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authorHaitao Huang <haitao.huang@linux.intel.com>2023-07-21 05:02:31 -0700
committerTejun Heo <tj@kernel.org>2023-07-21 08:10:06 -1000
commit714e08cc3ec564dc1717000f5a4c1f40ca8c8878 (patch)
tree38b6d65c545aeba8022187fe40e6839f2fddfadb /kernel/cgroup
parent32bf85c60ca3584a7ba3bef19da2779b73b2e7d6 (diff)
downloadlinux-714e08cc3ec564dc1717000f5a4c1f40ca8c8878.tar.gz
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>
Diffstat (limited to 'kernel/cgroup')
-rw-r--r--kernel/cgroup/misc.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/cgroup/misc.c b/kernel/cgroup/misc.c
index abbe9aa5cdd17b..79a3717a5803aa 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;