ubifs: Export ubifs_check_dir_empty()

fscrypto will need this function too. Also get struct ubifs_info
from the provided inode. Not all callers will have a reference to
struct ubifs_info.

Signed-off-by: Richard Weinberger <richard@nod.at>

diff --git a/fs/ubifs/dir.c b/fs/ubifs/dir.c
index ca16c5d..14a226d 100644 (file)
--- a/fs/ubifs/dir.c
+++ b/fs/ubifs/dir.c
@@ -712,15 +712,15 @@ out_cancel:
 
 /**
  * check_dir_empty - check if a directory is empty or not.
- * @c: UBIFS file-system description object
  * @dir: VFS inode object of the directory to check
  *
  * This function checks if directory @dir is empty. Returns zero if the
  * directory is empty, %-ENOTEMPTY if it is not, and other negative error codes
  * in case of of errors.
  */
-static int check_dir_empty(struct ubifs_info *c, struct inode *dir)
+int ubifs_check_dir_empty(struct inode *dir)
 {
+       struct ubifs_info *c = dir->i_sb->s_fs_info;
        struct qstr nm = { .name = NULL };
        struct ubifs_dent_node *dent;
        union ubifs_key key;
@@ -758,7 +758,7 @@ static int ubifs_rmdir(struct inode *dir, struct dentry *dentry)
                inode->i_ino, dir->i_ino);
        ubifs_assert(inode_is_locked(dir));
        ubifs_assert(inode_is_locked(inode));
-       err = check_dir_empty(c, d_inode(dentry));
+       err = ubifs_check_dir_empty(d_inode(dentry));
        if (err)
                return err;
 
@@ -1108,7 +1108,7 @@ static int do_rename(struct inode *old_dir, struct dentry *old_dentry,
                ubifs_assert(inode_is_locked(new_inode));
 
        if (unlink && is_dir) {
-               err = check_dir_empty(c, new_inode);
+               err = ubifs_check_dir_empty(new_inode);
                if (err)
                        return err;
        }

diff --git a/fs/ubifs/ubifs.h b/fs/ubifs/ubifs.h
index b8b18d4..fe94300 100644 (file)
--- a/fs/ubifs/ubifs.h
+++ b/fs/ubifs/ubifs.h
@@ -1728,6 +1728,7 @@ struct inode *ubifs_new_inode(struct ubifs_info *c, const struct inode *dir,
                              umode_t mode);
 int ubifs_getattr(struct vfsmount *mnt, struct dentry *dentry,
                  struct kstat *stat);
+int ubifs_check_dir_empty(struct inode *dir);
 
 /* xattr.c */
 extern const struct xattr_handler *ubifs_xattr_handlers[];