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-rw-r--r--kernel/ptrace.c10
1 files changed, 8 insertions, 2 deletions
diff --git a/kernel/ptrace.c b/kernel/ptrace.c
index 0c37d999c8b8..7f05f3a1267b 100644
--- a/kernel/ptrace.c
+++ b/kernel/ptrace.c
@@ -25,6 +25,12 @@
#include <linux/hw_breakpoint.h>
+static int ptrace_trapping_sleep_fn(void *flags)
+{
+ schedule();
+ return 0;
+}
+
/*
* ptrace a task: make the debugger its new parent and
* move it to the ptrace list.
@@ -270,8 +276,8 @@ unlock_creds:
mutex_unlock(&task->signal->cred_guard_mutex);
out:
if (!retval)
- wait_event(current->signal->wait_chldexit,
- !(task->jobctl & JOBCTL_TRAPPING));
+ wait_on_bit(&task->jobctl, JOBCTL_TRAPPING_BIT,
+ ptrace_trapping_sleep_fn, TASK_UNINTERRUPTIBLE);
return retval;
}