| Date | Tue, 24 Mar 2020 17:27:25 +0100 | From | Greg KH <> | Subject | Re: [RFC PATCH 02/21] list: Remove hlist_nulls_unhashed_lockless() |
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On Tue, Mar 24, 2020 at 03:36:24PM +0000, Will Deacon wrote: > Commit 02b99b38f3d9 ("rcu: Add a hlist_nulls_unhashed_lockless() function") > introduced the (as yet unused) hlist_nulls_unhashed_lockless() function > to avoid KCSAN reports when an RCU reader checks the 'hashed' status > of an 'hlist_nulls' concurrently undergoing modification. > > Remove the unused function and add a READ_ONCE() to hlist_nulls_unhashed(), > just like we do already for hlist_nulls_empty(). > > Cc: Paul E. McKenney <paulmck@kernel.org> > Cc: Peter Zijlstra <peterz@infradead.org> > Signed-off-by: Will Deacon <will@kernel.org> > --- > include/linux/list_nulls.h | 14 -------------- > 1 file changed, 14 deletions(-)
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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