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mm/swap.c: clean up *lru_cache_add* functions 

In mm/swap.c, __lru_cache_add() is exported, but actually there are no
users outside this file.

This patch unexports __lru_cache_add(), and makes it static.  It also
exports lru_cache_add_file(), as it is use by cifs and fuse, which can
loaded as modules.

Signed-off-by: Jianyu Zhan <nasa4836@gmail.com>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Shaohua Li <shli@kernel.org>
Cc: Bob Liu <bob.liu@oracle.com>
Cc: Seth Jennings <sjenning@linux.vnet.ibm.com>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: Rafael Aquini <aquini@redhat.com>
Cc: Mel Gorman <mgorman@suse.de>
Acked-by: Rik van Riel <riel@redhat.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Khalid Aziz <khalid.aziz@oracle.com>
Cc: Christoph Hellwig <hch@lst.de>
Reviewed-by: Zhang Yanfei <zhangyanfei@cn.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:
Jianyu Zhan 2014-06-04 16:07:31 -07:00 committed by Linus Torvalds
parent cbe97414c2
commit 2329d3751b
2 changed files with 25 additions and 25 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

19
include/linux/swap.h
View File

@ -308,8 +308,9 @@ extern unsigned long nr_free_pagecache_pages(void);
/* linux/mm/swap.c */
extern void __lru_cache_add(struct page *);
extern void lru_cache_add(struct page *);
extern void lru_cache_add_anon(struct page *page);
extern void lru_cache_add_file(struct page *page);
extern void lru_add_page_tail(struct page *page, struct page *page_tail,
struct lruvec *lruvec, struct list_head *head);
extern void activate_page(struct page *);
@ -323,22 +324,6 @@ extern void swap_setup(void);
extern void add_page_to_unevictable_list(struct page *page);
/**
* lru_cache_add: add a page to the page lists
* @page: the page to add
*/
static inline void lru_cache_add_anon(struct page *page)
{
ClearPageActive(page);
__lru_cache_add(page);
}
static inline void lru_cache_add_file(struct page *page)
{
ClearPageActive(page);
__lru_cache_add(page);
}
/* linux/mm/vmscan.c */
extern unsigned long try_to_free_pages(struct zonelist *zonelist, int order,
gfp_t gfp_mask, nodemask_t *mask);

31
mm/swap.c
View File

@ -582,13 +582,7 @@ void mark_page_accessed(struct page *page)
}
EXPORT_SYMBOL(mark_page_accessed);
/*
* Queue the page for addition to the LRU via pagevec. The decision on whether
* to add the page to the [in]active [file|anon] list is deferred until the
* pagevec is drained. This gives a chance for the caller of __lru_cache_add()
* have the page added to the active list using mark_page_accessed().
*/
void __lru_cache_add(struct page *page)
static void __lru_cache_add(struct page *page)
{
struct pagevec *pvec = &get_cpu_var(lru_add_pvec);
@ -598,11 +592,32 @@ void __lru_cache_add(struct page *page)
pagevec_add(pvec, page);
put_cpu_var(lru_add_pvec);
}
EXPORT_SYMBOL(__lru_cache_add);
/**
* lru_cache_add: add a page to the page lists
* @page: the page to add
*/
void lru_cache_add_anon(struct page *page)
{
ClearPageActive(page);
__lru_cache_add(page);
}
void lru_cache_add_file(struct page *page)
{
ClearPageActive(page);
__lru_cache_add(page);
}
EXPORT_SYMBOL(lru_cache_add_file);
/**
* lru_cache_add - add a page to a page list
* @page: the page to be added to the LRU.
*
* Queue the page for addition to the LRU via pagevec. The decision on whether
* to add the page to the [in]active [file|anon] list is deferred until the
* pagevec is drained. This gives a chance for the caller of lru_cache_add()
* have the page added to the active list using mark_page_accessed().
*/
void lru_cache_add(struct page *page)
{