linux-kernel - Re: [PATCH v6 0/7] vfs: Non-blockling buffered fs read (page cache only)

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Message-ID: <x491tp5ybcc.fsf@segfault.boston.devel.redhat.com>
Date:	Fri, 14 Nov 2014 11:51:31 -0500
From:	Jeff Moyer <jmoyer@...hat.com>
To:	Dave Jones <davej@...hat.com>
Cc:	Dave Chinner <david@...morbit.com>,
	Milosz Tanski <milosz@...in.com>, linux-kernel@...r.kernel.org,
	Christoph Hellwig <hch@...radead.org>,
	linux-fsdevel@...r.kernel.org, linux-aio@...ck.org,
	Mel Gorman <mgorman@...e.de>,
	Volker Lendecke <Volker.Lendecke@...net.de>,
	Tejun Heo <tj@...nel.org>, "Theodore Ts'o" <tytso@....edu>,
	Al Viro <viro@...iv.linux.org.uk>, linux-api@...r.kernel.org,
	Michael Kerrisk <mtk.manpages@...il.com>,
	linux-arch@...r.kernel.org
Subject: Re: [PATCH v6 0/7] vfs: Non-blockling buffered fs read (page cache only)

Dave Jones <davej@...hat.com> writes:

> On Fri, Nov 14, 2014 at 11:32:53AM -0500, Jeff Moyer wrote:
>
>  > > Can you write a test (or set of) for fstests that exercises this new
>  > > functionality? I'm not worried about performance, just
>  > > correctness....
>  > 
>  > On the subject of testing, I added support to trinity (attached,
>  > untested).  That did raise one question.  Do we expect applications to
>  > #include <linux/fs.h> to get the RWF_NONBLOCK definition?
>  
> Trinity will at least need an addition to include/compat.h for
> older headers that won't have the definition.  Looks ok otherwise.

OK, I'll add that.

> Also, I usually sit on stuff like this until the syscall numbers are
> in Linus tree. This is 3.19 stuff I presume ?
> istr akpm picked up execveat recently, so if that goes in first, we'll
> need to respin this anyway..

Sure.  I just wanted to test with trinity *before* it makes it into the
kernel.  Crazy, I know.  ;-)

Cheers,
Jeff
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