Discard devnum in favour of devnm

We widely use a "devnum" which is 0 or +ve for md%d devices
and -ve for md_d%d devices.
But I want to be able to use md_%s device names.

So get rid of devnum (a number) and use devnm (a 32char string).
eg.
  md0
  md_d2
  md_home

Signed-off-by: NeilBrown <neilb@suse.de>

1 files changed, 0 insertions, 2 deletions

diff --git a/mdmon.h b/mdmon.h
index 59e1b537..21cf71d5 100644
--- a/mdmon.h
+++ b/mdmon.h
@@ -48,8 +48,6 @@ struct active_array {
 
 	int check_degraded; /* flag set by mon, read by manage */
 	int check_reshape; /* flag set by mon, read by manage */
-
-	int devnum;
 };
 
 /*