mm: fix page_freeze_refs and page_unfreeze_refs in comments

page_freeze_refs/page_unfreeze_refs have already been relplaced by
page_ref_freeze/page_ref_unfreeze , but they are not modified in the
comments.

Link: http://lkml.kernel.org/r/1532590226-106038-1-git-send-email-jiang.biao2@zte.com.cn
Signed-off-by: Jiang Biao <jiang.biao2@zte.com.cn>
Acked-by: Michal Hocko <mhocko@suse.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/mm/ksm.c b/mm/ksm.c
index 2621be57bd957caabd5df559d41f2c40e284a26d..1bd514c9e5d08778caf843045b4b873d83637550 100644 (file)
--- a/mm/ksm.c
+++ b/mm/ksm.c
@@ -703,7 +703,7 @@ static struct page *get_ksm_page(struct stable_node *stable_node, bool lock_it)
         * We cannot do anything with the page while its refcount is 0.
         * Usually 0 means free, or tail of a higher-order page: in which
         * case this node is no longer referenced, and should be freed;
-        * however, it might mean that the page is under page_freeze_refs().
+        * however, it might mean that the page is under page_ref_freeze().
         * The __remove_mapping() case is easy, again the node is now stale;
         * but if page is swapcache in migrate_page_move_mapping(), it might
         * still be our page, in which case it's essential to keep the node.
@@ -714,7 +714,7 @@ static struct page *get_ksm_page(struct stable_node *stable_node, bool lock_it)
                 * work here too.  We have chosen the !PageSwapCache test to
                 * optimize the common case, when the page is or is about to
                 * be freed: PageSwapCache is cleared (under spin_lock_irq)
-                * in the freeze_refs section of __remove_mapping(); but Anon
+                * in the ref_freeze section of __remove_mapping(); but Anon
                 * page->mapping reset to NULL later, in free_pages_prepare().
                 */
                if (!PageSwapCache(page))

diff --git a/mm/memory-failure.c b/mm/memory-failure.c
index 9d142b9b86dcd970d46a2b8124f065bd5eb29391..c83a1746812f53ded0f1840df45619cc6b355c00 100644 (file)
--- a/mm/memory-failure.c
+++ b/mm/memory-failure.c
@@ -1167,7 +1167,7 @@ int memory_failure(unsigned long pfn, int flags)
         *    R/W the page; let's pray that the page has been
         *    used and will be freed some time later.
         * In fact it's dangerous to directly bump up page count from 0,
-        * that may make page_freeze_refs()/page_unfreeze_refs() mismatch.
+        * that may make page_ref_freeze()/page_ref_unfreeze() mismatch.
         */
        if (!(flags & MF_COUNT_INCREASED) && !get_hwpoison_page(p)) {
                if (is_free_buddy_page(p)) {

diff --git a/mm/vmscan.c b/mm/vmscan.c
index 3c6e2bfee4270a936d4f0fecea185f256c18b518..7e7d25504651d5b666f1706ff9a0743b3c62079f 100644 (file)
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -903,7 +903,7 @@ static int __remove_mapping(struct address_space *mapping, struct page *page,
                refcount = 2;
        if (!page_ref_freeze(page, refcount))
                goto cannot_free;
-       /* note: atomic_cmpxchg in page_freeze_refs provides the smp_rmb */
+       /* note: atomic_cmpxchg in page_ref_freeze provides the smp_rmb */
        if (unlikely(PageDirty(page))) {
                page_ref_unfreeze(page, refcount);
                goto cannot_free;