sysfs: allow sysfs_read to detect and drop removed disks

[thirdparty/mdadm.git] / mdadm.h

diff --git a/mdadm.h b/mdadm.h
index 5be3affe073a9c2e425c1116543bd6c86d9d12fa..f8f3685963ecc980967457213ee795b15a434709 100644 (file)
--- a/mdadm.h
+++ b/mdadm.h
@@ -334,22 +334,24 @@ extern int map_lock(struct map_ent **melp);
 extern void map_unlock(struct map_ent **melp);
 
 /* various details can be requested */
-#define        GET_LEVEL       1
-#define        GET_LAYOUT      2
-#define        GET_COMPONENT   4
-#define        GET_CHUNK       8
-#define GET_CACHE      16
-#define        GET_MISMATCH    32
-#define        GET_VERSION     64
-#define        GET_DISKS       128
-#define        GET_DEGRADED    256
-#define        GET_SAFEMODE    512
-
-#define        GET_DEVS        1024 /* gets role, major, minor */
-#define        GET_OFFSET      2048
-#define        GET_SIZE        4096
-#define        GET_STATE       8192
-#define        GET_ERROR       16384
+enum sysfs_read_flags {
+       GET_LEVEL       = (1 << 0),
+       GET_LAYOUT      = (1 << 1),
+       GET_COMPONENT   = (1 << 2),
+       GET_CHUNK       = (1 << 3),
+       GET_CACHE       = (1 << 4),
+       GET_MISMATCH    = (1 << 5),
+       GET_VERSION     = (1 << 6),
+       GET_DISKS       = (1 << 7),
+       GET_DEGRADED    = (1 << 8),
+       GET_SAFEMODE    = (1 << 9),
+       GET_DEVS        = (1 << 10), /* gets role, major, minor */
+       GET_OFFSET      = (1 << 11),
+       GET_SIZE        = (1 << 12),
+       GET_STATE       = (1 << 13),
+       GET_ERROR       = (1 << 14),
+       SKIP_GONE_DEVS  = (1 << 15),
+};
 
 /* If fd >= 0, get the array it is open on,
  * else use devnum. >=0 -> major9. <0.....