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misc_cgroup: remove error log to avoid log flood 

In scenarios where containers are frequently created and deleted,
a large number of error logs maybe generated. The logs only show
which node is about to go over the max limit, not the node which
resource request failed. As misc.events has provided relevant
information, maybe we can remove this log.

Signed-off-by: Chunguang Xu <brookxu@tencent.com>
Reviewed-by: Michal Koutný <mkoutny@suse.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
This commit is contained in:
Chunguang Xu 2021-09-17 20:44:15 +08:00 committed by Tejun Heo
parent f279294b32
commit b03357528f
2 changed files with 0 additions and 8 deletions
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1
include/linux/misc_cgroup.h
View File

@ -37,7 +37,6 @@ struct misc_res {
unsigned long max;
atomic_long_t usage;
atomic_long_t events;
bool failed;
};
/**

7
kernel/cgroup/misc.c
View File

@ -157,13 +157,6 @@ int misc_cg_try_charge(enum misc_res_type type, struct misc_cg *cg,
new_usage = atomic_long_add_return(amount, &res->usage);
if (new_usage > READ_ONCE(res->max) ||
new_usage > READ_ONCE(misc_res_capacity[type])) {
if (!res->failed) {
pr_info("cgroup: charge rejected by the misc controller for %s resource in ",
misc_res_name[type]);
pr_cont_cgroup_path(i->css.cgroup);
pr_cont("\n");
res->failed = true;
}
ret = -EBUSY;
goto err_charge;
}