ufs/core/ufs-fault-injection.c

1 // SPDX-License-Identifier: GPL-2.0-or-later
5 #include <linux/fault-inject.h>
9 #include "ufs-fault-injection.h"
22  * For more details about fault injection, please refer to
23  * Documentation/fault-injection/fault-injection.rst.
28 	"Fault injection. trigger_eh=<interval>,<probability>,<space>,<times>");
34 	"Fault injection. timeout=<interval>,<probability>,<space>,<times>");
39 	const char *fault_str = kp->arg;  in ufs_fault_get()
48 	if (kp->arg == g_trigger_eh_str)  in ufs_fault_set()
50 	else if (kp->arg == g_timeout_str)  in ufs_fault_set()
54 		return -EINVAL;  in ufs_fault_set()
57 		return -EINVAL;  in ufs_fault_set()
59 	strscpy(kp->arg, val, FAULT_INJ_STR_SIZE);  in ufs_fault_set()
66 	hba->trigger_eh_attr = ufs_trigger_eh_attr;  in ufs_fault_inject_hba_init()
67 	hba->timeout_attr = ufs_timeout_attr;  in ufs_fault_inject_hba_init()
69 	fault_create_debugfs_attr("trigger_eh_inject", hba->debugfs_root, &hba->trigger_eh_attr);  in ufs_fault_inject_hba_init()
70 	fault_create_debugfs_attr("timeout_inject", hba->debugfs_root, &hba->timeout_attr);  in ufs_fault_inject_hba_init()
76 	return should_fail(&hba->trigger_eh_attr, 1);  in ufs_trigger_eh()
81 	return should_fail(&hba->timeout_attr, 1);  in ufs_fail_completion()