From fc14f2fef682df677d64a145256dbd263df2aa7b Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Sun, 25 Jul 2010 01:48:30 +0400
Subject: convert get_sb_single() users

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 arch/powerpc/platforms/cell/spufs/inode.c | 10 +++++-----
 arch/s390/hypfs/inode.c                   |  8 ++++----
 drivers/base/devtmpfs.c                   | 18 ++++++++---------
 drivers/infiniband/hw/ipath/ipath_fs.c    | 14 +++++++-------
 drivers/infiniband/hw/qib/qib_fs.c        | 14 +++++++-------
 drivers/isdn/capi/capifs.c                |  8 ++++----
 drivers/misc/ibmasm/ibmasmfs.c            |  9 ++++-----
 drivers/oprofile/oprofilefs.c             |  8 ++++----
 drivers/usb/core/inode.c                  |  8 ++++----
 drivers/usb/gadget/f_fs.c                 | 14 +++++++-------
 drivers/usb/gadget/inode.c                | 10 +++++-----
 drivers/xen/xenfs/super.c                 |  8 ++++----
 fs/binfmt_misc.c                          |  8 ++++----
 fs/configfs/mount.c                       |  8 ++++----
 fs/debugfs/inode.c                        |  8 ++++----
 fs/devpts/inode.c                         | 32 +++++++++++++++----------------
 fs/fuse/control.c                         | 10 ++++------
 fs/nfsd/nfsctl.c                          |  8 ++++----
 fs/openpromfs/inode.c                     |  8 ++++----
 fs/super.c                                | 25 ++++++++++++++++++------
 include/linux/fs.h                        |  3 +++
 net/sunrpc/rpc_pipe.c                     | 18 ++++++++---------
 security/inode.c                          |  8 ++++----
 security/selinux/selinuxfs.c              |  9 ++++-----
 security/smack/smackfs.c                  | 12 +++++-------
 25 files changed, 147 insertions(+), 139 deletions(-)

diff --git a/arch/powerpc/platforms/cell/spufs/inode.c b/arch/powerpc/platforms/cell/spufs/inode.c
index 5dec408..3532b92 100644
--- a/arch/powerpc/platforms/cell/spufs/inode.c
+++ b/arch/powerpc/platforms/cell/spufs/inode.c
@@ -798,17 +798,17 @@ spufs_fill_super(struct super_block *sb, void *data, int silent)
 	return spufs_create_root(sb, data);
 }
 
-static int
-spufs_get_sb(struct file_system_type *fstype, int flags,
-		const char *name, void *data, struct vfsmount *mnt)
+static struct dentry *
+spufs_mount(struct file_system_type *fstype, int flags,
+		const char *name, void *data)
 {
-	return get_sb_single(fstype, flags, data, spufs_fill_super, mnt);
+	return mount_single(fstype, flags, data, spufs_fill_super);
 }
 
 static struct file_system_type spufs_type = {
 	.owner = THIS_MODULE,
 	.name = "spufs",
-	.get_sb = spufs_get_sb,
+	.mount = spufs_mount,
 	.kill_sb = kill_litter_super,
 };
 
diff --git a/arch/s390/hypfs/inode.c b/arch/s390/hypfs/inode.c
index 74d9867..47cc446 100644
--- a/arch/s390/hypfs/inode.c
+++ b/arch/s390/hypfs/inode.c
@@ -316,10 +316,10 @@ static int hypfs_fill_super(struct super_block *sb, void *data, int silent)
 	return 0;
 }
 
-static int hypfs_get_super(struct file_system_type *fst, int flags,
-			const char *devname, void *data, struct vfsmount *mnt)
+static struct dentry *hypfs_mount(struct file_system_type *fst, int flags,
+			const char *devname, void *data)
 {
-	return get_sb_single(fst, flags, data, hypfs_fill_super, mnt);
+	return mount_single(fst, flags, data, hypfs_fill_super);
 }
 
 static void hypfs_kill_super(struct super_block *sb)
@@ -455,7 +455,7 @@ static const struct file_operations hypfs_file_ops = {
 static struct file_system_type hypfs_type = {
 	.owner		= THIS_MODULE,
 	.name		= "s390_hypfs",
-	.get_sb		= hypfs_get_super,
+	.mount		= hypfs_mount,
 	.kill_sb	= hypfs_kill_super
 };
 
diff --git a/drivers/base/devtmpfs.c b/drivers/base/devtmpfs.c
index af06001..82bbb59 100644
--- a/drivers/base/devtmpfs.c
+++ b/drivers/base/devtmpfs.c
@@ -29,33 +29,33 @@
 static struct vfsmount *dev_mnt;
 
