[PATCH] pi-futex: robust-futex exit crash fix
Fix pi_state->list handling bugs: list handling mishap, locking error. Plus add more debug checks and fix a few style issues i noticed while debugging this. (reported by Ulrich Drepper and Jakub Jelinek.) Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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