Re: [PATCH 06/18] xfs: convert pag_ici_lock to a spin lock

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On Tue, 2010-09-14 at 20:56 +1000, Dave Chinner wrote:
> From: Dave Chinner <dchinner@xxxxxxxxxx>
> 
> now that we are using RCU protection for the inode cache lookups,
> the lock is only needed on the modification side. Hence it is not
> necessary for the lock to be a rwlock as there are no read side
> holders anymore. Convert it to a spin lock to reflect it's exclusive
> nature.

This is of course contingent on the correctness of
the RCU change before this.  But this one looks good.

Reviewed-by: Alex Elder <aelder@xxxxxxx>


> Signed-off-by: Dave Chinner <dchinner@xxxxxxxxxx>
> ---
>  fs/xfs/linux-2.6/xfs_sync.c |   16 ++++++++--------

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