Thread (7 messages) flat view 7 messages, 4 authors, 2009-08-20

Re: [PATCH] Add kmemleak annotations to lmb.c

From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Date: 2009-08-14 07:57:05

On Thu, 2009-08-13 at 16:40 +0100, Catalin Marinas wrote:
On Thu, 2009-08-13 at 13:01 +1000, Michael Ellerman wrote:
quoted
We don't actually want kmemleak to track the lmb allocations, so we
pass min_count as 0. However telling kmemleak about lmb allocations
allows it to scan that memory for pointers to other memory that is
tracked by kmemleak, ie. slab allocations etc.
Looks alright to me (though I haven't tested it). You can add a
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Actually, Milton pointed to me that we may not want to allow all
LMB chunks to be scanned by kmemleaks, things like the DART hole
that's taken out of the linear mapping for example may need to
be avoided, though I'm not sure what would be the right way to
do it.

Cheers,
Ben.
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