On 07/31/2015 05:28 PM, Vlastimil Babka wrote:
v2 changes:
- dropped Patch 6 as adjusting to Joonsoo's objection would be too
complicated and the results didn't justify it
- don't check for compound order > 0 in patches 4 and 5 as suggested by
Michal Nazarewicz. Negative values are handled by converting to unsinged
int, the pfn calculations work fine with 0 and it's unlikely to see 0
due to a race when we just checked PageCompound().
ah, also patch 3 calls reset_cached_positions() from
__reset_isolation_suitable() as v1 missed a callsite by doing it
separately (spotted by Joonsoo)
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