linux-kernel - Re: [PATCH] deprecate memclear_highpage

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Date:	Tue, 15 May 2007 09:00:32 -0700
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	Christoph Hellwig <hch@....de>
Cc:	nate.diller@...il.com, torvalds@...ux-foundation.org,
	linux-kernel@...r.kernel.org,
	Trond Myklebust <trond.myklebust@....uio.no>,
	Timothy Shimmin <tes@....com>,
	Michael Halcrow <mhalcrow@...ibm.com>
Subject: Re: [PATCH] deprecate memclear_highpage_flush deprecation warnings

On Tue, 15 May 2007 14:24:40 +0200 Christoph Hellwig <hch@....de> wrote:

> Recent builds get tons of warnings about memclear_highpage_flush
> beeing deprecated.  Turns out it's replaced by zero_user_page
> which takes an additional argument.
> 
> Now folks, deprecated is for actual functionality going away, there
> is no need to mark the old name deprecated for such a trivial
> paramter change and rename.

Yes, it's rather trivial, but memclear_highpage_flush() *is* going away.

>  This stuff should go to Linus in one
> patch that doesn't create utterly useless warnings and keeps around
> stale interfaces.
> 
> Here's a patch to kill memclear_highpage_flush and convert the reaming
> user to make the build a littler more silent, it's more than noisy
> enough due to all the useless addition of __deprecated or __must_check
> to widely used functionality and gcc stupid false positives.

Patches have been prepared which convert all in-kernel users.  I thought
I'd dtrt and feed them through maintainers, but that takes time.  The
laggards are on cc ;)
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