tree fa13b2faa6c2f73255f52a65cd4f572d9bd95e1a
parent 833bb3046b6cb320e775ea2160ddca87d53260d5
author Darren Hart <dvhltc@us.ibm.com> 1238707178 -0700
committer Ingo Molnar <mingo@elte.hu> 1238708393 +0200

futex: comment requeue key reference semantics

We've tripped over the futex_requeue drop_count refering to key2
instead of key1.  The code is actually correct, but is non-intuitive.
This patch adds an explicit comment explaining the requeue.

Signed-off-by: Darren Hart <dvhltc@us.ibm.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Nick Piggin <nickpiggin@yahoo.com.au>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>