svn commit: r254642 - stable/8/sys/geom/part

[Andrey V. Elsukov]

Author: ae
Date: Thu Aug 22 06:24:02 2013
New Revision: 254642
URL: http://svnweb.freebsd.org/changeset/base/254642

Log:
  MFC r254095:
    gpt_entries is used as limit for the number of partition entries in
    the GEOM_PART. Instead of just using number of entries from the GPT
    header, calculate this limit based on the reserved space between
    GPT header and first available LBA.

Modified:
  stable/8/sys/geom/part/g_part_gpt.c
Directory Properties:
  stable/8/sys/   (props changed)
  stable/8/sys/geom/   (props changed)

Modified: stable/8/sys/geom/part/g_part_gpt.c
==============================================================================
--- stable/8/sys/geom/part/g_part_gpt.c	Thu Aug 22 06:20:25 2013	(r254641)
+++ stable/8/sys/geom/part/g_part_gpt.c	Thu Aug 22 06:24:02 2013	(r254642)
@@ -793,9 +793,10 @@ g_part_gpt_read(struct g_part_table *bas
 
 	basetable->gpt_first = table->hdr->hdr_lba_start;
 	basetable->gpt_last = table->hdr->hdr_lba_end;
-	basetable->gpt_entries = table->hdr->hdr_entries;
+	basetable->gpt_entries = (table->hdr->hdr_lba_start - 2) *
+	    pp->sectorsize / table->hdr->hdr_entsz;
 
-	for (index = basetable->gpt_entries - 1; index >= 0; index--) {
+	for (index = table->hdr->hdr_entries - 1; index >= 0; index--) {
 		if (EQUUID(&tbl[index].ent_type, &gpt_uuid_unused))
 			continue;
 		entry = (struct g_part_gpt_entry *)g_part_new_entry(