mm/gup: Replace ACCESS_ONCE with READ_ONCE

[firefly-linux-kernel-4.4.55.git] / mm / gup.c

diff --git a/mm/gup.c b/mm/gup.c
index a900759cc8075fc8b0da9a37ebf6f93de34d8d10..bed30efad77cde82edc22af7bb21b51fa88e88d3 100644 (file)
--- a/mm/gup.c
+++ b/mm/gup.c
@@ -926,7 +926,7 @@ static int gup_pmd_range(pud_t pud, unsigned long addr, unsigned long end,
 
        pmdp = pmd_offset(&pud, addr);
        do {
-               pmd_t pmd = ACCESS_ONCE(*pmdp);
+               pmd_t pmd = READ_ONCE(*pmdp);
 
                next = pmd_addr_end(addr, end);
                if (pmd_none(pmd) || pmd_trans_splitting(pmd))