Commit cb16556d authored by Yang Shi's avatar Yang Shi Committed by Linus Torvalds
Browse files

mm/vmscan.c: remove unused scan_control parameter from pageout() 

Since lumpy reclaim was removed in v3.5 scan_control is not used by
may_write_to_{queue|inode} and pageout() anymore, remove the unused
parameter.

Link: http://lkml.kernel.org/r/1570124498-19300-1-git-send-email-yang.shi@linux.alibaba.com


Signed-off-by: default avatarYang Shi <yang.shi@linux.alibaba.com>
Acked-by: default avatarDavid Rientjes <rientjes@google.com>
Acked-by: default avatarMichal Hocko <mhocko@suse.com>
Cc: Mel Gorman <mgorman@techsingularity.net>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent f87bccde

mm/vmscan.c

+4 −5
Original line number Diff line number Diff line
@@ -775,7 +775,7 @@ static inline int is_page_cache_freeable(struct page *page) 
	return page_count(page) - page_has_private(page) == 1 + page_cache_pins;

}



static int may_write_to_inode(struct inode *inode, struct scan_control *sc)

static int may_write_to_inode(struct inode *inode)

{

	if (current->flags & PF_SWAPWRITE)

		return 1;
@@ -823,8 +823,7 @@ typedef enum { 
 * pageout is called by shrink_page_list() for each dirty page.

 * Calls ->writepage().

 */

static pageout_t pageout(struct page *page, struct address_space *mapping,

			 struct scan_control *sc)

static pageout_t pageout(struct page *page, struct address_space *mapping)

{

	/*

	 * If the page is dirty, only perform writeback if that write
@@ -860,7 +859,7 @@ static pageout_t pageout(struct page *page, struct address_space *mapping, 
	}

	if (mapping->a_ops->writepage == NULL)

		return PAGE_ACTIVATE;

	if (!may_write_to_inode(mapping->host, sc))

	if (!may_write_to_inode(mapping->host))

		return PAGE_KEEP;



	if (clear_page_dirty_for_io(page)) {
@@ -1394,7 +1393,7 @@ static unsigned long shrink_page_list(struct list_head *page_list, 
			 * starts and then write it out here.

			 */

			try_to_unmap_flush_dirty();

			switch (pageout(page, mapping, sc)) {

			switch (pageout(page, mapping)) {

			case PAGE_KEEP:

				goto keep_locked;

			case PAGE_ACTIVATE: