linux-kernel - Re: kernel BUGs when removing largish files with the SLOB allocator

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Message-ID: <24525.1158089104@warthog.cambridge.redhat.com>
Date:	Tue, 12 Sep 2006 20:25:04 +0100
From:	David Howells <dhowells@...hat.com>
To:	Matt Mackall <mpm@...enic.com>
Cc:	Aubrey <aubreylee@...il.com>,
	Nick Piggin <nickpiggin@...oo.com.au>,
	David Howells <dhowells@...hat.com>,
	linux-kernel@...r.kernel.org, davidm@...pgear.com,
	gerg@...pgear.com
Subject: Re: kernel BUGs when removing largish files with the SLOB allocator 

Matt Mackall <mpm@...enic.com> wrote:

> Looking through all the users of kobjsize, it seems we always know
> what the type is (and it's usually a VMA). I instead propose we use
> ksize on objects we know to be SLAB/SLOB-allocated and add a new
> function (kpagesize?) to size other objects where nommu needs it.

It sounds like we'd need an op in the VMA to do the per-type size thing (the
VMA itself not the VMA ops table).

David
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