 #if defined CONFIG_DEVTMPFS_MOUNT
-static int dev_mount = 1;
+static int mount_dev = 1;
 #else
-static int dev_mount;
+static int mount_dev;
 #endif
 
 static DEFINE_MUTEX(dirlock);
 
 static int __init mount_param(char *str)
 {
-	dev_mount = simple_strtoul(str, NULL, 0);
+	mount_dev = simple_strtoul(str, NULL, 0);
 	return 1;
 }
 __setup("devtmpfs.mount=", mount_param);
 
-static int dev_get_sb(struct file_system_type *fs_type, int flags,
-		      const char *dev_name, void *data, struct vfsmount *mnt)
+static struct dentry *dev_mount(struct file_system_type *fs_type, int flags,
+		      const char *dev_name, void *data)
 {
 #ifdef CONFIG_TMPFS
-	return get_sb_single(fs_type, flags, data, shmem_fill_super, mnt);
+	return mount_single(fs_type, flags, data, shmem_fill_super);
 #else
-	return get_sb_single(fs_type, flags, data, ramfs_fill_super, mnt);
+	return mount_single(fs_type, flags, data, ramfs_fill_super);
 #endif
 }
 
 static struct file_system_type dev_fs_type = {
 	.name = "devtmpfs",
-	.get_sb = dev_get_sb,
+	.mount = dev_mount,
 	.kill_sb = kill_litter_super,
 };
 
@@ -351,7 +351,7 @@ int devtmpfs_mount(const char *mntdir)
 {
 	int err;
 
-	if (!dev_mount)
+	if (!mount_dev)
 		return 0;
 
 	if (!dev_mnt)
diff --git a/drivers/infiniband/hw/ipath/ipath_fs.c b/drivers/infiniband/hw/ipath/ipath_fs.c
index 12d5bf7..8c8afc7 100644
--- a/drivers/infiniband/hw/ipath/ipath_fs.c
+++ b/drivers/infiniband/hw/ipath/ipath_fs.c
@@ -362,13 +362,13 @@ bail:
 	return ret;
 }
 
-static int ipathfs_get_sb(struct file_system_type *fs_type, int flags,
-			const char *dev_name, void *data, struct vfsmount *mnt)
+static struct dentry *ipathfs_mount(struct file_system_type *fs_type,
+			int flags, const char *dev_name, void *data)
 {
-	int ret = get_sb_single(fs_type, flags, data,
-				    ipathfs_fill_super, mnt);
-	if (ret >= 0)
-		ipath_super = mnt->mnt_sb;
+	struct dentry *ret;
+	ret = mount_single(fs_type, flags, data, ipathfs_fill_super);
+	if (!IS_ERR(ret))
+		ipath_super = ret->d_sb;
 	return ret;
 }
 
@@ -411,7 +411,7 @@ bail:
 static struct file_system_type ipathfs_fs_type = {
 	.owner =	THIS_MODULE,
 	.name =		"ipathfs",
-	.get_sb =	ipathfs_get_sb,
+	.mount =	ipathfs_mount,
 	.kill_sb =	ipathfs_kill_super,
 };
 
diff --git a/drivers/infiniband/hw/qib/qib_fs.c b/drivers/infiniband/hw/qib/qib_fs.c
index 7e433d7..f99bddc 100644
--- a/drivers/infiniband/hw/qib/qib_fs.c
+++ b/drivers/infiniband/hw/qib/qib_fs.c
@@ -555,13 +555,13 @@ bail:
 	return ret;
 }
 
-static int qibfs_get_sb(struct file_system_type *fs_type, int flags,
-			const char *dev_name, void *data, struct vfsmount *mnt)
+static struct dentry *qibfs_mount(struct file_system_type *fs_type, int flags,
+			const char *dev_name, void *data)
 {
-	int ret = get_sb_single(fs_type, flags, data,
-				qibfs_fill_super, mnt);
-	if (ret >= 0)
-		qib_super = mnt->mnt_sb;
+	struct dentry *ret;
+	ret = mount_single(fs_type, flags, data, qibfs_fill_super);
+	if (!IS_ERR(ret))
+		qib_super = ret->d_sb;
 	return ret;
 }
 
@@ -603,7 +603,7 @@ int qibfs_remove(struct qib_devdata *dd)
 static struct file_system_type qibfs_fs_type = {
 	.owner =        THIS_MODULE,
 	.name =         "ipathfs",
-	.get_sb =       qibfs_get_sb,
+	.mount =        qibfs_mount,
 	.kill_sb =      qibfs_kill_super,
 };
 
diff --git a/drivers/isdn/capi/capifs.c b/drivers/isdn/capi/capifs.c
index 2b83850..b4faed7 100644
--- a/drivers/isdn/capi/capifs.c
+++ b/drivers/isdn/capi/capifs.c
@@ -125,16 +125,16 @@ fail:
 	return -ENOMEM;
 }
 
