tree 44085d9b599e06a92426141811a6f712beac17aa
parent cdc39363d33506b0e067d41fc91f89d186bdf7f7
author Martin Schwidefsky <schwidefsky@de.ibm.com> 1159684065 -0700
committer Linus Torvalds <torvalds@g5.osdl.org> 1159688362 -0700

[PATCH] Directed yield: direct yield of spinlocks for s390.

Use the new diagnose 0x9c in the spinlock implementation for s390.  It
yields the remaining timeslice of the virtual cpu that tries to acquire a
lock to the virtual cpu that is the current holder of the lock.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>