diff --git a/Documentation/fault-injection/fault-injection.txt b/Documentation/fault-injection/fault-injection.txt index 370ddcbc2b44173d9ddbafc48635b9ab4fa41df7..918972babcd8f2fb877babb7447d4e9476341af3 100644 --- a/Documentation/fault-injection/fault-injection.txt +++ b/Documentation/fault-injection/fault-injection.txt @@ -136,7 +136,8 @@ use the boot option: o proc entries -- /proc/self/task/<current-tid>/fail-nth: +- /proc/<pid>/fail-nth: +- /proc/self/task/<tid>/fail-nth: Write to this file of integer N makes N-th call in the task fail. Read from this file returns a integer value. A value of '0' indicates diff --git a/fs/proc/base.c b/fs/proc/base.c index 872a3f28bfe41b7dd6cf847047187a9d28ba63be..719c2e943ea1028f22cd2e400b7b6f9289ca6791 100644 --- a/fs/proc/base.c +++ b/fs/proc/base.c @@ -2962,6 +2962,7 @@ static const struct pid_entry tgid_base_stuff[] = { #endif #ifdef CONFIG_FAULT_INJECTION REG("make-it-fail", S_IRUGO|S_IWUSR, proc_fault_inject_operations), + REG("fail-nth", 0644, proc_fail_nth_operations), #endif #ifdef CONFIG_ELF_CORE REG("coredump_filter", S_IRUGO|S_IWUSR, proc_coredump_filter_operations),