Re: [PATCH 2.5.66-mm2] Fix page_convert_anon locking issues

From: Dave McCracken (dmccr@us.ibm.com)
Date: Thu Apr 03 2003 - 11:39:37 EST

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--On Thursday, April 03, 2003 17:33:31 +0100 Hugh Dickins
<hugh@veritas.com> wrote:

> No: see the various checks on page_count(page) in vmscan.c:
> though page_convert_anon temporarily leaves a page with neither
> mapcount nor the right number of pte pointers, page_count is unaffected.

Oh, hmm... Ok, so it's safe... This could have some interesting
implications all around.

Dave

======================================================================
Dave McCracken IBM Linux Base Kernel Team 1-512-838-3059
dmccr@us.ibm.com T/L 678-3059

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