Commit aacc9094 authored by Oleg Nesterov's avatar Oleg Nesterov Committed by Linus Torvalds

[PATCH] do_group_exit: don't take tasklist_lock

do_group_exit() takes tasklist_lock for zap_other_threads(), this is unneeded
now.
Signed-off-by: default avatarOleg Nesterov <oleg@tv-sign.ru>
Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
parent a122b341
......@@ -985,7 +985,6 @@ do_group_exit(int exit_code)
else if (!thread_group_empty(current)) {
struct signal_struct *const sig = current->signal;
struct sighand_struct *const sighand = current->sighand;
read_lock(&tasklist_lock);
spin_lock_irq(&sighand->siglock);
if (sig->flags & SIGNAL_GROUP_EXIT)
/* Another thread got here before we took the lock. */
......@@ -995,7 +994,6 @@ do_group_exit(int exit_code)
zap_other_threads(current);
}
spin_unlock_irq(&sighand->siglock);
read_unlock(&tasklist_lock);
}
do_exit(exit_code);
......
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