Blame view
lib/cpu-notifier-error-inject.c
1.18 KB
c9d221f86 fault-injection: ... |
1 |
#include <linux/kernel.h> |
c9d221f86 fault-injection: ... |
2 |
#include <linux/module.h> |
f5a9f52e2 cpu: rewrite cpu-... |
3 |
#include <linux/cpu.h> |
c9d221f86 fault-injection: ... |
4 |
|
f5a9f52e2 cpu: rewrite cpu-... |
5 |
#include "notifier-error-inject.h" |
c9d221f86 fault-injection: ... |
6 |
|
f5a9f52e2 cpu: rewrite cpu-... |
7 |
static int priority; |
c9d221f86 fault-injection: ... |
8 9 |
module_param(priority, int, 0); MODULE_PARM_DESC(priority, "specify cpu notifier priority"); |
f5a9f52e2 cpu: rewrite cpu-... |
10 11 12 13 14 15 16 |
static struct notifier_err_inject cpu_notifier_err_inject = { .actions = { { NOTIFIER_ERR_INJECT_ACTION(CPU_UP_PREPARE) }, { NOTIFIER_ERR_INJECT_ACTION(CPU_UP_PREPARE_FROZEN) }, { NOTIFIER_ERR_INJECT_ACTION(CPU_DOWN_PREPARE) }, { NOTIFIER_ERR_INJECT_ACTION(CPU_DOWN_PREPARE_FROZEN) }, {} |
c9d221f86 fault-injection: ... |
17 |
} |
c9d221f86 fault-injection: ... |
18 |
}; |
f5a9f52e2 cpu: rewrite cpu-... |
19 |
static struct dentry *dir; |
c9d221f86 fault-injection: ... |
20 21 |
static int err_inject_init(void) { |
f5a9f52e2 cpu: rewrite cpu-... |
22 23 24 25 26 27 28 29 30 31 |
int err; dir = notifier_err_inject_init("cpu", notifier_err_inject_dir, &cpu_notifier_err_inject, priority); if (IS_ERR(dir)) return PTR_ERR(dir); err = register_hotcpu_notifier(&cpu_notifier_err_inject.nb); if (err) debugfs_remove_recursive(dir); |
c9d221f86 fault-injection: ... |
32 |
|
f5a9f52e2 cpu: rewrite cpu-... |
33 |
return err; |
c9d221f86 fault-injection: ... |
34 35 36 37 |
} static void err_inject_exit(void) { |
f5a9f52e2 cpu: rewrite cpu-... |
38 39 |
unregister_hotcpu_notifier(&cpu_notifier_err_inject.nb); debugfs_remove_recursive(dir); |
c9d221f86 fault-injection: ... |
40 41 42 43 44 45 46 47 |
} module_init(err_inject_init); module_exit(err_inject_exit); MODULE_DESCRIPTION("CPU notifier error injection module"); MODULE_LICENSE("GPL"); MODULE_AUTHOR("Akinobu Mita <akinobu.mita@gmail.com>"); |