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From: NeilBrown <neilb@suse.de>
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Date: Fri, 11 Dec 2009 14:27:11 +1100
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Subject: [dm-devel] [PATCH dmraid 1/1] Ensure metadata dump of pdc metadata
	has the correct offset.
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--- dmraid.orig/1.0.0.rc16/lib/format/ataraid/pdc.c
+++ dmraid/1.0.0.rc16/lib/format/ataraid/pdc.c
@@ -202,8 +202,11 @@ pdc_read_metadata(struct lib_context *lc
 							break;
 
 					/* Memorize main metadata sector. */
-					} else if (!info->u32)
+					} else if (!info->u32) {
 						info->u32 = *s;
+						*offset = sub ? di->sectors - *s : *s;
+					}
+
 				}
 			}
 		}