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From: Christoph Hellwig <hch@infradead.org>
Subject: Re: [RFC PATCH] fs: allow open(dir, O_TMPFILE|..., 0) with mode 0
Date: Mon, 3 Nov 2014 00:34:47 -0800
Message-ID: <20141103083447.GA8617@infradead.org>
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Cc: Andy Lutomirski <luto@amacapital.net>,
	Christoph Hellwig <hch@infradead.org>,
	Al Viro <viro@zeniv.linux.org.uk>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	Eric Rannaud <e@nanocritical.com>,
	Andrew Morton <akpm@linux-foundation.org>,
	linux-fsdevel <linux-fsdevel@vger.kernel.org>
To: Linus Torvalds <torvalds@linux-foundation.org>
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On Fri, Oct 31, 2014 at 11:53:09AM -0700, Linus Torvalds wrote:
> On Fri, Oct 31, 2014 at 11:44 AM, Andy Lutomirski <luto@amacapital.net> wrote:
> >
> > Does the patch in this thread not fix that?
> 
> It should. Modulo the glibc problem that makes it hard to actually set
> the mode properly.

That doesn't help because we explicitly reject O_RDONLY when combined
with O_TMPFILE.