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: (29 commits)
  braino in internal.h
  convert simple cases of nfs-related ->get_sb() to ->mount()
  convert btrfs
  convert ceph
  convert gfs2
  convert afs
  convert ecryptfs
  convert sysfs
  convert cgroup and cpuset
  switch get_sb_ns() users
  switch procfs to ->mount()
  setting ->proc_mnt doesn't belong in proc_get_sb()
  convert cifs
  convert nilfs
  switch logfs to ->mount()
  logfs: fix a leak in get_sb
  logfs get_sb, part 3
  logfs get_sb, part 2
  logfs get_sb massage, part 1
  convert v9fs
  ...

arch/ia64/kernel/perfmon.c

@@ -618,16 +618,15 @@ pfm_get_unmapped_area(struct file *file, unsigned long addr, unsigned long len,
 }
 
 
-static int
+static struct dentry *
-pfmfs_get_sb(struct file_system_type *fs_type, int flags, const char *dev_name, void *data,
+pfmfs_mount(struct file_system_type *fs_type, int flags, const char *dev_name, void *data)
-	     struct vfsmount *mnt)
 {
-	return get_sb_pseudo(fs_type, "pfm:", NULL, PFMFS_MAGIC, mnt);
+	return mount_pseudo(fs_type, "pfm:", NULL, PFMFS_MAGIC);
 }
 
 static struct file_system_type pfm_fs_type = {
 	.name     = "pfmfs",
-	.get_sb   = pfmfs_get_sb,
+	.mount    = pfmfs_mount,
 	.kill_sb  = kill_anon_super,
 };
 

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
+static struct dentry *
-spufs_get_sb(struct file_system_type *fstype, int flags,
+spufs_mount(struct file_system_type *fstype, int flags,
-		const char *name, void *data, struct vfsmount *mnt)
+		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,
 };
 

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,
+static struct dentry *hypfs_mount(struct file_system_type *fst, int flags,
-			const char *devname, void *data, struct vfsmount *mnt)
+			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
 };
 

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,
+static struct dentry *dev_mount(struct file_system_type *fs_type, int flags,
-		      const char *dev_name, void *data, struct vfsmount *mnt)
+		      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)

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,
+static struct dentry *ipathfs_mount(struct file_system_type *fs_type,
-			const char *dev_name, void *data, struct vfsmount *mnt)
+			int flags, const char *dev_name, void *data)
 {
-	int ret = get_sb_single(fs_type, flags, data,
+	struct dentry *ret;
-				    ipathfs_fill_super, mnt);
+	ret = mount_single(fs_type, flags, data, ipathfs_fill_super);
-	if (ret >= 0)
+	if (!IS_ERR(ret))
-		ipath_super = mnt->mnt_sb;
+		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,
 };
 

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,
+static struct dentry *qibfs_mount(struct file_system_type *fs_type, int flags,
-			const char *dev_name, void *data, struct vfsmount *mnt)
+			const char *dev_name, void *data)
 {
-	int ret = get_sb_single(fs_type, flags, data,
+	struct dentry *ret;
-				qibfs_fill_super, mnt);
+	ret = mount_single(fs_type, flags, data, qibfs_fill_super);
-	if (ret >= 0)
+	if (!IS_ERR(ret))
-		qib_super = mnt->mnt_sb;
+		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,
 };
 

drivers/isdn/capi/capifs.c

@@ -125,16 +125,16 @@ fail:
 	return -ENOMEM;
 }
 
-static int capifs_get_sb(struct file_system_type *fs_type,
+static struct dentry *capifs_mount(struct file_system_type *fs_type,
-	int flags, const char *dev_name, void *data, struct vfsmount *mnt)
+	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,
 };
 

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,
+static struct dentry *ibmasmfs_mount(struct file_system_type *fst,
-			int flags, const char *name, void *data,
+			int flags, const char *name, void *data)
-			struct vfsmount *mnt)
 {
-	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,
 };
 

drivers/mtd/mtdchar.c

@@ -1030,17 +1030,15 @@ static const struct file_operations mtd_fops = {
 #endif
 };
 
-static int mtd_inodefs_get_sb(struct file_system_type *fs_type, int flags,
+static struct dentry *mtd_inodefs_mount(struct file_system_type *fs_type,
-                               const char *dev_name, void *data,
+				int flags, const char *dev_name, void *data)
-                               struct vfsmount *mnt)
 {
-        return get_sb_pseudo(fs_type, "mtd_inode:", NULL, MTD_INODE_FS_MAGIC,
+        return mount_pseudo(fs_type, "mtd_inode:", NULL, MTD_INODE_FS_MAGIC);
-                             mnt);
 }
 
 static struct file_system_type mtd_inodefs_type = {
        .name = "mtd_inodefs",
-       .get_sb = mtd_inodefs_get_sb,
+       .mount = mtd_inodefs_mount,
        .kill_sb = kill_anon_super,
 };
 

drivers/mtd/mtdsuper.c

@@ -54,11 +54,10 @@ static int get_sb_mtd_set(struct super_block *sb, void *_mtd)
 /*
  * get a superblock on an MTD-backed filesystem
  */
-static int get_sb_mtd_aux(struct file_system_type *fs_type, int flags,
+static struct dentry *mount_mtd_aux(struct file_system_type *fs_type, int flags,
 			  const char *dev_name, void *data,
 			  struct mtd_info *mtd,
-			  int (*fill_super)(struct super_block *, void *, int),
+			  int (*fill_super)(struct super_block *, void *, int))
-			  struct vfsmount *mnt)
 {
 	struct super_block *sb;
 	int ret;
@@ -79,57 +78,49 @@ 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) {
 		deactivate_locked_super(sb);
-		return ret;
+		return ERR_PTR(ret);
 	}
 
 	/* go */
 	sb->s_flags |= MS_ACTIVE;
-	simple_set_mnt(mnt, sb);
+	return dget(sb->s_root);
-
-	return 0;
 
 	/* new mountpoint for an already mounted superblock */
 already_mounted:
 	DEBUG(1, "MTDSB: Device %d (\"%s\") is already mounted\n",
 	      mtd->index, mtd->name);
-	simple_set_mnt(mnt, sb);
+	put_mtd_device(mtd);
-	ret = 0;
+	return dget(sb->s_root);
-	goto out_put;
 
 out_error:
-	ret = PTR_ERR(sb);
-out_put:
 	put_mtd_device(mtd);
-	return ret;
+	return ERR_CAST(sb);
 }
 
 /*
  * get a superblock on an MTD-backed filesystem by MTD device number
  */
-static int get_sb_mtd_nr(struct file_system_type *fs_type, int flags,
+static struct dentry *mount_mtd_nr(struct file_system_type *fs_type, int flags,
 			 const char *dev_name, void *data, int mtdnr,
-			 int (*fill_super)(struct super_block *, void *, int),
+			 int (*fill_super)(struct super_block *, void *, int))
-			 struct vfsmount *mnt)
 {
 	struct mtd_info *mtd;
 
 	mtd = get_mtd_device(NULL, mtdnr);
 	if (IS_ERR(mtd)) {
 		DEBUG(0, "MTDSB: Device #%u doesn't appear to exist\n", mtdnr);
-		return PTR_ERR(mtd);
+		return ERR_CAST(mtd);
 	}
 
-	return get_sb_mtd_aux(fs_type, flags, dev_name, data, mtd, fill_super,
+	return mount_mtd_aux(fs_type, flags, dev_name, data, mtd, fill_super);
-			      mnt);
 }
 
 /*
  * set up an MTD-based superblock
  */
-int get_sb_mtd(struct file_system_type *fs_type, int flags,
+struct dentry *mount_mtd(struct file_system_type *fs_type, int flags,
 	       const char *dev_name, void *data,
-	       int (*fill_super)(struct super_block *, void *, int),
+	       int (*fill_super)(struct super_block *, void *, int))
-	       struct vfsmount *mnt)
 {
 #ifdef CONFIG_BLOCK
 	struct block_device *bdev;
@@ -138,7 +129,7 @@ int get_sb_mtd(struct file_system_type *fs_type, int flags,
 	int mtdnr;
 
 	if (!dev_name)
-		return -EINVAL;
+		return ERR_PTR(-EINVAL);
 
 	DEBUG(2, "MTDSB: dev_name \"%s\"\n", dev_name);
 
@@ -156,10 +147,10 @@ int get_sb_mtd(struct file_system_type *fs_type, int flags,
 
 			mtd = get_mtd_device_nm(dev_name + 4);
 			if (!IS_ERR(mtd))
-				return get_sb_mtd_aux(
+				return mount_mtd_aux(
 					fs_type, flags,
 					dev_name, data, mtd,
-					fill_super, mnt);
+					fill_super);
 
 			printk(KERN_NOTICE "MTD:"
 			       " MTD device with name \"%s\" not found.\n",
@@ -174,9 +165,9 @@ int get_sb_mtd(struct file_system_type *fs_type, int flags,
 				/* It was a valid number */
 				DEBUG(1, "MTDSB: mtd%%d, mtdnr %d\n",
 				      mtdnr);
-				return get_sb_mtd_nr(fs_type, flags,
+				return mount_mtd_nr(fs_type, flags,
 						     dev_name, data,
-						     mtdnr, fill_super, mnt);
+						     mtdnr, fill_super);
 			}
 		}
 	}
@@ -189,7 +180,7 @@ int get_sb_mtd(struct file_system_type *fs_type, int flags,
 	if (IS_ERR(bdev)) {
 		ret = PTR_ERR(bdev);
 		DEBUG(1, "MTDSB: lookup_bdev() returned %d\n", ret);
-		return ret;
+		return ERR_PTR(ret);
 	}
 	DEBUG(1, "MTDSB: lookup_bdev() returned 0\n");
 
@@ -202,8 +193,7 @@ int get_sb_mtd(struct file_system_type *fs_type, int flags,
 	if (major != MTD_BLOCK_MAJOR)
 		goto not_an_MTD_device;
 
-	return get_sb_mtd_nr(fs_type, flags, dev_name, data, mtdnr, fill_super,
+	return mount_mtd_nr(fs_type, flags, dev_name, data, mtdnr, fill_super);
-			     mnt);
 
 not_an_MTD_device:
 #endif /* CONFIG_BLOCK */
@@ -212,10 +202,10 @@ not_an_MTD_device:
 		printk(KERN_NOTICE
 		       "MTD: Attempt to mount non-MTD device \"%s\"\n",
 		       dev_name);
-	return -EINVAL;
+	return ERR_PTR(-EINVAL);
 }
 
-EXPORT_SYMBOL_GPL(get_sb_mtd);
+EXPORT_SYMBOL_GPL(mount_mtd);
 
 /*
  * destroy an MTD-based superblock

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,
+static struct dentry *oprofilefs_mount(struct file_system_type *fs_type,
-	int flags, const char *dev_name, void *data, struct vfsmount *mnt)
+	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,
 };
 

drivers/staging/autofs/init.c

@@ -14,16 +14,16 @@
 #include <linux/init.h>
 #include "autofs_i.h"
 
-static int autofs_get_sb(struct file_system_type *fs_type,
+static struct dentry *autofs_mount(struct file_system_type *fs_type,
-	int flags, const char *dev_name, void *data, struct vfsmount *mnt)
+	int flags, const char *dev_name, void *data)
 {
-	return get_sb_nodev(fs_type, flags, data, autofs_fill_super, mnt);
+	return mount_nodev(fs_type, flags, data, autofs_fill_super);
 }
 
 static struct file_system_type autofs_fs_type = {
 	.owner		= THIS_MODULE,
 	.name		= "autofs",
-	.get_sb		= autofs_get_sb,
+	.mount		= autofs_mount,
 	.kill_sb	= autofs_kill_sb,
 };
 

drivers/staging/pohmelfs/inode.c

@@ -1937,11 +1937,10 @@ err_out_exit:
 /*
  * Some VFS magic here...
  */
-static int pohmelfs_get_sb(struct file_system_type *fs_type,
+static struct dentry *pohmelfs_mount(struct file_system_type *fs_type,
-	int flags, const char *dev_name, void *data, struct vfsmount *mnt)
+	int flags, const char *dev_name, void *data)
 {
-	return get_sb_nodev(fs_type, flags, data, pohmelfs_fill_super,
+	return mount_nodev(fs_type, flags, data, pohmelfs_fill_super);
-				mnt);
 }
 
 /*
@@ -1958,7 +1957,7 @@ static void pohmelfs_kill_super(struct super_block *sb)
 static struct file_system_type pohmel_fs_type = {
 	.owner		= THIS_MODULE,
 	.name		= "pohmel",
-	.get_sb		= pohmelfs_get_sb,
+	.mount		= pohmelfs_mount,
 	.kill_sb 	= pohmelfs_kill_super,
 };
 

drivers/staging/smbfs/inode.c

@@ -793,16 +793,16 @@ out:
 	return error;
 }
 
-static int smb_get_sb(struct file_system_type *fs_type,
+static struct dentry *smb_mount(struct file_system_type *fs_type,
-	int flags, const char *dev_name, void *data, struct vfsmount *mnt)
+	int flags, const char *dev_name, void *data)
 {
-	return get_sb_nodev(fs_type, flags, data, smb_fill_super, mnt);
+	return mount_nodev(fs_type, flags, data, smb_fill_super);
 }
 
 static struct file_system_type smb_fs_type = {
 	.owner		= THIS_MODULE,
 	.name		= "smbfs",
-	.get_sb		= smb_get_sb,
+	.mount		= smb_mount,
 	.kill_sb	= kill_anon_super,
 	.fs_flags	= FS_BINARY_MOUNTDATA,
 };

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,
+static struct dentry *usb_mount(struct file_system_type *fs_type,
-	int flags, const char *dev_name, void *data, struct vfsmount *mnt)
+	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,
 };
 

drivers/usb/gadget/f_fs.c

@@ -1176,9 +1176,9 @@ invalid:
 
 /* "mount -t functionfs dev_name /dev/function" ends up here */
 
-static int
+static struct dentry *
-ffs_fs_get_sb(struct file_system_type *t, int flags,
+ffs_fs_mount(struct file_system_type *t, int flags,
-	      const char *dev_name, void *opts, struct vfsmount *mnt)
+	      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,
 };
 

drivers/usb/gadget/inode.c

@@ -2097,11 +2097,11 @@ enomem0:
 }
 
 /* "mount -t gadgetfs path /dev/gadget" ends up here */
-static int
+static struct dentry *
-gadgetfs_get_sb (struct file_system_type *t, int flags,
+gadgetfs_mount (struct file_system_type *t, int flags,
-		const char *path, void *opts, struct vfsmount *mnt)
+		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,
 };
 

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,
 };
 

fs/9p/vfs_super.c

@@ -68,7 +68,7 @@ static int v9fs_set_super(struct super_block *s, void *data)
  * v9fs_fill_super - populate superblock with info
  * @sb: superblock
  * @v9ses: session information
- * @flags: flags propagated from v9fs_get_sb()
+ * @flags: flags propagated from v9fs_mount()
  *
  */
 
@@ -99,18 +99,16 @@ v9fs_fill_super(struct super_block *sb, struct v9fs_session_info *v9ses,
 }
 
 /**
- * v9fs_get_sb - mount a superblock
+ * v9fs_mount - mount a superblock
  * @fs_type: file system type
  * @flags: mount flags
  * @dev_name: device name that was mounted
  * @data: mount options
- * @mnt: mountpoint record to be instantiated
  *
  */
 
-static int v9fs_get_sb(struct file_system_type *fs_type, int flags,
+static struct dentry *v9fs_mount(struct file_system_type *fs_type, int flags,
-		       const char *dev_name, void *data,
+		       const char *dev_name, void *data)
-		       struct vfsmount *mnt)
 {
 	struct super_block *sb = NULL;
 	struct inode *inode = NULL;
@@ -124,7 +122,7 @@ static int v9fs_get_sb(struct file_system_type *fs_type, int flags,
 
 	v9ses = kzalloc(sizeof(struct v9fs_session_info), GFP_KERNEL);
 	if (!v9ses)
-		return -ENOMEM;
+		return ERR_PTR(-ENOMEM);
 
 	fid = v9fs_session_init(v9ses, dev_name, data);
 	if (IS_ERR(fid)) {
@@ -186,15 +184,15 @@ static int v9fs_get_sb(struct file_system_type *fs_type, int flags,
 	v9fs_fid_add(root, fid);
 
 	P9_DPRINTK(P9_DEBUG_VFS, " simple set mount, return 0\n");
-	simple_set_mnt(mnt, sb);
+	return dget(sb->s_root);
-	return 0;
 
 clunk_fid:
 	p9_client_clunk(fid);
 close_session:
 	v9fs_session_close(v9ses);
 	kfree(v9ses);
-	return retval;
+	return ERR_PTR(retval);
+
 release_sb:
 	/*
 	 * we will do the session_close and root dentry release
@@ -204,7 +202,7 @@ release_sb:
 	 */
 	p9_client_clunk(fid);
 	deactivate_locked_super(sb);
-	return retval;
+	return ERR_PTR(retval);
 }
 
