[merged] signals-change-wait_for_helper-to-use-kernel_sigaction.patch removed from -mm tree

[akpm@xxxxxxxxxxxxxxxxxxxx]

Subject: [merged] signals-change-wait_for_helper-to-use-kernel_sigaction.patch removed from -mm tree
To: oleg@xxxxxxxxxx,dwmw2@xxxxxxxxxxxxx,fweisbec@xxxxxxxxx,geert@xxxxxxxxxxxxxx,mathieu.desnoyers@xxxxxxxxxxxx,mingo@xxxxxxxxxx,peterz@xxxxxxxxxxxxx,richard@xxxxxx,rostedt@xxxxxxxxxxx,tj@xxxxxxxxxx,viro@xxxxxxxxxxxxxxxxxx,mm-commits@xxxxxxxxxxxxxxx
From: akpm@xxxxxxxxxxxxxxxxxxxx
Date: Mon, 09 Jun 2014 12:34:27 -0700


The patch titled
     Subject: signals: change wait_for_helper() to use kernel_sigaction()
has been removed from the -mm tree.  Its filename was
     signals-change-wait_for_helper-to-use-kernel_sigaction.patch

This patch was dropped because it was merged into mainline or a subsystem tree

------------------------------------------------------
From: Oleg Nesterov <oleg@xxxxxxxxxx>
Subject: signals: change wait_for_helper() to use kernel_sigaction()

Now that we have kernel_sigaction() we can change wait_for_helper() to use
it and cleans up the code a bit.

Signed-off-by: Oleg Nesterov <oleg@xxxxxxxxxx>
Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Cc: Al Viro <viro@xxxxxxxxxxxxxxxxxx>
Cc: David Woodhouse <dwmw2@xxxxxxxxxxxxx>
Cc: Frederic Weisbecker <fweisbec@xxxxxxxxx>
Cc: Geert Uytterhoeven <geert@xxxxxxxxxxxxxx>
Cc: Ingo Molnar <mingo@xxxxxxxxxx>
Cc: Mathieu Desnoyers <mathieu.desnoyers@xxxxxxxxxxxx>
Cc: Richard Weinberger <richard@xxxxxx>
Cc: Steven Rostedt <rostedt@xxxxxxxxxxx>
Cc: Tejun Heo <tj@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---

 kernel/kmod.c |    5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff -puN kernel/kmod.c~signals-change-wait_for_helper-to-use-kernel_sigaction kernel/kmod.c
--- a/kernel/kmod.c~signals-change-wait_for_helper-to-use-kernel_sigaction
+++ a/kernel/kmod.c
@@ -285,10 +285,7 @@ static int wait_for_helper(void *data)
 	pid_t pid;
 
 	/* If SIGCLD is ignored sys_wait4 won't populate the status. */
-	spin_lock_irq(&current->sighand->siglock);
-	current->sighand->action[SIGCHLD-1].sa.sa_handler = SIG_DFL;
-	spin_unlock_irq(&current->sighand->siglock);
-
+	kernel_sigaction(SIGCHLD, SIG_DFL);
 	pid = kernel_thread(____call_usermodehelper, sub_info, SIGCHLD);
 	if (pid < 0) {
 		sub_info->retval = pid;
_

Patches currently in -mm which might be from oleg@xxxxxxxxxx are

origin.patch
cpu-hotplug-smp-flush-any-pending-ipi-callbacks-before-cpu-offline.patch
linux-next.patch
kernel-watchdogc-print-traces-for-all-cpus-on-lockup-detection.patch
kernel-watchdogc-print-traces-for-all-cpus-on-lockup-detection-fix.patch
nmi-provide-the-option-to-issue-an-nmi-back-trace-to-every-cpu-but-current.patch
nmi-provide-the-option-to-issue-an-nmi-back-trace-to-every-cpu-but-current-fix.patch

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