tree 75f79d45eb89fb75014117b6fdc67bae1608f826
parent 4cd4b6d4e0372075f846feb85aea016cbdbfec4c
author Oleg Nesterov <oleg@tv-sign.ru> 1209541976 -0700
committer Linus Torvalds <torvalds@linux-foundation.org> 1209569376 -0700

signals: unify send_sigqueue/send_group_sigqueue completely

Suggested by Pavel Emelyanov.

send_sigqueue/send_group_sigqueue are only differ in how they lock ->siglock.
Unify them.  send_group_sigqueue() uses spin_lock() because it knows the task
can't exit, but in that case lock_task_sighand() can't fail and doesn't hurt.

Note that the "sig" argument is ignored, it is always equal to ->si_signo.

Signed-off-by: Pavel Emelyanov <xemul@openvz.org>
Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru>
Cc: Roland McGrath <roland@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>