Messages in this thread | | | Date | Tue, 18 Feb 2014 12:21:42 -0800 | From | Jens Axboe <> | Subject | Re: [PATCH tip/core/rcu 10/12] block: Substitute rcu_access_pointer() for rcu_dereference_raw() |
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On Mon, Feb 17 2014, Paul E. McKenney wrote: > From: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> > > (Trivial patch.) > > If the code is looking at the RCU-protected pointer itself, but not > dereferencing it, the rcu_dereference() functions can be downgraded to > rcu_access_pointer(). This commit makes this downgrade in blkg_destroy() > and ioc_destroy_icq(), both of which simply compare the RCU-protected > pointer against another pointer with no dereferencing.
Thanks Paul, applied.
-- Jens Axboe
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