Messages in this thread | | | From | Daniel Phillips <> | Subject | Re: [PATCH 00/10] foundations for reserve-based allocation | Date | Mon, 6 Aug 2007 12:31:04 -0700 |
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On Monday 06 August 2007 11:17, Peter Zijlstra wrote: > And how do we know a page was taken out of the reserves?
Why not return that in the low bit of the page address? This is a little more cache efficient, does not leave that odd footprint in the page union and forces the caller to examine the alloc_pages(...P_MEMALLOC) return, making it harder to overlook the fact that it got a page out of reserve and forget to put one back later.
Regards,
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