VFS: Unexport do_kern_mount() and clean up simple_pin_fs()

Replace all module uses with the new vfs_kern_mount() interface, and fix up
simple_pin_fs().

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>

8 files changed, 11 insertions, 10 deletions

diff --git a/fs/afs/mntpt.c b/fs/afs/mntpt.c
index 4e6eeb59b83c..7b6dc03caf44 100644
--- a/fs/afs/mntpt.c
+++ b/fs/afs/mntpt.c
@@ -210,7 +210,7 @@ static struct vfsmount *afs_mntpt_do_automount(struct dentry *mntpt)
 
         /* try and do the mount */
         kdebug("--- attempting mount %s -o %s ---", devname, options);
-        mnt = do_kern_mount("afs", 0, devname, options);
+        mnt = vfs_kern_mount(&afs_fs_type, 0, devname, options);
         kdebug("--- mount result %p ---", mnt);
 
         free_page((unsigned long) devname);
diff --git a/fs/afs/super.c b/fs/afs/super.c
index 53c56e7231ab..93a7821db0d7 100644
--- a/fs/afs/super.c
+++ b/fs/afs/super.c
@@ -48,7 +48,7 @@ static void afs_put_super(struct super_block *sb);
 
 static void afs_destroy_inode(struct inode *inode);
 
-static struct file_system_type afs_fs_type = {
+struct file_system_type afs_fs_type = {
         .owner          = THIS_MODULE,
         .name           = "afs",
         .get_sb         = afs_get_sb,
diff --git a/fs/afs/super.h b/fs/afs/super.h
index ac11362f4e95..32de8cc6fae8 100644
--- a/fs/afs/super.h
+++ b/fs/afs/super.h
@@ -38,6 +38,8 @@ static inline struct afs_super_info *AFS_FS_S(struct super_block *sb)
         return sb->s_fs_info;
 }
 
+extern struct file_system_type afs_fs_type;
+
 #endif /* __KERNEL__ */
 
 #endif /* _LINUX_AFS_SUPER_H */
diff --git a/fs/binfmt_misc.c b/fs/binfmt_misc.c
index d73d75591a39..c0a909e1d290 100644
--- a/fs/binfmt_misc.c
+++ b/fs/binfmt_misc.c
@@ -55,6 +55,7 @@ typedef struct {
 } Node;
 
 static DEFINE_RWLOCK(entries_lock);
+static struct file_system_type bm_fs_type;
 static struct vfsmount *bm_mnt;
 static int entry_count;
 
@@ -638,7 +639,7 @@ static ssize_t bm_register_write(struct file *file, const char __user *buffer,
         if (!inode)
                 goto out2;
 
-        err = simple_pin_fs("binfmt_misc", &bm_mnt, &entry_count);
+        err = simple_pin_fs(&bm_fs_type, &bm_mnt, &entry_count);
         if (err) {
                 iput(inode);
                 inode = NULL;
diff --git a/fs/configfs/mount.c b/fs/configfs/mount.c
index f920d30478e5..be5d86ae56f0 100644
--- a/fs/configfs/mount.c
+++ b/fs/configfs/mount.c
@@ -118,7 +118,7 @@ static struct file_system_type configfs_fs_type = {
 
 int configfs_pin_fs(void)
 {
-        return simple_pin_fs("configfs", &configfs_mount,
+        return simple_pin_fs(&configfs_fs_type, &configfs_mount,
                              &configfs_mnt_count);
 }
 
diff --git a/fs/debugfs/inode.c b/fs/debugfs/inode.c
index b55b4ea9a676..90f9417181fd 100644
--- a/fs/debugfs/inode.c
+++ b/fs/debugfs/inode.c
@@ -199,7 +199,7 @@ struct dentry *debugfs_create_file(const char *name, mode_t mode,
 
         pr_debug("debugfs: creating file '%s'\n",name);
 
-        error = simple_pin_fs("debugfs", &debugfs_mount, &debugfs_mount_count);
+        error = simple_pin_fs(&debug_fs_type, &debugfs_mount, &debugfs_mount_count);
         if (error)
                 goto exit;
 
diff --git a/fs/libfs.c b/fs/libfs.c
index 7145ba7a48d0..4a3ec9ad8bed 100644
--- a/fs/libfs.c
+++ b/fs/libfs.c
@@ -424,13 +424,13 @@ out:
 
 static DEFINE_SPINLOCK(pin_fs_lock);
 
-int simple_pin_fs(char *name, struct vfsmount **mount, int *count)
+int simple_pin_fs(struct file_system_type *type, struct vfsmount **mount, int *count)
 {
         struct vfsmount *mnt = NULL;
         spin_lock(&pin_fs_lock);
         if (unlikely(!*mount)) {
                 spin_unlock(&pin_fs_lock);
-                mnt = do_kern_mount(name, 0, name, NULL);
+                mnt = vfs_kern_mount(type, 0, type->name, NULL);
                 if (IS_ERR(mnt))
                         return PTR_ERR(mnt);
                 spin_lock(&pin_fs_lock);
diff --git a/fs/super.c b/fs/super.c
index 848be4fc67a2..15f2afdbf82e 100644
--- a/fs/super.c
+++ b/fs/super.c
@@ -864,11 +864,9 @@ do_kern_mount(const char *fstype, int flags, const char *name, void *data)
         return mnt;
 }
 
-EXPORT_SYMBOL_GPL(do_kern_mount);
-
 struct vfsmount *kern_mount(struct file_system_type *type)
 {
-        return do_kern_mount(type->name, 0, type->name, NULL);
+        return vfs_kern_mount(type, 0, type->name, NULL);
 }
 
 EXPORT_SYMBOL(kern_mount);