tree 4c5bf27f99e5371da667e8c4105d2839e664409a
parent 38d47c1b7075bd7ec3881141bb3629da58f88dab
author Peter Zijlstra <a.p.zijlstra@chello.nl> 1222450341 +0200
committer Ingo Molnar <mingo@elte.hu> 1222770936 +0200

futex: reduce mmap_sem usage

now that we rely on get_user_pages() for the shared key handling
move all the mmap_sem stuff closely around the slow paths.

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Acked-by: Nick Piggin <nickpiggin@yahoo.com.au>
Signed-off-by: Ingo Molnar <mingo@elte.hu>