sysfs: add sysfs_open_memb_attr()

Function is added to not repeat defining "dev-%s", disk_name.
Related code branches are updated. Ioctl way for setting disk
faulty/remove is removed, sysfs is always used now.

Some non functional style issues are fixed in Manage_subdevs().

Signed-off-by: Mariusz Tkaczyk <mariusz.tkaczyk@linux.intel.com>

1 files changed, 2 insertions, 3 deletions

diff --git a/mdadm.h b/mdadm.h
index 5781948e..c841f33e 100644
--- a/mdadm.h
+++ b/mdadm.h
@@ -803,13 +803,12 @@ extern mdadm_status_t sysfs_write_descriptor(const int fd, const char *value,
 extern mdadm_status_t write_attr(const char *value, const int fd);
 extern void sysfs_get_container_devnm(struct mdinfo *mdi, char *buf);
 
-/* If fd >= 0, get the array it is open on,
- * else use devnm.
- */
 extern int sysfs_open(char *devnm, char *devname, char *attr);
+extern int sysfs_open_memb_attr(char *array_devnm, char *memb_devnm, char *attr, int oflag);
 extern int sysfs_init(struct mdinfo *mdi, int fd, char *devnm);
 extern void sysfs_init_dev(struct mdinfo *mdi, dev_t devid);
 extern void sysfs_free(struct mdinfo *sra);
+
 extern struct mdinfo *sysfs_read(int fd, char *devnm, unsigned long options);
 extern int sysfs_attr_match(const char *attr, const char *str);
 extern int sysfs_match_word(const char *word, char **list);