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Commit 2afd1c92 authored by Hugh Dickins's avatar Hugh Dickins Committed by Linus Torvalds
Browse files

mm: make page_lock_anon_vma() static 



page_lock_anon_vma() and page_unlock_anon_vma() were made available to
show_page_path() in vmscan.c; but now that has been removed, make them
static in rmap.c again, they're better kept private if possible.

Signed-off-by: default avatarHugh Dickins <hugh@veritas.com>
Reviewed-by: default avatarKOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent b5934c53

include/linux/rmap.h

+0 −3
Original line number Diff line number Diff line
@@ -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

 */

mm/rmap.c

+2 −2
Original line number Diff line number Diff line
@@ -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 @@ struct anon_vma *page_lock_anon_vma(struct page *page) 
	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();