Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6: (22 commits)
  Fix the race between capifs remount and node creation
  Fix races around the access to ->s_options
  switch ufs directories to ufs_sync_file()
  Switch open_exec() and sys_uselib() to do_open_filp()
  Make open_exec() and sys_uselib() use may_open(), instead of duplicating its parts
  Reduce path_lookup() abuses
  Make checkpatch.pl shut up on fs/inode.c
  NULL noise in fs/super.c:kill_bdev_super()
  romfs: cleanup romfs_fs.h
  ROMFS: romfs_dev_read() error ignored
  fs: dcache fix LRU ordering
  ocfs2: Use nd_set_link().
  Fix deadlock in ipathfs ->get_sb()
  Fix a leak in failure exit in 9p ->get_sb()
  Convert obvious places to deactivate_locked_super()
  New helper: deactivate_locked_super()
  reiserfs: remove privroot hiding in lookup
  reiserfs: dont associate security.* with xattr files
  reiserfs: fixup xattr_root caching
  Always lookup priv_root on reiserfs mount and keep it
  ...

4 files changed, 20 insertions, 16 deletions

diff --git a/drivers/infiniband/hw/ipath/ipath_fs.c b/drivers/infiniband/hw/ipath/ipath_fs.c
index 8dc2bb7..b368406 100644
--- a/drivers/infiniband/hw/ipath/ipath_fs.c
+++ b/drivers/infiniband/hw/ipath/ipath_fs.c
@@ -347,7 +347,7 @@ static int ipathfs_fill_super(struct super_block *sb, void *data,
 		spin_unlock_irqrestore(&ipath_devs_lock, flags);
 		ret = create_device_files(sb, dd);
 		if (ret) {
-			deactivate_super(sb);
+			deactivate_locked_super(sb);
 			goto bail;
 		}
 		spin_lock_irqsave(&ipath_devs_lock, flags);
diff --git a/drivers/isdn/capi/capifs.c b/drivers/isdn/capi/capifs.c
index b129409..bff72d8 100644
--- a/drivers/isdn/capi/capifs.c
+++ b/drivers/isdn/capi/capifs.c
@@ -75,15 +75,17 @@ static int capifs_remount(struct super_block *s, int *flags, char *data)
 		}
 	}
 
-	kfree(s->s_options);
-	s->s_options = new_opt;
+	mutex_lock(&s->s_root->d_inode->i_mutex);
 
+	replace_mount_options(s, new_opt);
 	config.setuid  = setuid;
 	config.setgid  = setgid;
 	config.uid     = uid;
 	config.gid     = gid;
 	config.mode    = mode;
 
+	mutex_unlock(&s->s_root->d_inode->i_mutex);
+
 	return 0;
 }
 
@@ -154,13 +156,16 @@ void capifs_new_ncci(unsigned int number, dev_t device)
 	if (!inode)
 		return;
 	inode->i_ino = number+2;
+
+	dentry = get_node(number);
+
+	/* config contents is protected by root's i_mutex */
 	inode->i_uid = config.setuid ? config.uid : current_fsuid();
 	inode->i_gid = config.setgid ? config.gid : current_fsgid();
 	inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME;
 	init_special_inode(inode, S_IFCHR|config.mode, device);
 	//inode->i_op = &capifs_file_inode_operations;
 
-	dentry = get_node(number);
 	if (!IS_ERR(dentry) && !dentry->d_inode)
 		d_instantiate(dentry, inode);
 	mutex_unlock(&capifs_root->d_inode->i_mutex);
diff --git a/drivers/mtd/mtdsuper.c b/drivers/mtd/mtdsuper.c
index 92285d0..af8b42e 100644
--- a/drivers/mtd/mtdsuper.c
+++ b/drivers/mtd/mtdsuper.c
@@ -74,8 +74,7 @@ static int get_sb_mtd_aux(struct file_system_type *fs_type, int flags,
 
 	ret = fill_super(sb, data, flags & MS_SILENT ? 1 : 0);
 	if (ret < 0) {
-		up_write(&sb->s_umount);
-		deactivate_super(sb);
+		deactivate_locked_super(sb);
 		return ret;
 	}
 
diff --git a/drivers/scsi/osd/osd_uld.c b/drivers/scsi/osd/osd_uld.c
index f644c95..22b59e1 100644
--- a/drivers/scsi/osd/osd_uld.c
+++ b/drivers/scsi/osd/osd_uld.c
@@ -173,26 +173,26 @@ static const struct file_operations osd_fops = {
 	.unlocked_ioctl = osd_uld_ioctl,
 };
 
-struct osd_dev *osduld_path_lookup(const char *path)
+struct osd_dev *osduld_path_lookup(const char *name)
 {
-	struct nameidata nd;
+	struct path path;
 	struct inode *inode;
 	struct cdev *cdev;
 	struct osd_uld_device *uninitialized_var(oud);
 	int error;
 
-	if (!path || !*path) {
+	if (!name || !*name) {
 		OSD_ERR("Mount with !path || !*path\n");
 		return ERR_PTR(-EINVAL);
 	}
 
-	error = path_lookup(path, LOOKUP_FOLLOW, &nd);
+	error = kern_path(name, LOOKUP_FOLLOW, &path);
 	if (error) {
-		OSD_ERR("path_lookup of %s faild=>%d\n", path, error);
+		OSD_ERR("path_lookup of %s failed=>%d\n", name, error);
 		return ERR_PTR(error);
 	}
 
-	inode = nd.path.dentry->d_inode;
+	inode = path.dentry->d_inode;
 	error = -EINVAL; /* Not the right device e.g osd_uld_device */
 	if (!S_ISCHR(inode->i_mode)) {
 		OSD_DEBUG("!S_ISCHR()\n");
@@ -202,15 +202,15 @@ struct osd_dev *osduld_path_lookup(const char *path)
 	cdev = inode->i_cdev;
 	if (!cdev) {
 		OSD_ERR("Before mounting an OSD Based filesystem\n");
-		OSD_ERR("  user-mode must open+close the %s device\n", path);
-		OSD_ERR("  Example: bash: echo < %s\n", path);
+		OSD_ERR("  user-mode must open+close the %s device\n", name);
+		OSD_ERR("  Example: bash: echo < %s\n", name);
 		goto out;
 	}
 
 	/* The Magic wand. Is it our char-dev */
 	/* TODO: Support sg devices */
 	if (cdev->owner != THIS_MODULE) {
-		OSD_ERR("Error mounting %s - is not an OSD device\n", path);
+		OSD_ERR("Error mounting %s - is not an OSD device\n", name);
 		goto out;
 	}
 
@@ -220,7 +220,7 @@ struct osd_dev *osduld_path_lookup(const char *path)
 	error = 0;
 
 out:
-	path_put(&nd.path);
+	path_put(&path);
 	return error ? ERR_PTR(error) : &oud->od;
 }
 EXPORT_SYMBOL(osduld_path_lookup);