From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Cyrus-Session-Id: sloti22d1t05-288557-1516221125-2-8350538641163011631 X-Sieve: CMU Sieve 3.0 X-Spam-known-sender: no X-Spam-score: 0.0 X-Spam-hits: BAYES_00 -1.9, HEADER_FROM_DIFFERENT_DOMAINS 0.25, RCVD_IN_DNSWL_HI -5, T_RP_MATCHES_RCVD -0.01, LANGUAGES enrosk.us-ascii, BAYES_USED global, SA_VERSION 3.4.0 X-Spam-source: IP='209.132.180.67', Host='vger.kernel.org', Country='US', FromHeader='org', MailFrom='org' X-Spam-charsets: X-Resolved-to: greg@kroah.com X-Delivered-to: greg@kroah.com X-Mail-from: linux-usb-owner@vger.kernel.org ARC-Seal: i=1; a=rsa-sha256; cv=none; d=messagingengine.com; s=arctest; t=1516221124; b=q66ZcixN9gQoVW1+My4SiBXS2lXqCKwI17eNW/Q2d3Lw2um 9eYSP8NCMXR1IQ9AH7QaR1iJBNvhDSvzaGo4ABHzrSQ41FXuaJda4Rvns9yzSYUV 6XYMqOGLvdCSLvO+cU+/dg/6qJkLCtcFPsFgjBEEZJzMzh8KOHqmHthgotHevpBj M3/DmO+sGUNFoh/mZ2vA04Gg3Gm5e1KsLGw6vRH+pQeEpkCyecFYmmED6hOuGv/E GZOL7Vok0XLLm7Rs8ArbmHe1uL1FO3xj0KJ/PuS+ww0n/hD9y09r4OXMBgH+D+oo Xy5v4HXNu7lBphqU1u7f5fLK49IikgvtGP6AneA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=from:to:cc:subject:date:message-id :in-reply-to:references:sender:list-id; s=arctest; t=1516221124; bh=IBOa84npASrS5xbf6u7dFTlhwZT4gQVw3XCbrt84PUo=; b=iBVsz1o9/yZr ZVJJWtizCOku2NrTPE44Z2t80O8VB3m/zJ6QhH3sFec5HwwPjjcGDSu0/I2xFrgd +2yJRbe1jEdUcOxGOh3oZoEXtSHXO/3baO8dJ5YxFinMAIm8CqBuXlTjLvs7dqRj ixCwiAxq4hg2sZzEI0y6oMIdLBvlCbn7ZuOSjIJDDaj+sC1UZTsO1IVk5MIWLzy2 Z5SmiZCBZyVmZ4stmuqI871UxPF4yIqXWxn63r3lsaDC5Wkl8Xim3dxNS5l9z5vr 5fx97JAhCnILxkARo65eSRJDUsMR1OQEc2Q5xz2hOPAoQ8lPI8qISCp6Tf747u5d uAl6Az5Bew== ARC-Authentication-Results: i=1; mx4.messagingengine.com; arc=none (no signatures found); dkim=fail (message has been altered; 2048-bit rsa key sha256) header.d=infradead.org header.i=@infradead.org header.b=USgQ/shJ x-bits=2048 x-keytype=rsa x-algorithm=sha256 x-selector=bombadil.20170209; dmarc=none (p=none,has-list-id=yes,d=none) header.from=infradead.org; iprev=pass policy.iprev=209.132.180.67 (vger.kernel.org); spf=none smtp.mailfrom=linux-usb-owner@vger.kernel.org smtp.helo=vger.kernel.org; x-aligned-from=fail; x-ptr=pass x-ptr-helo=vger.kernel.org x-ptr-lookup=vger.kernel.org; x-return-mx=pass smtp.domain=vger.kernel.org smtp.result=pass smtp_org.domain=kernel.org smtp_org.result=pass smtp_is_org_domain=no header.domain=infradead.org header.result=pass header_is_org_domain=yes Authentication-Results: mx4.messagingengine.com; arc=none (no signatures found); dkim=fail (message has been altered; 2048-bit rsa key sha256) header.d=infradead.org header.i=@infradead.org header.b=USgQ/shJ x-bits=2048 x-keytype=rsa x-algorithm=sha256 x-selector=bombadil.20170209; dmarc=none (p=none,has-list-id=yes,d=none) header.from=infradead.org; iprev=pass policy.iprev=209.132.180.67 (vger.kernel.org); spf=none smtp.mailfrom=linux-usb-owner@vger.kernel.org smtp.helo=vger.kernel.org; x-aligned-from=fail; x-ptr=pass x-ptr-helo=vger.kernel.org x-ptr-lookup=vger.kernel.org; x-return-mx=pass smtp.domain=vger.kernel.org smtp.result=pass smtp_org.domain=kernel.org smtp_org.result=pass smtp_is_org_domain=no header.domain=infradead.org header.result=pass header_is_org_domain=yes Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932151AbeAQUbg (ORCPT ); Wed, 17 Jan 2018 15:31:36 -0500 Received: from bombadil.infradead.org ([65.50.211.133]:37633 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753988AbeAQUXC (ORCPT ); Wed, 17 Jan 2018 15:23:02 -0500 From: Matthew Wilcox To: linux-kernel@vger.kernel.org Cc: Matthew Wilcox , linux-mm@kvack.org, linux-fsdevel@vger.kernel.org, linux-f2fs-devel@lists.sourceforge.net, linux-nilfs@vger.kernel.org, linux-btrfs@vger.kernel.org, linux-xfs@vger.kernel.org, linux-usb@vger.kernel.org, Bjorn Andersson , Stefano Stabellini , iommu@lists.linux-foundation.org, linux-remoteproc@vger.kernel.org, linux-s390@vger.kernel.org, intel-gfx@lists.freedesktop.org, cgroups@vger.kernel.org, linux-sh@vger.kernel.org, David Howells Subject: [PATCH v6 85/99] btrfs: Remove unused spinlock Date: Wed, 17 Jan 2018 12:21:49 -0800 Message-Id: <20180117202203.19756-86-willy@infradead.org> X-Mailer: git-send-email 2.14.3 In-Reply-To: <20180117202203.19756-1-willy@infradead.org> References: <20180117202203.19756-1-willy@infradead.org> Sender: linux-usb-owner@vger.kernel.org X-Mailing-List: linux-usb@vger.kernel.org X-getmail-retrieved-from-mailbox: INBOX X-Mailing-List: linux-kernel@vger.kernel.org List-ID: From: Matthew Wilcox The reada_lock in struct btrfs_device was only initialised, and not actually used. That's good because there's another lock also called reada_lock in the btrfs_fs_info that was quite heavily used. Remove this one. Signed-off-by: Matthew Wilcox --- fs/btrfs/volumes.c | 1 - fs/btrfs/volumes.h | 1 - 2 files changed, 2 deletions(-) diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c index a25684287501..cba286183ff9 100644 --- a/fs/btrfs/volumes.c +++ b/fs/btrfs/volumes.c @@ -244,7 +244,6 @@ static struct btrfs_device *__alloc_device(void) spin_lock_init(&dev->io_lock); - spin_lock_init(&dev->reada_lock); atomic_set(&dev->reada_in_flight, 0); atomic_set(&dev->dev_stats_ccnt, 0); btrfs_device_data_ordered_init(dev); diff --git a/fs/btrfs/volumes.h b/fs/btrfs/volumes.h index ff15208344a7..335fd1590458 100644 --- a/fs/btrfs/volumes.h +++ b/fs/btrfs/volumes.h @@ -136,7 +136,6 @@ struct btrfs_device { struct work_struct rcu_work; /* readahead state */ - spinlock_t reada_lock; atomic_t reada_in_flight; u64 reada_next; struct reada_zone *reada_curr_zone; -- 2.15.1