Commit 9b678ece authored by Oleg Nesterov's avatar Oleg Nesterov Committed by Linus Torvalds
Browse files

[PATCH] don't use REMOVE_LINKS/SET_LINKS for reparenting



There are places where kernel uses REMOVE_LINKS/SET_LINKS while changing
process's ->parent.  Use add_parent/remove_parent instead, they don't abuse
of global process list.
Signed-off-by: default avatarOleg Nesterov <oleg@tv-sign.ru>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
parent 8fafabd8
......@@ -238,10 +238,10 @@ static void reparent_to_init(void)
ptrace_unlink(current);
/* Reparent to init */
REMOVE_LINKS(current);
remove_parent(current);
current->parent = child_reaper;
current->real_parent = child_reaper;
SET_LINKS(current);
add_parent(current);
/* Set the exit signal to SIGCHLD so we signal init on exit */
current->exit_signal = SIGCHLD;
......
......@@ -35,9 +35,9 @@ void __ptrace_link(task_t *child, task_t *new_parent)
if (child->parent == new_parent)
return;
list_add(&child->ptrace_list, &child->parent->ptrace_children);
REMOVE_LINKS(child);
remove_parent(child);
child->parent = new_parent;
SET_LINKS(child);
add_parent(child);
}
/*
......@@ -77,9 +77,9 @@ void __ptrace_unlink(task_t *child)
child->ptrace = 0;
if (!list_empty(&child->ptrace_list)) {
list_del_init(&child->ptrace_list);
REMOVE_LINKS(child);
remove_parent(child);
child->parent = child->real_parent;
SET_LINKS(child);
add_parent(child);
}
ptrace_untrace(child);
......
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