[Patch 0/3] threaded mmap tweaks

[Arjan van de Ven]

Hi,

I've been looking at a micro-benchmark that basically starts a few
threads which then each allocate some memory (via mmap), use it briefly
and then free it again (munmap). During this benchmark the mmap_sem gets
contended and as a result things go less well than expected. The patches
in this series improved the benchmark by 3% on a wallclock time basis.

Greetings,
   Arjan van de Ven
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