Re: [PATCH] scsi: fix sense_slab/bio swapping livelock

From: Pekka Enberg
Date: Mon Apr 07 2008 - 17:36:38 EST


Hi Linus,

Linus Torvalds wrote:
I suspect the right thing to do is not to mark them for "IO", but mark them for "short-lived", and allow short-lived allocations that don't have extended lifetimes to succeed even when a "real" allocation wouldn't.

Yeah, makes sense. We do have GFP_TEMPORARY so we could associate this new semantics with that. But the real problem here is how to do the "allocate harder" part which, btw, sounds very similar to what Peter's kmalloc reserve patches try to do...

Pekka
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