-static int capifs_get_sb(struct file_system_type *fs_type,
-	int flags, const char *dev_name, void *data, struct vfsmount *mnt)
+static struct dentry *capifs_mount(struct file_system_type *fs_type,
+	int flags, const char *dev_name, void *data)
 {
-	return get_sb_single(fs_type, flags, data, capifs_fill_super, mnt);
+	return mount_single(fs_type, flags, data, capifs_fill_super);
 }
 
 static struct file_system_type capifs_fs_type = {
 	.owner		= THIS_MODULE,
 	.name		= "capifs",
-	.get_sb		= capifs_get_sb,
+	.mount		= capifs_mount,
 	.kill_sb	= kill_anon_super,
 };
 
diff --git a/drivers/misc/ibmasm/ibmasmfs.c b/drivers/misc/ibmasm/ibmasmfs.c
index 0a53500..d2d5d23 100644
--- a/drivers/misc/ibmasm/ibmasmfs.c
+++ b/drivers/misc/ibmasm/ibmasmfs.c
@@ -91,11 +91,10 @@ static void ibmasmfs_create_files (struct super_block *sb, struct dentry *root);
 static int ibmasmfs_fill_super (struct super_block *sb, void *data, int silent);
 
 
-static int ibmasmfs_get_super(struct file_system_type *fst,
-			int flags, const char *name, void *data,
-			struct vfsmount *mnt)
+static struct dentry *ibmasmfs_mount(struct file_system_type *fst,
+			int flags, const char *name, void *data)
 {
-	return get_sb_single(fst, flags, data, ibmasmfs_fill_super, mnt);
+	return mount_single(fst, flags, data, ibmasmfs_fill_super);
 }
 
 static const struct super_operations ibmasmfs_s_ops = {
@@ -108,7 +107,7 @@ static const struct file_operations *ibmasmfs_dir_ops = &simple_dir_operations;
 static struct file_system_type ibmasmfs_type = {
 	.owner          = THIS_MODULE,
 	.name           = "ibmasmfs",
-	.get_sb         = ibmasmfs_get_super,
+	.mount          = ibmasmfs_mount,
 	.kill_sb        = kill_litter_super,
 };
 
diff --git a/drivers/oprofile/oprofilefs.c b/drivers/oprofile/oprofilefs.c
index 449de59..e9ff6f7 100644
--- a/drivers/oprofile/oprofilefs.c
+++ b/drivers/oprofile/oprofilefs.c
@@ -259,17 +259,17 @@ static int oprofilefs_fill_super(struct super_block *sb, void *data, int silent)
 }
 
 
-static int oprofilefs_get_sb(struct file_system_type *fs_type,
-	int flags, const char *dev_name, void *data, struct vfsmount *mnt)
+static struct dentry *oprofilefs_mount(struct file_system_type *fs_type,
+	int flags, const char *dev_name, void *data)
 {
-	return get_sb_single(fs_type, flags, data, oprofilefs_fill_super, mnt);
+	return mount_single(fs_type, flags, data, oprofilefs_fill_super);
 }
 
 
 static struct file_system_type oprofilefs_type = {
 	.owner		= THIS_MODULE,
 	.name		= "oprofilefs",
-	.get_sb		= oprofilefs_get_sb,
+	.mount		= oprofilefs_mount,
 	.kill_sb	= kill_litter_super,
 };
 
diff --git a/drivers/usb/core/inode.c b/drivers/usb/core/inode.c
index e2f63c0..9819a4c 100644
--- a/drivers/usb/core/inode.c
+++ b/drivers/usb/core/inode.c
@@ -574,16 +574,16 @@ static void fs_remove_file (struct dentry *dentry)
 
 /* --------------------------------------------------------------------- */
 
-static int usb_get_sb(struct file_system_type *fs_type,
-	int flags, const char *dev_name, void *data, struct vfsmount *mnt)
+static struct dentry *usb_mount(struct file_system_type *fs_type,
+	int flags, const char *dev_name, void *data)
 {
-	return get_sb_single(fs_type, flags, data, usbfs_fill_super, mnt);
+	return mount_single(fs_type, flags, data, usbfs_fill_super);
 }
 
 static struct file_system_type usb_fs_type = {
 	.owner =	THIS_MODULE,
 	.name =		"usbfs",
-	.get_sb =	usb_get_sb,
+	.mount =	usb_mount,
 	.kill_sb =	kill_litter_super,
 };
 
diff --git a/drivers/usb/gadget/f_fs.c b/drivers/usb/gadget/f_fs.c
index f276e95..4a830df 100644
--- a/drivers/usb/gadget/f_fs.c
+++ b/drivers/usb/gadget/f_fs.c
@@ -1176,9 +1176,9 @@ invalid:
 
