linux-kernel - Re: IMA: kernel reading files opened with O

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Message-ID: <x49tx6ztx9d.fsf@segfault.boston.devel.redhat.com>
Date:	Wed, 02 Jul 2014 14:45:50 -0400
From:	Jeff Moyer <jmoyer@...hat.com>
To:	Christoph Hellwig <hch@...radead.org>
Cc:	Dmitry Kasatkin <d.kasatkin@...sung.com>, linux-mm@...ck.org,
	linux-fsdevel@...r.kernel.org,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	akpm@...ux-foundation.org, viro@...IV.linux.org.uk,
	Mimi Zohar <zohar@...ux.vnet.ibm.com>,
	linux-security-module <linux-security-module@...r.kernel.org>,
	Greg KH <gregkh@...uxfoundation.org>,
	Dmitry Kasatkin <dmitry.kasatkin@...il.com>
Subject: Re: IMA: kernel reading files opened with O_DIRECT

Christoph Hellwig <hch@...radead.org> writes:

> On Wed, Jul 02, 2014 at 11:55:41AM -0400, Jeff Moyer wrote:
>> It's acceptable.
>
> It's not because it will then also affect other reads going on at the
> same time.

OK, that part I was fuzzy on.  I wasn't sure if they were preventing
other reads/writes to the same file somehow.  I should have mentioned
that.

Cheers,
Jeff
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