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/swap_state.c b/mm/swap_state.c
index 405923f..8bc8e66 100644
--- a/mm/swap_state.c
+++ b/mm/swap_state.c
@@ -390,7 +390,7 @@
unsigned int pages, max_pages, last_ra;
static atomic_t last_readahead_pages;
- max_pages = 1 << ACCESS_ONCE(page_cluster);
+ max_pages = 1 << READ_ONCE(page_cluster);
if (max_pages <= 1)
return 1;