 /* "mount -t functionfs dev_name /dev/function" ends up here */
 
-static int
-ffs_fs_get_sb(struct file_system_type *t, int flags,
-	      const char *dev_name, void *opts, struct vfsmount *mnt)
+static struct dentry *
+ffs_fs_mount(struct file_system_type *t, int flags,
+	      const char *dev_name, void *opts)
 {
 	struct ffs_sb_fill_data data = {
 		.perms = {
@@ -1194,14 +1194,14 @@ ffs_fs_get_sb(struct file_system_type *t, int flags,
 
 	ret = functionfs_check_dev_callback(dev_name);
 	if (unlikely(ret < 0))
-		return ret;
+		return ERR_PTR(ret);
 
 	ret = ffs_fs_parse_opts(&data, opts);
 	if (unlikely(ret < 0))
-		return ret;
+		return ERR_PTR(ret);
 
 	data.dev_name = dev_name;
-	return get_sb_single(t, flags, &data, ffs_sb_fill, mnt);
+	return mount_single(t, flags, &data, ffs_sb_fill);
 }
 
 static void
@@ -1220,7 +1220,7 @@ ffs_fs_kill_sb(struct super_block *sb)
 static struct file_system_type ffs_fs_type = {
 	.owner		= THIS_MODULE,
 	.name		= "functionfs",
-	.get_sb		= ffs_fs_get_sb,
+	.mount		= ffs_fs_mount,
 	.kill_sb	= ffs_fs_kill_sb,
 };
 
diff --git a/drivers/usb/gadget/inode.c b/drivers/usb/gadget/inode.c
index ba145e7..3ed73f4 100644
--- a/drivers/usb/gadget/inode.c
+++ b/drivers/usb/gadget/inode.c
@@ -2097,11 +2097,11 @@ enomem0:
 }
 
 /* "mount -t gadgetfs path /dev/gadget" ends up here */
-static int
-gadgetfs_get_sb (struct file_system_type *t, int flags,
-		const char *path, void *opts, struct vfsmount *mnt)
+static struct dentry *
+gadgetfs_mount (struct file_system_type *t, int flags,
+		const char *path, void *opts)
 {
-	return get_sb_single (t, flags, opts, gadgetfs_fill_super, mnt);
+	return mount_single (t, flags, opts, gadgetfs_fill_super);
 }
 
 static void
@@ -2119,7 +2119,7 @@ gadgetfs_kill_sb (struct super_block *sb)
 static struct file_system_type gadgetfs_type = {
 	.owner		= THIS_MODULE,
 	.name		= shortname,
-	.get_sb		= gadgetfs_get_sb,
+	.mount		= gadgetfs_mount,
 	.kill_sb	= gadgetfs_kill_sb,
 };
 
diff --git a/drivers/xen/xenfs/super.c b/drivers/xen/xenfs/super.c
index d6662b7..f6339d1 100644
--- a/drivers/xen/xenfs/super.c
+++ b/drivers/xen/xenfs/super.c
@@ -121,17 +121,17 @@ static int xenfs_fill_super(struct super_block *sb, void *data, int silent)
 	return rc;
 }
 
-static int xenfs_get_sb(struct file_system_type *fs_type,
+static int xenfs_mount(struct file_system_type *fs_type,
 			int flags, const char *dev_name,
-			void *data, struct vfsmount *mnt)
+			void *data)
 {
-	return get_sb_single(fs_type, flags, data, xenfs_fill_super, mnt);
+	return mount_single(fs_type, flags, data, xenfs_fill_super);
 }
 
 static struct file_system_type xenfs_type = {
 	.owner =	THIS_MODULE,
 	.name =		"xenfs",
-	.get_sb =	xenfs_get_sb,
+	.mount =	xenfs_mount,
 	.kill_sb =	kill_litter_super,
 };
 
diff --git a/fs/binfmt_misc.c b/fs/binfmt_misc.c
index 29990f0..1befe2e 100644
--- a/fs/binfmt_misc.c
+++ b/fs/binfmt_misc.c
@@ -706,10 +706,10 @@ static int bm_fill_super(struct super_block * sb, void * data, int silent)
 	return err;
 }
 
