X-Git-Url: https://git.whamcloud.com/?a=blobdiff_plain;f=lustre%2Finclude%2Flustre_linkea.h;h=a77f457cb145bb2cec53a31d148763d642aa1a18;hb=90cdf9ddf3edeb5f62ddcc1262808ea7fd7ba257;hp=5790be913bf6582a51c5501941db9c7b5cfa0218;hpb=7e915f5d7177b22bd3cc800137fb505781a2c037;p=fs%2Flustre-release.git

diff --git a/lustre/include/lustre_linkea.h b/lustre/include/lustre_linkea.h
index 5790be9..a77f457 100644
--- a/lustre/include/lustre_linkea.h
+++ b/lustre/include/lustre_linkea.h
@@ -21,12 +21,14 @@
  * GPL HEADER END
  */
 /*
- * Copyright (c) 2013, Intel Corporation.
+ * Copyright (c) 2013, 2014, Intel Corporation.
  * Use is subject to license terms.
  *
  * Author: di wang <di.wang@intel.com>
  */
 
+#define DEFAULT_LINKEA_SIZE	4096
+
 struct linkea_data {
 	/**
 	 * Buffer to keep link EA body.
@@ -44,14 +46,35 @@ int linkea_data_new(struct linkea_data *ldata, struct lu_buf *buf);
 int linkea_init(struct linkea_data *ldata);
 void linkea_entry_unpack(const struct link_ea_entry *lee, int *reclen,
 			 struct lu_name *lname, struct lu_fid *pfid);
+int linkea_entry_pack(struct link_ea_entry *lee, const struct lu_name *lname,
+		      const struct lu_fid *pfid);
 int linkea_add_buf(struct linkea_data *ldata, const struct lu_name *lname,
 		   const struct lu_fid *pfid);
 void linkea_del_buf(struct linkea_data *ldata, const struct lu_name *lname);
 int linkea_links_find(struct linkea_data *ldata, const struct lu_name *lname,
 		      const struct lu_fid  *pfid);
 
-#define LINKEA_NEXT_ENTRY(ldata)	\
-	(struct link_ea_entry *)((char *)ldata.ld_lee + ldata.ld_reclen)
+static inline void linkea_first_entry(struct linkea_data *ldata)
+{
+	LASSERT(ldata != NULL);
+	LASSERT(ldata->ld_leh != NULL);
+
+	if (ldata->ld_leh->leh_reccount == 0)
+		ldata->ld_lee = NULL;
+	else
+		ldata->ld_lee = (struct link_ea_entry *)(ldata->ld_leh + 1);
+}
+
+static inline void linkea_next_entry(struct linkea_data *ldata)
+{
+	LASSERT(ldata != NULL);
+	LASSERT(ldata->ld_leh != NULL);
 
-#define LINKEA_FIRST_ENTRY(ldata)	\
-	(struct link_ea_entry *)(ldata.ld_leh + 1)
+	if (ldata->ld_lee != NULL) {
+		ldata->ld_lee = (struct link_ea_entry *)((char *)ldata->ld_lee +
+							 ldata->ld_reclen);
+		if ((char *)ldata->ld_lee >= ((char *)ldata->ld_leh +
+					      ldata->ld_leh->leh_len))
+			ldata->ld_lee = NULL;
+	}
+}