From 714e08cc3ec564dc1717000f5a4c1f40ca8c8878 Mon Sep 17 00:00:00 2001 From: Haitao Huang Date: Fri, 21 Jul 2023 05:02:31 -0700 Subject: [PATCH] cgroup/misc: Store atomic64_t reads to u64 Change 'new_usage' type to u64 so it can be compared with unsigned 'max' and 'capacity' properly even if the value crosses the signed boundary. Signed-off-by: Haitao Huang Signed-off-by: Tejun Heo --- kernel/cgroup/misc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/kernel/cgroup/misc.c b/kernel/cgroup/misc.c index abbe9aa5cdd1..79a3717a5803 100644 --- a/kernel/cgroup/misc.c +++ b/kernel/cgroup/misc.c @@ -142,7 +142,7 @@ int misc_cg_try_charge(enum misc_res_type type, struct misc_cg *cg, u64 amount) struct misc_cg *i, *j; int ret; struct misc_res *res; - s64 new_usage; + u64 new_usage; if (!(valid_type(type) && cg && READ_ONCE(misc_res_capacity[type]))) return -EINVAL;