From: Oleg Nesterov Date: Wed, 29 Mar 2006 00:11:05 +0000 (-0800) Subject: [PATCH] don't use REMOVE_LINKS/SET_LINKS for reparenting X-Git-Tag: v2.6.17-rc1~196 X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=9b678ece42893b53aae5ed7cb8d7cb261cacb72c;p=linux-2.6 [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: Oleg Nesterov Cc: "Eric W. Biederman" Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- diff --git a/kernel/exit.c b/kernel/exit.c index df26c33037..5b5e8b6768 100644 --- a/kernel/exit.c +++ b/kernel/exit.c @@ -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; diff --git a/kernel/ptrace.c b/kernel/ptrace.c index d95a72c927..86a7f6c60c 100644 --- a/kernel/ptrace.c +++ b/kernel/ptrace.c @@ -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);