date: Mon, 05 Nov 2018 12:30:47 +1100 Subject: [PATCH 02/12] fs/locks: split out __locks_wake_up_blocks(). Cc: "J. Bruce Fields" , Martin Wilck , linux-fsdevel@vger.kernel.org, Frank Filz , linux-kernel@vger.kernel.org Message-ID: <154138144771.31651.18079026007633099253.stgit@noble> In-Reply-To: <154138128401.31651.1381177427603557514.stgit@noble> References: <154138128401.31651.1381177427603557514.stgit@noble> User-Agent: StGit/0.17.1-dirty MIME-Version: 1.0 Sender: linux-fsdevel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-fsdevel@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP This functionality will be useful in future patches, so split it out from locks_wake_up_blocks(). Signed-off-by: NeilBrown --- fs/locks.c | 27 ++++++++++++++++----------- 1 file changed, 16 insertions(+), 11 deletions(-) diff --git a/fs/locks.c b/fs/locks.c index a6c6d601286c..b8f33792a0a6 100644 --- a/fs/locks.c +++ b/fs/locks.c @@ -672,6 +672,21 @@ static void __locks_delete_block(struct file_lock *waiter) waiter->fl_blocker = NULL; } +static void __locks_wake_up_blocks(struct file_lock *blocker) +{ + while (!list_empty(&blocker->fl_blocked)) { + struct file_lock *waiter; + + waiter = list_first_entry(&blocker->fl_blocked, + struct file_lock, fl_block); + __locks_delete_block(waiter); + if (waiter->fl_lmops && waiter->fl_lmops->lm_notify) + waiter->fl_lmops->lm_notify(waiter); + else + wake_up(&waiter->fl_wait); + } +} + static void locks_delete_block(struct file_lock *waiter) { spin_lock(&blocked_lock_lock); @@ -726,17 +741,7 @@ static void locks_wake_up_blocks(struct file_lock *blocker) return; spin_lock(&blocked_lock_lock); - while (!list_empty(&blocker->fl_blocked)) { - struct file_lock *waiter; - - waiter = list_first_entry(&blocker->fl_blocked, - struct file_lock, fl_block); - __locks_delete_block(waiter); - if (waiter->fl_lmops && waiter->fl_lmops->lm_notify) - waiter->fl_lmops->lm_notify(waiter); - else - wake_up(&waiter->fl_wait); - } + __locks_wake_up_blocks(blocker); spin_unlock(&blocked_lock_lock); }