nilfs2: separate constructor of metadata files

[firefly-linux-kernel-4.4.55.git] / fs / nilfs2 / ifile.c

diff --git a/fs/nilfs2/ifile.c b/fs/nilfs2/ifile.c
index de86401f209f57cdd712e62498c9c40be9a86744..c1c1fd30c3157b61f1c7506124541ecb778eec16 100644 (file)
--- a/fs/nilfs2/ifile.c
+++ b/fs/nilfs2/ifile.c
@@ -148,3 +148,24 @@ int nilfs_ifile_get_inode_block(struct inode *ifile, ino_t ino,
        }
        return err;
 }
+
+/**
+ * nilfs_ifile_new - create inode file
+ * @sbi: nilfs_sb_info struct
+ * @inode_size: size of an inode
+ */
+struct inode *nilfs_ifile_new(struct nilfs_sb_info *sbi, size_t inode_size)
+{
+       struct inode *ifile;
+       int err;
+
+       ifile = nilfs_mdt_new(sbi->s_nilfs, sbi->s_super, NILFS_IFILE_INO, 0);
+       if (ifile) {
+               err = nilfs_palloc_init_blockgroup(ifile, inode_size);
+               if (unlikely(err)) {
+                       nilfs_mdt_destroy(ifile);
+                       return NULL;
+               }
+       }
+       return ifile;
+}