 /**
@@ -300,7 +298,7 @@ static const struct super_operations v9fs_super_ops_dotl = {
 
 struct file_system_type v9fs_fs_type = {
 	.name = "9p",
-	.get_sb = v9fs_get_sb,
+	.mount = v9fs_mount,
 	.kill_sb = v9fs_kill_super,
 	.owner = THIS_MODULE,
 	.fs_flags = FS_RENAME_DOES_D_MOVE,

fs/adfs/super.c

@@ -490,17 +490,16 @@ error:
 	return -EINVAL;
 }
 
-static int adfs_get_sb(struct file_system_type *fs_type,
+static struct dentry *adfs_mount(struct file_system_type *fs_type,
-	int flags, const char *dev_name, void *data, struct vfsmount *mnt)
+	int flags, const char *dev_name, void *data)
 {
-	return get_sb_bdev(fs_type, flags, dev_name, data, adfs_fill_super,
+	return mount_bdev(fs_type, flags, dev_name, data, adfs_fill_super);
-			   mnt);
 }
 
 static struct file_system_type adfs_fs_type = {
 	.owner		= THIS_MODULE,
 	.name		= "adfs",
-	.get_sb		= adfs_get_sb,
+	.mount		= adfs_mount,
 	.kill_sb	= kill_block_super,
 	.fs_flags	= FS_REQUIRES_DEV,
 };

fs/affs/super.c

@@ -573,17 +573,16 @@ affs_statfs(struct dentry *dentry, struct kstatfs *buf)
 	return 0;
 }
 
-static int affs_get_sb(struct file_system_type *fs_type,
+static struct dentry *affs_mount(struct file_system_type *fs_type,
-	int flags, const char *dev_name, void *data, struct vfsmount *mnt)
+	int flags, const char *dev_name, void *data)
 {
-	return get_sb_bdev(fs_type, flags, dev_name, data, affs_fill_super,
+	return mount_bdev(fs_type, flags, dev_name, data, affs_fill_super);
-			   mnt);
 }
 
 static struct file_system_type affs_fs_type = {
 	.owner		= THIS_MODULE,
 	.name		= "affs",
-	.get_sb		= affs_get_sb,
+	.mount		= affs_mount,
 	.kill_sb	= kill_block_super,
 	.fs_flags	= FS_REQUIRES_DEV,
 };

fs/afs/super.c

@@ -29,9 +29,8 @@
 #define AFS_FS_MAGIC 0x6B414653 /* 'kAFS' */
 
 static void afs_i_init_once(void *foo);
-static int afs_get_sb(struct file_system_type *fs_type,
+static struct dentry *afs_mount(struct file_system_type *fs_type,
-		      int flags, const char *dev_name,
+		      int flags, const char *dev_name, void *data);
-		      void *data, struct vfsmount *mnt);
 static struct inode *afs_alloc_inode(struct super_block *sb);
 static void afs_put_super(struct super_block *sb);
 static void afs_destroy_inode(struct inode *inode);
@@ -40,7 +39,7 @@ static int afs_statfs(struct dentry *dentry, struct kstatfs *buf);
 struct file_system_type afs_fs_type = {
 	.owner		= THIS_MODULE,
 	.name		= "afs",
-	.get_sb		= afs_get_sb,
+	.mount		= afs_mount,
 	.kill_sb	= kill_anon_super,
 	.fs_flags	= 0,
 };
@@ -359,11 +358,8 @@ error:
 /*
  * get an AFS superblock
  */
-static int afs_get_sb(struct file_system_type *fs_type,
+static struct dentry *afs_mount(struct file_system_type *fs_type,
-		      int flags,
+		      int flags, const char *dev_name, void *options)
-		      const char *dev_name,
-		      void *options,
-		      struct vfsmount *mnt)
 {
 	struct afs_mount_params params;
 	struct super_block *sb;
@@ -427,12 +423,11 @@ static int afs_get_sb(struct file_system_type *fs_type,
 		ASSERTCMP(sb->s_flags, &, MS_ACTIVE);
 	}
 
-	simple_set_mnt(mnt, sb);
 	afs_put_volume(params.volume);
 	afs_put_cell(params.cell);
 	kfree(new_opts);
 	_leave(" = 0 [%p]", sb);
-	return 0;
+	return dget(sb->s_root);
 
 error:
 	afs_put_volume(params.volume);
@@ -440,7 +435,7 @@ error:
 	key_put(params.key);
 	kfree(new_opts);
 	_leave(" = %d", ret);
-	return ret;
+	return ERR_PTR(ret);
 }
 
 /*

fs/anon_inodes.c

@@ -26,12 +26,10 @@ static struct vfsmount *anon_inode_mnt __read_mostly;
 static struct inode *anon_inode_inode;
 static const struct file_operations anon_inode_fops;
 
-static int anon_inodefs_get_sb(struct file_system_type *fs_type, int flags,
+static struct dentry *anon_inodefs_mount(struct file_system_type *fs_type,
-			       const char *dev_name, void *data,
+				int flags, const char *dev_name, void *data)
-			       struct vfsmount *mnt)
 {
-	return get_sb_pseudo(fs_type, "anon_inode:", NULL, ANON_INODE_FS_MAGIC,
+	return mount_pseudo(fs_type, "anon_inode:", NULL, ANON_INODE_FS_MAGIC);
-			     mnt);
 }
 
 /*
@@ -45,7 +43,7 @@ static char *anon_inodefs_dname(struct dentry *dentry, char *buffer, int buflen)
 
 static struct file_system_type anon_inode_fs_type = {
 	.name		= "anon_inodefs",
-	.get_sb		= anon_inodefs_get_sb,
+	.mount		= anon_inodefs_mount,
 	.kill_sb	= kill_anon_super,
 };
 static const struct dentry_operations anon_inodefs_dentry_operations = {

fs/autofs4/init.c

@@ -14,16 +14,16 @@
 #include <linux/init.h>
 #include "autofs_i.h"
 
-static int autofs_get_sb(struct file_system_type *fs_type,
+static struct dentry *autofs_mount(struct file_system_type *fs_type,
-	int flags, const char *dev_name, void *data, struct vfsmount *mnt)
+	int flags, const char *dev_name, void *data)
 {
-	return get_sb_nodev(fs_type, flags, data, autofs4_fill_super, mnt);
+	return mount_nodev(fs_type, flags, data, autofs4_fill_super);
 }
 
 static struct file_system_type autofs_fs_type = {
 	.owner		= THIS_MODULE,
 	.name		= "autofs",
-	.get_sb		= autofs_get_sb,
+	.mount		= autofs_mount,
 	.kill_sb	= autofs4_kill_sb,
 };
 

fs/befs/linuxvfs.c

@@ -913,18 +913,17 @@ befs_statfs(struct dentry *dentry, struct kstatfs *buf)
 	return 0;
 }
 
-static int
+static struct dentry *
-befs_get_sb(struct file_system_type *fs_type, int flags, const char *dev_name,
+befs_mount(struct file_system_type *fs_type, int flags, const char *dev_name,
-	    void *data, struct vfsmount *mnt)
+	    void *data)
 {
-	return get_sb_bdev(fs_type, flags, dev_name, data, befs_fill_super,
+	return mount_bdev(fs_type, flags, dev_name, data, befs_fill_super);
-			   mnt);
 }
 
 static struct file_system_type befs_fs_type = {
 	.owner		= THIS_MODULE,
 	.name		= "befs",
-	.get_sb		= befs_get_sb,
+	.mount		= befs_mount,
 	.kill_sb	= kill_block_super,
 	.fs_flags	= FS_REQUIRES_DEV,	
 };

fs/bfs/inode.c

@@ -450,16 +450,16 @@ out:
 	return ret;
 }
 
-static int bfs_get_sb(struct file_system_type *fs_type,
+static struct dentry *bfs_mount(struct file_system_type *fs_type,
-	int flags, const char *dev_name, void *data, struct vfsmount *mnt)
+	int flags, const char *dev_name, void *data)
 {
-	return get_sb_bdev(fs_type, flags, dev_name, data, bfs_fill_super, mnt);
+	return mount_bdev(fs_type, flags, dev_name, data, bfs_fill_super);
 }
 
 static struct file_system_type bfs_fs_type = {
 	.owner		= THIS_MODULE,
 	.name		= "bfs",
-	.get_sb		= bfs_get_sb,
+	.mount		= bfs_mount,
 	.kill_sb	= kill_block_super,
 	.fs_flags	= FS_REQUIRES_DEV,
 };

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,
+static struct dentry *bm_mount(struct file_system_type *fs_type,
-	int flags, const char *dev_name, void *data, struct vfsmount *mnt)
+	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,
 };
 

fs/block_dev.c

@@ -464,15 +464,15 @@ static const struct super_operations bdev_sops = {
 	.evict_inode = bdev_evict_inode,
 };
 
-static int bd_get_sb(struct file_system_type *fs_type,
+static struct dentry *bd_mount(struct file_system_type *fs_type,
-	int flags, const char *dev_name, void *data, struct vfsmount *mnt)
+	int flags, const char *dev_name, void *data)
 {
-	return get_sb_pseudo(fs_type, "bdev:", &bdev_sops, 0x62646576, mnt);
+	return mount_pseudo(fs_type, "bdev:", &bdev_sops, 0x62646576);
 }
 
 static struct file_system_type bd_type = {
 	.name		= "bdev",
-	.get_sb		= bd_get_sb,
+	.mount		= bd_mount,
 	.kill_sb	= kill_anon_super,
 };
 

fs/btrfs/super.c

@@ -560,8 +560,8 @@ static int btrfs_test_super(struct super_block *s, void *data)
  * Note:  This is based on get_sb_bdev from fs/super.c with a few additions
  *	  for multiple device setup.  Make sure to keep it in sync.
  */
-static int btrfs_get_sb(struct file_system_type *fs_type, int flags,
+static struct dentry *btrfs_mount(struct file_system_type *fs_type, int flags,
-		const char *dev_name, void *data, struct vfsmount *mnt)
+		const char *dev_name, void *data)
 {
 	struct block_device *bdev = NULL;
 	struct super_block *s;
@@ -580,7 +580,7 @@ static int btrfs_get_sb(struct file_system_type *fs_type, int flags,
 					  &subvol_name, &subvol_objectid,
 					  &fs_devices);
 	if (error)
-		return error;
+		return ERR_PTR(error);
 
 	error = btrfs_scan_one_device(dev_name, mode, fs_type, &fs_devices);
 	if (error)
@@ -656,11 +656,8 @@ static int btrfs_get_sb(struct file_system_type *fs_type, int flags,
 		root = new_root;
 	}
 
-	mnt->mnt_sb = s;
-	mnt->mnt_root = root;
-
 	kfree(subvol_name);
-	return 0;
+	return root;
 
 error_s:
 	error = PTR_ERR(s);
@@ -669,7 +666,7 @@ error_close_devices:
 error_free_subvol_name:
 	kfree(subvol_name);
 error:
-	return error;
+	return ERR_PTR(error);
 }
 
 static int btrfs_remount(struct super_block *sb, int *flags, char *data)
@@ -746,7 +743,7 @@ static int btrfs_statfs(struct dentry *dentry, struct kstatfs *buf)
 static struct file_system_type btrfs_fs_type = {
 	.owner		= THIS_MODULE,
 	.name		= "btrfs",
-	.get_sb		= btrfs_get_sb,
+	.mount		= btrfs_mount,
 	.kill_sb	= kill_anon_super,
 	.fs_flags	= FS_REQUIRES_DEV,
 };

fs/ceph/super.c

@@ -635,7 +635,7 @@ static struct dentry *open_root_dentry(struct ceph_fs_client *fsc,
 /*
  * mount: join the ceph cluster, and open root directory.
  */
-static int ceph_mount(struct ceph_fs_client *fsc, struct vfsmount *mnt,
+static struct dentry *ceph_real_mount(struct ceph_fs_client *fsc,
 		      const char *path)
 {
 	int err;
@@ -678,16 +678,14 @@ static int ceph_mount(struct ceph_fs_client *fsc, struct vfsmount *mnt,
 		}
 	}
 
-	mnt->mnt_root = root;
-	mnt->mnt_sb = fsc->sb;
-
 	fsc->mount_state = CEPH_MOUNT_MOUNTED;
 	dout("mount success\n");
-	err = 0;
+	mutex_unlock(&fsc->client->mount_mutex);
+	return root;
 
 out:
 	mutex_unlock(&fsc->client->mount_mutex);
-	return err;
+	return ERR_PTR(err);
 
 fail:
 	if (first) {
@@ -777,41 +775,45 @@ static int ceph_register_bdi(struct super_block *sb,
 	return err;
 }
 
-static int ceph_get_sb(struct file_system_type *fs_type,
+static struct dentry *ceph_mount(struct file_system_type *fs_type,
-		       int flags, const char *dev_name, void *data,
+		       int flags, const char *dev_name, void *data)
-		       struct vfsmount *mnt)
 {
 	struct super_block *sb;
 	struct ceph_fs_client *fsc;
+	struct dentry *res;
 	int err;
 	int (*compare_super)(struct super_block *, void *) = ceph_compare_super;
 	const char *path = NULL;
 	struct ceph_mount_options *fsopt = NULL;
 	struct ceph_options *opt = NULL;
 
-	dout("ceph_get_sb\n");
+	dout("ceph_mount\n");
 	err = parse_mount_options(&fsopt, &opt, flags, data, dev_name, &path);
-	if (err < 0)
+	if (err < 0) {
+		res = ERR_PTR(err);
 		goto out_final;
+	}
 
 	/* create client (which we may/may not use) */
 	fsc = create_fs_client(fsopt, opt);
 	if (IS_ERR(fsc)) {
-		err = PTR_ERR(fsc);
+		res = ERR_CAST(fsc);
 		kfree(fsopt);
 		kfree(opt);
 		goto out_final;
 	}
 
 	err = ceph_mdsc_init(fsc);
-	if (err < 0)
+	if (err < 0) {
+		res = ERR_PTR(err);
 		goto out;
+	}
 
 	if (ceph_test_opt(fsc->client, NOSHARE))
 		compare_super = NULL;
 	sb = sget(fs_type, compare_super, ceph_set_super, fsc);
 	if (IS_ERR(sb)) {
-		err = PTR_ERR(sb);
+		res = ERR_CAST(sb);
 		goto out;
 	}
 
@@ -823,16 +825,18 @@ static int ceph_get_sb(struct file_system_type *fs_type,
 	} else {
 		dout("get_sb using new client %p\n", fsc);
 		err = ceph_register_bdi(sb, fsc);
-		if (err < 0)
+		if (err < 0) {
+			res = ERR_PTR(err);
 			goto out_splat;
 		}
+	}
 
-	err = ceph_mount(fsc, mnt, path);
+	res = ceph_real_mount(fsc, path);
-	if (err < 0)
+	if (IS_ERR(res))
 		goto out_splat;
-	dout("root %p inode %p ino %llx.%llx\n", mnt->mnt_root,
+	dout("root %p inode %p ino %llx.%llx\n", res,
-	     mnt->mnt_root->d_inode, ceph_vinop(mnt->mnt_root->d_inode));
+	     res->d_inode, ceph_vinop(res->d_inode));
-	return 0;
+	return res;
 
 out_splat:
 	ceph_mdsc_close_sessions(fsc->mdsc);
@@ -843,8 +847,8 @@ out:
 	ceph_mdsc_destroy(fsc);
 	destroy_fs_client(fsc);
 out_final:
-	dout("ceph_get_sb fail %d\n", err);
+	dout("ceph_mount fail %ld\n", PTR_ERR(res));
-	return err;
+	return res;
 }
 
 static void ceph_kill_sb(struct super_block *s)
@@ -860,7 +864,7 @@ static void ceph_kill_sb(struct super_block *s)
 static struct file_system_type ceph_fs_type = {
 	.owner		= THIS_MODULE,
 	.name		= "ceph",
-	.get_sb		= ceph_get_sb,
+	.mount		= ceph_mount,
 	.kill_sb	= ceph_kill_sb,
 	.fs_flags	= FS_RENAME_DOES_D_MOVE,
 };

fs/cifs/cifsfs.c

@@ -545,9 +545,9 @@ static const struct super_operations cifs_super_ops = {
 #endif
 };
 
