From: Eric W. Biederman <ebiederm@xmission.com>
Date: Sat, 4 Aug 2018 01:10:54 +0000 (-0500)
Subject: fork: Skip setting TIF_SIGPENDING in ptrace_init_task
X-Git-Tag: v4.19-rc1~70^2~3
X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=commitdiff_plain;h=4390e9eadbbb6774b7ba03fde0a0fdf3f07db4cd;p=linux.git

fork: Skip setting TIF_SIGPENDING in ptrace_init_task

The code in calculate_sigpending will now handle this so
it is just redundant and possibly a little confusing
to continue setting TIF_SIGPENDING in ptrace_init_task.

Suggested-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
---

diff --git a/include/linux/ptrace.h b/include/linux/ptrace.h
index 037bf0ef1ae9..4f36431c380b 100644
--- a/include/linux/ptrace.h
+++ b/include/linux/ptrace.h
@@ -214,8 +214,6 @@ static inline void ptrace_init_task(struct task_struct *child, bool ptrace)
 			task_set_jobctl_pending(child, JOBCTL_TRAP_STOP);
 		else
 			sigaddset(&child->pending.signal, SIGSTOP);
-
-		set_tsk_thread_flag(child, TIF_SIGPENDING);
 	}
 	else
 		child->ptracer_cred = NULL;