new helper: mount_bdev()

... and switch of the obvious get_sb_bdev() users to ->mount()
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

fs/adfs/super.c

@@ -490,17 +490,16 @@ static int adfs_fill_super(struct super_block *sb, void *data, int silent)
 	return -EINVAL;
 }
 
-static int adfs_get_sb(struct file_system_type *fs_type,
-	int flags, const char *dev_name, void *data, struct vfsmount *mnt)
+static struct dentry *adfs_mount(struct file_system_type *fs_type,
+	int flags, const char *dev_name, void *data)
 {
-	return get_sb_bdev(fs_type, flags, dev_name, data, adfs_fill_super,
-			   mnt);
+	return mount_bdev(fs_type, flags, dev_name, data, adfs_fill_super);
 }
 
 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,
-	int flags, const char *dev_name, void *data, struct vfsmount *mnt)
+static struct dentry *affs_mount(struct file_system_type *fs_type,
+	int flags, const char *dev_name, void *data)
 {
-	return get_sb_bdev(fs_type, flags, dev_name, data, affs_fill_super,
-			   mnt);
+	return mount_bdev(fs_type, flags, dev_name, data, affs_fill_super);
 }
 
 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/befs/linuxvfs.c

@@ -913,18 +913,17 @@ befs_statfs(struct dentry *dentry, struct kstatfs *buf)
 	return 0;
 }
 
-static int
-befs_get_sb(struct file_system_type *fs_type, int flags, const char *dev_name,
-	    void *data, struct vfsmount *mnt)
+static struct dentry *
+befs_mount(struct file_system_type *fs_type, int flags, const char *dev_name,
+	    void *data)
 {
-	return get_sb_bdev(fs_type, flags, dev_name, data, befs_fill_super,
-			   mnt);
+	return mount_bdev(fs_type, flags, dev_name, data, befs_fill_super);
 }
 
 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 @@ static int bfs_fill_super(struct super_block *s, void *data, int silent)
 	return ret;
 }
 
-static int bfs_get_sb(struct file_system_type *fs_type,
-	int flags, const char *dev_name, void *data, struct vfsmount *mnt)
+static struct dentry *bfs_mount(struct file_system_type *fs_type,
+	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/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,
-	int flags, const char *dev_name, void *data, struct vfsmount *mnt)
+static struct dentry *cramfs_mount(struct file_system_type *fs_type,
+	int flags, const char *dev_name, void *data)
 {
-	return get_sb_bdev(fs_type, flags, dev_name, data, cramfs_fill_super,
-			   mnt);
+	return mount_bdev(fs_type, flags, dev_name, data, cramfs_fill_super);
 }
 
 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/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,
-	int flags, const char *dev_name, void *data, struct vfsmount *mnt)
+static struct dentry *efs_mount(struct file_system_type *fs_type,
+	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/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,
-	int flags, const char *dev_name, void *data, struct vfsmount *mnt)
+static struct dentry *ext2_mount(struct file_system_type *fs_type,
+	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 @@ static ssize_t ext2_quota_write(struct super_block *sb, int type,
 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 @@ static ssize_t ext3_quota_write(struct super_block *sb, int type,
 
 #endif
 
-static int ext3_get_sb(struct file_system_type *fs_type,
-	int flags, const char *dev_name, void *data, struct vfsmount *mnt)
+static struct dentry *ext3_mount(struct file_system_type *fs_type,
+	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,
-		       const char *dev_name, void *data, struct vfsmount *mnt);
+static struct dentry *ext4_mount(struct file_system_type *fs_type, int flags,
+		       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 @@ static ssize_t ext4_quota_write(struct super_block *sb, int type,
 
 #endif
 
-static int ext4_get_sb(struct file_system_type *fs_type, int flags,
-		       const char *dev_name, void *data, struct vfsmount *mnt)
+static struct dentry *ext4_mount(struct file_system_type *fs_type, int flags,
+		       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,
-			   mnt);
+	return mount_bdev(fs_type, flags, dev_name, data, msdos_fill_super);
 }
 
