Re: [PATCH -tip/master 3/7] locking/mcs: Remove obsolete comment

From: Jason Low
Date: Mon Jul 28 2014 - 12:49:43 EST


On Sun, 2014-07-27 at 22:18 -0700, Davidlohr Bueso wrote:
> ... as we clearly inline mcs_spin_lock() now.
>
> Signed-off-by: Davidlohr Bueso <davidlohr@xxxxxx>
> ---
> kernel/locking/mcs_spinlock.h | 3 ---
> 1 file changed, 3 deletions(-)
>
> diff --git a/kernel/locking/mcs_spinlock.h b/kernel/locking/mcs_spinlock.h
> index 23e89c5..4d60986 100644
> --- a/kernel/locking/mcs_spinlock.h
> +++ b/kernel/locking/mcs_spinlock.h
> @@ -56,9 +56,6 @@ do { \
> * If the lock has already been acquired, then this will proceed to spin
> * on this node->locked until the previous lock holder sets the node->locked
> * in mcs_spin_unlock().
> - *
> - * We don't inline mcs_spin_lock() so that perf can correctly account for the
> - * time spent in this lock function.
> */
> static inline
> void mcs_spin_lock(struct mcs_spinlock **lock, struct mcs_spinlock *node)

Likewise, I'm wondering if we should make this function noinline so that
"perf can correctly account for the time spent in this lock function".


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