util: split get_maj_min() out from dev_open()

This allows other code to parse "8:3" style device names.

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

1 files changed, 1 insertions, 0 deletions

diff --git a/mdadm.h b/mdadm.h
index dc3c107d..fc1fd318 100644
--- a/mdadm.h
+++ b/mdadm.h
@@ -1283,6 +1283,7 @@ extern int check_partitions(int fd, char *dname,
 			    unsigned long long size);
 
 extern int get_mdp_major(void);
+extern int get_maj_min(char *dev, int *major, int *minor);
 extern int dev_open(char *dev, int flags);
 extern int open_dev(char *devnm);
 extern void reopen_mddev(int mdfd);