mm: remove rest of ACCESS_ONCE() usages
We converted some of the usages of ACCESS_ONCE to READ_ONCE in the mm/
tree since it doesn't work reliably on non-scalar types.
This patch removes the rest of the usages of ACCESS_ONCE, and use the new
READ_ONCE API for the read accesses. This makes things cleaner, instead
of using separate/multiple sets of APIs.
Signed-off-by: Jason Low <jason.low2@hp.com>
Acked-by: Michal Hocko <mhocko@suse.cz>
Acked-by: Davidlohr Bueso <dave@stgolabs.net>
Acked-by: Rik van Riel <riel@redhat.com>
Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/mm/slub.c b/mm/slub.c
index 0fdd6c1..54c0876 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -4277,7 +4277,7 @@
int node;
struct page *page;
- page = ACCESS_ONCE(c->page);
+ page = READ_ONCE(c->page);
if (!page)
continue;
@@ -4292,7 +4292,7 @@
total += x;
nodes[node] += x;
- page = ACCESS_ONCE(c->partial);
+ page = READ_ONCE(c->partial);
if (page) {
node = page_to_nid(page);
if (flags & SO_TOTAL)