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

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <CANP1eJH6BNiJ8zwA2Ba4Dc-2NZ5s2TBE4NVg3Ydk_cvSdDQUFQ@mail.gmail.com>
Date:	Fri, 14 Nov 2014 13:45:02 -0500
From:	Milosz Tanski <milosz@...in.com>
To:	Dave Jones <davej@...hat.com>, Jeff Moyer <jmoyer@...hat.com>,
	Dave Chinner <david@...morbit.com>,
	Milosz Tanski <milosz@...in.com>,
	LKML <linux-kernel@...r.kernel.org>,
	Christoph Hellwig <hch@...radead.org>,
	"linux-fsdevel@...r.kernel.org" <linux-fsdevel@...r.kernel.org>,
	"linux-aio@...ck.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 <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)

On Fri, Nov 14, 2014 at 11:39 AM, Dave Jones <davej@...hat.com> wrote:
> 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.
>
> 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..

Yes, I am hoping to get it into 3.19. It's a large pain having to deal
with other changes to the syscall code.

On a unrelated note I just back to figuring out how to add this to
xfstests. I got busy with other things the last few days. I'm still
not quite sure how to write a test using the framework, the
documentation (README) seams very XFS specific and otherwise the test
seam to be be split between many different files / directories / C
code / shell code. I might be me being slow... but it's just not
obvious for me how to glue the whole thing together.

-- 
Milosz Tanski
CTO
16 East 34th Street, 15th floor
New York, NY 10016

p: 646-253-9055
e: milosz@...in.com
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/