Commit cb75463c authored by Kai Song's avatar Kai Song Committed by Linus Torvalds
Browse files

mm/vmscan.c: fix -Wunused-but-set-variable warning 

We fix the following warning when building kernel with W=1:

  mm/vmscan.c:1362:6: warning: variable 'err' set but not used [-Wunused-but-set-variable]

Link: https://lkml.kernel.org/r/20210924181218.21165-1-songkai01@inspur.com


Signed-off-by: default avatarKai Song <songkai01@inspur.com>
Reviewed-by: default avatarYang Shi <shy828301@gmail.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent a500cb34

mm/vmscan.c

+1 −2
Original line number Diff line number Diff line
@@ -1337,7 +1337,6 @@ static unsigned int demote_page_list(struct list_head *demote_pages, 
{

	int target_nid = next_demotion_node(pgdat->node_id);

	unsigned int nr_succeeded;

	int err;



	if (list_empty(demote_pages))

		return 0;
@@ -1346,7 +1345,7 @@ static unsigned int demote_page_list(struct list_head *demote_pages, 
		return 0;



	/* Demotion ignores all cpuset and mempolicy settings */

	err = migrate_pages(demote_pages, alloc_demote_page, NULL,

	migrate_pages(demote_pages, alloc_demote_page, NULL,

			    target_nid, MIGRATE_ASYNC, MR_DEMOTION,

			    &nr_succeeded);