From: Kai Song <songkai01@inspur.com>
Date: Fri, 5 Nov 2021 13:42:22 -0700
Subject: mm/vmscan.c: fix -Wunused-but-set-variable warning
Git-commit: cb75463ca73483e79fbbad60f6fb704ee0489856
Patch-mainline: v5.16-rc1
References: jsc#PED-1248
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: Kai Song <songkai01@inspur.com>
Reviewed-by: Yang Shi <shy828301@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
---
mm/vmscan.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -1338,7 +1338,6 @@ static unsigned int demote_page_list(str
{
int target_nid = next_demotion_node(pgdat->node_id);
unsigned int nr_succeeded;
- int err;
if (list_empty(demote_pages))
return 0;
@@ -1347,7 +1346,7 @@ static unsigned int demote_page_list(str
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);