X-Git-Url: http://git.rot13.org/?a=blobdiff_plain;f=ipc%2Futil.c;h=7536a7292d4821ae7b64b4f79f6f32f6657c40da;hb=f7e4217b007d1f73e7e3cf10ba4fea4a608c603f;hp=0b652387d169a6b6af1609071bfb3aa2e8a6b954;hpb=eaf60d6924759eb2a249c0b568533a90c238061b;p=powerpc.git

diff --git a/ipc/util.c b/ipc/util.c
index 0b652387d1..7536a7292d 100644
--- a/ipc/util.c
+++ b/ipc/util.c
@@ -21,7 +21,6 @@
 #include <linux/shm.h>
 #include <linux/init.h>
 #include <linux/msg.h>
-#include <linux/smp_lock.h>
 #include <linux/vmalloc.h>
 #include <linux/slab.h>
 #include <linux/capability.h>
@@ -85,53 +84,20 @@ err_mem:
 	return ERR_PTR(err);
 }
 
-int unshare_ipcs(unsigned long unshare_flags, struct ipc_namespace **new_ipc)
+struct ipc_namespace *copy_ipcs(unsigned long flags, struct ipc_namespace *ns)
 {
-	struct ipc_namespace *new;
-
-	if (unshare_flags & CLONE_NEWIPC) {
-		if (!capable(CAP_SYS_ADMIN))
-			return -EPERM;
-
-		new = clone_ipc_ns(current->nsproxy->ipc_ns);
-		if (IS_ERR(new))
-			return PTR_ERR(new);
-
-		*new_ipc = new;
-	}
-
-	return 0;
-}
-
-int copy_ipcs(unsigned long flags, struct task_struct *tsk)
-{
-	struct ipc_namespace *old_ns = tsk->nsproxy->ipc_ns;
 	struct ipc_namespace *new_ns;
-	int err = 0;
 
-	if (!old_ns)
-		return 0;
-
-	get_ipc_ns(old_ns);
+	BUG_ON(!ns);
+	get_ipc_ns(ns);
 
 	if (!(flags & CLONE_NEWIPC))
-		return 0;
+		return ns;
 
-	if (!capable(CAP_SYS_ADMIN)) {
-		err = -EPERM;
-		goto out;
-	}
+	new_ns = clone_ipc_ns(ns);
 
-	new_ns = clone_ipc_ns(old_ns);
-	if (!new_ns) {
-		err = -ENOMEM;
-		goto out;
-	}
-
-	tsk->nsproxy->ipc_ns = new_ns;
-out:
-	put_ipc_ns(old_ns);
-	return err;
+	put_ipc_ns(ns);
+	return new_ns;
 }
 
 void free_ipc_ns(struct kref *kref)
@@ -145,11 +111,11 @@ void free_ipc_ns(struct kref *kref)
 	kfree(ns);
 }
 #else
-int copy_ipcs(unsigned long flags, struct task_struct *tsk)
+struct ipc_namespace *copy_ipcs(unsigned long flags, struct ipc_namespace *ns)
 {
 	if (flags & CLONE_NEWIPC)
-		return -EINVAL;
-	return 0;
+		return ERR_PTR(-EINVAL);
+	return ns;
 }
 #endif