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-rw-r--r--include/linux/rmap.h3
-rw-r--r--mm/rmap.c4
2 files changed, 2 insertions, 5 deletions
diff --git a/include/linux/rmap.h b/include/linux/rmap.h
index 89f0564..3593b18 100644
--- a/include/linux/rmap.h
+++ b/include/linux/rmap.h
@@ -63,9 +63,6 @@ void anon_vma_unlink(struct vm_area_struct *);
void anon_vma_link(struct vm_area_struct *);
void __anon_vma_link(struct vm_area_struct *);
-extern struct anon_vma *page_lock_anon_vma(struct page *page);
-extern void page_unlock_anon_vma(struct anon_vma *anon_vma);
-
/*
* rmap interfaces called when adding or removing pte of page
*/
diff --git a/mm/rmap.c b/mm/rmap.c
index 10da682..892e187 100644
--- a/mm/rmap.c
+++ b/mm/rmap.c
@@ -193,7 +193,7 @@ void __init anon_vma_init(void)
* Getting a lock on a stable anon_vma from a page off the LRU is
* tricky: page_lock_anon_vma rely on RCU to guard against the races.
*/
-struct anon_vma *page_lock_anon_vma(struct page *page)
+static struct anon_vma *page_lock_anon_vma(struct page *page)
{
struct anon_vma *anon_vma;
unsigned long anon_mapping;
@@ -213,7 +213,7 @@ out:
return NULL;
}
-void page_unlock_anon_vma(struct anon_vma *anon_vma)
+static void page_unlock_anon_vma(struct anon_vma *anon_vma)
{
spin_unlock(&anon_vma->lock);
rcu_read_unlock();