Commit 38183b9c authored by Stephen Rothwell's avatar Stephen Rothwell Committed by Rusty Russell

rcu: merge fix for Convert ACCESS_ONCE() to READ_ONCE() and WRITE_ONCE()

This mirrors the change introduced by 7d0ae808 of same title
in Linus' tree; it's not obvious as a merge resolution since we moved
the function.
Signed-off-by: default avatarStephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: default avatarRusty Russell <rusty@rustcorp.com.au>
parent b51d23e4
...@@ -467,7 +467,7 @@ static __always_inline void __write_once_size(volatile void *p, void *res, int s ...@@ -467,7 +467,7 @@ static __always_inline void __write_once_size(volatile void *p, void *res, int s
*/ */
#define lockless_dereference(p) \ #define lockless_dereference(p) \
({ \ ({ \
typeof(p) _________p1 = ACCESS_ONCE(p); \ typeof(p) _________p1 = READ_ONCE(p); \
smp_read_barrier_depends(); /* Dependency order vs. p above. */ \ smp_read_barrier_depends(); /* Dependency order vs. p above. */ \
(_________p1); \ (_________p1); \
}) })
......
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