LU-1866 fid: cleanup object visibility definition and check

[fs/lustre-release.git] / lustre / include / lustre_fid.h

diff --git a/lustre/include/lustre_fid.h b/lustre/include/lustre_fid.h
index d469035..2c490f6 100644 (file)
--- a/lustre/include/lustre_fid.h
+++ b/lustre/include/lustre_fid.h
@@ -249,6 +249,18 @@ static inline void lu_local_name_obj_fid(struct lu_fid *fid, __u32 oid)
         fid->f_ver = 0;
 }
 
+static inline int fid_is_root(const struct lu_fid *fid)
+{
+       return unlikely(fid_seq(fid) == FID_SEQ_LOCAL_FILE &&
+                       fid_oid(fid) == MDD_ROOT_INDEX_OID);
+}
+
+static inline int fid_is_dot_lustre(const struct lu_fid *fid)
+{
+       return unlikely(fid_seq(fid) == FID_SEQ_DOT_LUSTRE &&
+                       fid_oid(fid) == FID_OID_DOT_LUSTRE);
+}
+
 static inline int fid_is_otable_it(const struct lu_fid *fid)
 {
        return unlikely(fid_seq(fid) == FID_SEQ_LOCAL_FILE &&
@@ -268,6 +280,22 @@ static inline int fid_is_quota(const struct lu_fid *fid)
               fid_seq(fid) == FID_SEQ_QUOTA_GLB;
 }
 
+static inline int fid_is_client_mdt_visible(const struct lu_fid *fid)
+{
+       const __u64 seq = fid_seq(fid);
+
+       /* Here, we cannot distinguish whether the normal FID is for OST
+        * object or not. It is caller's duty to check more if needed. */
+       return (!fid_is_last_id(fid) &&
+               (fid_seq_is_norm(seq) || fid_seq_is_igif(seq))) ||
+              fid_is_root(fid) || fid_is_dot_lustre(fid);
+}
+
+static inline int fid_is_client_visible(const struct lu_fid *fid)
+{
+       return fid_is_client_mdt_visible(fid) || fid_is_idif(fid);
+}
+
 static inline void lu_last_id_fid(struct lu_fid *fid, __u64 seq)
 {
        if (fid_seq_is_mdt0(seq)) {