md/raid1: avoid reading from known bad blocks.

[pandora-kernel.git] / drivers / md / raid1.h

diff --git a/drivers/md/raid1.h b/drivers/md/raid1.h
index 3cd18cf..aa6af37 100644 (file)
--- a/drivers/md/raid1.h
+++ b/drivers/md/raid1.h
@@ -123,6 +123,10 @@ struct r1bio_s {
 #define        R1BIO_IsSync    1
 #define        R1BIO_Degraded  2
 #define        R1BIO_BehindIO  3
+/* Set ReadError on bios that experience a readerror so that
+ * raid1d knows what to do with them.
+ */
+#define R1BIO_ReadError 4
 /* For write-behind requests, we call bi_end_io when
  * the last non-write-behind device completes, providing
  * any write was successful.  Otherwise we call when