linux-kernel - Re: [PATCH 1/4] stringbuf: A string buffer implementation

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Message-Id: <1193194112.8866.7.camel@perkele>
Date:	Tue, 23 Oct 2007 22:48:32 -0400
From:	Eric St-Laurent <ericstl34@...patico.ca>
To:	Matthew Wilcox <matthew@....cx>
Cc:	torvalds@...ux-foundation.org, akpm@...ux-foundation.org,
	linux-kernel@...r.kernel.org,
	Matthew Wilcox <willy@...ux.intel.com>
Subject: Re: [PATCH 1/4] stringbuf: A string buffer implementation


On Tue, 2007-10-23 at 20:35 -0600, Matthew Wilcox wrote:

[...]

> > Multiple string objects can share the same data, by increasing the nrefs
> > count, a new data is allocated if the string is modified and nrefs > 1.
> 
> If we were trying to get rid of char * throughout the kernel, that might
> make some sense; stringbufs have a more limited target though.
> 

[...]

No contest, my suggestions only make sense for a general uses string
library.

I suspect most in-kernel string manipulations are limited to prepare
buffers to be copied to (and read from) user-space.


- Eric


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