1*b2441318SGreg Kroah-Hartman /* SPDX-License-Identifier: GPL-2.0 */ 28d438288SAkinobu Mita #include <linux/atomic.h> 38d438288SAkinobu Mita #include <linux/debugfs.h> 48d438288SAkinobu Mita #include <linux/notifier.h> 58d438288SAkinobu Mita 68d438288SAkinobu Mita struct notifier_err_inject_action { 78d438288SAkinobu Mita unsigned long val; 88d438288SAkinobu Mita int error; 98d438288SAkinobu Mita const char *name; 108d438288SAkinobu Mita }; 118d438288SAkinobu Mita 128d438288SAkinobu Mita #define NOTIFIER_ERR_INJECT_ACTION(action) \ 138d438288SAkinobu Mita .name = #action, .val = (action), 148d438288SAkinobu Mita 158d438288SAkinobu Mita struct notifier_err_inject { 168d438288SAkinobu Mita struct notifier_block nb; 178d438288SAkinobu Mita struct notifier_err_inject_action actions[]; 188d438288SAkinobu Mita /* The last slot must be terminated with zero sentinel */ 198d438288SAkinobu Mita }; 208d438288SAkinobu Mita 218d438288SAkinobu Mita extern struct dentry *notifier_err_inject_dir; 228d438288SAkinobu Mita 238d438288SAkinobu Mita extern struct dentry *notifier_err_inject_init(const char *name, 248d438288SAkinobu Mita struct dentry *parent, struct notifier_err_inject *err_inject, 258d438288SAkinobu Mita int priority); 26