-static int
+static struct dentry *
-cifs_get_sb(struct file_system_type *fs_type,
+cifs_do_mount(struct file_system_type *fs_type,
-	    int flags, const char *dev_name, void *data, struct vfsmount *mnt)
+	    int flags, const char *dev_name, void *data)
 {
 	int rc;
 	struct super_block *sb;
@@ -557,18 +557,17 @@ cifs_get_sb(struct file_system_type *fs_type,
 	cFYI(1, "Devname: %s flags: %d ", dev_name, flags);
 
 	if (IS_ERR(sb))
-		return PTR_ERR(sb);
+		return ERR_CAST(sb);
 
 	sb->s_flags = flags;
 
 	rc = cifs_read_super(sb, data, dev_name, flags & MS_SILENT ? 1 : 0);
 	if (rc) {
 		deactivate_locked_super(sb);
-		return rc;
+		return ERR_PTR(rc);
 	}
 	sb->s_flags |= MS_ACTIVE;
-	simple_set_mnt(mnt, sb);
+	return dget(sb->s_root);
-	return 0;
 }
 
 static ssize_t cifs_file_aio_write(struct kiocb *iocb, const struct iovec *iov,
@@ -634,7 +633,7 @@ static int cifs_setlease(struct file *file, long arg, struct file_lock **lease)
 struct file_system_type cifs_fs_type = {
 	.owner = THIS_MODULE,
 	.name = "cifs",
-	.get_sb = cifs_get_sb,
+	.mount = cifs_do_mount,
 	.kill_sb = kill_anon_super,
 	/*  .fs_flags */
 };

fs/coda/inode.c

@@ -306,16 +306,16 @@ static int coda_statfs(struct dentry *dentry, struct kstatfs *buf)
 
 /* init_coda: used by filesystems.c to register coda */
 
-static int coda_get_sb(struct file_system_type *fs_type,
+static struct dentry *coda_mount(struct file_system_type *fs_type,
-	int flags, const char *dev_name, void *data, struct vfsmount *mnt)
+	int flags, const char *dev_name, void *data)
 {
-	return get_sb_nodev(fs_type, flags, data, coda_fill_super, mnt);
+	return mount_nodev(fs_type, flags, data, coda_fill_super);
 }
 
 struct file_system_type coda_fs_type = {
 	.owner		= THIS_MODULE,
 	.name		= "coda",
-	.get_sb		= coda_get_sb,
+	.mount		= coda_mount,
 	.kill_sb	= kill_anon_super,
 	.fs_flags	= FS_BINARY_MOUNTDATA,
 };

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,
+static struct dentry *configfs_do_mount(struct file_system_type *fs_type,
-	int flags, const char *dev_name, void *data, struct vfsmount *mnt)
+	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,
 };
 

fs/cramfs/inode.c

@@ -533,17 +533,16 @@ static const struct super_operations cramfs_ops = {
 	.statfs		= cramfs_statfs,
 };
 
-static int cramfs_get_sb(struct file_system_type *fs_type,
+static struct dentry *cramfs_mount(struct file_system_type *fs_type,
-	int flags, const char *dev_name, void *data, struct vfsmount *mnt)
+	int flags, const char *dev_name, void *data)
 {
-	return get_sb_bdev(fs_type, flags, dev_name, data, cramfs_fill_super,
+	return mount_bdev(fs_type, flags, dev_name, data, cramfs_fill_super);
-			   mnt);
 }
 
 static struct file_system_type cramfs_fs_type = {
 	.owner		= THIS_MODULE,
 	.name		= "cramfs",
-	.get_sb		= cramfs_get_sb,
+	.mount		= cramfs_mount,
 	.kill_sb	= kill_block_super,
 	.fs_flags	= FS_REQUIRES_DEV,
 };

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,
 };
 

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(),
+ *     For single-mount semantics, devpts cannot use mount_single(),
- *     because get_sb_single()/sget() find and use the super-block from
+ *     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,
+static struct dentry *devpts_mount(struct file_system_type *fs_type,
-	int flags, const char *dev_name, void *data, struct vfsmount *mnt)
+	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 dget(s->s_root);
-
-	return 0;
 
 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,
+static struct dentry *devpts_mount(struct file_system_type *fs_type, int flags,
-		const char *dev_name, void *data, struct vfsmount *mnt)
+		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,
 };
 

fs/ecryptfs/main.c

@@ -540,9 +540,8 @@ out:
  *                        ecryptfs_interpose to perform most of the linking
  * ecryptfs_interpose(): links the lower filesystem into ecryptfs (inode.c)
  */
-static int ecryptfs_get_sb(struct file_system_type *fs_type, int flags,
+static struct dentry *ecryptfs_mount(struct file_system_type *fs_type, int flags,
-			const char *dev_name, void *raw_data,
+			const char *dev_name, void *raw_data)
-			struct vfsmount *mnt)
 {
 	struct super_block *s;
 	struct ecryptfs_sb_info *sbi;
@@ -607,8 +606,7 @@ static int ecryptfs_get_sb(struct file_system_type *fs_type, int flags,
 		err = "Reading sb failed";
 		goto out;
 	}
-	simple_set_mnt(mnt, s);
+	return dget(s->s_root);
-	return 0;
 
 out:
 	if (sbi) {
@@ -616,7 +614,7 @@ out:
 		kmem_cache_free(ecryptfs_sb_info_cache, sbi);
 	}
 	printk(KERN_ERR "%s; rc = [%d]\n", err, rc);
-	return rc;
+	return ERR_PTR(rc);
 }
 
 /**
@@ -639,7 +637,7 @@ static void ecryptfs_kill_block_super(struct super_block *sb)
 static struct file_system_type ecryptfs_fs_type = {
 	.owner = THIS_MODULE,
 	.name = "ecryptfs",
-	.get_sb = ecryptfs_get_sb,
+	.mount = ecryptfs_mount,
 	.kill_sb = ecryptfs_kill_block_super,
 	.fs_flags = 0
 };

fs/efs/super.c

@@ -20,16 +20,16 @@
 static int efs_statfs(struct dentry *dentry, struct kstatfs *buf);
 static int efs_fill_super(struct super_block *s, void *d, int silent);
 
-static int efs_get_sb(struct file_system_type *fs_type,
+static struct dentry *efs_mount(struct file_system_type *fs_type,
-	int flags, const char *dev_name, void *data, struct vfsmount *mnt)
+	int flags, const char *dev_name, void *data)
 {
-	return get_sb_bdev(fs_type, flags, dev_name, data, efs_fill_super, mnt);
+	return mount_bdev(fs_type, flags, dev_name, data, efs_fill_super);
 }
 
 static struct file_system_type efs_fs_type = {
 	.owner		= THIS_MODULE,
 	.name		= "efs",
-	.get_sb		= efs_get_sb,
+	.mount		= efs_mount,
 	.kill_sb	= kill_block_super,
 	.fs_flags	= FS_REQUIRES_DEV,
 };

fs/exofs/super.c

@@ -659,19 +659,19 @@ free_bdi:
 /*
  * Set up the superblock (calls exofs_fill_super eventually)
  */
-static int exofs_get_sb(struct file_system_type *type,
+static struct dentry *exofs_mount(struct file_system_type *type,
 			  int flags, const char *dev_name,
-			  void *data, struct vfsmount *mnt)
+			  void *data)
 {
 	struct exofs_mountopt opts;
 	int ret;
 
 	ret = parse_options(data, &opts);
 	if (ret)
-		return ret;
+		return ERR_PTR(ret);
 
 	opts.dev_name = dev_name;
-	return get_sb_nodev(type, flags, &opts, exofs_fill_super, mnt);
+	return mount_nodev(type, flags, &opts, exofs_fill_super);
 }
 
 /*
@@ -809,7 +809,7 @@ static const struct export_operations exofs_export_ops = {
 static struct file_system_type exofs_type = {
 	.owner          = THIS_MODULE,
 	.name           = "exofs",
-	.get_sb         = exofs_get_sb,
+	.mount          = exofs_mount,
 	.kill_sb        = generic_shutdown_super,
 };
 

fs/ext2/super.c

@@ -1356,10 +1356,10 @@ static int ext2_statfs (struct dentry * dentry, struct kstatfs * buf)
 	return 0;
 }
 
-static int ext2_get_sb(struct file_system_type *fs_type,
+static struct dentry *ext2_mount(struct file_system_type *fs_type,
-	int flags, const char *dev_name, void *data, struct vfsmount *mnt)
+	int flags, const char *dev_name, void *data)
 {
-	return get_sb_bdev(fs_type, flags, dev_name, data, ext2_fill_super, mnt);
+	return mount_bdev(fs_type, flags, dev_name, data, ext2_fill_super);
 }
 
 #ifdef CONFIG_QUOTA
@@ -1473,7 +1473,7 @@ out:
 static struct file_system_type ext2_fs_type = {
 	.owner		= THIS_MODULE,
 	.name		= "ext2",
-	.get_sb		= ext2_get_sb,
+	.mount		= ext2_mount,
 	.kill_sb	= kill_block_super,
 	.fs_flags	= FS_REQUIRES_DEV,
 };

fs/ext3/super.c

@@ -3020,16 +3020,16 @@ out:
 
 #endif
 
-static int ext3_get_sb(struct file_system_type *fs_type,
+static struct dentry *ext3_mount(struct file_system_type *fs_type,
-	int flags, const char *dev_name, void *data, struct vfsmount *mnt)
+	int flags, const char *dev_name, void *data)
 {
-	return get_sb_bdev(fs_type, flags, dev_name, data, ext3_fill_super, mnt);
+	return mount_bdev(fs_type, flags, dev_name, data, ext3_fill_super);
 }
 
 static struct file_system_type ext3_fs_type = {
 	.owner		= THIS_MODULE,
 	.name		= "ext3",
-	.get_sb		= ext3_get_sb,
+	.mount		= ext3_mount,
 	.kill_sb	= kill_block_super,
 	.fs_flags	= FS_REQUIRES_DEV,
 };

fs/ext4/super.c

@@ -73,8 +73,8 @@ static int ext4_statfs(struct dentry *dentry, struct kstatfs *buf);
 static int ext4_unfreeze(struct super_block *sb);
 static void ext4_write_super(struct super_block *sb);
 static int ext4_freeze(struct super_block *sb);
-static int ext4_get_sb(struct file_system_type *fs_type, int flags,
+static struct dentry *ext4_mount(struct file_system_type *fs_type, int flags,
-		       const char *dev_name, void *data, struct vfsmount *mnt);
+		       const char *dev_name, void *data);
 static void ext4_destroy_lazyinit_thread(void);
 static void ext4_unregister_li_request(struct super_block *sb);
 
@@ -82,7 +82,7 @@ static void ext4_unregister_li_request(struct super_block *sb);
 static struct file_system_type ext3_fs_type = {
 	.owner		= THIS_MODULE,
 	.name		= "ext3",
-	.get_sb		= ext4_get_sb,
+	.mount		= ext4_mount,
 	.kill_sb	= kill_block_super,
 	.fs_flags	= FS_REQUIRES_DEV,
 };
@@ -4667,17 +4667,17 @@ out:
 
 #endif
 
-static int ext4_get_sb(struct file_system_type *fs_type, int flags,
+static struct dentry *ext4_mount(struct file_system_type *fs_type, int flags,
-		       const char *dev_name, void *data, struct vfsmount *mnt)
+		       const char *dev_name, void *data)
 {
-	return get_sb_bdev(fs_type, flags, dev_name, data, ext4_fill_super,mnt);
+	return mount_bdev(fs_type, flags, dev_name, data, ext4_fill_super);
 }
 
 #if !defined(CONFIG_EXT2_FS) && !defined(CONFIG_EXT2_FS_MODULE) && defined(CONFIG_EXT4_USE_FOR_EXT23)
 static struct file_system_type ext2_fs_type = {
 	.owner		= THIS_MODULE,
 	.name		= "ext2",
-	.get_sb		= ext4_get_sb,
+	.mount		= ext4_mount,
 	.kill_sb	= kill_block_super,
 	.fs_flags	= FS_REQUIRES_DEV,
 };
@@ -4722,7 +4722,7 @@ static inline void unregister_as_ext3(void) { }
 static struct file_system_type ext4_fs_type = {
 	.owner		= THIS_MODULE,
 	.name		= "ext4",
-	.get_sb		= ext4_get_sb,
+	.mount		= ext4_mount,
 	.kill_sb	= kill_block_super,
 	.fs_flags	= FS_REQUIRES_DEV,
 };

fs/fat/namei_msdos.c

@@ -675,18 +675,17 @@ static int msdos_fill_super(struct super_block *sb, void *data, int silent)
 	return 0;
 }
 
-static int msdos_get_sb(struct file_system_type *fs_type,
+static struct dentry *msdos_mount(struct file_system_type *fs_type,
 			int flags, const char *dev_name,
-			void *data, struct vfsmount *mnt)
+			void *data)
 {
-	return get_sb_bdev(fs_type, flags, dev_name, data, msdos_fill_super,
+	return mount_bdev(fs_type, flags, dev_name, data, msdos_fill_super);
-			   mnt);
 }
 
 static struct file_system_type msdos_fs_type = {
 	.owner		= THIS_MODULE,
 	.name		= "msdos",
-	.get_sb		= msdos_get_sb,
+	.mount		= msdos_mount,
 	.kill_sb	= kill_block_super,
 	.fs_flags	= FS_REQUIRES_DEV,
 };

fs/fat/namei_vfat.c

@@ -1071,18 +1071,17 @@ static int vfat_fill_super(struct super_block *sb, void *data, int silent)
 	return 0;
 }
 
-static int vfat_get_sb(struct file_system_type *fs_type,
+static struct dentry *vfat_mount(struct file_system_type *fs_type,
 		       int flags, const char *dev_name,
-		       void *data, struct vfsmount *mnt)
+		       void *data)
 {
-	return get_sb_bdev(fs_type, flags, dev_name, data, vfat_fill_super,
+	return mount_bdev(fs_type, flags, dev_name, data, vfat_fill_super);
-			   mnt);
 }
 
 static struct file_system_type vfat_fs_type = {
 	.owner		= THIS_MODULE,
 	.name		= "vfat",
-	.get_sb		= vfat_get_sb,
+	.mount		= vfat_mount,
 	.kill_sb	= kill_block_super,
 	.fs_flags	= FS_REQUIRES_DEV,
 };

fs/freevxfs/vxfs_super.c

@@ -246,17 +246,16 @@ out:
 /*
  * The usual module blurb.
  */
-static int vxfs_get_sb(struct file_system_type *fs_type,
+static struct dentry *vxfs_mount(struct file_system_type *fs_type,
-	int flags, const char *dev_name, void *data, struct vfsmount *mnt)
+	int flags, const char *dev_name, void *data)
 {
-	return get_sb_bdev(fs_type, flags, dev_name, data, vxfs_fill_super,
+	return mount_bdev(fs_type, flags, dev_name, data, vxfs_fill_super);
-			   mnt);
 }
 
 static struct file_system_type vxfs_fs_type = {
 	.owner		= THIS_MODULE,
 	.name		= "vxfs",
-	.get_sb		= vxfs_get_sb,
+	.mount		= vxfs_mount,
 	.kill_sb	= kill_block_super,
 	.fs_flags	= FS_REQUIRES_DEV,
 };

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,
+static struct dentry *fuse_ctl_mount(struct file_system_type *fs_type,
-			const char *dev_name, void *raw_data,
+			int flags, const char *dev_name, void *raw_data)
-			struct vfsmount *mnt)
 {
-	return get_sb_single(fs_type, flags, raw_data,
+	return mount_single(fs_type, flags, raw_data, fuse_ctl_fill_super);
-				fuse_ctl_fill_super, mnt);
 }
 
 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,
 };
 

fs/fuse/inode.c

@@ -1041,11 +1041,11 @@ static int fuse_fill_super(struct super_block *sb, void *data, int silent)
 	return err;
 }
 
-static int fuse_get_sb(struct file_system_type *fs_type,
+static struct dentry *fuse_mount(struct file_system_type *fs_type,
 		       int flags, const char *dev_name,
-		       void *raw_data, struct vfsmount *mnt)
+		       void *raw_data)
 {
-	return get_sb_nodev(fs_type, flags, raw_data, fuse_fill_super, mnt);
+	return mount_nodev(fs_type, flags, raw_data, fuse_fill_super);
 }
 
 static void fuse_kill_sb_anon(struct super_block *sb)
@@ -1065,17 +1065,16 @@ static struct file_system_type fuse_fs_type = {
 	.owner		= THIS_MODULE,
 	.name		= "fuse",
 	.fs_flags	= FS_HAS_SUBTYPE,
-	.get_sb		= fuse_get_sb,
+	.mount		= fuse_mount,
 	.kill_sb	= fuse_kill_sb_anon,
 };
 
 #ifdef CONFIG_BLOCK
-static int fuse_get_sb_blk(struct file_system_type *fs_type,
+static struct dentry *fuse_mount_blk(struct file_system_type *fs_type,
 			   int flags, const char *dev_name,
-			   void *raw_data, struct vfsmount *mnt)
+			   void *raw_data)
 {
-	return get_sb_bdev(fs_type, flags, dev_name, raw_data, fuse_fill_super,
+	return mount_bdev(fs_type, flags, dev_name, raw_data, fuse_fill_super);
-			   mnt);
 }
 
 static void fuse_kill_sb_blk(struct super_block *sb)
@@ -1094,7 +1093,7 @@ static void fuse_kill_sb_blk(struct super_block *sb)
 static struct file_system_type fuseblk_fs_type = {
 	.owner		= THIS_MODULE,
 	.name		= "fuseblk",
-	.get_sb		= fuse_get_sb_blk,
+	.mount		= fuse_mount_blk,
 	.kill_sb	= fuse_kill_sb_blk,
 	.fs_flags	= FS_REQUIRES_DEV | FS_HAS_SUBTYPE,
 };

fs/gfs2/ops_fstype.c

@@ -1250,12 +1250,11 @@ static int test_gfs2_super(struct super_block *s, void *ptr)
 }
 
