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-rw-r--r--mm/rmap.c8
1 files changed, 3 insertions, 5 deletions
diff --git a/mm/rmap.c b/mm/rmap.c
index a3645d029400..928bdfe2be30 100644
--- a/mm/rmap.c
+++ b/mm/rmap.c
@@ -1501,12 +1501,10 @@ static int page_mapcount_is_zero(struct page *page)
*
* Tries to remove all the page table entries which are mapping this
* page, used in the pageout path. Caller must hold the page lock.
- * Return values are:
*
- * SWAP_SUCCESS - we succeeded in removing all mappings
- * SWAP_FAIL - the page is unswappable
+ * If unmap is successful, return true. Otherwise, false.
*/
-int try_to_unmap(struct page *page, enum ttu_flags flags)
+bool try_to_unmap(struct page *page, enum ttu_flags flags)
{
struct rmap_walk_control rwc = {
.rmap_one = try_to_unmap_one,
@@ -1531,7 +1529,7 @@ int try_to_unmap(struct page *page, enum ttu_flags flags)
else
rmap_walk(page, &rwc);
- return !page_mapcount(page) ? SWAP_SUCCESS : SWAP_FAIL;
+ return !page_mapcount(page) ? true : false;
}
static int page_not_mapped(struct page *page)