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Peter Zijlstra
b9c16a0e1f
In commit:659cf9f582("locking/ww_mutex: Optimize ww-mutexes by waking at most one waiter for backoff when acquiring the lock") I replaced a comment with a lockdep_assert_held(). However it turns out we hide that lock from lockdep for hysterical raisins, which results in the assertion always firing. Remove the old debug code as lockdep will easily spot the abuse it was meant to catch, which will make the lock visible to lockdep and make the assertion work as intended. Reported-by: Mike Galbraith <[email protected]> Signed-off-by: Peter Zijlstra (Intel) <[email protected]> Cc: Linus Torvalds <[email protected]> Cc: Nicolai Haehnle <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Thomas Gleixner <[email protected]> Fixes:659cf9f582("locking/ww_mutex: Optimize ww-mutexes by waking at most one waiter for backoff when acquiring the lock") Link: http://lkml.kernel.org/r/20170117150609.GB32474@worktop Signed-off-by: Ingo Molnar <[email protected]>