convert get_sb_pseudo() users

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

arch/ia64/kernel/perfmon.c

@@ -618,16 +618,15 @@ pfm_get_unmapped_area(struct file *file, unsigned long addr, unsigned long len,
 }
 
 
-static int
-pfmfs_get_sb(struct file_system_type *fs_type, int flags, const char *dev_name, void *data,
-	     struct vfsmount *mnt)
+static struct dentry *
+pfmfs_mount(struct file_system_type *fs_type, int flags, const char *dev_name, void *data)
 {
-	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,
 };
 

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,
-                               const char *dev_name, void *data,
-                               struct vfsmount *mnt)
+static struct dentry *mtd_inodefs_mount(struct file_system_type *fs_type,
+				int flags, const char *dev_name, void *data)
 {
-        return get_sb_pseudo(fs_type, "mtd_inode:", NULL, MTD_INODE_FS_MAGIC,
-                             mnt);
+        return mount_pseudo(fs_type, "mtd_inode:", NULL, MTD_INODE_FS_MAGIC);
 }
 
 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,
 };
 

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,
-			       const char *dev_name, void *data,
-			       struct vfsmount *mnt)
+static struct dentry *anon_inodefs_mount(struct file_system_type *fs_type,
+				int flags, const char *dev_name, void *data)
 {
-	return get_sb_pseudo(fs_type, "anon_inode:", NULL, ANON_INODE_FS_MAGIC,
-			     mnt);
+	return mount_pseudo(fs_type, "anon_inode:", NULL, ANON_INODE_FS_MAGIC);
 }
 
 /*
@@ -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/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,
-	int flags, const char *dev_name, void *data, struct vfsmount *mnt)
+static struct dentry *bd_mount(struct file_system_type *fs_type,
+	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/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,
-	const struct super_operations *ops, unsigned long magic,
-	struct vfsmount *mnt)
+struct dentry *mount_pseudo(struct file_system_type *fs_type, char *name,
+	const struct super_operations *ops, unsigned long magic)
 {
 	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 0;
+	return dget(s->s_root);
 
 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/pipe.c

@@ -1247,16 +1247,15 @@ long pipe_fcntl(struct file *file, unsigned int cmd, unsigned long arg)
  * 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,
-			 int flags, const char *dev_name, void *data,
-			 struct vfsmount *mnt)
+static struct dentry *pipefs_mount(struct file_system_type *fs_type,
+			 int flags, const char *dev_name, void *data)
 {
-	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,
 };
 

include/linux/fs.h

@@ -1824,9 +1824,8 @@ 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 *,
-	const struct super_operations *ops, unsigned long,
-	struct vfsmount *mnt);
+extern struct dentry *mount_pseudo(struct file_system_type *, char *,
+	const struct super_operations *ops, unsigned long);
 extern void simple_set_mnt(struct vfsmount *mnt, struct super_block *sb);
 
 static inline void sb_mark_dirty(struct super_block *sb)

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,
-			 int flags, const char *dev_name, void *data,
-			 struct vfsmount *mnt)
+static struct dentry *sockfs_mount(struct file_system_type *fs_type,
+			 int flags, const char *dev_name, void *data)
 {
-	return get_sb_pseudo(fs_type, "socket:", &sockfs_ops, SOCKFS_MAGIC,
-			     mnt);
+	return mount_pseudo(fs_type, "socket:", &sockfs_ops, SOCKFS_MAGIC);
 }
 
 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,
 };