 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,
-			   mnt);
+	return mount_bdev(fs_type, flags, dev_name, data, vfat_fill_super);
 }
 
 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 @@ static int vxfs_fill_super(struct super_block *sbp, void *dp, int silent)
 /*
  * The usual module blurb.
  */
-static int vxfs_get_sb(struct file_system_type *fs_type,
-	int flags, const char *dev_name, void *data, struct vfsmount *mnt)
+static struct dentry *vxfs_mount(struct file_system_type *fs_type,
+	int flags, const char *dev_name, void *data)
 {
-	return get_sb_bdev(fs_type, flags, dev_name, data, vxfs_fill_super,
-			   mnt);
+	return mount_bdev(fs_type, flags, dev_name, data, vxfs_fill_super);
 }
 
 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/inode.c

@@ -1070,12 +1070,11 @@ static struct file_system_type fuse_fs_type = {
 };
 
 #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,
-			   mnt);
+	return mount_bdev(fs_type, flags, dev_name, raw_data, fuse_fill_super);
 }
 
 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/hfs/super.c

@@ -441,17 +441,16 @@ static int hfs_fill_super(struct super_block *sb, void *data, int silent)
 	return res;
 }
 
-static int hfs_get_sb(struct file_system_type *fs_type,
-		      int flags, const char *dev_name, void *data,
-		      struct vfsmount *mnt)
+static struct dentry *hfs_mount(struct file_system_type *fs_type,
+		      int flags, const char *dev_name, void *data)
 {
-	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,
-			  int flags, const char *dev_name, void *data,
-			  struct vfsmount *mnt)
+static struct dentry *hfsplus_mount(struct file_system_type *fs_type,
+			  int flags, const char *dev_name, void *data)
 {
-	return get_sb_bdev(fs_type, flags, dev_name, data, hfsplus_fill_super,
-			   mnt);
+	return mount_bdev(fs_type, flags, dev_name, data, hfsplus_fill_super);
 }
 
 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/hpfs/super.c

@@ -686,17 +686,16 @@ bail2:	brelse(bh0);
 	return -EINVAL;
 }
 
-static int hpfs_get_sb(struct file_system_type *fs_type,
-	int flags, const char *dev_name, void *data, struct vfsmount *mnt)
+static struct dentry *hpfs_mount(struct file_system_type *fs_type,
+	int flags, const char *dev_name, void *data)
 {
-	return get_sb_bdev(fs_type, flags, dev_name, data, hpfs_fill_super,
-			   mnt);
+	return mount_bdev(fs_type, flags, dev_name, data, hpfs_fill_super);
 }
 
 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/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,
-	int flags, const char *dev_name, void *data, struct vfsmount *mnt)
+static struct dentry *isofs_mount(struct file_system_type *fs_type,
+	int flags, const char *dev_name, void *data)
 {
-	return get_sb_bdev(fs_type, flags, dev_name, data, isofs_fill_super,
-				mnt);
+	return mount_bdev(fs_type, flags, dev_name, data, isofs_fill_super);
 }
 
 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/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,
-	int flags, const char *dev_name, void *data, struct vfsmount *mnt)
+static struct dentry *jfs_do_mount(struct file_system_type *fs_type,
+	int flags, const char *dev_name, void *data)
 {
-	return get_sb_bdev(fs_type, flags, dev_name, data, jfs_fill_super,
-			   mnt);
+	return mount_bdev(fs_type, flags, dev_name, data, jfs_fill_super);
 }
 
 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/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,
-	int flags, const char *dev_name, void *data, struct vfsmount *mnt)
+static struct dentry *minix_mount(struct file_system_type *fs_type,
+	int flags, const char *dev_name, void *data)
 {
-	return get_sb_bdev(fs_type, flags, dev_name, data, minix_fill_super,
-			   mnt);
+	return mount_bdev(fs_type, flags, dev_name, data, minix_fill_super);
 }
 