-static int bm_get_sb(struct file_system_type *fs_type,
-	int flags, const char *dev_name, void *data, struct vfsmount *mnt)
+static struct dentry *bm_mount(struct file_system_type *fs_type,
+	int flags, const char *dev_name, void *data)
 {
-	return get_sb_single(fs_type, flags, data, bm_fill_super, mnt);
+	return mount_single(fs_type, flags, data, bm_fill_super);
 }
 
 static struct linux_binfmt misc_format = {
@@ -720,7 +720,7 @@ static struct linux_binfmt misc_format = {
 static struct file_system_type bm_fs_type = {
 	.owner		= THIS_MODULE,
 	.name		= "binfmt_misc",
-	.get_sb		= bm_get_sb,
+	.mount		= bm_mount,
 	.kill_sb	= kill_litter_super,
 };
 
diff --git a/fs/configfs/mount.c b/fs/configfs/mount.c
index 8c8d642..7d3607f 100644
--- a/fs/configfs/mount.c
+++ b/fs/configfs/mount.c
@@ -104,16 +104,16 @@ static int configfs_fill_super(struct super_block *sb, void *data, int silent)
 	return 0;
 }
 
-static int configfs_get_sb(struct file_system_type *fs_type,
-	int flags, const char *dev_name, void *data, struct vfsmount *mnt)
+static struct dentry *configfs_do_mount(struct file_system_type *fs_type,
+	int flags, const char *dev_name, void *data)
 {
-	return get_sb_single(fs_type, flags, data, configfs_fill_super, mnt);
+	return mount_single(fs_type, flags, data, configfs_fill_super);
 }
 
 static struct file_system_type configfs_fs_type = {
 	.owner		= THIS_MODULE,
 	.name		= "configfs",
-	.get_sb		= configfs_get_sb,
+	.mount		= configfs_do_mount,
 	.kill_sb	= kill_litter_super,
 };
 
diff --git a/fs/debugfs/inode.c b/fs/debugfs/inode.c
index a4ed838..37a8ca7 100644
--- a/fs/debugfs/inode.c
+++ b/fs/debugfs/inode.c
@@ -135,17 +135,17 @@ static int debug_fill_super(struct super_block *sb, void *data, int silent)
 	return simple_fill_super(sb, DEBUGFS_MAGIC, debug_files);
 }
 
-static int debug_get_sb(struct file_system_type *fs_type,
+static struct dentry *debug_mount(struct file_system_type *fs_type,
 			int flags, const char *dev_name,
-			void *data, struct vfsmount *mnt)
+			void *data)
 {
-	return get_sb_single(fs_type, flags, data, debug_fill_super, mnt);
+	return mount_single(fs_type, flags, data, debug_fill_super);
 }
 
 static struct file_system_type debug_fs_type = {
 	.owner =	THIS_MODULE,
 	.name =		"debugfs",
-	.get_sb =	debug_get_sb,
+	.mount =	debug_mount,
 	.kill_sb =	kill_litter_super,
 };
 
diff --git a/fs/devpts/inode.c b/fs/devpts/inode.c
index 8b3ffd5..1bb547c 100644
--- a/fs/devpts/inode.c
+++ b/fs/devpts/inode.c
@@ -331,7 +331,7 @@ static int compare_init_pts_sb(struct super_block *s, void *p)
 }
 
 /*
- * devpts_get_sb()
+ * devpts_mount()
  *
  *     If the '-o newinstance' mount option was specified, mount a new
  *     (private) instance of devpts.  PTYs created in this instance are
@@ -345,20 +345,20 @@ static int compare_init_pts_sb(struct super_block *s, void *p)
  *     semantics in devpts while preserving backward compatibility of the
  *     current 'single-namespace' semantics. i.e all mounts of devpts
  *     without the 'newinstance' mount option should bind to the initial
- *     kernel mount, like get_sb_single().
+ *     kernel mount, like mount_single().
  *
  *     Mounts with 'newinstance' option create a new, private namespace.
  *
  *     NOTE:
  *
- *     For single-mount semantics, devpts cannot use get_sb_single(),
- *     because get_sb_single()/sget() find and use the super-block from
+ *     For single-mount semantics, devpts cannot use mount_single(),
+ *     because mount_single()/sget() find and use the super-block from
  *     the most recent mount of devpts. But that recent mount may be a
- *     'newinstance' mount and get_sb_single() would pick the newinstance
+ *     'newinstance' mount and mount_single() would pick the newinstance
  *     super-block instead of the initial super-block.
  */
-static int devpts_get_sb(struct file_system_type *fs_type,
-	int flags, const char *dev_name, void *data, struct vfsmount *mnt)
+static struct dentry *devpts_mount(struct file_system_type *fs_type,
+	int flags, const char *dev_name, void *data)
 {
 	int error;
 	struct pts_mount_opts opts;
@@ -366,7 +366,7 @@ static int devpts_get_sb(struct file_system_type *fs_type,
 
