linux-kernel - Re: [PATCH v5 04/78] page cache: Use xa

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Message-ID: <20171226165624.vdarbqqx5czgeqxc@node.shutemov.name>
Date:   Tue, 26 Dec 2017 19:56:24 +0300
From:   "Kirill A. Shutemov" <kirill@...temov.name>
To:     Matthew Wilcox <willy@...radead.org>
Cc:     linux-kernel@...r.kernel.org,
        Matthew Wilcox <mawilcox@...rosoft.com>,
        Ross Zwisler <ross.zwisler@...ux.intel.com>,
        David Howells <dhowells@...hat.com>,
        Shaohua Li <shli@...nel.org>, Jens Axboe <axboe@...nel.dk>,
        Rehas Sachdeva <aquannie@...il.com>,
        Marc Zyngier <marc.zyngier@....com>, linux-mm@...ck.org,
        linux-fsdevel@...r.kernel.org,
        linux-f2fs-devel@...ts.sourceforge.net,
        linux-nilfs@...r.kernel.org, linux-btrfs@...r.kernel.org,
        linux-xfs@...r.kernel.org, linux-usb@...r.kernel.org,
        linux-raid@...r.kernel.org
Subject: Re: [PATCH v5 04/78] page cache: Use xa_lock

On Fri, Dec 15, 2017 at 02:03:36PM -0800, Matthew Wilcox wrote:
> From: Matthew Wilcox <mawilcox@...rosoft.com>
> 
> Remove the address_space ->tree_lock and use the xa_lock newly added to
> the radix_tree_root.  Rename the address_space ->page_tree to ->pages,
> since we don't really care that it's a tree.  Take the opportunity to
> rearrange the elements of address_space to pack them better on 64-bit,
> and make the comments more useful.

The description sounds a lot like three commits ;)

-- 
 Kirill A. Shutemov