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Subject[PATCH 05/16] ptrace: add @why to ptrace_stop()
Date
To prepare for cleanup of the interaction between group stop and
ptrace, add @why to ptrace_stop(). Existing users are updateda such
that there is no behavior change.

Signed-off-by: Tejun Heo <tj@kernel.org>
---
kernel/signal.c | 8 ++++----
1 files changed, 4 insertions(+), 4 deletions(-)
diff --git a/kernel/signal.c b/kernel/signal.c
index 5c334ec..2964642 100644
--- a/kernel/signal.c
+++ b/kernel/signal.c
@@ -1617,7 +1617,7 @@ static int sigkill_pending(struct task_struct *tsk)
* If we actually decide not to stop at all because the tracer
* is gone, we keep current->exit_code unless clear_code.
*/
-static void ptrace_stop(int exit_code, int clear_code, siginfo_t *info)
+static void ptrace_stop(int exit_code, int why, int clear_code, siginfo_t *info)
__releases(&current->sighand->siglock)
__acquires(&current->sighand->siglock)
{
@@ -1655,7 +1655,7 @@ static void ptrace_stop(int exit_code, int clear_code, siginfo_t *info)
spin_unlock_irq(&current->sighand->siglock);
read_lock(&tasklist_lock);
if (may_ptrace_stop()) {
- do_notify_parent_cldstop(current, CLD_TRAPPED);
+ do_notify_parent_cldstop(current, why);
/*
* Don't want to allow preemption here, because
* sys_ptrace() needs this task to be inactive.
@@ -1714,7 +1714,7 @@ void ptrace_notify(int exit_code)

/* Let the debugger run. */
spin_lock_irq(&current->sighand->siglock);
- ptrace_stop(exit_code, 1, &info);
+ ptrace_stop(exit_code, CLD_TRAPPED, 1, &info);
spin_unlock_irq(&current->sighand->siglock);
}

@@ -1795,7 +1795,7 @@ static int ptrace_signal(int signr, siginfo_t *info,
ptrace_signal_deliver(regs, cookie);

/* Let the debugger run. */
- ptrace_stop(signr, 0, info);
+ ptrace_stop(signr, CLD_TRAPPED, 0, info);

/* We're back. Did the debugger cancel the sig? */
signr = current->exit_code;
--
1.7.1


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