 	error = parse_mount_options(data, PARSE_MOUNT, &opts);
 	if (error)
-		return error;
+		return ERR_PTR(error);
 
 	if (opts.newinstance)
 		s = sget(fs_type, NULL, set_anon_super, NULL);
@@ -374,7 +374,7 @@ static int devpts_get_sb(struct file_system_type *fs_type,
 		s = sget(fs_type, compare_init_pts_sb, set_anon_super, NULL);
 
 	if (IS_ERR(s))
-		return PTR_ERR(s);
+		return ERR_CAST(s);
 
 	if (!s->s_root) {
 		s->s_flags = flags;
@@ -390,13 +390,11 @@ static int devpts_get_sb(struct file_system_type *fs_type,
 	if (error)
 		goto out_undo_sget;
 
-	simple_set_mnt(mnt, s);
-
-	return 0;
+	return dget(s->s_root);
 
 out_undo_sget:
 	deactivate_locked_super(s);
-	return error;
+	return ERR_PTR(error);
 }
 
 #else
@@ -404,10 +402,10 @@ out_undo_sget:
  * This supports only the legacy single-instance semantics (no
  * multiple-instance semantics)
  */
-static int devpts_get_sb(struct file_system_type *fs_type, int flags,
-		const char *dev_name, void *data, struct vfsmount *mnt)
+static struct dentry *devpts_mount(struct file_system_type *fs_type, int flags,
+		const char *dev_name, void *data)
 {
-	return get_sb_single(fs_type, flags, data, devpts_fill_super, mnt);
+	return mount_single(fs_type, flags, data, devpts_fill_super);
 }
 #endif
 
@@ -421,7 +419,7 @@ static void devpts_kill_sb(struct super_block *sb)
 
 static struct file_system_type devpts_fs_type = {
 	.name		= "devpts",
-	.get_sb		= devpts_get_sb,
+	.mount		= devpts_mount,
 	.kill_sb	= devpts_kill_sb,
 };
 
diff --git a/fs/fuse/control.c b/fs/fuse/control.c
index 4eba076..85542a7 100644
--- a/fs/fuse/control.c
+++ b/fs/fuse/control.c
@@ -322,12 +322,10 @@ static int fuse_ctl_fill_super(struct super_block *sb, void *data, int silent)
 	return 0;
 }
 
-static int fuse_ctl_get_sb(struct file_system_type *fs_type, int flags,
-			const char *dev_name, void *raw_data,
-			struct vfsmount *mnt)
+static struct dentry *fuse_ctl_mount(struct file_system_type *fs_type,
+			int flags, const char *dev_name, void *raw_data)
 {
-	return get_sb_single(fs_type, flags, raw_data,
-				fuse_ctl_fill_super, mnt);
+	return mount_single(fs_type, flags, raw_data, fuse_ctl_fill_super);
 }
 
 static void fuse_ctl_kill_sb(struct super_block *sb)
@@ -346,7 +344,7 @@ static void fuse_ctl_kill_sb(struct super_block *sb)
 static struct file_system_type fuse_ctl_fs_type = {
 	.owner		= THIS_MODULE,
 	.name		= "fusectl",
-	.get_sb		= fuse_ctl_get_sb,
+	.mount		= fuse_ctl_mount,
 	.kill_sb	= fuse_ctl_kill_sb,
 };
 
diff --git a/fs/nfsd/nfsctl.c b/fs/nfsd/nfsctl.c
index d6dc3f6..4514ebb 100644
--- a/fs/nfsd/nfsctl.c
+++ b/fs/nfsd/nfsctl.c
@@ -1405,16 +1405,16 @@ static int nfsd_fill_super(struct super_block * sb, void * data, int silent)
 	return simple_fill_super(sb, 0x6e667364, nfsd_files);
 }
 
-static int nfsd_get_sb(struct file_system_type *fs_type,
-	int flags, const char *dev_name, void *data, struct vfsmount *mnt)
+static struct dentry *nfsd_mount(struct file_system_type *fs_type,
+	int flags, const char *dev_name, void *data)
 {
-	return get_sb_single(fs_type, flags, data, nfsd_fill_super, mnt);
+	return mount_single(fs_type, flags, data, nfsd_fill_super);
 }
 
 static struct file_system_type nfsd_fs_type = {
 	.owner		= THIS_MODULE,
 	.name		= "nfsd",
-	.get_sb		= nfsd_get_sb,
+	.mount		= nfsd_mount,
 	.kill_sb	= kill_litter_super,
 };
 
diff --git a/fs/openpromfs/inode.c b/fs/openpromfs/inode.c
index ffcd04f..ddb1f41 100644
--- a/fs/openpromfs/inode.c
+++ b/fs/openpromfs/inode.c
@@ -415,16 +415,16 @@ out_no_root:
 	return ret;
 }
 
