LU-5223 lmv: build master LMV EA dynamically build via readdir

[fs/lustre-release.git] / lustre / osp / osp_md_object.c

diff --git a/lustre/osp/osp_md_object.c b/lustre/osp/osp_md_object.c
index 26f8e32..d84a259 100644 (file)
--- a/lustre/osp/osp_md_object.c
+++ b/lustre/osp/osp_md_object.c
@@ -515,14 +515,18 @@ again:
 static struct dt_key *osp_it_key(const struct lu_env *env,
                                 const struct dt_it *di)
 {
-       LBUG();
-       return NULL;
+       struct osp_it           *it = (struct osp_it *)di;
+       struct lu_dirent        *ent = (struct lu_dirent *)it->ooi_ent;
+
+       return (struct dt_key *)ent->lde_name;
 }
 
 static int osp_it_key_size(const struct lu_env *env, const struct dt_it *di)
 {
-       LBUG();
-       return 0;
+       struct osp_it           *it = (struct osp_it *)di;
+       struct lu_dirent        *ent = (struct lu_dirent *)it->ooi_ent;
+
+       return (int)le16_to_cpu(ent->lde_namelen);
 }
 
 static int osp_md_index_it_rec(const struct lu_env *env, const struct dt_it *di,
@@ -532,16 +536,38 @@ static int osp_md_index_it_rec(const struct lu_env *env, const struct dt_it *di,
        struct lu_dirent        *ent = (struct lu_dirent *)it->ooi_ent;
        int                     reclen;
 
-       reclen = lu_dirent_calc_size(ent->lde_namelen, attr);
+       reclen = lu_dirent_calc_size(le16_to_cpu(ent->lde_namelen), attr);
        memcpy(rec, ent, reclen);
        return 0;
 }
 
+/**
+ * Locate the iteration cursor to the specified position (cookie).
+ *
+ * \param[in] env      pointer to the thread context
+ * \param[in] di       pointer to the iteration structure
+ * \param[in] hash     the specified position
+ *
+ * \retval             positive number for locating to the exactly position
+ *                     or the next
+ * \retval             0 for arriving at the end of the iteration
+ * \retval             negative error number on failure
+ */
 static int osp_it_load(const struct lu_env *env, const struct dt_it *di,
                       __u64 hash)
 {
-       LBUG();
-       return 0;
+       struct osp_it   *it     = (struct osp_it *)di;
+       int              rc;
+
+       it->ooi_next = hash;
+       rc = osp_md_index_it_next(env, (struct dt_it *)di);
+       if (rc == 1)
+               return 0;
+
+       if (rc == 0)
+               return 1;
+
+       return rc;
 }
 
 const struct dt_index_operations osp_md_index_ops = {