Merge git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6

8 files changed, 57 insertions, 33 deletions

diff --git a/drivers/base/bus.c b/drivers/base/bus.c
index 973bf2ad4e0..63c143e54a5 100644
--- a/drivers/base/bus.c
+++ b/drivers/base/bus.c
@@ -689,15 +689,19 @@ int bus_add_driver(struct device_driver *drv)
 		printk(KERN_ERR "%s: driver_add_attrs(%s) failed\n",
 			__func__, drv->name);
 	}
-	error = add_bind_files(drv);
-	if (error) {
-		/* Ditto */
-		printk(KERN_ERR "%s: add_bind_files(%s) failed\n",
-			__func__, drv->name);
+
+	if (!drv->suppress_bind_attrs) {
+		error = add_bind_files(drv);
+		if (error) {
+			/* Ditto */
+			printk(KERN_ERR "%s: add_bind_files(%s) failed\n",
+				__func__, drv->name);
+		}
 	}
 
 	kobject_uevent(&priv->kobj, KOBJ_ADD);
 	return 0;
+
 out_unregister:
 	kfree(drv->p);
 	drv->p = NULL;
@@ -720,7 +724,8 @@ void bus_remove_driver(struct device_driver *drv)
 	if (!drv->bus)
 		return;
 
-	remove_bind_files(drv);
+	if (!drv->suppress_bind_attrs)
+		remove_bind_files(drv);
 	driver_remove_attrs(drv->bus, drv);
 	driver_remove_file(drv, &driver_attr_uevent);
 	klist_remove(&drv->p->knode_bus);
diff --git a/drivers/base/core.c b/drivers/base/core.c
index 390e664ec1c..6bee6af8d8e 100644
--- a/drivers/base/core.c
+++ b/drivers/base/core.c
@@ -166,13 +166,16 @@ static int dev_uevent(struct kset *kset, struct kobject *kobj,
 	if (MAJOR(dev->devt)) {
 		const char *tmp;
 		const char *name;
+		mode_t mode = 0;
 
 		add_uevent_var(env, "MAJOR=%u", MAJOR(dev->devt));
 		add_uevent_var(env, "MINOR=%u", MINOR(dev->devt));
-		name = device_get_nodename(dev, &tmp);
+		name = device_get_devnode(dev, &mode, &tmp);
 		if (name) {
 			add_uevent_var(env, "DEVNAME=%s", name);
 			kfree(tmp);
+			if (mode)
+				add_uevent_var(env, "DEVMODE=%#o", mode & 0777);
 		}
 	}
 
@@ -1148,8 +1151,9 @@ static struct device *next_device(struct klist_iter *i)
 }
 
 /**
- * device_get_nodename - path of device node file
+ * device_get_devnode - path of device node file
  * @dev: device
+ * @mode: returned file access mode
  * @tmp: possibly allocated string
  *
  * Return the relative path of a possible device node.
@@ -1157,21 +1161,22 @@ static struct device *next_device(struct klist_iter *i)
  * a name. This memory is returned in tmp and needs to be
  * freed by the caller.
  */
-const char *device_get_nodename(struct device *dev, const char **tmp)
+const char *device_get_devnode(struct device *dev,
+			       mode_t *mode, const char **tmp)
 {
 	char *s;
 
 	*tmp = NULL;
 
 	/* the device type may provide a specific name */
-	if (dev->type && dev->type->nodename)
-		*tmp = dev->type->nodename(dev);
+	if (dev->type && dev->type->devnode)
+		*tmp = dev->type->devnode(dev, mode);
 	if (*tmp)
 		return *tmp;
 
 	/* the class may provide a specific name */
-	if (dev->class && dev->class->nodename)
-		*tmp = dev->class->nodename(dev);
+	if (dev->class && dev->class->devnode)
+		*tmp = dev->class->devnode(dev, mode);
 	if (*tmp)
 		return *tmp;
 
diff --git a/drivers/base/devtmpfs.c b/drivers/base/devtmpfs.c
index fd488ad4263..a1cb5afe680 100644
--- a/drivers/base/devtmpfs.c
+++ b/drivers/base/devtmpfs.c
@@ -6,9 +6,10 @@
  * During bootup, before any driver core device is registered,
  * devtmpfs, a tmpfs-based filesystem is created. Every driver-core
  * device which requests a device node, will add a node in this
- * filesystem. The node is named after the the name of the device,
- * or the susbsytem can provide a custom name. All devices are
- * owned by root and have a mode of 0600.
+ * filesystem.
+ * By default, all devices are named after the the name of the
+ * device, owned by root and have a default mode of 0600. Subsystems
+ * can overwrite the default setting if needed.
  */
 
 #include <linux/kernel.h>
@@ -20,6 +21,7 @@
 #include <linux/fs.h>
 #include <linux/shmem_fs.h>
 #include <linux/cred.h>
+#include <linux/sched.h>
 #include <linux/init_task.h>
 
 static struct vfsmount *dev_mnt;
@@ -134,7 +136,7 @@ int devtmpfs_create_node(struct device *dev)
 	const char *tmp = NULL;
 	const char *nodename;
 	const struct cred *curr_cred;
-	mode_t mode;
+	mode_t mode = 0;
 	struct nameidata nd;
 	struct dentry *dentry;
 	int err;
@@ -142,14 +144,16 @@ int devtmpfs_create_node(struct device *dev)
 	if (!dev_mnt)
 		return 0;
 
-	nodename = device_get_nodename(dev, &tmp);
+	nodename = device_get_devnode(dev, &mode, &tmp);
 	if (!nodename)
 		return -ENOMEM;
 
+	if (mode == 0)
+		mode = 0600;
 	if (is_blockdev(dev))
-		mode = S_IFBLK|0600;
+		mode |= S_IFBLK;
 	else
-		mode = S_IFCHR|0600;
+		mode |= S_IFCHR;
 
 	curr_cred = override_creds(&init_cred);
 	err = vfs_path_lookup(dev_mnt->mnt_root, dev_mnt,
@@ -165,8 +169,12 @@ int devtmpfs_create_node(struct device *dev)
 
 	dentry = lookup_create(&nd, 0);
 	if (!IS_ERR(dentry)) {
+		int umask;
+
+		umask = sys_umask(0000);
 		err = vfs_mknod(nd.path.dentry->d_inode,
 				dentry, mode, dev->devt);
+		sys_umask(umask);
 		/* mark as kernel created inode */
 		if (!err)
 			dentry->d_inode->i_private = &dev_mnt;
@@ -271,7 +279,7 @@ int devtmpfs_delete_node(struct device *dev)
 	if (!dev_mnt)
 		return 0;
 
-	nodename = device_get_nodename(dev, &tmp);
+	nodename = device_get_devnode(dev, NULL, &tmp);
 	if (!nodename)
 		return -ENOMEM;
 
diff --git a/drivers/base/driver.c b/drivers/base/driver.c
index ed2ebd3c287..f367885a764 100644
--- a/drivers/base/driver.c
+++ b/drivers/base/driver.c
@@ -236,7 +236,7 @@ int driver_register(struct device_driver *drv)
 		put_driver(other);
 		printk(KERN_ERR "Error: Driver '%s' is already registered, "
 			"aborting...\n", drv->name);
-		return -EEXIST;
+		return -EBUSY;
 	}
 
 	ret = bus_add_driver(drv);
diff --git a/drivers/base/node.c b/drivers/base/node.c
index 91d4087b403..1fe5536d404 100644
--- a/drivers/base/node.c
+++ b/drivers/base/node.c
@@ -85,6 +85,8 @@ static ssize_t node_read_meminfo(struct sys_device * dev,
 		       "Node %d FilePages:      %8lu kB\n"
 		       "Node %d Mapped:         %8lu kB\n"
 		       "Node %d AnonPages:      %8lu kB\n"
+		       "Node %d Shmem:          %8lu kB\n"
+		       "Node %d KernelStack:    %8lu kB\n"
 		       "Node %d PageTables:     %8lu kB\n"
 		       "Node %d NFS_Unstable:   %8lu kB\n"
 		       "Node %d Bounce:         %8lu kB\n"
@@ -116,6 +118,9 @@ static ssize_t node_read_meminfo(struct sys_device * dev,
 		       nid, K(node_page_state(nid, NR_FILE_PAGES)),
 		       nid, K(node_page_state(nid, NR_FILE_MAPPED)),
 		       nid, K(node_page_state(nid, NR_ANON_PAGES)),
+		       nid, K(node_page_state(nid, NR_SHMEM)),
+		       nid, node_page_state(nid, NR_KERNEL_STACK) *
+				THREAD_SIZE / 1024,
 		       nid, K(node_page_state(nid, NR_PAGETABLE)),
 		       nid, K(node_page_state(nid, NR_UNSTABLE_NFS)),
 		       nid, K(node_page_state(nid, NR_BOUNCE)),
diff --git a/drivers/base/platform.c b/drivers/base/platform.c
index ed156a13aa4..4fa954b07ac 100644
--- a/drivers/base/platform.c
+++ b/drivers/base/platform.c
@@ -521,11 +521,15 @@ int __init_or_module platform_driver_probe(struct platform_driver *drv,
 {
 	int retval, code;
 