 /**
- * gfs2_get_sb - Get the GFS2 superblock
+ * gfs2_mount - Get the GFS2 superblock
  * @fs_type: The GFS2 filesystem type
  * @flags: Mount flags
  * @dev_name: The name of the device
  * @data: The mount arguments
- * @mnt: The vfsmnt for this mount
  *
  * Q. Why not use get_sb_bdev() ?
  * A. We need to select one of two root directories to mount, independent
@@ -1264,8 +1263,8 @@ static int test_gfs2_super(struct super_block *s, void *ptr)
  * Returns: 0 or -ve on error
  */
 
-static int gfs2_get_sb(struct file_system_type *fs_type, int flags,
+static struct dentry *gfs2_mount(struct file_system_type *fs_type, int flags,
-		       const char *dev_name, void *data, struct vfsmount *mnt)
+		       const char *dev_name, void *data)
 {
 	struct block_device *bdev;
 	struct super_block *s;
@@ -1279,7 +1278,7 @@ static int gfs2_get_sb(struct file_system_type *fs_type, int flags,
 
 	bdev = open_bdev_exclusive(dev_name, mode, fs_type);
 	if (IS_ERR(bdev))
-		return PTR_ERR(bdev);
+		return ERR_CAST(bdev);
 
 	/*
 	 * once the super is inserted into the list by sget, s_umount
@@ -1298,6 +1297,9 @@ static int gfs2_get_sb(struct file_system_type *fs_type, int flags,
 	if (IS_ERR(s))
 		goto error_bdev;
 
+	if (s->s_root)
+		close_bdev_exclusive(bdev, mode);
+
 	memset(&args, 0, sizeof(args));
 	args.ar_quota = GFS2_QUOTA_DEFAULT;
 	args.ar_data = GFS2_DATA_DEFAULT;
@@ -1309,17 +1311,13 @@ static int gfs2_get_sb(struct file_system_type *fs_type, int flags,
 	error = gfs2_mount_args(&args, data);
 	if (error) {
 		printk(KERN_WARNING "GFS2: can't parse mount arguments\n");
-		if (s->s_root)
 		goto error_super;
-		deactivate_locked_super(s);
-		return error;
 	}
 
 	if (s->s_root) {
 		error = -EBUSY;
 		if ((flags ^ s->s_flags) & MS_RDONLY)
 			goto error_super;
-		close_bdev_exclusive(bdev, mode);
 	} else {
 		char b[BDEVNAME_SIZE];
 
@@ -1328,27 +1326,24 @@ static int gfs2_get_sb(struct file_system_type *fs_type, int flags,
 		strlcpy(s->s_id, bdevname(bdev, b), sizeof(s->s_id));
 		sb_set_blocksize(s, block_size(bdev));
 		error = fill_super(s, &args, flags & MS_SILENT ? 1 : 0);
-		if (error) {
+		if (error)
-			deactivate_locked_super(s);
+			goto error_super;
-			return error;
-		}
 		s->s_flags |= MS_ACTIVE;
 		bdev->bd_super = s;
 	}
 
 	sdp = s->s_fs_info;
-	mnt->mnt_sb = s;
 	if (args.ar_meta)
-		mnt->mnt_root = dget(sdp->sd_master_dir);
+		return dget(sdp->sd_master_dir);
 	else
-		mnt->mnt_root = dget(sdp->sd_root_dir);
+		return dget(sdp->sd_root_dir);
-	return 0;
 
 error_super:
 	deactivate_locked_super(s);
+	return ERR_PTR(error);
 error_bdev:
 	close_bdev_exclusive(bdev, mode);
-	return error;
+	return ERR_PTR(error);
 }
 
 static int set_meta_super(struct super_block *s, void *ptr)
@@ -1356,8 +1351,8 @@ static int set_meta_super(struct super_block *s, void *ptr)
 	return -EINVAL;
 }
 
-static int gfs2_get_sb_meta(struct file_system_type *fs_type, int flags,
+static struct dentry *gfs2_mount_meta(struct file_system_type *fs_type,
-			    const char *dev_name, void *data, struct vfsmount *mnt)
+			int flags, const char *dev_name, void *data)
 {
 	struct super_block *s;
 	struct gfs2_sbd *sdp;
@@ -1368,23 +1363,21 @@ static int gfs2_get_sb_meta(struct file_system_type *fs_type, int flags,
 	if (error) {
 		printk(KERN_WARNING "GFS2: path_lookup on %s returned error %d\n",
 		       dev_name, error);
-		return error;
+		return ERR_PTR(error);
 	}
 	s = sget(&gfs2_fs_type, test_gfs2_super, set_meta_super,
 		 path.dentry->d_inode->i_sb->s_bdev);
 	path_put(&path);
 	if (IS_ERR(s)) {
 		printk(KERN_WARNING "GFS2: gfs2 mount does not exist\n");
-		return PTR_ERR(s);
+		return ERR_CAST(s);
 	}
 	if ((flags ^ s->s_flags) & MS_RDONLY) {
 		deactivate_locked_super(s);
-		return -EBUSY;
+		return ERR_PTR(-EBUSY);
 	}
 	sdp = s->s_fs_info;
-	mnt->mnt_sb = s;
+	return dget(sdp->sd_master_dir);
-	mnt->mnt_root = dget(sdp->sd_master_dir);
-	return 0;
 }
 
 static void gfs2_kill_sb(struct super_block *sb)
@@ -1410,7 +1403,7 @@ static void gfs2_kill_sb(struct super_block *sb)
 struct file_system_type gfs2_fs_type = {
 	.name = "gfs2",
 	.fs_flags = FS_REQUIRES_DEV,
-	.get_sb = gfs2_get_sb,
+	.mount = gfs2_mount,
 	.kill_sb = gfs2_kill_sb,
 	.owner = THIS_MODULE,
 };
@@ -1418,7 +1411,7 @@ struct file_system_type gfs2_fs_type = {
 struct file_system_type gfs2meta_fs_type = {
 	.name = "gfs2meta",
 	.fs_flags = FS_REQUIRES_DEV,
-	.get_sb = gfs2_get_sb_meta,
+	.mount = gfs2_mount_meta,
 	.owner = THIS_MODULE,
 };
 

fs/hfs/super.c

@@ -441,17 +441,16 @@ bail:
 	return res;
 }
 
-static int hfs_get_sb(struct file_system_type *fs_type,
+static struct dentry *hfs_mount(struct file_system_type *fs_type,
-		      int flags, const char *dev_name, void *data,
+		      int flags, const char *dev_name, void *data)
-		      struct vfsmount *mnt)
 {
-	return get_sb_bdev(fs_type, flags, dev_name, data, hfs_fill_super, mnt);
+	return mount_bdev(fs_type, flags, dev_name, data, hfs_fill_super);
 }
 
 static struct file_system_type hfs_fs_type = {
 	.owner		= THIS_MODULE,
 	.name		= "hfs",
-	.get_sb		= hfs_get_sb,
+	.mount		= hfs_mount,
 	.kill_sb	= kill_block_super,
 	.fs_flags	= FS_REQUIRES_DEV,
 };

fs/hfsplus/super.c

@@ -495,18 +495,16 @@ static void hfsplus_destroy_inode(struct inode *inode)
 
 #define HFSPLUS_INODE_SIZE	sizeof(struct hfsplus_inode_info)
 
-static int hfsplus_get_sb(struct file_system_type *fs_type,
+static struct dentry *hfsplus_mount(struct file_system_type *fs_type,
-			  int flags, const char *dev_name, void *data,
+			  int flags, const char *dev_name, void *data)
-			  struct vfsmount *mnt)
 {
-	return get_sb_bdev(fs_type, flags, dev_name, data, hfsplus_fill_super,
+	return mount_bdev(fs_type, flags, dev_name, data, hfsplus_fill_super);
-			   mnt);
 }
 
 static struct file_system_type hfsplus_fs_type = {
 	.owner		= THIS_MODULE,
 	.name		= "hfsplus",
-	.get_sb		= hfsplus_get_sb,
+	.mount		= hfsplus_mount,
 	.kill_sb	= kill_block_super,
 	.fs_flags	= FS_REQUIRES_DEV,
 };

fs/hostfs/hostfs_kern.c

@@ -962,11 +962,11 @@ out:
 	return err;
 }
 
-static int hostfs_read_sb(struct file_system_type *type,
+static struct dentry *hostfs_read_sb(struct file_system_type *type,
 			  int flags, const char *dev_name,
-			  void *data, struct vfsmount *mnt)
+			  void *data)
 {
-	return get_sb_nodev(type, flags, data, hostfs_fill_sb_common, mnt);
+	return mount_nodev(type, flags, data, hostfs_fill_sb_common);
 }
 
 static void hostfs_kill_sb(struct super_block *s)
@@ -978,7 +978,7 @@ static void hostfs_kill_sb(struct super_block *s)
 static struct file_system_type hostfs_type = {
 	.owner 		= THIS_MODULE,
 	.name 		= "hostfs",
-	.get_sb 	= hostfs_read_sb,
+	.mount	 	= hostfs_read_sb,
 	.kill_sb	= hostfs_kill_sb,
 	.fs_flags 	= 0,
 };

fs/hpfs/super.c

@@ -686,17 +686,16 @@ bail0:
 	return -EINVAL;
 }
 
-static int hpfs_get_sb(struct file_system_type *fs_type,
+static struct dentry *hpfs_mount(struct file_system_type *fs_type,
-	int flags, const char *dev_name, void *data, struct vfsmount *mnt)
+	int flags, const char *dev_name, void *data)
 {
-	return get_sb_bdev(fs_type, flags, dev_name, data, hpfs_fill_super,
+	return mount_bdev(fs_type, flags, dev_name, data, hpfs_fill_super);
-			   mnt);
 }
 
 static struct file_system_type hpfs_fs_type = {
 	.owner		= THIS_MODULE,
 	.name		= "hpfs",
-	.get_sb		= hpfs_get_sb,
+	.mount		= hpfs_mount,
 	.kill_sb	= kill_block_super,
 	.fs_flags	= FS_REQUIRES_DEV,
 };

fs/hppfs/hppfs.c

@@ -748,17 +748,17 @@ static int hppfs_fill_super(struct super_block *sb, void *d, int silent)
 	return(err);
 }
 
-static int hppfs_read_super(struct file_system_type *type,
+static struct dentry *hppfs_read_super(struct file_system_type *type,
 			    int flags, const char *dev_name,
-			    void *data, struct vfsmount *mnt)
+			    void *data)
 {
-	return get_sb_nodev(type, flags, data, hppfs_fill_super, mnt);
+	return mount_nodev(type, flags, data, hppfs_fill_super);
 }
 
 static struct file_system_type hppfs_type = {
 	.owner 		= THIS_MODULE,
 	.name 		= "hppfs",
-	.get_sb 	= hppfs_read_super,
+	.mount 		= hppfs_read_super,
 	.kill_sb	= kill_anon_super,
 	.fs_flags 	= 0,
 };

fs/hugetlbfs/inode.c

@@ -896,15 +896,15 @@ void hugetlb_put_quota(struct address_space *mapping, long delta)
 	}
 }
 
-static int hugetlbfs_get_sb(struct file_system_type *fs_type,
+static struct dentry *hugetlbfs_mount(struct file_system_type *fs_type,
-	int flags, const char *dev_name, void *data, struct vfsmount *mnt)
+	int flags, const char *dev_name, void *data)
 {
-	return get_sb_nodev(fs_type, flags, data, hugetlbfs_fill_super, mnt);
+	return mount_nodev(fs_type, flags, data, hugetlbfs_fill_super);
 }
 
 static struct file_system_type hugetlbfs_fs_type = {
 	.name		= "hugetlbfs",
-	.get_sb		= hugetlbfs_get_sb,
+	.mount		= hugetlbfs_mount,
 	.kill_sb	= kill_litter_super,
 };
 

fs/internal.h

@@ -106,5 +106,5 @@ extern void release_open_intent(struct nameidata *);
  * inode.c
  */
 extern int get_nr_dirty_inodes(void);
-extern int evict_inodes(struct super_block *);
+extern void evict_inodes(struct super_block *);
 extern int invalidate_inodes(struct super_block *);

fs/isofs/inode.c

@@ -1507,17 +1507,16 @@ struct inode *isofs_iget(struct super_block *sb,
 	return inode;
 }
 
-static int isofs_get_sb(struct file_system_type *fs_type,
+static struct dentry *isofs_mount(struct file_system_type *fs_type,
-	int flags, const char *dev_name, void *data, struct vfsmount *mnt)
+	int flags, const char *dev_name, void *data)
 {
-	return get_sb_bdev(fs_type, flags, dev_name, data, isofs_fill_super,
+	return mount_bdev(fs_type, flags, dev_name, data, isofs_fill_super);
-				mnt);
 }
 
 static struct file_system_type iso9660_fs_type = {
 	.owner		= THIS_MODULE,
 	.name		= "iso9660",
-	.get_sb		= isofs_get_sb,
+	.mount		= isofs_mount,
 	.kill_sb	= kill_block_super,
 	.fs_flags	= FS_REQUIRES_DEV,
 };

fs/jffs2/super.c

@@ -179,12 +179,11 @@ static int jffs2_fill_super(struct super_block *sb, void *data, int silent)
 	return ret;
 }
 
-static int jffs2_get_sb(struct file_system_type *fs_type,
+static struct dentry *jffs2_mount(struct file_system_type *fs_type,
 			int flags, const char *dev_name,
-			void *data, struct vfsmount *mnt)
+			void *data)
 {
-	return get_sb_mtd(fs_type, flags, dev_name, data, jffs2_fill_super,
+	return mount_mtd(fs_type, flags, dev_name, data, jffs2_fill_super);
-			  mnt);
 }
 
 static void jffs2_put_super (struct super_block *sb)
@@ -229,7 +228,7 @@ static void jffs2_kill_sb(struct super_block *sb)
 static struct file_system_type jffs2_fs_type = {
 	.owner =	THIS_MODULE,
 	.name =		"jffs2",
-	.get_sb =	jffs2_get_sb,
+	.mount =	jffs2_mount,
 	.kill_sb =	jffs2_kill_sb,
 };
 

fs/jfs/super.c

@@ -583,11 +583,10 @@ static int jfs_unfreeze(struct super_block *sb)
 	return 0;
 }
 
-static int jfs_get_sb(struct file_system_type *fs_type,
+static struct dentry *jfs_do_mount(struct file_system_type *fs_type,
-	int flags, const char *dev_name, void *data, struct vfsmount *mnt)
+	int flags, const char *dev_name, void *data)
 {
-	return get_sb_bdev(fs_type, flags, dev_name, data, jfs_fill_super,
+	return mount_bdev(fs_type, flags, dev_name, data, jfs_fill_super);
-			   mnt);
 }
 
 static int jfs_sync_fs(struct super_block *sb, int wait)
@@ -770,7 +769,7 @@ static const struct export_operations jfs_export_operations = {
 static struct file_system_type jfs_fs_type = {
 	.owner		= THIS_MODULE,
 	.name		= "jfs",
-	.get_sb		= jfs_get_sb,
+	.mount		= jfs_do_mount,
 	.kill_sb	= kill_block_super,
 	.fs_flags	= FS_REQUIRES_DEV,
 };

fs/libfs.c

@@ -201,9 +201,8 @@ static const struct super_operations simple_super_operations = {
  * Common helper for pseudo-filesystems (sockfs, pipefs, bdev - stuff that
  * will never be mountable)
  */
-int get_sb_pseudo(struct file_system_type *fs_type, char *name,
+struct dentry *mount_pseudo(struct file_system_type *fs_type, char *name,
-	const struct super_operations *ops, unsigned long magic,
+	const struct super_operations *ops, unsigned long magic)
-	struct vfsmount *mnt)
 {
 	struct super_block *s = sget(fs_type, NULL, set_anon_super, NULL);
 	struct dentry *dentry;
@@ -211,7 +210,7 @@ int get_sb_pseudo(struct file_system_type *fs_type, char *name,
 	struct qstr d_name = {.name = name, .len = strlen(name)};
 
 	if (IS_ERR(s))
-		return PTR_ERR(s);
+		return ERR_CAST(s);
 
 	s->s_flags = MS_NOUSER;
 	s->s_maxbytes = MAX_LFS_FILESIZE;
@@ -241,12 +240,11 @@ int get_sb_pseudo(struct file_system_type *fs_type, char *name,
 	d_instantiate(dentry, root);
 	s->s_root = dentry;
 	s->s_flags |= MS_ACTIVE;
-	simple_set_mnt(mnt, s);
+	return dget(s->s_root);
-	return 0;
 
