linux-ext4 - Re: [PATCH v5 01/13] mm: Fix the return type of __do_page_cache

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Date:   Tue, 11 Feb 2020 08:19:14 +0000
From:   Johannes Thumshirn <Johannes.Thumshirn@....com>
To:     Matthew Wilcox <willy@...radead.org>,
        "linux-fsdevel@...r.kernel.org" <linux-fsdevel@...r.kernel.org>
CC:     "linux-mm@...ck.org" <linux-mm@...ck.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-btrfs@...r.kernel.org" <linux-btrfs@...r.kernel.org>,
        "linux-erofs@...ts.ozlabs.org" <linux-erofs@...ts.ozlabs.org>,
        "linux-ext4@...r.kernel.org" <linux-ext4@...r.kernel.org>,
        "linux-f2fs-devel@...ts.sourceforge.net" 
        <linux-f2fs-devel@...ts.sourceforge.net>,
        "cluster-devel@...hat.com" <cluster-devel@...hat.com>,
        "ocfs2-devel@....oracle.com" <ocfs2-devel@....oracle.com>,
        "linux-xfs@...r.kernel.org" <linux-xfs@...r.kernel.org>
Subject: Re: [PATCH v5 01/13] mm: Fix the return type of
 __do_page_cache_readahead

On 11/02/2020 02:05, Matthew Wilcox wrote:
> even though I'm pretty sure we're not going to readahead more than 2^32
> pages ever.

And 640K is more memory than anyone will ever need on a computer *scnr*