X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=fs%2Fnamespace.c;h=b4febb29d3bb3d855793daa1b3f07cb303e1f6ea;hb=7409b7132ca96d01b373541d788e8c5893bec1f3;hp=fe59bd145d214b0157b75dd7b441c91e24dcb56c;hpb=fdcc205fb9ba006bcd37f72e1b1b904704257351;p=pandora-kernel.git

diff --git a/fs/namespace.c b/fs/namespace.c
index fe59bd145d21..b4febb29d3bb 100644
--- a/fs/namespace.c
+++ b/fs/namespace.c
@@ -934,8 +934,8 @@ int mnt_had_events(struct proc_mounts *p)
 	int res = 0;
 
 	br_read_lock(vfsmount_lock);
-	if (p->event != ns->event) {
-		p->event = ns->event;
+	if (p->m.poll_event != ns->event) {
+		p->m.poll_event = ns->event;
 		res = 1;
 	}
 	br_read_unlock(vfsmount_lock);
@@ -1757,7 +1757,7 @@ static int do_loopback(struct path *path, char *old_name,
 		return err;
 	if (!old_name || !*old_name)
 		return -EINVAL;
-	err = kern_path(old_name, LOOKUP_FOLLOW, &old_path);
+	err = kern_path(old_name, LOOKUP_FOLLOW|LOOKUP_AUTOMOUNT, &old_path);
 	if (err)
 		return err;
 
@@ -2721,6 +2721,25 @@ EXPORT_SYMBOL(put_mnt_ns);
 
 struct vfsmount *kern_mount_data(struct file_system_type *type, void *data)
 {
-	return vfs_kern_mount(type, MS_KERNMOUNT, type->name, data);
+	struct vfsmount *mnt;
+	mnt = vfs_kern_mount(type, MS_KERNMOUNT, type->name, data);
+	if (!IS_ERR(mnt)) {
+		/*
+		 * it is a longterm mount, don't release mnt until
+		 * we unmount before file sys is unregistered
+		*/
+		mnt_make_longterm(mnt);
+	}
+	return mnt;
 }
 EXPORT_SYMBOL_GPL(kern_mount_data);
+
+void kern_unmount(struct vfsmount *mnt)
+{
+	/* release long term mount so mount point can be released */
+	if (!IS_ERR_OR_NULL(mnt)) {
+		mnt_make_shortterm(mnt);
+		mntput(mnt);
+	}
+}
+EXPORT_SYMBOL(kern_unmount);