Re: [RFC/PATCH 3/3] SLOB: make ksize() more strict for page allocatorpass-through

From: Pekka Enberg
Date: Wed May 21 2008 - 15:13:56 EST

Matt Mackall wrote:
We already know users (ie nommu memory usage reporting) are abusing this
interface. Making them blow up is unnecessary. Just give them wrong
answers. Issuing a warning might be a good idea for debugging.

But kobjsize() never calls ksize() with SLOB as it doesn't set PageSlab. Or are you talking about something else here?

Matt Mackall wrote:
Second, I'd prefer to keep this sort of debugging code out of SLOB.
SLUB is much better suited to debugging allocator abuse.

Fair enough. I'll drop the patch.
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