linux-kernel - Re: [patch] char/raw.c locking on error

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Date:	Sat, 28 Mar 2009 00:49:27 +0100
From:	Bodo Eggert <7eggert@....de>
To:	Jonathan Corbet <corbet@....net>, Michael Tokarev <mjt@....msk.ru>,
	Dan Carpenter <error27@...il.com>,
	linux-kernel@...r.kernel.org, eteo@...hat.com
Subject: Re: [patch] char/raw.c locking on error

Jonathan Corbet <corbet@....net> wrote:
> Michael Tokarev <mjt@....msk.ru> wrote:

>> Is it still in use - the raw driver, that is?  Nowadays,
>> every block device can be opened in direct mode by using
>> O_DIRECT - this is what raw does.  I mean, is it worth
>> spending even more time on it?

As long as you don't fix all the legacy applications to use O_DIRECT.

> This was discussed a while back.  My understanding is that there are
> people using it.  It is a user-space ABI of sorts which can't just be
> yanked arbitrarily.  The right thing to do is probably to replace it
> with a shell implementation that just opens the device using O_DIRECT,
> but nobody has actually done that...

It had long been done when before it was discussed the last time.

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