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authorOleg Nesterov <oleg@redhat.com>2010-05-26 14:43:02 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2010-05-27 09:12:45 -0700
commit363da4022c2753bf4b4b54a1bb9e4527fdcb9d5d (patch)
tree103922ef0f185daebf5a3e8029663ab78eaed363
parentc70a626d3eba373514c72287c93588b6974a0059 (diff)
call_usermodehelper: no need to unblock signals
____call_usermodehelper() correctly calls flush_signal_handlers() to set SIG_DFL, but sigemptyset(->blocked) and recalc_sigpending() are not needed. This kthread was forked by workqueue thread, all signals must be unblocked and ignored, no pending signal is possible. Signed-off-by: Oleg Nesterov <oleg@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
-rw-r--r--kernel/kmod.c3
1 files changed, 0 insertions, 3 deletions
diff --git a/kernel/kmod.c b/kernel/kmod.c
index 6194ec2f737b..7efba6f8e3ec 100644
--- a/kernel/kmod.c
+++ b/kernel/kmod.c
@@ -134,11 +134,8 @@ static int ____call_usermodehelper(void *data)
struct subprocess_info *sub_info = data;
int retval;
- /* Unblock all signals */
spin_lock_irq(&current->sighand->siglock);
flush_signal_handlers(current, 1);
- sigemptyset(&current->blocked);
- recalc_sigpending();
spin_unlock_irq(&current->sighand->siglock);
/* We can run anywhere, unlike our parent keventd(). */