[PATCH] cciss: new disk register/deregister routines
This patch removes a couple of functions dealing with configuration and
replaces them with new functions. This implementation fixes some bugs
associated with the ACUXE. It also allows a logical volume to be removed from
the middle without deleting all volumes behind it.
If a user has 5 logical volumes and decides he wants to reconfigure volume
number 3, he can now do that without removing volumes 4 & 5 first. This code
has been tested in our labs against all application software.
Signed-off-by: Chase Maupin <chase.maupin@hp.com>
Signed-off-by: Mike Miller <mike.miller@hp.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/drivers/block/cciss.h b/drivers/block/cciss.h
index 11ee835..dec27a9 100644
--- a/drivers/block/cciss.h
+++ b/drivers/block/cciss.h
@@ -35,7 +35,13 @@
int heads;
int sectors;
int cylinders;
- int raid_level;
+ int raid_level; /* set to -1 to indicate that
+ * the drive is not in use/configured
+ */
+ int busy_configuring; /*This is set when the drive is being removed
+ *to prevent it from being opened or it's queue
+ *from being started.
+ */
} drive_info_struct;
struct ctlr_info