On Thu, Nov 13, 2014 at 02:24:08PM -0500, Pranith Kumar wrote: > Recently lockless_dereference() was added which can be used in place of > hard-coding smp_read_barrier_depends(). The following PATCH makes the change. > > Signed-off-by: Pranith Kumar <bobby.prani@xxxxxxxxx> > --- > Documentation/memory-barriers.txt | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/Documentation/memory-barriers.txt b/Documentation/memory-barriers.txt > index 3d5f49b..841ac36 100644 > --- a/Documentation/memory-barriers.txt > +++ b/Documentation/memory-barriers.txt > @@ -203,7 +203,7 @@ There are some minimal guarantees that may be expected of a CPU: > and always in that order. On most systems, smp_read_barrier_depends() > does nothing, but it is required for DEC Alpha. The ACCESS_ONCE() > is required to prevent compiler mischief. Please note that you > - should normally use something like rcu_dereference() instead of > + should normally use something like lockless_dereference() instead of Good catch, but please keep both possibilities, something like "... like rcu_dereference() or lockless_dereference() instead of ..." Thanx, Paul > open-coding smp_read_barrier_depends(). > > (*) Overlapping loads and stores within a particular CPU will appear to be > -- > 1.9.1 > -- To unsubscribe from this list: send the line "unsubscribe linux-doc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