-static int openprom_get_sb(struct file_system_type *fs_type,
-	int flags, const char *dev_name, void *data, struct vfsmount *mnt)
+static struct dentry *openprom_mount(struct file_system_type *fs_type,
+	int flags, const char *dev_name, void *data)
 {
-	return get_sb_single(fs_type, flags, data, openprom_fill_super, mnt);
+	return mount_single(fs_type, flags, data, openprom_fill_super)
 }
 
 static struct file_system_type openprom_fs_type = {
 	.owner		= THIS_MODULE,
 	.name		= "openpromfs",
-	.get_sb		= openprom_get_sb,
+	.mount		= openprom_mount,
 	.kill_sb	= kill_anon_super,
 };
 
diff --git a/fs/super.c b/fs/super.c
index 40989e9..6f021a1 100644
--- a/fs/super.c
+++ b/fs/super.c
@@ -900,29 +900,42 @@ static int compare_single(struct super_block *s, void *p)
 	return 1;
 }
 
-int get_sb_single(struct file_system_type *fs_type,
+struct dentry *mount_single(struct file_system_type *fs_type,
 	int flags, void *data,
-	int (*fill_super)(struct super_block *, void *, int),
-	struct vfsmount *mnt)
+	int (*fill_super)(struct super_block *, void *, int))
 {
 	struct super_block *s;
 	int error;
 
 	s = sget(fs_type, compare_single, set_anon_super, NULL);
 	if (IS_ERR(s))
-		return PTR_ERR(s);
+		return ERR_CAST(s);
 	if (!s->s_root) {
 		s->s_flags = flags;
 		error = fill_super(s, data, flags & MS_SILENT ? 1 : 0);
 		if (error) {
 			deactivate_locked_super(s);
-			return error;
+			return ERR_PTR(error);
 		}
 		s->s_flags |= MS_ACTIVE;
 	} else {
 		do_remount_sb(s, flags, data, 0);
 	}
-	simple_set_mnt(mnt, s);
+	return dget(s->s_root);
+}
+EXPORT_SYMBOL(mount_single);
+
+int get_sb_single(struct file_system_type *fs_type,
+	int flags, void *data,
+	int (*fill_super)(struct super_block *, void *, int),
+	struct vfsmount *mnt)
+{
+	struct dentry *root;
+	root = mount_single(fs_type, flags, data, fill_super);
+	if (IS_ERR(root))
+		return PTR_ERR(root);
+	mnt->mnt_root = root;
+	mnt->mnt_sb = root->d_sb;
 	return 0;
 }
 
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 2fab5a2..0aa2f12 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -1799,6 +1799,9 @@ extern int get_sb_bdev(struct file_system_type *fs_type,
 	int flags, const char *dev_name, void *data,
 	int (*fill_super)(struct super_block *, void *, int),
 	struct vfsmount *mnt);
+extern struct dentry *mount_single(struct file_system_type *fs_type,
+	int flags, void *data,
+	int (*fill_super)(struct super_block *, void *, int));
 extern int get_sb_single(struct file_system_type *fs_type,
 	int flags, void *data,
 	int (*fill_super)(struct super_block *, void *, int),
diff --git a/net/sunrpc/rpc_pipe.c b/net/sunrpc/rpc_pipe.c
index 7df92d2..10a17a3 100644
--- a/net/sunrpc/rpc_pipe.c
+++ b/net/sunrpc/rpc_pipe.c
@@ -28,7 +28,7 @@
 #include <linux/sunrpc/rpc_pipe_fs.h>
 #include <linux/sunrpc/cache.h>
 
-static struct vfsmount *rpc_mount __read_mostly;
+static struct vfsmount *rpc_mnt __read_mostly;
 static int rpc_mount_count;
 
 static struct file_system_type rpc_pipe_fs_type;
@@ -417,16 +417,16 @@ struct vfsmount *rpc_get_mount(void)
 {
 	int err;
 
