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mm: make page_lock_anon_vma() static

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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: Hugh Dickins <hugh@veritas.com>
Reviewed-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Hugh Dickins 2009-01-06 14:39:26 -08:00 committed by Linus Torvalds
parent b5934c5318
commit 2afd1c928f
2 changed files with 2 additions and 5 deletions
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3
include/linux/rmap.h
View File

@ -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
*/

4
mm/rmap.c
View File

@ -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();