nilfs2: separate constructor of metadata files
This will displace nilfs_mdt_new() constructor with individual
metadata file constructors like nilfs_dat_new(), new_sufile_new(),
nilfs_cpfile_new(), and nilfs_ifile_new().
This makes it possible for each metadata file to have own
intialization code.
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
diff --git a/fs/nilfs2/sufile.c b/fs/nilfs2/sufile.c
index 37994d4..6fb707a 100644
--- a/fs/nilfs2/sufile.c
+++ b/fs/nilfs2/sufile.c
@@ -657,3 +657,19 @@
up_read(&NILFS_MDT(sufile)->mi_sem);
return ret;
}
+
+/**
+ * nilfs_sufile_new - create sufile
+ * @nilfs: nilfs object
+ * @susize: size of a segment usage entry
+ */
+struct inode *nilfs_sufile_new(struct the_nilfs *nilfs, size_t susize)
+{
+ struct inode *sufile;
+
+ sufile = nilfs_mdt_new(nilfs, NULL, NILFS_SUFILE_INO, 0);
+ if (sufile)
+ nilfs_mdt_set_entry_size(sufile, susize,
+ sizeof(struct nilfs_sufile_header));
+ return sufile;
+}