 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/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,
-	int flags, const char *dev_name, void *data, struct vfsmount *mnt)
+static struct dentry *ntfs_mount(struct file_system_type *fs_type,
+	int flags, const char *dev_name, void *data)
 {
-	return get_sb_bdev(fs_type, flags, dev_name, data, ntfs_fill_super,
-			   mnt);
+	return mount_bdev(fs_type, flags, dev_name, data, ntfs_fill_super);
 }
 
 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/super.c

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

fs/omfs/inode.c

@@ -557,17 +557,16 @@ static int omfs_fill_super(struct super_block *sb, void *data, int silent)
 	return ret;
 }
 
-static int omfs_get_sb(struct file_system_type *fs_type,
-			int flags, const char *dev_name,
-			void *data, struct vfsmount *m)
+static struct dentry *omfs_mount(struct file_system_type *fs_type,
+			int flags, const char *dev_name, void *data)
 {
-	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/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,
-	int flags, const char *dev_name, void *data, struct vfsmount *mnt)
+static struct dentry *qnx4_mount(struct file_system_type *fs_type,
+	int flags, const char *dev_name, void *data)
 {
-	return get_sb_bdev(fs_type, flags, dev_name, data, qnx4_fill_super,
-			   mnt);
+	return mount_bdev(fs_type, flags, dev_name, data, qnx4_fill_super);
 }
 
 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/reiserfs/super.c

@@ -2213,12 +2213,11 @@ static ssize_t reiserfs_quota_write(struct super_block *sb, int type,
 
 #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,
-			   mnt);
+	return mount_bdev(fs_type, flags, dev_name, data, reiserfs_fill_super);
 }
 
 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/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,
-				const char *dev_name, void *data,
-				struct vfsmount *mnt)
+static struct dentry *squashfs_mount(struct file_system_type *fs_type, int flags,
+				const char *dev_name, void *data)
 {
-	return get_sb_bdev(fs_type, flags, dev_name, data, squashfs_fill_super,
-				mnt);
+	return mount_bdev(fs_type, flags, dev_name, data, squashfs_fill_super);
 }
 
 
@@ -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

@@ -762,10 +762,9 @@ 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),
-	struct vfsmount *mnt)
+	int (*fill_super)(struct super_block *, void *, int))
 {
 	struct block_device *bdev;
 	struct super_block *s;
@@ -777,7 +776,7 @@ 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 +828,30 @@ int get_sb_bdev(struct file_system_type *fs_type,
 		bdev->bd_super = s;
 	}
 
-	simple_set_mnt(mnt, s);
-	return 0;
+	return dget(s->s_root);
 
 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);

fs/sysv/super.c

@@ -526,23 +526,22 @@ static int v7_fill_super(struct super_block *sb, void *data, int silent)
 
 /* Every kernel module contains stuff like this. */
 
-static int sysv_get_sb(struct file_system_type *fs_type,
-	int flags, const char *dev_name, void *data, struct vfsmount *mnt)
+static struct dentry *sysv_mount(struct file_system_type *fs_type,
+	int flags, const char *dev_name, void *data)
 {
-	return get_sb_bdev(fs_type, flags, dev_name, data, sysv_fill_super,
-			   mnt);
+	return mount_bdev(fs_type, flags, dev_name, data, sysv_fill_super);
 }
 
-static int v7_get_sb(struct file_system_type *fs_type,
-	int flags, const char *dev_name, void *data, struct vfsmount *mnt)
+static struct dentry *v7_mount(struct file_system_type *fs_type,
+	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/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,
-		      int flags, const char *dev_name, void *data,
-		      struct vfsmount *mnt)
+static struct dentry *udf_mount(struct file_system_type *fs_type,
+		      int flags, const char *dev_name, void *data)
 {
-	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,
-	int flags, const char *dev_name, void *data, struct vfsmount *mnt)
+static struct dentry *ufs_mount(struct file_system_type *fs_type,
+	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
-xfs_fs_get_sb(
+STATIC struct dentry *
+xfs_fs_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, xfs_fs_fill_super,
-			   mnt);
+	return mount_bdev(fs_type, flags, dev_name, data, xfs_fs_fill_super);
 }
 
 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

@@ -1792,6 +1792,9 @@ struct file_system_type {
 extern int get_sb_ns(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_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),