futex: reduce mmap_sem usage

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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>

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Peter Zijlstra 2008-09-26 19:32:21 +02:00 • committed by Ingo Molnar

parent 38d47c1b70

commit 61270708ec

1 changed files with 4 additions and 79 deletions

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kernel/futex.c

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