 Enomem:
 	deactivate_locked_super(s);
-	return -ENOMEM;
+	return ERR_PTR(-ENOMEM);
 }
 
 int simple_link(struct dentry *old_dentry, struct inode *dir, struct dentry *dentry)
@@ -951,7 +949,7 @@ EXPORT_SYMBOL(dcache_dir_lseek);
 EXPORT_SYMBOL(dcache_dir_open);
 EXPORT_SYMBOL(dcache_readdir);
 EXPORT_SYMBOL(generic_read_dir);
-EXPORT_SYMBOL(get_sb_pseudo);
+EXPORT_SYMBOL(mount_pseudo);
 EXPORT_SYMBOL(simple_write_begin);
 EXPORT_SYMBOL(simple_write_end);
 EXPORT_SYMBOL(simple_dir_inode_operations);

fs/logfs/dev_bdev.c

@@ -298,9 +298,9 @@ static int bdev_write_sb(struct super_block *sb, struct page *page)
 	return sync_request(page, bdev, WRITE);
 }
 
-static void bdev_put_device(struct super_block *sb)
+static void bdev_put_device(struct logfs_super *s)
 {
-	close_bdev_exclusive(logfs_super(sb)->s_bdev, FMODE_READ|FMODE_WRITE);
+	close_bdev_exclusive(s->s_bdev, FMODE_READ|FMODE_WRITE);
 }
 
 static int bdev_can_write_buf(struct super_block *sb, u64 ofs)
@@ -320,8 +320,8 @@ static const struct logfs_device_ops bd_devops = {
 	.put_device	= bdev_put_device,
 };
 
-int logfs_get_sb_bdev(struct file_system_type *type, int flags,
+int logfs_get_sb_bdev(struct logfs_super *p, struct file_system_type *type,
-		const char *devname, struct vfsmount *mnt)
+		const char *devname)
 {
 	struct block_device *bdev;
 
@@ -332,8 +332,11 @@ int logfs_get_sb_bdev(struct file_system_type *type, int flags,
 	if (MAJOR(bdev->bd_dev) == MTD_BLOCK_MAJOR) {
 		int mtdnr = MINOR(bdev->bd_dev);
 		close_bdev_exclusive(bdev, FMODE_READ|FMODE_WRITE);
-		return logfs_get_sb_mtd(type, flags, mtdnr, mnt);
+		return logfs_get_sb_mtd(p, mtdnr);
 	}
 
-	return logfs_get_sb_device(type, flags, NULL, bdev, &bd_devops, mnt);
+	p->s_bdev = bdev;
+	p->s_mtd = NULL;
+	p->s_devops = &bd_devops;
+	return 0;
 }

fs/logfs/dev_mtd.c

@@ -230,9 +230,9 @@ static void mtd_writeseg(struct super_block *sb, u64 ofs, size_t len)
 	__mtd_writeseg(sb, ofs, ofs >> PAGE_SHIFT, len >> PAGE_SHIFT);
 }
 
-static void mtd_put_device(struct super_block *sb)
+static void mtd_put_device(struct logfs_super *s)
 {
-	put_mtd_device(logfs_super(sb)->s_mtd);
+	put_mtd_device(s->s_mtd);
 }
 
 static int mtd_can_write_buf(struct super_block *sb, u64 ofs)
@@ -265,14 +265,14 @@ static const struct logfs_device_ops mtd_devops = {
 	.put_device	= mtd_put_device,
 };
 
-int logfs_get_sb_mtd(struct file_system_type *type, int flags,
+int logfs_get_sb_mtd(struct logfs_super *s, int mtdnr)
-		int mtdnr, struct vfsmount *mnt)
 {
-	struct mtd_info *mtd;
+	struct mtd_info *mtd = get_mtd_device(NULL, mtdnr);
-	const struct logfs_device_ops *devops = &mtd_devops;
-
-	mtd = get_mtd_device(NULL, mtdnr);
 	if (IS_ERR(mtd))
 		return PTR_ERR(mtd);
-	return logfs_get_sb_device(type, flags, mtd, NULL, devops, mnt);
+
+	s->s_bdev = NULL;
+	s->s_mtd = mtd;
+	s->s_devops = &mtd_devops;
+	return 0;
 }

fs/logfs/logfs.h

@@ -136,6 +136,7 @@ struct logfs_area_ops {
 	int	(*erase_segment)(struct logfs_area *area);
 };
 
+struct logfs_super;	/* forward */
 /**
  * struct logfs_device_ops - device access operations
  *
@@ -156,7 +157,7 @@ struct logfs_device_ops {
 			int ensure_write);
 	int (*can_write_buf)(struct super_block *sb, u64 ofs);
 	void (*sync)(struct super_block *sb);
-	void (*put_device)(struct super_block *sb);
+	void (*put_device)(struct logfs_super *s);
 };
 
 /**
@@ -471,11 +472,13 @@ void logfs_compr_exit(void);
 
 /* dev_bdev.c */
 #ifdef CONFIG_BLOCK
-int logfs_get_sb_bdev(struct file_system_type *type, int flags,
+int logfs_get_sb_bdev(struct logfs_super *s,
-		const char *devname, struct vfsmount *mnt);
+		struct file_system_type *type,
+		const char *devname);
 #else
-static inline int logfs_get_sb_bdev(struct file_system_type *type, int flags,
+static inline int logfs_get_sb_bdev(struct logfs_super *s,
-		const char *devname, struct vfsmount *mnt)
+		struct file_system_type *type,
+		const char *devname)
 {
 	return -ENODEV;
 }
@@ -483,11 +486,9 @@ static inline int logfs_get_sb_bdev(struct file_system_type *type, int flags,
 
 /* dev_mtd.c */
 #ifdef CONFIG_MTD
-int logfs_get_sb_mtd(struct file_system_type *type, int flags,
+int logfs_get_sb_mtd(struct logfs_super *s, int mtdnr)
-		int mtdnr, struct vfsmount *mnt);
 #else
-static inline int logfs_get_sb_mtd(struct file_system_type *type, int flags,
+static inline int logfs_get_sb_mtd(struct logfs_super *s, int mtdnr)
-		int mtdnr, struct vfsmount *mnt)
 {
 	return -ENODEV;
 }
@@ -619,9 +620,6 @@ void emergency_read_end(struct page *page);
 void logfs_crash_dump(struct super_block *sb);
 void *memchr_inv(const void *s, int c, size_t n);
 int logfs_statfs(struct dentry *dentry, struct kstatfs *stats);
-int logfs_get_sb_device(struct file_system_type *type, int flags,
-		struct mtd_info *mtd, struct block_device *bdev,
-		const struct logfs_device_ops *devops, struct vfsmount *mnt);
 int logfs_check_ds(struct logfs_disk_super *ds);
 int logfs_write_sb(struct super_block *sb);
 

fs/logfs/super.c

@@ -325,7 +325,7 @@ static int logfs_make_writeable(struct super_block *sb)
 	return 0;
 }
 
-static int logfs_get_sb_final(struct super_block *sb, struct vfsmount *mnt)
+static int logfs_get_sb_final(struct super_block *sb)
 {
 	struct logfs_super *super = logfs_super(sb);
 	struct inode *rootdir;
@@ -356,7 +356,6 @@ static int logfs_get_sb_final(struct super_block *sb, struct vfsmount *mnt)
 	}
 
 	log_super("LogFS: Finished mounting\n");
-	simple_set_mnt(mnt, sb);
 	return 0;
 
 fail:
@@ -529,43 +528,37 @@ static void logfs_kill_sb(struct super_block *sb)
 	logfs_cleanup_rw(sb);
 	if (super->s_erase_page)
 		__free_page(super->s_erase_page);
-	super->s_devops->put_device(sb);
+	super->s_devops->put_device(super);
 	logfs_mempool_destroy(super->s_btree_pool);
 	logfs_mempool_destroy(super->s_alias_pool);
 	kfree(super);
 	log_super("LogFS: Finished unmounting\n");
 }
 
-int logfs_get_sb_device(struct file_system_type *type, int flags,
+static struct dentry *logfs_get_sb_device(struct logfs_super *super,
-		struct mtd_info *mtd, struct block_device *bdev,
+		struct file_system_type *type, int flags)
-		const struct logfs_device_ops *devops, struct vfsmount *mnt)
 {
-	struct logfs_super *super;
 	struct super_block *sb;
 	int err = -ENOMEM;
 	static int mount_count;
 
 	log_super("LogFS: Start mount %x\n", mount_count++);
-	super = kzalloc(sizeof(*super), GFP_KERNEL);
-	if (!super)
-		goto err0;
 
-	super->s_mtd	= mtd;
-	super->s_bdev	= bdev;
 	err = -EINVAL;
 	sb = sget(type, logfs_sb_test, logfs_sb_set, super);
-	if (IS_ERR(sb))
+	if (IS_ERR(sb)) {
-		goto err0;
+		super->s_devops->put_device(super);
+		kfree(super);
+		return ERR_CAST(sb);
+	}
 
 	if (sb->s_root) {
 		/* Device is already in use */
-		err = 0;
+		super->s_devops->put_device(super);
-		simple_set_mnt(mnt, sb);
+		kfree(super);
-		goto err0;
+		return dget(sb->s_root);
 	}
 
-	super->s_devops = devops;
-
 	/*
 	 * sb->s_maxbytes is limited to 8TB.  On 32bit systems, the page cache
 	 * only covers 16TB and the upper 8TB are used for indirect blocks.
@@ -581,10 +574,12 @@ int logfs_get_sb_device(struct file_system_type *type, int flags,
 		goto err1;
 
 	sb->s_flags |= MS_ACTIVE;
-	err = logfs_get_sb_final(sb, mnt);
+	err = logfs_get_sb_final(sb);
-	if (err)
+	if (err) {
 		deactivate_locked_super(sb);
-	return err;
+		return ERR_PTR(err);
+	}
+	return dget(sb->s_root);
 
 err1:
 	/* no ->s_root, no ->put_super() */
@@ -592,37 +587,45 @@ err1:
 	iput(super->s_segfile_inode);
 	iput(super->s_mapping_inode);
 	deactivate_locked_super(sb);
-	return err;
+	return ERR_PTR(err);
-err0:
-	kfree(super);
-	//devops->put_device(sb);
-	return err;
 }
 
-static int logfs_get_sb(struct file_system_type *type, int flags,
+static struct dentry *logfs_mount(struct file_system_type *type, int flags,
-		const char *devname, void *data, struct vfsmount *mnt)
+		const char *devname, void *data)
 {
 	ulong mtdnr;
+	struct logfs_super *super;
+	int err;
+
+	super = kzalloc(sizeof(*super), GFP_KERNEL);
+	if (!super)
+		return ERR_PTR(-ENOMEM);
 
 	if (!devname)
-		return logfs_get_sb_bdev(type, flags, devname, mnt);
+		err = logfs_get_sb_bdev(super, type, devname);
-	if (strncmp(devname, "mtd", 3))
+	else if (strncmp(devname, "mtd", 3))
-		return logfs_get_sb_bdev(type, flags, devname, mnt);
+		err = logfs_get_sb_bdev(super, type, devname);
-
+	else {
-	{
 		char *garbage;
 		mtdnr = simple_strtoul(devname+3, &garbage, 0);
 		if (*garbage)
-			return -EINVAL;
+			err = -EINVAL;
+		else
+			err = logfs_get_sb_mtd(super, mtdnr);
 	}
 
-	return logfs_get_sb_mtd(type, flags, mtdnr, mnt);
+	if (err) {
+		kfree(super);
+		return ERR_PTR(err);
+	}
+
+	return logfs_get_sb_device(super, type, flags);
 }
 
 static struct file_system_type logfs_fs_type = {
 	.owner		= THIS_MODULE,
 	.name		= "logfs",
-	.get_sb		= logfs_get_sb,
+	.mount		= logfs_mount,
 	.kill_sb	= logfs_kill_sb,
 	.fs_flags	= FS_REQUIRES_DEV,
 

fs/minix/inode.c

@@ -614,17 +614,16 @@ void minix_truncate(struct inode * inode)
 		V2_minix_truncate(inode);
 }
 
-static int minix_get_sb(struct file_system_type *fs_type,
+static struct dentry *minix_mount(struct file_system_type *fs_type,
-	int flags, const char *dev_name, void *data, struct vfsmount *mnt)
+	int flags, const char *dev_name, void *data)
 {
-	return get_sb_bdev(fs_type, flags, dev_name, data, minix_fill_super,
+	return mount_bdev(fs_type, flags, dev_name, data, minix_fill_super);
-			   mnt);
 }
 
 static struct file_system_type minix_fs_type = {
 	.owner		= THIS_MODULE,
 	.name		= "minix",
-	.get_sb		= minix_get_sb,
+	.mount		= minix_mount,
 	.kill_sb	= kill_block_super,
 	.fs_flags	= FS_REQUIRES_DEV,
 };

fs/namei.c

@@ -1574,6 +1574,7 @@ static struct file *finish_open(struct nameidata *nd,
 	 */
 	if (will_truncate)
 		mnt_drop_write(nd->path.mnt);
+	path_put(&nd->path);
 	return filp;
 
 exit:
@@ -1675,6 +1676,7 @@ static struct file *do_last(struct nameidata *nd, struct path *path,
 		}
 		filp = nameidata_to_filp(nd);
 		mnt_drop_write(nd->path.mnt);
+		path_put(&nd->path);
 		if (!IS_ERR(filp)) {
 			error = ima_file_check(filp, acc_mode);
 			if (error) {

fs/ncpfs/inode.c

@@ -1020,16 +1020,16 @@ out:
 	return result;
 }
 
-static int ncp_get_sb(struct file_system_type *fs_type,
+static struct dentry *ncp_mount(struct file_system_type *fs_type,
-	int flags, const char *dev_name, void *data, struct vfsmount *mnt)
+	int flags, const char *dev_name, void *data)
 {
-	return get_sb_nodev(fs_type, flags, data, ncp_fill_super, mnt);
+	return mount_nodev(fs_type, flags, data, ncp_fill_super);
 }
 
 static struct file_system_type ncp_fs_type = {
 	.owner		= THIS_MODULE,
 	.name		= "ncpfs",
-	.get_sb		= ncp_get_sb,
+	.mount		= ncp_mount,
 	.kill_sb	= kill_anon_super,
 	.fs_flags	= FS_BINARY_MOUNTDATA,
 };

fs/nfs/super.c

@@ -260,8 +260,8 @@ static int  nfs_statfs(struct dentry *, struct kstatfs *);
 static int  nfs_show_options(struct seq_file *, struct vfsmount *);
 static int  nfs_show_stats(struct seq_file *, struct vfsmount *);
 static int nfs_get_sb(struct file_system_type *, int, const char *, void *, struct vfsmount *);
-static int nfs_xdev_get_sb(struct file_system_type *fs_type,
+static struct dentry *nfs_xdev_mount(struct file_system_type *fs_type,
-		int flags, const char *dev_name, void *raw_data, struct vfsmount *mnt);
+		int flags, const char *dev_name, void *raw_data);
 static void nfs_put_super(struct super_block *);
 static void nfs_kill_super(struct super_block *);
 static int nfs_remount(struct super_block *sb, int *flags, char *raw_data);
@@ -277,7 +277,7 @@ static struct file_system_type nfs_fs_type = {
 struct file_system_type nfs_xdev_fs_type = {
 	.owner		= THIS_MODULE,
 	.name		= "nfs",
-	.get_sb		= nfs_xdev_get_sb,
+	.mount		= nfs_xdev_mount,
 	.kill_sb	= nfs_kill_super,
 	.fs_flags	= FS_RENAME_DOES_D_MOVE|FS_REVAL_DOT|FS_BINARY_MOUNTDATA,
 };
@@ -302,14 +302,14 @@ static int nfs4_try_mount(int flags, const char *dev_name,
 	struct nfs_parsed_mount_data *data, struct vfsmount *mnt);
 static int nfs4_get_sb(struct file_system_type *fs_type,
 	int flags, const char *dev_name, void *raw_data, struct vfsmount *mnt);
-static int nfs4_remote_get_sb(struct file_system_type *fs_type,
+static struct dentry *nfs4_remote_mount(struct file_system_type *fs_type,
-	int flags, const char *dev_name, void *raw_data, struct vfsmount *mnt);
+	int flags, const char *dev_name, void *raw_data);
-static int nfs4_xdev_get_sb(struct file_system_type *fs_type,
+static struct dentry *nfs4_xdev_mount(struct file_system_type *fs_type,
-	int flags, const char *dev_name, void *raw_data, struct vfsmount *mnt);
+	int flags, const char *dev_name, void *raw_data);
 static int nfs4_referral_get_sb(struct file_system_type *fs_type,
 	int flags, const char *dev_name, void *raw_data, struct vfsmount *mnt);
-static int nfs4_remote_referral_get_sb(struct file_system_type *fs_type,
+static struct dentry *nfs4_remote_referral_mount(struct file_system_type *fs_type,
-	int flags, const char *dev_name, void *raw_data, struct vfsmount *mnt);
+	int flags, const char *dev_name, void *raw_data);
 static void nfs4_kill_super(struct super_block *sb);
 
 static struct file_system_type nfs4_fs_type = {
@@ -323,7 +323,7 @@ static struct file_system_type nfs4_fs_type = {
 static struct file_system_type nfs4_remote_fs_type = {
 	.owner		= THIS_MODULE,
 	.name		= "nfs4",
-	.get_sb		= nfs4_remote_get_sb,
+	.mount		= nfs4_remote_mount,
 	.kill_sb	= nfs4_kill_super,
 	.fs_flags	= FS_RENAME_DOES_D_MOVE|FS_REVAL_DOT|FS_BINARY_MOUNTDATA,
 };
@@ -331,7 +331,7 @@ static struct file_system_type nfs4_remote_fs_type = {
 struct file_system_type nfs4_xdev_fs_type = {
 	.owner		= THIS_MODULE,
 	.name		= "nfs4",
-	.get_sb		= nfs4_xdev_get_sb,
+	.mount		= nfs4_xdev_mount,
 	.kill_sb	= nfs4_kill_super,
 	.fs_flags	= FS_RENAME_DOES_D_MOVE|FS_REVAL_DOT|FS_BINARY_MOUNTDATA,
 };
@@ -339,7 +339,7 @@ struct file_system_type nfs4_xdev_fs_type = {
 static struct file_system_type nfs4_remote_referral_fs_type = {
 	.owner		= THIS_MODULE,
 	.name		= "nfs4",
-	.get_sb		= nfs4_remote_referral_get_sb,
+	.mount		= nfs4_remote_referral_mount,
 	.kill_sb	= nfs4_kill_super,
 	.fs_flags	= FS_RENAME_DOES_D_MOVE|FS_REVAL_DOT|FS_BINARY_MOUNTDATA,
 };
@@ -2397,9 +2397,9 @@ static void nfs_kill_super(struct super_block *s)
 /*
  * Clone an NFS2/3 server record on xdev traversal (FSID-change)
  */
-static int nfs_xdev_get_sb(struct file_system_type *fs_type, int flags,
+static struct dentry *
-			   const char *dev_name, void *raw_data,
+nfs_xdev_mount(struct file_system_type *fs_type, int flags,
-			   struct vfsmount *mnt)
+		const char *dev_name, void *raw_data)
 {
 	struct nfs_clone_mount *data = raw_data;
 	struct super_block *s;
@@ -2411,7 +2411,7 @@ static int nfs_xdev_get_sb(struct file_system_type *fs_type, int flags,
 	};
 	int error;
 
