X-Git-Url: http://pilppa.org/gitweb/gitweb.cgi?a=blobdiff_plain;f=kernel%2Fpid.c;h=c6e3f9ffff87e62afa5aa93233833b8642144dd9;hb=1595f452f3d8daa066bfd3ba4120754bed3329e1;hp=78f2aee90f541eb72b1616d1fc7405de865920fe;hpb=e0cc09e295f346b7921e921f385fe5213472316a;p=linux-2.6-omap-h63xx.git

diff --git a/kernel/pid.c b/kernel/pid.c
index 78f2aee90f5..c6e3f9ffff8 100644
--- a/kernel/pid.c
+++ b/kernel/pid.c
@@ -27,11 +27,13 @@
 #include <linux/bootmem.h>
 #include <linux/hash.h>
 #include <linux/pid_namespace.h>
+#include <linux/init_task.h>
 
 #define pid_hashfn(nr) hash_long((unsigned long)nr, pidhash_shift)
 static struct hlist_head *pid_hash;
 static int pidhash_shift;
 static struct kmem_cache *pid_cachep;
+struct pid init_struct_pid = INIT_STRUCT_PID;
 
 int pid_max = PID_MAX_DEFAULT;
 
@@ -247,13 +249,16 @@ struct pid * fastcall find_pid(int nr)
 }
 EXPORT_SYMBOL_GPL(find_pid);
 
-int fastcall attach_pid(struct task_struct *task, enum pid_type type, int nr)
+/*
+ * attach_pid() must be called with the tasklist_lock write-held.
+ */
+int fastcall attach_pid(struct task_struct *task, enum pid_type type,
+		struct pid *pid)
 {
 	struct pid_link *link;
-	struct pid *pid;
 
 	link = &task->pids[type];
-	link->pid = pid = find_pid(nr);
+	link->pid = pid;
 	hlist_add_head_rcu(&link->node, &pid->tasks[type]);
 
 	return 0;
@@ -360,16 +365,11 @@ struct pid *find_ge_pid(int nr)
 }
 EXPORT_SYMBOL_GPL(find_get_pid);
 
-int copy_pid_ns(int flags, struct task_struct *tsk)
+struct pid_namespace *copy_pid_ns(unsigned long flags, struct pid_namespace *old_ns)
 {
-	struct pid_namespace *old_ns = tsk->nsproxy->pid_ns;
-	int err = 0;
-
-	if (!old_ns)
-		return 0;
-
+	BUG_ON(!old_ns);
 	get_pid_ns(old_ns);
-	return err;
+	return old_ns;
 }
 
 void free_pid_ns(struct kref *kref)
@@ -412,7 +412,5 @@ void __init pidmap_init(void)
 	set_bit(0, init_pid_ns.pidmap[0].page);
 	atomic_dec(&init_pid_ns.pidmap[0].nr_free);
 
-	pid_cachep = kmem_cache_create("pid", sizeof(struct pid),
-					__alignof__(struct pid),
-					SLAB_PANIC, NULL, NULL);
+	pid_cachep = KMEM_CACHE(pid, SLAB_PANIC);
 }