mm/vmscan: modify the assignment logic of the scan and total_scan variables

The scan and total_scan variables can be initialized to 0 when they are
defined, replacing the separate assignment statements.

Link: https://lkml.kernel.org/r/20250417092422.1333620-1-hao.ge@linux.dev
Signed-off-by: Hao Ge <gehao@kylinos.cn>
Acked-by: Dev Jain <dev.jain@arm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

diff --git a/mm/vmscan.c b/mm/vmscan.c
index 3783e45bfc92e2ce827db7825f323434dc910916..ceffb20bb8c94cb8eb5b8204ca2e99bef1dabb22 100644 (file)
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -1725,13 +1725,11 @@ static unsigned long isolate_lru_folios(unsigned long nr_to_scan,
        unsigned long nr_taken = 0;
        unsigned long nr_zone_taken[MAX_NR_ZONES] = { 0 };
        unsigned long nr_skipped[MAX_NR_ZONES] = { 0, };
-       unsigned long skipped = 0;
-       unsigned long scan, total_scan, nr_pages;
+       unsigned long skipped = 0, total_scan = 0, scan = 0;
+       unsigned long nr_pages;
        unsigned long max_nr_skipped = 0;
        LIST_HEAD(folios_skipped);
 
-       total_scan = 0;
-       scan = 0;
        while (scan < nr_to_scan && !list_empty(src)) {
                struct list_head *move_to = src;
                struct folio *folio;