linux-kernel - Re: [PATCH] Use kzfree in tty buffer management to enforce data sanitization

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Message-ID: <20090531181020.05fb89d5@lxorguk.ukuu.org.uk>
Date:	Sun, 31 May 2009 18:10:20 +0100
From:	Alan Cox <alan@...rguk.ukuu.org.uk>
To:	Linus Torvalds <torvalds@...ux-foundation.org>
Cc:	Pekka Enberg <penberg@...helsinki.fi>,
	"Larry H." <research@...reption.com>, linux-kernel@...r.kernel.org,
	linux-mm@...ck.org, Rik van Riel <riel@...hat.com>
Subject: Re: [PATCH] Use kzfree in tty buffer management to enforce data 
 sanitization

> I think Pekka meant the other way around - why don't we always just use 
> kmalloc(N_TTY_BUF_SIZE)/kfree(), and drop the whole conditional "use page 
> allocator" entirely?

We certainly can nowdays - the old allocator used to allocate 8K for 4K
and a bit of memory and its many years single we acquired slab so yes it
can go.

> If I'm right, then we could just use kmalloc/kfree unconditionally. Pekka?

Added to the tty queue will do that tomorrow
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