+	/* make sure driver won't have bind/unbind attributes */
+	drv->driver.suppress_bind_attrs = true;
+
 	/* temporary section violation during probe() */
 	drv->probe = probe;
 	retval = code = platform_driver_register(drv);
 
-	/* Fixup that section violation, being paranoid about code scanning
+	/*
+	 * Fixup that section violation, being paranoid about code scanning
 	 * the list of drivers in order to probe new devices.  Check to see
 	 * if the probe was successful, and make sure any forced probes of
 	 * new devices fail.
diff --git a/drivers/base/power/main.c b/drivers/base/power/main.c
index e0dc4071e08..8aa2443182d 100644
--- a/drivers/base/power/main.c
+++ b/drivers/base/power/main.c
@@ -511,6 +511,7 @@ static void dpm_complete(pm_message_t state)
 
 	INIT_LIST_HEAD(&list);
 	mutex_lock(&dpm_list_mtx);
+	transition_started = false;
 	while (!list_empty(&dpm_list)) {
 		struct device *dev = to_device(dpm_list.prev);
 
diff --git a/drivers/base/power/runtime.c b/drivers/base/power/runtime.c
index 38556f6cc22..846d89e3d12 100644
--- a/drivers/base/power/runtime.c
+++ b/drivers/base/power/runtime.c
@@ -51,8 +51,6 @@ static int __pm_runtime_idle(struct device *dev)
 {
 	int retval = 0;
 
-	dev_dbg(dev, "__pm_runtime_idle()!\n");
-
 	if (dev->power.runtime_error)
 		retval = -EINVAL;
 	else if (dev->power.idle_notification)
@@ -93,8 +91,6 @@ static int __pm_runtime_idle(struct device *dev)
 	wake_up_all(&dev->power.wait_queue);
 
  out:
-	dev_dbg(dev, "__pm_runtime_idle() returns %d!\n", retval);
-
 	return retval;
 }
 
@@ -332,11 +328,11 @@ int __pm_runtime_resume(struct device *dev, bool from_wq)
 		 * necessary.
 		 */
 		parent = dev->parent;
-		spin_unlock_irq(&dev->power.lock);
+		spin_unlock(&dev->power.lock);
 
 		pm_runtime_get_noresume(parent);
 
-		spin_lock_irq(&parent->power.lock);
+		spin_lock(&parent->power.lock);
 		/*
 		 * We can resume if the parent's run-time PM is disabled or it
 		 * is set to ignore children.
@@ -347,9 +343,9 @@ int __pm_runtime_resume(struct device *dev, bool from_wq)
 			if (parent->power.runtime_status != RPM_ACTIVE)
 				retval = -EBUSY;
 		}
-		spin_unlock_irq(&parent->power.lock);
+		spin_unlock(&parent->power.lock);
 
-		spin_lock_irq(&dev->power.lock);
+		spin_lock(&dev->power.lock);
 		if (retval)
 			goto out;
 		goto repeat;
@@ -781,7 +777,7 @@ int __pm_runtime_set_status(struct device *dev, unsigned int status)
 	}
 
 	if (parent) {
-		spin_lock_irq(&parent->power.lock);
+		spin_lock(&parent->power.lock);
 
 		/*
 		 * It is invalid to put an active child under a parent that is
@@ -797,7 +793,7 @@ int __pm_runtime_set_status(struct device *dev, unsigned int status)
 				atomic_inc(&parent->power.child_count);
 		}
 
-		spin_unlock_irq(&parent->power.lock);
+		spin_unlock(&parent->power.lock);
 
 		if (error)
 			goto out;