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Thu, 18 Jan 2018 09:24:46 -0500 Date: Thu, 18 Jan 2018 15:22:34 +0100 From: David Sterba To: Matthew Wilcox Cc: linux-kernel@vger.kernel.org, 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: Re: [PATCH v6 85/99] btrfs: Remove unused spinlock Message-ID: <20180118142234.GK13726@twin.jikos.cz> Reply-To: dsterba@suse.cz Mail-Followup-To: dsterba@suse.cz, Matthew Wilcox , linux-kernel@vger.kernel.org, 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 References: <20180117202203.19756-1-willy@infradead.org> <20180117202203.19756-86-willy@infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20180117202203.19756-86-willy@infradead.org> User-Agent: Mutt/1.5.23.1 (2014-03-12) 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: On Wed, Jan 17, 2018 at 12:21:49PM -0800, Matthew Wilcox wrote: > 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 I'll pick this one now, thanks.