-	dprintk("--> nfs_xdev_get_sb()\n");
+	dprintk("--> nfs_xdev_mount()\n");
 
 	/* create a new volume representation */
 	server = nfs_clone_server(NFS_SB(data->sb), data->fh, data->fattr);
@@ -2458,28 +2458,26 @@ static int nfs_xdev_get_sb(struct file_system_type *fs_type, int flags,
 	}
 
 	s->s_flags |= MS_ACTIVE;
-	mnt->mnt_sb = s;
-	mnt->mnt_root = mntroot;
 
 	/* clone any lsm security options from the parent to the new sb */
 	security_sb_clone_mnt_opts(data->sb, s);
 
-	dprintk("<-- nfs_xdev_get_sb() = 0\n");
+	dprintk("<-- nfs_xdev_mount() = 0\n");
-	return 0;
+	return mntroot;
 
 out_err_nosb:
 	nfs_free_server(server);
 out_err_noserver:
-	dprintk("<-- nfs_xdev_get_sb() = %d [error]\n", error);
+	dprintk("<-- nfs_xdev_mount() = %d [error]\n", error);
-	return error;
+	return ERR_PTR(error);
 
 error_splat_super:
 	if (server && !s->s_root)
 		bdi_unregister(&server->backing_dev_info);
 error_splat_bdi:
 	deactivate_locked_super(s);
-	dprintk("<-- nfs_xdev_get_sb() = %d [splat]\n", error);
+	dprintk("<-- nfs_xdev_mount() = %d [splat]\n", error);
-	return error;
+	return ERR_PTR(error);
 }
 
 #ifdef CONFIG_NFS_V4
@@ -2649,8 +2647,9 @@ out_no_address:
 /*
  * Get the superblock for the NFS4 root partition
  */
-static int nfs4_remote_get_sb(struct file_system_type *fs_type,
+static struct dentry *
-	int flags, const char *dev_name, void *raw_data, struct vfsmount *mnt)
+nfs4_remote_mount(struct file_system_type *fs_type, int flags,
+		  const char *dev_name, void *raw_data)
 {
 	struct nfs_parsed_mount_data *data = raw_data;
 	struct super_block *s;
@@ -2714,15 +2713,16 @@ static int nfs4_remote_get_sb(struct file_system_type *fs_type,
 		goto error_splat_root;
 
 	s->s_flags |= MS_ACTIVE;
-	mnt->mnt_sb = s;
+
-	mnt->mnt_root = mntroot;
+	security_free_mnt_opts(&data->lsm_opts);
-	error = 0;
+	nfs_free_fhandle(mntfh);
+	return mntroot;
 
 out:
 	security_free_mnt_opts(&data->lsm_opts);
 out_free_fh:
 	nfs_free_fhandle(mntfh);
-	return error;
+	return ERR_PTR(error);
 
 out_free:
 	nfs_free_server(server);
@@ -2968,9 +2968,9 @@ static void nfs4_kill_super(struct super_block *sb)
 /*
  * Clone an NFS4 server record on xdev traversal (FSID-change)
  */
-static int nfs4_xdev_get_sb(struct file_system_type *fs_type, int flags,
+static struct dentry *
-			    const char *dev_name, void *raw_data,
+nfs4_xdev_mount(struct file_system_type *fs_type, int flags,
-			    struct vfsmount *mnt)
+		 const char *dev_name, void *raw_data)
 {
 	struct nfs_clone_mount *data = raw_data;
 	struct super_block *s;
@@ -2982,7 +2982,7 @@ static int nfs4_xdev_get_sb(struct file_system_type *fs_type, int flags,
 	};
 	int error;
 
-	dprintk("--> nfs4_xdev_get_sb()\n");
+	dprintk("--> nfs4_xdev_mount()\n");
 
 	/* create a new volume representation */
 	server = nfs_clone_server(NFS_SB(data->sb), data->fh, data->fattr);
@@ -3029,32 +3029,30 @@ static int nfs4_xdev_get_sb(struct file_system_type *fs_type, int flags,
 	}
 
 	s->s_flags |= MS_ACTIVE;
-	mnt->mnt_sb = s;
-	mnt->mnt_root = mntroot;
 
 	security_sb_clone_mnt_opts(data->sb, s);
 
-	dprintk("<-- nfs4_xdev_get_sb() = 0\n");
+	dprintk("<-- nfs4_xdev_mount() = 0\n");
-	return 0;
+	return mntroot;
 
 out_err_nosb:
 	nfs_free_server(server);
 out_err_noserver:
-	dprintk("<-- nfs4_xdev_get_sb() = %d [error]\n", error);
+	dprintk("<-- nfs4_xdev_mount() = %d [error]\n", error);
-	return error;
+	return ERR_PTR(error);
 
 error_splat_super:
 	if (server && !s->s_root)
 		bdi_unregister(&server->backing_dev_info);
 error_splat_bdi:
 	deactivate_locked_super(s);
-	dprintk("<-- nfs4_xdev_get_sb() = %d [splat]\n", error);
+	dprintk("<-- nfs4_xdev_mount() = %d [splat]\n", error);
-	return error;
+	return ERR_PTR(error);
 }
 
-static int nfs4_remote_referral_get_sb(struct file_system_type *fs_type,
+static struct dentry *
-		int flags, const char *dev_name, void *raw_data,
+nfs4_remote_referral_mount(struct file_system_type *fs_type, int flags,
-		struct vfsmount *mnt)
+			   const char *dev_name, void *raw_data)
 {
 	struct nfs_clone_mount *data = raw_data;
 	struct super_block *s;
@@ -3118,14 +3116,12 @@ static int nfs4_remote_referral_get_sb(struct file_system_type *fs_type,
 	}
 
 	s->s_flags |= MS_ACTIVE;
-	mnt->mnt_sb = s;
-	mnt->mnt_root = mntroot;
 
 	security_sb_clone_mnt_opts(data->sb, s);
 
 	nfs_free_fhandle(mntfh);
 	dprintk("<-- nfs4_referral_get_sb() = 0\n");
-	return 0;
+	return mntroot;
 
 out_err_nosb:
 	nfs_free_server(server);
@@ -3133,7 +3129,7 @@ out_err_noserver:
 	nfs_free_fhandle(mntfh);
 out_err_nofh:
 	dprintk("<-- nfs4_referral_get_sb() = %d [error]\n", error);
-	return error;
+	return ERR_PTR(error);
 
 error_splat_super:
 	if (server && !s->s_root)
@@ -3142,7 +3138,7 @@ error_splat_bdi:
 	deactivate_locked_super(s);
 	nfs_free_fhandle(mntfh);
 	dprintk("<-- nfs4_referral_get_sb() = %d [splat]\n", error);
-	return error;
+	return ERR_PTR(error);
 }
 
 /*

fs/nfs/unlink.c

@@ -444,9 +444,9 @@ nfs_async_rename(struct inode *old_dir, struct inode *new_dir,
 
 	/* set up nfs_renamedata */
 	data->old_dir = old_dir;
-	atomic_inc(&old_dir->i_count);
+	ihold(old_dir);
 	data->new_dir = new_dir;
-	atomic_inc(&new_dir->i_count);
+	ihold(new_dir);
 	data->old_dentry = dget(old_dentry);
 	data->new_dentry = dget(new_dentry);
 	nfs_fattr_init(&data->old_fattr);

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,
+static struct dentry *nfsd_mount(struct file_system_type *fs_type,
-	int flags, const char *dev_name, void *data, struct vfsmount *mnt)
+	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,
 };
 

fs/nilfs2/super.c

@@ -1141,9 +1141,9 @@ static int nilfs_test_bdev_super(struct super_block *s, void *data)
 	return (void *)s->s_bdev == data;
 }
 
-static int
+static struct dentry *
-nilfs_get_sb(struct file_system_type *fs_type, int flags,
+nilfs_mount(struct file_system_type *fs_type, int flags,
-	     const char *dev_name, void *data, struct vfsmount *mnt)
+	     const char *dev_name, void *data)
 {
 	struct nilfs_super_data sd;
 	struct super_block *s;
@@ -1156,7 +1156,7 @@ nilfs_get_sb(struct file_system_type *fs_type, int flags,
 
 	sd.bdev = open_bdev_exclusive(dev_name, mode, fs_type);
 	if (IS_ERR(sd.bdev))
-		return PTR_ERR(sd.bdev);
+		return ERR_CAST(sd.bdev);
 
 	sd.cno = 0;
 	sd.flags = flags;
@@ -1235,9 +1235,7 @@ nilfs_get_sb(struct file_system_type *fs_type, int flags,
 	if (!s_new)
 		close_bdev_exclusive(sd.bdev, mode);
 
-	mnt->mnt_sb = s;
+	return root_dentry;
-	mnt->mnt_root = root_dentry;
-	return 0;
 
  failed_super:
 	deactivate_locked_super(s);
@@ -1245,13 +1243,13 @@ nilfs_get_sb(struct file_system_type *fs_type, int flags,
  failed:
 	if (!s_new)
 		close_bdev_exclusive(sd.bdev, mode);
-	return err;
+	return ERR_PTR(err);
 }
 
 struct file_system_type nilfs_fs_type = {
 	.owner    = THIS_MODULE,
 	.name     = "nilfs2",
-	.get_sb   = nilfs_get_sb,
+	.mount    = nilfs_mount,
 	.kill_sb  = kill_block_super,
 	.fs_flags = FS_REQUIRES_DEV,
 };

fs/ntfs/super.c

@@ -3059,17 +3059,16 @@ struct kmem_cache *ntfs_index_ctx_cache;
 /* Driver wide mutex. */
 DEFINE_MUTEX(ntfs_lock);
 
-static int ntfs_get_sb(struct file_system_type *fs_type,
+static struct dentry *ntfs_mount(struct file_system_type *fs_type,
-	int flags, const char *dev_name, void *data, struct vfsmount *mnt)
+	int flags, const char *dev_name, void *data)
 {
-	return get_sb_bdev(fs_type, flags, dev_name, data, ntfs_fill_super,
+	return mount_bdev(fs_type, flags, dev_name, data, ntfs_fill_super);
-			   mnt);
 }
 
 static struct file_system_type ntfs_fs_type = {
 	.owner		= THIS_MODULE,
 	.name		= "ntfs",
-	.get_sb		= ntfs_get_sb,
+	.mount		= ntfs_mount,
 	.kill_sb	= kill_block_super,
 	.fs_flags	= FS_REQUIRES_DEV,
 };

fs/ocfs2/dlmfs/dlmfs.c

@@ -643,16 +643,16 @@ static const struct inode_operations dlmfs_file_inode_operations = {
 	.setattr	= dlmfs_file_setattr,
 };
 
-static int dlmfs_get_sb(struct file_system_type *fs_type,
+static struct dentry *dlmfs_mount(struct file_system_type *fs_type,
-	int flags, const char *dev_name, void *data, struct vfsmount *mnt)
+	int flags, const char *dev_name, void *data)
 {
-	return get_sb_nodev(fs_type, flags, data, dlmfs_fill_super, mnt);
+	return mount_nodev(fs_type, flags, data, dlmfs_fill_super);
 }
 
 static struct file_system_type dlmfs_fs_type = {
 	.owner		= THIS_MODULE,
 	.name		= "ocfs2_dlmfs",
-	.get_sb		= dlmfs_get_sb,
+	.mount		= dlmfs_mount,
 	.kill_sb	= kill_litter_super,
 };
 

fs/ocfs2/super.c

@@ -1236,14 +1236,12 @@ read_super_error:
 	return status;
 }
 
-static int ocfs2_get_sb(struct file_system_type *fs_type,
+static struct dentry *ocfs2_mount(struct file_system_type *fs_type,
 			int flags,
 			const char *dev_name,
-			void *data,
+			void *data)
-			struct vfsmount *mnt)
 {
-	return get_sb_bdev(fs_type, flags, dev_name, data, ocfs2_fill_super,
+	return mount_bdev(fs_type, flags, dev_name, data, ocfs2_fill_super);
-			   mnt);
 }
 
 static void ocfs2_kill_sb(struct super_block *sb)
@@ -1267,8 +1265,7 @@ out:
 static struct file_system_type ocfs2_fs_type = {
 	.owner          = THIS_MODULE,
 	.name           = "ocfs2",
-	.get_sb         = ocfs2_get_sb, /* is this called when we mount
+	.mount          = ocfs2_mount,
-					* the fs? */
 	.kill_sb        = ocfs2_kill_sb,
 
 	.fs_flags       = FS_REQUIRES_DEV|FS_RENAME_DOES_D_MOVE,

fs/omfs/inode.c

@@ -557,17 +557,16 @@ end:
 	return ret;
 }
 
-static int omfs_get_sb(struct file_system_type *fs_type,
+static struct dentry *omfs_mount(struct file_system_type *fs_type,
-			int flags, const char *dev_name,
+			int flags, const char *dev_name, void *data)
-			void *data, struct vfsmount *m)
 {
-	return get_sb_bdev(fs_type, flags, dev_name, data, omfs_fill_super, m);
+	return mount_bdev(fs_type, flags, dev_name, data, omfs_fill_super);
 }
 
 static struct file_system_type omfs_fs_type = {
 	.owner = THIS_MODULE,
 	.name = "omfs",
-	.get_sb = omfs_get_sb,
+	.mount = omfs_mount,
 	.kill_sb = kill_block_super,
 	.fs_flags = FS_REQUIRES_DEV,
 };

fs/open.c

@@ -786,11 +786,11 @@ struct file *nameidata_to_filp(struct nameidata *nd)
 	/* Pick up the filp from the open intent */
 	filp = nd->intent.open.file;
 	/* Has the filesystem initialised the file for us? */
-	if (filp->f_path.dentry == NULL)
+	if (filp->f_path.dentry == NULL) {
+		path_get(&nd->path);
 		filp = __dentry_open(nd->path.dentry, nd->path.mnt, filp,
 				     NULL, cred);
-	else
+	}
-		path_put(&nd->path);
 	return filp;
 }
 

fs/openpromfs/inode.c

@@ -415,16 +415,16 @@ out_no_root:
 	return ret;
 }
 
-static int openprom_get_sb(struct file_system_type *fs_type,
+static struct dentry *openprom_mount(struct file_system_type *fs_type,
-	int flags, const char *dev_name, void *data, struct vfsmount *mnt)
+	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,
 };
 

fs/pipe.c

@@ -1247,16 +1247,15 @@ out:
  * any operations on the root directory. However, we need a non-trivial
  * d_name - pipe: will go nicely and kill the special-casing in procfs.
  */
-static int pipefs_get_sb(struct file_system_type *fs_type,
+static struct dentry *pipefs_mount(struct file_system_type *fs_type,
-			 int flags, const char *dev_name, void *data,
+			 int flags, const char *dev_name, void *data)
-			 struct vfsmount *mnt)
 {
-	return get_sb_pseudo(fs_type, "pipe:", NULL, PIPEFS_MAGIC, mnt);
+	return mount_pseudo(fs_type, "pipe:", NULL, PIPEFS_MAGIC);
 }
 
 static struct file_system_type pipe_fs_type = {
 	.name		= "pipefs",
-	.get_sb		= pipefs_get_sb,
+	.mount		= pipefs_mount,
 	.kill_sb	= kill_anon_super,
 };
 

fs/proc/root.c

@@ -35,8 +35,8 @@ static int proc_set_super(struct super_block *sb, void *data)
 	return set_anon_super(sb, NULL);
 }
 
