LU-1842 quota: add quota disk operations

[fs/lustre-release.git] / lustre / quota / lquota_lib.c

diff --git a/lustre/quota/lquota_lib.c b/lustre/quota/lquota_lib.c
index 5278818..9d51049 100644 (file)
--- a/lustre/quota/lquota_lib.c
+++ b/lustre/quota/lquota_lib.c
@@ -280,6 +280,49 @@ int lquota_extract_fid(struct lu_fid *fid, int *pool_id, int *pool_type,
        RETURN(0);
 }
 
+#if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2,7,50,0)
+/* Index features supported by the global index objects.
+ * We actually use one dt_index_features structure for each quota combination
+ * of quota type x [inode, block] to allow the ldiskfs OSD to recognize those
+ * objects and to handle the conversion from the old administrative quota file
+ * format */
+struct dt_index_features dt_quota_iusr_features;
+EXPORT_SYMBOL(dt_quota_iusr_features);
+struct dt_index_features dt_quota_busr_features;
+EXPORT_SYMBOL(dt_quota_busr_features);
+struct dt_index_features dt_quota_igrp_features;
+EXPORT_SYMBOL(dt_quota_igrp_features);
+struct dt_index_features dt_quota_bgrp_features;
+EXPORT_SYMBOL(dt_quota_bgrp_features);
+
+/**
+ * Helper routine returning the right index feature structure to be used
+ * depending on the FID of the global index.
+ */
+const struct dt_index_features *glb_idx_feature(struct lu_fid *fid)
+{
+       int     res_type, quota_type, rc;
+
+       rc = lquota_extract_fid(fid, NULL, &res_type, &quota_type);
+       if (rc)
+               return ERR_PTR(rc);
+
+       if (quota_type == USRQUOTA) {
+               if (res_type == LQUOTA_RES_MD)
+                       return &dt_quota_iusr_features;
+               else
+                       return &dt_quota_busr_features;
+       } else {
+               if (res_type == LQUOTA_RES_MD)
+                       return &dt_quota_igrp_features;
+               else
+                       return &dt_quota_bgrp_features;
+       }
+}
+#else
+#warning "remove old quota compatibility code"
+#endif
+
 static int __init init_lquota(void)
 {
        int     rc;
@@ -293,6 +336,13 @@ static int __init init_lquota(void)
        lquota_key_init_generic(&lquota_thread_key, NULL);
        lu_context_key_register(&lquota_thread_key);
 
+#if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2,7,50,0)
+       dt_quota_iusr_features = dt_quota_busr_features = dt_quota_glb_features;
+       dt_quota_igrp_features = dt_quota_bgrp_features = dt_quota_glb_features;
+#else
+#warning "remove old quota compatibility code"
+#endif
+
        return 0;
 }