tree 103922ef0f185daebf5a3e8029663ab78eaed363
parent c70a626d3eba373514c72287c93588b6974a0059
author Oleg Nesterov <oleg@redhat.com> 1274910182 -0700
committer Linus Torvalds <torvalds@linux-foundation.org> 1274976765 -0700

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>