return 0;
err_charge:
+ for (j = i; j; j = parent_misc(j)) {
+ atomic_long_inc(&j->res[type].events);
+ cgroup_file_notify(&j->events_file);
+ }
+
for (j = cg; j != i; j = parent_misc(j))
misc_cg_cancel_charge(type, j, amount);
misc_cg_cancel_charge(type, i, amount);
return 0;
}
+static int misc_events_show(struct seq_file *sf, void *v)
+{
+ struct misc_cg *cg = css_misc(seq_css(sf));
+ unsigned long events, i;
+
+ for (i = 0; i < MISC_CG_RES_TYPES; i++) {
+ events = atomic_long_read(&cg->res[i].events);
+ if (READ_ONCE(misc_res_capacity[i]) || events)
+ seq_printf(sf, "%s.max %lu\n", misc_res_name[i], events);
+ }
+ return 0;
+}
+
/* Misc cgroup interface files */
static struct cftype misc_cg_files[] = {
{
.seq_show = misc_cg_capacity_show,
.flags = CFTYPE_ONLY_ON_ROOT,
},
+ {
+ .name = "events",
+ .flags = CFTYPE_NOT_ON_ROOT,
+ .file_offset = offsetof(struct misc_cg, events_file),
+ .seq_show = misc_events_show,
+ },
{}
};