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Commit f96a795d authored by Eric W. Biederman's avatar Eric W. Biederman Committed by Linus Torvalds
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[PATCH] do_tty_hangup: use group_send_sig_info not send_group_sig_info 



We already have the tasklist_lock so there is no need for us to reacquire it
with send_group_sig_info.  reader/writer locks allow multiple readers and thus
recursion so the old code was ok just wastful.

Signed-off-by: default avatarEric W. Biederman <ebiederm@xmission.com>
Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
parent 6c99c5cb

drivers/char/tty_io.c

+2 −2
Original line number Diff line number Diff line
@@ -1094,8 +1094,8 @@ static void do_tty_hangup(void *data) 
				p->signal->tty = NULL;

			if (!p->signal->leader)

				continue;

			send_group_sig_info(SIGHUP, SEND_SIG_PRIV, p);

			send_group_sig_info(SIGCONT, SEND_SIG_PRIV, p);

			group_send_sig_info(SIGHUP, SEND_SIG_PRIV, p);

			group_send_sig_info(SIGCONT, SEND_SIG_PRIV, p);

			if (tty->pgrp > 0)

				p->signal->tty_old_pgrp = tty->pgrp;

		} while_each_task_pid(tty->session, PIDTYPE_SID, p);