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authorOleg Nesterov <oleg@redhat.com>2014-06-06 14:37:02 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2014-06-06 16:08:12 -0700
commit76e0a6f40b198f08fca69221c3d0112d1e9713a7 (patch)
tree94c9fd8483f34f6ba1ef88835fe876af16347ae2
parentb4e74264eb0b03f42097fa70a0766312156244a0 (diff)
downloadlinux-76e0a6f40b198f08fca69221c3d0112d1e9713a7.tar.bz2
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@redhat.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Al Viro <viro@ZenIV.linux.org.uk> Cc: David Woodhouse <dwmw2@infradead.org> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Ingo Molnar <mingo@kernel.org> Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com> Cc: Richard Weinberger <richard@nod.at> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Tejun Heo <tj@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
-rw-r--r--kernel/kmod.c5
1 files changed, 1 insertions, 4 deletions
diff --git a/kernel/kmod.c b/kernel/kmod.c
index 0ac67a5861c5..8637e041a247 100644
--- a/kernel/kmod.c
+++ b/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;