linux-kernel - Re: [RFC PATCH 0/7] mm: Make more use of readahead

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Message-ID: <20200901164545.GP14765@casper.infradead.org>
Date:   Tue, 1 Sep 2020 17:45:45 +0100
From:   Matthew Wilcox <willy@...radead.org>
To:     Eric Biggers <ebiggers@...nel.org>
Cc:     David Howells <dhowells@...hat.com>, linux-fsdevel@...r.kernel.org,
        linux-mm@...ck.org, linux-kernel@...r.kernel.org
Subject: Re: [RFC PATCH 0/7] mm: Make more use of readahead_control

On Tue, Sep 01, 2020 at 09:41:32AM -0700, Eric Biggers wrote:
> On Tue, Sep 01, 2020 at 05:28:15PM +0100, David Howells wrote:
> > 
> > Hi Willy,
> > 
> > Here's a set of patches to expand the use of the readahead_control struct,
> > essentially from do_sync_mmap_readahead() down.  Note that I've been
> > passing the number of pages to read in rac->_nr_pages, and then saving it
> > and changing it certain points, e.g. page_cache_readahead_unbounded().
> > 
> > Also pass file_ra_state into force_page_cache_readahead().
> > 
> > Also there's an apparent minor bug in khugepaged.c that I've included a
> > patch for: page_cache_sync_readahead() looks to be given the wrong size in
> > collapse_file().
> > 
> 
> What branch does this apply to?

He's done it on top of http://git.infradead.org/users/willy/pagecache.git

I was hoping he'd include
http://git.infradead.org/users/willy/pagecache.git/commitdiff/c71de787328809026cfabbcc5485cb01caca8646
http://git.infradead.org/users/willy/pagecache.git/commitdiff/f3a1cd6447e29a54b03efc2189d943f12ac1c9b9
http://git.infradead.org/users/willy/pagecache.git/commitdiff/c03d3a5a5716bb0df2fe15ec528bbd895cd18e6e

as the first three patches in the series; then it should apply to Linus'
tree.