-static int proc_get_sb(struct file_system_type *fs_type,
+static struct dentry *proc_mount(struct file_system_type *fs_type,
-	int flags, const char *dev_name, void *data, struct vfsmount *mnt)
+	int flags, const char *dev_name, void *data)
 {
 	int err;
 	struct super_block *sb;
@@ -61,14 +61,14 @@ static int proc_get_sb(struct file_system_type *fs_type,
 
 	sb = sget(fs_type, proc_test_super, proc_set_super, ns);
 	if (IS_ERR(sb))
-		return PTR_ERR(sb);
+		return ERR_CAST(sb);
 
 	if (!sb->s_root) {
 		sb->s_flags = flags;
 		err = proc_fill_super(sb);
 		if (err) {
 			deactivate_locked_super(sb);
-			return err;
+			return ERR_PTR(err);
 		}
 
 		ei = PROC_I(sb->s_root->d_inode);
@@ -79,11 +79,9 @@ static int proc_get_sb(struct file_system_type *fs_type,
 		}
 
 		sb->s_flags |= MS_ACTIVE;
-		ns->proc_mnt = mnt;
 	}
 
-	simple_set_mnt(mnt, sb);
+	return dget(sb->s_root);
-	return 0;
 }
 
 static void proc_kill_sb(struct super_block *sb)
@@ -97,7 +95,7 @@ static void proc_kill_sb(struct super_block *sb)
 
 static struct file_system_type proc_fs_type = {
 	.name		= "proc",
-	.get_sb		= proc_get_sb,
+	.mount		= proc_mount,
 	.kill_sb	= proc_kill_sb,
 };
 
@@ -115,6 +113,7 @@ void __init proc_root_init(void)
 		return;
 	}
 
+	init_pid_ns.proc_mnt = proc_mnt;
 	proc_symlink("mounts", NULL, "self/mounts");
 
 	proc_net_init();
@@ -213,6 +212,7 @@ int pid_ns_prepare_proc(struct pid_namespace *ns)
 	if (IS_ERR(mnt))
 		return PTR_ERR(mnt);
 
+	ns->proc_mnt = mnt;
 	return 0;
 }
 

fs/qnx4/inode.c

@@ -454,17 +454,16 @@ static void destroy_inodecache(void)
 	kmem_cache_destroy(qnx4_inode_cachep);
 }
 
-static int qnx4_get_sb(struct file_system_type *fs_type,
+static struct dentry *qnx4_mount(struct file_system_type *fs_type,
-	int flags, const char *dev_name, void *data, struct vfsmount *mnt)
+	int flags, const char *dev_name, void *data)
 {
-	return get_sb_bdev(fs_type, flags, dev_name, data, qnx4_fill_super,
+	return mount_bdev(fs_type, flags, dev_name, data, qnx4_fill_super);
-			   mnt);
 }
 
 static struct file_system_type qnx4_fs_type = {
 	.owner		= THIS_MODULE,
 	.name		= "qnx4",
-	.get_sb		= qnx4_get_sb,
+	.mount		= qnx4_mount,
 	.kill_sb	= kill_block_super,
 	.fs_flags	= FS_REQUIRES_DEV,
 };

fs/ramfs/inode.c

@@ -255,17 +255,16 @@ fail:
 	return err;
 }
 
-int ramfs_get_sb(struct file_system_type *fs_type,
+struct dentry *ramfs_mount(struct file_system_type *fs_type,
-	int flags, const char *dev_name, void *data, struct vfsmount *mnt)
+	int flags, const char *dev_name, void *data)
 {
-	return get_sb_nodev(fs_type, flags, data, ramfs_fill_super, mnt);
+	return mount_nodev(fs_type, flags, data, ramfs_fill_super);
 }
 
-static int rootfs_get_sb(struct file_system_type *fs_type,
+static struct dentry *rootfs_mount(struct file_system_type *fs_type,
-	int flags, const char *dev_name, void *data, struct vfsmount *mnt)
+	int flags, const char *dev_name, void *data)
 {
-	return get_sb_nodev(fs_type, flags|MS_NOUSER, data, ramfs_fill_super,
+	return mount_nodev(fs_type, flags|MS_NOUSER, data, ramfs_fill_super);
-			    mnt);
 }
 
 static void ramfs_kill_sb(struct super_block *sb)
@@ -276,12 +275,12 @@ static void ramfs_kill_sb(struct super_block *sb)
 
 static struct file_system_type ramfs_fs_type = {
 	.name		= "ramfs",
-	.get_sb		= ramfs_get_sb,
+	.mount		= ramfs_mount,
 	.kill_sb	= ramfs_kill_sb,
 };
 static struct file_system_type rootfs_fs_type = {
 	.name		= "rootfs",
-	.get_sb		= rootfs_get_sb,
+	.mount		= rootfs_mount,
 	.kill_sb	= kill_litter_super,
 };
 

fs/reiserfs/super.c

@@ -2213,12 +2213,11 @@ out:
 
 #endif
 
-static int get_super_block(struct file_system_type *fs_type,
+static struct dentry *get_super_block(struct file_system_type *fs_type,
 			   int flags, const char *dev_name,
-			   void *data, struct vfsmount *mnt)
+			   void *data)
 {
-	return get_sb_bdev(fs_type, flags, dev_name, data, reiserfs_fill_super,
+	return mount_bdev(fs_type, flags, dev_name, data, reiserfs_fill_super);
-			   mnt);
 }
 
 static int __init init_reiserfs_fs(void)
@@ -2253,7 +2252,7 @@ static void __exit exit_reiserfs_fs(void)
 struct file_system_type reiserfs_fs_type = {
 	.owner = THIS_MODULE,
 	.name = "reiserfs",
-	.get_sb = get_super_block,
+	.mount = get_super_block,
 	.kill_sb = reiserfs_kill_sb,
 	.fs_flags = FS_REQUIRES_DEV,
 };

fs/romfs/super.c

@@ -552,20 +552,19 @@ error_rsb:
 /*
  * get a superblock for mounting
  */
-static int romfs_get_sb(struct file_system_type *fs_type,
+static struct dentry *romfs_mount(struct file_system_type *fs_type,
 			int flags, const char *dev_name,
-			void *data, struct vfsmount *mnt)
+			void *data)
 {
-	int ret = -EINVAL;
+	struct dentry *ret = ERR_PTR(-EINVAL);
 
 #ifdef CONFIG_ROMFS_ON_MTD
-	ret = get_sb_mtd(fs_type, flags, dev_name, data, romfs_fill_super,
+	ret = mount_mtd(fs_type, flags, dev_name, data, romfs_fill_super);
-			 mnt);
 #endif
 #ifdef CONFIG_ROMFS_ON_BLOCK
-	if (ret == -EINVAL)
+	if (ret == ERR_PTR(-EINVAL))
-		ret = get_sb_bdev(fs_type, flags, dev_name, data,
+		ret = mount_bdev(fs_type, flags, dev_name, data,
-				  romfs_fill_super, mnt);
+				  romfs_fill_super);
 #endif
 	return ret;
 }
@@ -592,7 +591,7 @@ static void romfs_kill_sb(struct super_block *sb)
 static struct file_system_type romfs_fs_type = {
 	.owner		= THIS_MODULE,
 	.name		= "romfs",
-	.get_sb		= romfs_get_sb,
+	.mount		= romfs_mount,
 	.kill_sb	= romfs_kill_sb,
 	.fs_flags	= FS_REQUIRES_DEV,
 };

fs/squashfs/super.c

@@ -370,12 +370,10 @@ static void squashfs_put_super(struct super_block *sb)
 }
 
 
-static int squashfs_get_sb(struct file_system_type *fs_type, int flags,
+static struct dentry *squashfs_mount(struct file_system_type *fs_type, int flags,
-				const char *dev_name, void *data,
+				const char *dev_name, void *data)
-				struct vfsmount *mnt)
 {
-	return get_sb_bdev(fs_type, flags, dev_name, data, squashfs_fill_super,
+	return mount_bdev(fs_type, flags, dev_name, data, squashfs_fill_super);
-				mnt);
 }
 
 
@@ -451,7 +449,7 @@ static void squashfs_destroy_inode(struct inode *inode)
 static struct file_system_type squashfs_fs_type = {
 	.owner = THIS_MODULE,
 	.name = "squashfs",
-	.get_sb = squashfs_get_sb,
+	.mount = squashfs_mount,
 	.kill_sb = kill_block_super,
 	.fs_flags = FS_REQUIRES_DEV
 };

fs/super.c

@@ -715,15 +715,14 @@ static int ns_set_super(struct super_block *sb, void *data)
 	return set_anon_super(sb, NULL);
 }
 
-int get_sb_ns(struct file_system_type *fs_type, int flags, void *data,
+struct dentry *mount_ns(struct file_system_type *fs_type, int flags,
-	int (*fill_super)(struct super_block *, void *, int),
+	void *data, int (*fill_super)(struct super_block *, void *, int))
-	struct vfsmount *mnt)
 {
 	struct super_block *sb;
 
 	sb = sget(fs_type, ns_test_super, ns_set_super, data);
 	if (IS_ERR(sb))
-		return PTR_ERR(sb);
+		return ERR_CAST(sb);
 
 	if (!sb->s_root) {
 		int err;
@@ -731,17 +730,16 @@ int get_sb_ns(struct file_system_type *fs_type, int flags, void *data,
 		err = fill_super(sb, data, flags & MS_SILENT ? 1 : 0);
 		if (err) {
 			deactivate_locked_super(sb);
-			return err;
+			return ERR_PTR(err);
 		}
 
 		sb->s_flags |= MS_ACTIVE;
 	}
 
-	simple_set_mnt(mnt, sb);
+	return dget(sb->s_root);
-	return 0;
 }
 
-EXPORT_SYMBOL(get_sb_ns);
+EXPORT_SYMBOL(mount_ns);
 
 #ifdef CONFIG_BLOCK
 static int set_bdev_super(struct super_block *s, void *data)
@@ -762,10 +760,9 @@ static int test_bdev_super(struct super_block *s, void *data)
 	return (void *)s->s_bdev == data;
 }
 
-int get_sb_bdev(struct file_system_type *fs_type,
+struct dentry *mount_bdev(struct file_system_type *fs_type,
 	int flags, const char *dev_name, void *data,
-	int (*fill_super)(struct super_block *, void *, int),
+	int (*fill_super)(struct super_block *, void *, int))
-	struct vfsmount *mnt)
 {
 	struct block_device *bdev;
 	struct super_block *s;
@@ -777,7 +774,7 @@ int get_sb_bdev(struct file_system_type *fs_type,
 
 	bdev = open_bdev_exclusive(dev_name, mode, fs_type);
 	if (IS_ERR(bdev))
-		return PTR_ERR(bdev);
+		return ERR_CAST(bdev);
 
 	/*
 	 * once the super is inserted into the list by sget, s_umount
@@ -829,15 +826,30 @@ int get_sb_bdev(struct file_system_type *fs_type,
 		bdev->bd_super = s;
 	}
 
-	simple_set_mnt(mnt, s);
+	return dget(s->s_root);
-	return 0;
 
 error_s:
 	error = PTR_ERR(s);
 error_bdev:
 	close_bdev_exclusive(bdev, mode);
 error:
-	return error;
+	return ERR_PTR(error);
+}
+EXPORT_SYMBOL(mount_bdev);
+
+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)
+{
+	struct dentry *root;
+
+	root = mount_bdev(fs_type, flags, dev_name, data, fill_super);
+	if (IS_ERR(root))
+		return PTR_ERR(root);
+	mnt->mnt_root = root;
+	mnt->mnt_sb = root->d_sb;
+	return 0;
 }
 
 EXPORT_SYMBOL(get_sb_bdev);
@@ -856,29 +868,42 @@ void kill_block_super(struct super_block *sb)
 EXPORT_SYMBOL(kill_block_super);
 #endif
 
-int get_sb_nodev(struct file_system_type *fs_type,
+struct dentry *mount_nodev(struct file_system_type *fs_type,
 	int flags, void *data,
-	int (*fill_super)(struct super_block *, void *, int),
+	int (*fill_super)(struct super_block *, void *, int))
-	struct vfsmount *mnt)
 {
 	int error;
 	struct super_block *s = sget(fs_type, NULL, set_anon_super, NULL);
 
 	if (IS_ERR(s))
-		return PTR_ERR(s);
+		return ERR_CAST(s);
 
 	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;
-	simple_set_mnt(mnt, s);
+	return dget(s->s_root);
+}
+EXPORT_SYMBOL(mount_nodev);
+
+int get_sb_nodev(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_nodev(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;
 }
-
 EXPORT_SYMBOL(get_sb_nodev);
 
 static int compare_single(struct super_block *s, void *p)
@@ -886,29 +911,42 @@ 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),
+	int (*fill_super)(struct super_block *, void *, int))
-	struct vfsmount *mnt)
 {
 	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;
 }
 
@@ -918,6 +956,7 @@ struct vfsmount *
 vfs_kern_mount(struct file_system_type *type, int flags, const char *name, void *data)
 {
 	struct vfsmount *mnt;
+	struct dentry *root;
 	char *secdata = NULL;
 	int error;
 
@@ -942,9 +981,19 @@ vfs_kern_mount(struct file_system_type *type, int flags, const char *name, void
 			goto out_free_secdata;
 	}
 
+	if (type->mount) {
+		root = type->mount(type, flags, name, data);
+		if (IS_ERR(root)) {
+			error = PTR_ERR(root);
+			goto out_free_secdata;
+		}
+		mnt->mnt_root = root;
+		mnt->mnt_sb = root->d_sb;
+	} else {
 		error = type->get_sb(type, flags, name, data, mnt);
 		if (error < 0)
 			goto out_free_secdata;
+	}
 	BUG_ON(!mnt->mnt_sb);
 	WARN_ON(!mnt->mnt_sb->s_bdi);
 	mnt->mnt_sb->s_flags |= MS_BORN;

fs/sysfs/mount.c

@@ -23,7 +23,7 @@
 #include "sysfs.h"
 
 
-static struct vfsmount *sysfs_mount;
+static struct vfsmount *sysfs_mnt;
 struct kmem_cache *sysfs_dir_cachep;
 
 static const struct super_operations sysfs_ops = {
@@ -95,18 +95,17 @@ static int sysfs_set_super(struct super_block *sb, void *data)
 	return error;
 }
 
-static int sysfs_get_sb(struct file_system_type *fs_type,
+static struct dentry *sysfs_mount(struct file_system_type *fs_type,
-	int flags, const char *dev_name, void *data, struct vfsmount *mnt)
+	int flags, const char *dev_name, void *data)
 {
 	struct sysfs_super_info *info;
 	enum kobj_ns_type type;
 	struct super_block *sb;
 	int error;
 
-	error = -ENOMEM;
 	info = kzalloc(sizeof(*info), GFP_KERNEL);
 	if (!info)
-		goto out;
+		return ERR_PTR(-ENOMEM);
 
 	for (type = KOBJ_NS_TYPE_NONE; type < KOBJ_NS_TYPES; type++)
 		info->ns[type] = kobj_ns_current(type);
@@ -114,24 +113,19 @@ static int sysfs_get_sb(struct file_system_type *fs_type,
 	sb = sget(fs_type, sysfs_test_super, sysfs_set_super, info);
 	if (IS_ERR(sb) || sb->s_fs_info != info)
 		kfree(info);
-	if (IS_ERR(sb)) {
+	if (IS_ERR(sb))
-		error = PTR_ERR(sb);
+		return ERR_CAST(sb);
-		goto out;
-	}
 	if (!sb->s_root) {
 		sb->s_flags = flags;
 		error = sysfs_fill_super(sb, data, flags & MS_SILENT ? 1 : 0);
 		if (error) {
 			deactivate_locked_super(sb);
-			goto out;
+			return ERR_PTR(error);
 		}
 		sb->s_flags |= MS_ACTIVE;
 	}
 
-	simple_set_mnt(mnt, sb);
+	return dget(sb->s_root);
-	error = 0;
-out:
-	return error;
 }
 
 static void sysfs_kill_sb(struct super_block *sb)
@@ -147,7 +141,7 @@ static void sysfs_kill_sb(struct super_block *sb)
 
 static struct file_system_type sysfs_fs_type = {
 	.name		= "sysfs",
-	.get_sb		= sysfs_get_sb,
+	.mount		= sysfs_mount,
 	.kill_sb	= sysfs_kill_sb,
 };
 
