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authorPaul Mackerras <paulus@samba.org>2006-03-17 12:01:19 +1100
committerPaul Mackerras <paulus@samba.org>2006-03-17 12:01:19 +1100
commit23dd64011285010ac291f7dddf6e287bdb43a0ad (patch)
tree0e4f4569d38d82f4dceb4150d5ad940e0fd5f24f /kernel
parent516450179454de9e689e0a53ed8f34b896e8651c (diff)
parent485ff09990416c75ae9593ddc71619939ab9dd51 (diff)
Merge ../linux-2.6
Diffstat (limited to 'kernel')
-rw-r--r--kernel/fork.c10
-rw-r--r--kernel/sched.c7
2 files changed, 9 insertions, 8 deletions
diff --git a/kernel/fork.c b/kernel/fork.c
index fbea12d7a94..ccdfbb16c86 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -108,8 +108,10 @@ void free_task(struct task_struct *tsk)
}
EXPORT_SYMBOL(free_task);
-void __put_task_struct(struct task_struct *tsk)
+void __put_task_struct_cb(struct rcu_head *rhp)
{
+ struct task_struct *tsk = container_of(rhp, struct task_struct, rcu);
+
WARN_ON(!(tsk->exit_state & (EXIT_DEAD | EXIT_ZOMBIE)));
WARN_ON(atomic_read(&tsk->usage));
WARN_ON(tsk == current);
@@ -1060,6 +1062,12 @@ static task_t *copy_process(unsigned long clone_flags,
p->clear_child_tid = (clone_flags & CLONE_CHILD_CLEARTID) ? child_tidptr: NULL;
/*
+ * sigaltstack should be cleared when sharing the same VM
+ */
+ if ((clone_flags & (CLONE_VM|CLONE_VFORK)) == CLONE_VM)
+ p->sas_ss_sp = p->sas_ss_size = 0;
+
+ /*
* Syscall tracing should be turned off in the child regardless
* of CLONE_PTRACE.
*/
diff --git a/kernel/sched.c b/kernel/sched.c
index e82c99f1db6..4d46e90f59c 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -178,13 +178,6 @@ static unsigned int task_timeslice(task_t *p)
#define task_hot(p, now, sd) ((long long) ((now) - (p)->last_ran) \
< (long long) (sd)->cache_hot_time)
-void __put_task_struct_cb(struct rcu_head *rhp)
-{
- __put_task_struct(container_of(rhp, struct task_struct, rcu));
-}
-
-EXPORT_SYMBOL_GPL(__put_task_struct_cb);
-
/*
* These are the runqueue data structures:
*/