From: Haitao Huang <haitao.huang@linux.intel.com>
Date: Fri, 21 Jul 2023 12:02:31 +0000 (-0700)
Subject: cgroup/misc: Store atomic64_t reads to u64
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=714e08cc3ec564dc1717000f5a4c1f40ca8c8878;p=linux.git

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 <haitao.huang@linux.intel.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
---

diff --git a/kernel/cgroup/misc.c b/kernel/cgroup/misc.c
index abbe9aa5cdd17..79a3717a5803a 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;