@@ -189,11 +183,11 @@ int __init sysfs_init(void)
 
 	err = register_filesystem(&sysfs_fs_type);
 	if (!err) {
-		sysfs_mount = kern_mount(&sysfs_fs_type);
+		sysfs_mnt = kern_mount(&sysfs_fs_type);
-		if (IS_ERR(sysfs_mount)) {
+		if (IS_ERR(sysfs_mnt)) {
 			printk(KERN_ERR "sysfs: could not mount!\n");
-			err = PTR_ERR(sysfs_mount);
+			err = PTR_ERR(sysfs_mnt);
-			sysfs_mount = NULL;
+			sysfs_mnt = NULL;
 			unregister_filesystem(&sysfs_fs_type);
 			goto out_err;
 		}

fs/sysv/super.c

@@ -526,23 +526,22 @@ failed:
 
 /* Every kernel module contains stuff like this. */
 
-static int sysv_get_sb(struct file_system_type *fs_type,
+static struct dentry *sysv_mount(struct file_system_type *fs_type,
-	int flags, const char *dev_name, void *data, struct vfsmount *mnt)
+	int flags, const char *dev_name, void *data)
 {
-	return get_sb_bdev(fs_type, flags, dev_name, data, sysv_fill_super,
+	return mount_bdev(fs_type, flags, dev_name, data, sysv_fill_super);
-			   mnt);
 }
 
-static int v7_get_sb(struct file_system_type *fs_type,
+static struct dentry *v7_mount(struct file_system_type *fs_type,
-	int flags, const char *dev_name, void *data, struct vfsmount *mnt)
+	int flags, const char *dev_name, void *data)
 {
-	return get_sb_bdev(fs_type, flags, dev_name, data, v7_fill_super, mnt);
+	return mount_bdev(fs_type, flags, dev_name, data, v7_fill_super);
 }
 
 static struct file_system_type sysv_fs_type = {
 	.owner		= THIS_MODULE,
 	.name		= "sysv",
-	.get_sb		= sysv_get_sb,
+	.mount		= sysv_mount,
 	.kill_sb	= kill_block_super,
 	.fs_flags	= FS_REQUIRES_DEV,
 };
@@ -550,7 +549,7 @@ static struct file_system_type sysv_fs_type = {
 static struct file_system_type v7_fs_type = {
 	.owner		= THIS_MODULE,
 	.name		= "v7",
-	.get_sb		= v7_get_sb,
+	.mount		= v7_mount,
 	.kill_sb	= kill_block_super,
 	.fs_flags	= FS_REQUIRES_DEV,
 };

fs/ubifs/super.c

@@ -2038,8 +2038,8 @@ static int sb_test(struct super_block *sb, void *data)
 	return c->vi.cdev == *dev;
 }
 
-static int ubifs_get_sb(struct file_system_type *fs_type, int flags,
+static struct dentry *ubifs_mount(struct file_system_type *fs_type, int flags,
-			const char *name, void *data, struct vfsmount *mnt)
+			const char *name, void *data)
 {
 	struct ubi_volume_desc *ubi;
 	struct ubi_volume_info vi;
@@ -2057,7 +2057,7 @@ static int ubifs_get_sb(struct file_system_type *fs_type, int flags,
 	if (IS_ERR(ubi)) {
 		dbg_err("cannot open \"%s\", error %d",
 			name, (int)PTR_ERR(ubi));
-		return PTR_ERR(ubi);
+		return ERR_CAST(ubi);
 	}
 	ubi_get_volume_info(ubi, &vi);
 
@@ -2095,20 +2095,19 @@ static int ubifs_get_sb(struct file_system_type *fs_type, int flags,
 	/* 'fill_super()' opens ubi again so we must close it here */
 	ubi_close_volume(ubi);
 
-	simple_set_mnt(mnt, sb);
+	return dget(sb->s_root);
-	return 0;
 
 out_deact:
 	deactivate_locked_super(sb);
 out_close:
 	ubi_close_volume(ubi);
-	return err;
+	return ERR_PTR(err);
 }
 
 static struct file_system_type ubifs_fs_type = {
 	.name    = "ubifs",
 	.owner   = THIS_MODULE,
-	.get_sb  = ubifs_get_sb,
+	.mount   = ubifs_mount,
 	.kill_sb = kill_anon_super,
 };
 

fs/udf/super.c

@@ -107,17 +107,16 @@ struct logicalVolIntegrityDescImpUse *udf_sb_lvidiu(struct udf_sb_info *sbi)
 }
 
 /* UDF filesystem type */
-static int udf_get_sb(struct file_system_type *fs_type,
+static struct dentry *udf_mount(struct file_system_type *fs_type,
-		      int flags, const char *dev_name, void *data,
+		      int flags, const char *dev_name, void *data)
-		      struct vfsmount *mnt)
 {
-	return get_sb_bdev(fs_type, flags, dev_name, data, udf_fill_super, mnt);
+	return mount_bdev(fs_type, flags, dev_name, data, udf_fill_super);
 }
 
 static struct file_system_type udf_fstype = {
 	.owner		= THIS_MODULE,
 	.name		= "udf",
-	.get_sb		= udf_get_sb,
+	.mount		= udf_mount,
 	.kill_sb	= kill_block_super,
 	.fs_flags	= FS_REQUIRES_DEV,
 };

fs/ufs/super.c

@@ -1454,16 +1454,16 @@ static const struct super_operations ufs_super_ops = {
 	.show_options   = ufs_show_options,
 };
 
-static int ufs_get_sb(struct file_system_type *fs_type,
+static struct dentry *ufs_mount(struct file_system_type *fs_type,
-	int flags, const char *dev_name, void *data, struct vfsmount *mnt)
+	int flags, const char *dev_name, void *data)
 {
-	return get_sb_bdev(fs_type, flags, dev_name, data, ufs_fill_super, mnt);
+	return mount_bdev(fs_type, flags, dev_name, data, ufs_fill_super);
 }
 
 static struct file_system_type ufs_fs_type = {
 	.owner		= THIS_MODULE,
 	.name		= "ufs",
-	.get_sb		= ufs_get_sb,
+	.mount		= ufs_mount,
 	.kill_sb	= kill_block_super,
 	.fs_flags	= FS_REQUIRES_DEV,
 };

fs/xfs/linux-2.6/xfs_super.c

@@ -1609,16 +1609,14 @@ xfs_fs_fill_super(
 	goto out_free_sb;
 }
 
-STATIC int
+STATIC struct dentry *
-xfs_fs_get_sb(
+xfs_fs_mount(
 	struct file_system_type	*fs_type,
 	int			flags,
 	const char		*dev_name,
-	void			*data,
+	void			*data)
-	struct vfsmount		*mnt)
 {
-	return get_sb_bdev(fs_type, flags, dev_name, data, xfs_fs_fill_super,
+	return mount_bdev(fs_type, flags, dev_name, data, xfs_fs_fill_super);
-			   mnt);
 }
 
 static const struct super_operations xfs_super_operations = {
@@ -1639,7 +1637,7 @@ static const struct super_operations xfs_super_operations = {
 static struct file_system_type xfs_fs_type = {
 	.owner			= THIS_MODULE,
 	.name			= "xfs",
-	.get_sb			= xfs_fs_get_sb,
+	.mount			= xfs_fs_mount,
 	.kill_sb		= kill_block_super,
 	.fs_flags		= FS_REQUIRES_DEV,
 };

include/linux/fs.h

@@ -1772,6 +1772,8 @@ struct file_system_type {
 	int fs_flags;
 	int (*get_sb) (struct file_system_type *, int,
 		       const char *, void *, struct vfsmount *);
+	struct dentry *(*mount) (struct file_system_type *, int,
+		       const char *, void *);
 	void (*kill_sb) (struct super_block *);
 	struct module *owner;
 	struct file_system_type * next;
@@ -1787,17 +1789,25 @@ struct file_system_type {
 	struct lock_class_key i_alloc_sem_key;
 };
 
-extern int get_sb_ns(struct file_system_type *fs_type, int flags, void *data,
+extern struct dentry *mount_ns(struct file_system_type *fs_type, int flags,
-	int (*fill_super)(struct super_block *, void *, int),
+	void *data, int (*fill_super)(struct super_block *, void *, int));
-	struct vfsmount *mnt);
+extern struct dentry *mount_bdev(struct file_system_type *fs_type,
+	int flags, const char *dev_name, void *data,
+	int (*fill_super)(struct super_block *, void *, int));
 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),
 	struct vfsmount *mnt);
+extern struct dentry *mount_nodev(struct file_system_type *fs_type,
+	int flags, void *data,
+	int (*fill_super)(struct super_block *, void *, int));
 extern int get_sb_nodev(struct file_system_type *fs_type,
 	int flags, void *data,
 	int (*fill_super)(struct super_block *, void *, int),
@@ -1813,9 +1823,8 @@ struct super_block *sget(struct file_system_type *type,
 			int (*test)(struct super_block *,void *),
 			int (*set)(struct super_block *,void *),
 			void *data);
-extern int get_sb_pseudo(struct file_system_type *, char *,
+extern struct dentry *mount_pseudo(struct file_system_type *, char *,
-	const struct super_operations *ops, unsigned long,
+	const struct super_operations *ops, unsigned long);
-	struct vfsmount *mnt);
 extern void simple_set_mnt(struct vfsmount *mnt, struct super_block *sb);
 
 static inline void sb_mark_dirty(struct super_block *sb)

include/linux/mtd/super.h

@@ -18,10 +18,9 @@
 #include <linux/fs.h>
 #include <linux/mount.h>
 
-extern int get_sb_mtd(struct file_system_type *fs_type, int flags,
+extern struct dentry *mount_mtd(struct file_system_type *fs_type, int flags,
 		      const char *dev_name, void *data,
-		      int (*fill_super)(struct super_block *, void *, int),
+		      int (*fill_super)(struct super_block *, void *, int));
-		      struct vfsmount *mnt);
 extern void kill_mtd_super(struct super_block *sb);
 
 

include/linux/ramfs.h

@@ -3,8 +3,8 @@
 
 struct inode *ramfs_get_inode(struct super_block *sb, const struct inode *dir,
 	 int mode, dev_t dev);
-extern int ramfs_get_sb(struct file_system_type *fs_type,
+extern struct dentry *ramfs_mount(struct file_system_type *fs_type,
-	 int flags, const char *dev_name, void *data, struct vfsmount *mnt);
+	 int flags, const char *dev_name, void *data);
 
 #ifndef CONFIG_MMU
 extern int ramfs_nommu_expand_for_mapping(struct inode *inode, size_t newsize);

ipc/mqueue.c

@@ -211,13 +211,13 @@ out:
 	return error;
 }
 
-static int mqueue_get_sb(struct file_system_type *fs_type,
+static struct dentry *mqueue_mount(struct file_system_type *fs_type,
 			 int flags, const char *dev_name,
-			 void *data, struct vfsmount *mnt)
+			 void *data)
 {
 	if (!(flags & MS_KERNMOUNT))
 		data = current->nsproxy->ipc_ns;
-	return get_sb_ns(fs_type, flags, data, mqueue_fill_super, mnt);
+	return mount_ns(fs_type, flags, data, mqueue_fill_super);
 }
 
 static void init_once(void *foo)
@@ -1232,7 +1232,7 @@ static const struct super_operations mqueue_super_ops = {
 
 static struct file_system_type mqueue_fs_type = {
 	.name = "mqueue",
-	.get_sb = mqueue_get_sb,
+	.mount = mqueue_mount,
 	.kill_sb = kill_litter_super,
 };
 

kernel/cgroup.c

@@ -1460,9 +1460,9 @@ static int cgroup_get_rootdir(struct super_block *sb)
 	return 0;
 }
 
-static int cgroup_get_sb(struct file_system_type *fs_type,
+static struct dentry *cgroup_mount(struct file_system_type *fs_type,
 			 int flags, const char *unused_dev_name,
-			 void *data, struct vfsmount *mnt)
+			 void *data)
 {
 	struct cgroup_sb_opts opts;
 	struct cgroupfs_root *root;
@@ -1596,10 +1596,9 @@ static int cgroup_get_sb(struct file_system_type *fs_type,
 		drop_parsed_module_refcounts(opts.subsys_bits);
 	}
 
-	simple_set_mnt(mnt, sb);
 	kfree(opts.release_agent);
 	kfree(opts.name);
-	return 0;
+	return dget(sb->s_root);
 
  drop_new_super:
 	deactivate_locked_super(sb);
@@ -1608,7 +1607,7 @@ static int cgroup_get_sb(struct file_system_type *fs_type,
  out_err:
 	kfree(opts.release_agent);
 	kfree(opts.name);
-	return ret;
+	return ERR_PTR(ret);
 }
 
 static void cgroup_kill_sb(struct super_block *sb) {
@@ -1658,7 +1657,7 @@ static void cgroup_kill_sb(struct super_block *sb) {
 
 static struct file_system_type cgroup_fs_type = {
 	.name = "cgroup",
-	.get_sb = cgroup_get_sb,
+	.mount = cgroup_mount,
 	.kill_sb = cgroup_kill_sb,
 };
 

kernel/cpuset.c

@@ -231,18 +231,17 @@ static DEFINE_SPINLOCK(cpuset_buffer_lock);
  * users. If someone tries to mount the "cpuset" filesystem, we
  * silently switch it to mount "cgroup" instead
  */
-static int cpuset_get_sb(struct file_system_type *fs_type,
+static struct dentry *cpuset_mount(struct file_system_type *fs_type,
-			 int flags, const char *unused_dev_name,
+			 int flags, const char *unused_dev_name, void *data)
-			 void *data, struct vfsmount *mnt)
 {
 	struct file_system_type *cgroup_fs = get_fs_type("cgroup");
-	int ret = -ENODEV;
+	struct dentry *ret = ERR_PTR(-ENODEV);
 	if (cgroup_fs) {
 		char mountopts[] =
 			"cpuset,noprefix,"
 			"release_agent=/sbin/cpuset_release_agent";
-		ret = cgroup_fs->get_sb(cgroup_fs, flags,
+		ret = cgroup_fs->mount(cgroup_fs, flags,
-					   unused_dev_name, mountopts, mnt);
+					   unused_dev_name, mountopts);
 		put_filesystem(cgroup_fs);
 	}
 	return ret;
@@ -250,7 +249,7 @@ static int cpuset_get_sb(struct file_system_type *fs_type,
 
 static struct file_system_type cpuset_fs_type = {
 	.name = "cpuset",
-	.get_sb = cpuset_get_sb,
+	.mount = cpuset_mount,
 };
 
 /*

mm/shmem.c

@@ -2538,16 +2538,16 @@ static const struct vm_operations_struct shmem_vm_ops = {
 };
 
 
-static int shmem_get_sb(struct file_system_type *fs_type,
+static struct dentry *shmem_mount(struct file_system_type *fs_type,
-	int flags, const char *dev_name, void *data, struct vfsmount *mnt)
+	int flags, const char *dev_name, void *data)
 {
-	return get_sb_nodev(fs_type, flags, data, shmem_fill_super, mnt);
+	return mount_nodev(fs_type, flags, data, shmem_fill_super);
 }
 
 static struct file_system_type tmpfs_fs_type = {
 	.owner		= THIS_MODULE,
 	.name		= "tmpfs",
-	.get_sb		= shmem_get_sb,
+	.mount		= shmem_mount,
 	.kill_sb	= kill_litter_super,
 };
 
@@ -2643,7 +2643,7 @@ out:
 
 static struct file_system_type tmpfs_fs_type = {
 	.name		= "tmpfs",
-	.get_sb		= ramfs_get_sb,
+	.mount		= ramfs_mount,
 	.kill_sb	= kill_litter_super,
 };
 

net/socket.c

@@ -305,19 +305,17 @@ static const struct super_operations sockfs_ops = {
 	.statfs		= simple_statfs,
 };
 
-static int sockfs_get_sb(struct file_system_type *fs_type,
+static struct dentry *sockfs_mount(struct file_system_type *fs_type,
-			 int flags, const char *dev_name, void *data,
+			 int flags, const char *dev_name, void *data)
-			 struct vfsmount *mnt)
 {
-	return get_sb_pseudo(fs_type, "socket:", &sockfs_ops, SOCKFS_MAGIC,
+	return mount_pseudo(fs_type, "socket:", &sockfs_ops, SOCKFS_MAGIC);
-			     mnt);
 }
 
 static struct vfsmount *sock_mnt __read_mostly;
 
 static struct file_system_type sock_fs_type = {
 	.name =		"sockfs",
-	.get_sb =	sockfs_get_sb,
+	.mount =	sockfs_mount,
 	.kill_sb =	kill_anon_super,
 };
 

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
+static struct dentry *
-rpc_get_sb(struct file_system_type *fs_type,
+rpc_mount(struct file_system_type *fs_type,
-		int flags, const char *dev_name, void *data, struct vfsmount *mnt)
+		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,
 };
 

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,
 };