-	err = simple_pin_fs(&rpc_pipe_fs_type, &rpc_mount, &rpc_mount_count);
+	err = simple_pin_fs(&rpc_pipe_fs_type, &rpc_mnt, &rpc_mount_count);
 	if (err != 0)
 		return ERR_PTR(err);
-	return rpc_mount;
+	return rpc_mnt;
 }
 EXPORT_SYMBOL_GPL(rpc_get_mount);
 
 void rpc_put_mount(void)
 {
-	simple_release_fs(&rpc_mount, &rpc_mount_count);
+	simple_release_fs(&rpc_mnt, &rpc_mount_count);
 }
 EXPORT_SYMBOL_GPL(rpc_put_mount);
 
@@ -1018,17 +1018,17 @@ rpc_fill_super(struct super_block *sb, void *data, int silent)
 	return 0;
 }
 
-static int
-rpc_get_sb(struct file_system_type *fs_type,
-		int flags, const char *dev_name, void *data, struct vfsmount *mnt)
+static struct dentry *
+rpc_mount(struct file_system_type *fs_type,
+		int flags, const char *dev_name, void *data)
 {
-	return get_sb_single(fs_type, flags, data, rpc_fill_super, mnt);
+	return mount_single(fs_type, flags, data, rpc_fill_super);
 }
 
 static struct file_system_type rpc_pipe_fs_type = {
 	.owner		= THIS_MODULE,
 	.name		= "rpc_pipefs",
-	.get_sb		= rpc_get_sb,
+	.mount		= rpc_mount,
 	.kill_sb	= kill_litter_super,
 };
 
diff --git a/security/inode.c b/security/inode.c
index cb8f47c..c4df2fb 100644
--- a/security/inode.c
+++ b/security/inode.c
@@ -131,17 +131,17 @@ static int fill_super(struct super_block *sb, void *data, int silent)
 	return simple_fill_super(sb, SECURITYFS_MAGIC, files);
 }
 
-static int get_sb(struct file_system_type *fs_type,
+static struct dentry *get_sb(struct file_system_type *fs_type,
 		  int flags, const char *dev_name,
-		  void *data, struct vfsmount *mnt)
+		  void *data)
 {
-	return get_sb_single(fs_type, flags, data, fill_super, mnt);
+	return mount_single(fs_type, flags, data, fill_super);
 }
 
 static struct file_system_type fs_type = {
 	.owner =	THIS_MODULE,
 	.name =		"securityfs",
-	.get_sb =	get_sb,
+	.mount =	get_sb,
 	.kill_sb =	kill_litter_super,
 };
 
diff --git a/security/selinux/selinuxfs.c b/security/selinux/selinuxfs.c
index 55a755c..073fd5b 100644
--- a/security/selinux/selinuxfs.c
+++ b/security/selinux/selinuxfs.c
@@ -1909,16 +1909,15 @@ err:
 	goto out;
 }
 
-static int sel_get_sb(struct file_system_type *fs_type,
-		      int flags, const char *dev_name, void *data,
-		      struct vfsmount *mnt)
+static struct dentry *sel_mount(struct file_system_type *fs_type,
+		      int flags, const char *dev_name, void *data)
 {
-	return get_sb_single(fs_type, flags, data, sel_fill_super, mnt);
+	return mount_single(fs_type, flags, data, sel_fill_super);
 }
 
 static struct file_system_type sel_fs_type = {
 	.name		= "selinuxfs",
-	.get_sb		= sel_get_sb,
+	.mount		= sel_mount,
 	.kill_sb	= kill_litter_super,
 };
 
diff --git a/security/smack/smackfs.c b/security/smack/smackfs.c
index 7512502..dc1fd62 100644
--- a/security/smack/smackfs.c
+++ b/security/smack/smackfs.c
@@ -1310,27 +1310,25 @@ static int smk_fill_super(struct super_block *sb, void *data, int silent)
 }
 
 /**
- * smk_get_sb - get the smackfs superblock
+ * smk_mount - get the smackfs superblock
  * @fs_type: passed along without comment
  * @flags: passed along without comment
  * @dev_name: passed along without comment
  * @data: passed along without comment
- * @mnt: passed along without comment
  *
  * Just passes everything along.
  *
  * Returns what the lower level code does.
  */
-static int smk_get_sb(struct file_system_type *fs_type,
-		      int flags, const char *dev_name, void *data,
-		      struct vfsmount *mnt)
+static struct dentry *smk_mount(struct file_system_type *fs_type,
+		      int flags, const char *dev_name, void *data)
 {
-	return get_sb_single(fs_type, flags, data, smk_fill_super, mnt);
+	return mount_single(fs_type, flags, data, smk_fill_super);
 }
 
 static struct file_system_type smk_fs_type = {
 	.name		= "smackfs",
-	.get_sb		= smk_get_sb,
+	.mount		= smk_mount,
 	.kill_sb	= kill_litter_super,
 };
 
-- 
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