util: Introduce md_get_disk_info()

[thirdparty/mdadm.git] / Query.c

diff --git a/Query.c b/Query.c
index d2bfb0524672cacab8ed31add6ca5480afbb376a..a2c839c0588fb956513c48e38b485876ac787aed 100644 (file)
--- a/Query.c
+++ b/Query.c
@@ -1,7 +1,7 @@
 /*
  * mdadm - manage Linux "md" devices aka RAID arrays.
  *
- * Copyright (C) 2002 Neil Brown <neilb@cse.unsw.edu.au>
+ * Copyright (C) 2002-2009 Neil Brown <neilb@suse.de>
  *
  *
  *    This program is free software; you can redistribute it and/or modify
@@ -19,12 +19,7 @@
  *    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  *
  *    Author: Neil Brown
- *    Email: <neilb@cse.unsw.edu.au>
- *    Paper: Neil Brown
- *           School of Computer Science and Engineering
- *           The University of New South Wales
- *           Sydney, 2052
- *           Australia
+ *    Email: <neilb@suse.de>
  */
 
 #include       "mdadm.h"
@@ -34,51 +29,43 @@
 int Query(char *dev)
 {
        /* Give a brief description of the device,
-        * whether it is an md device and whether it has 
+        * whether it is an md device and whether it has
         * a superblock
         */
-       int fd = open(dev, O_RDONLY, 0);
+       int fd = open(dev, O_RDONLY);
        int vers;
        int ioctlerr;
-       int superror, superrno;
+       int superror;
        struct mdinfo info;
        mdu_array_info_t array;
-       void *super;
        struct supertype *st = NULL;
 
        unsigned long long larray_size;
-       unsigned long array_size;
        struct stat stb;
        char *mddev;
        mdu_disk_info_t disc;
        char *activity;
 
        if (fd < 0){
-               fprintf(stderr, Name ": cannot open %s: %s\n",
+               pr_err("cannot open %s: %s\n",
                        dev, strerror(errno));
                return 1;
        }
 
        vers = md_get_version(fd);
-       if (ioctl(fd, GET_ARRAY_INFO, &array)<0)
+       if (md_get_array_info(fd, &array) < 0)
                ioctlerr = errno;
-       else ioctlerr = 0;
- 
+       else
+               ioctlerr = 0;
+
        fstat(fd, &stb);
 
        if (vers>=9000 && !ioctlerr) {
-#ifdef BLKGETSIZE64
-               if (ioctl(fd, BLKGETSIZE64, &larray_size)==0)
-                       ;
-               else
-#endif
-                       if (ioctl(fd, BLKGETSIZE, &array_size)==0) {
-                               larray_size = array_size;
-                               larray_size <<= 9;
-                       } else larray_size = 0;
+               if (!get_dev_size(fd, NULL, &larray_size))
+                       larray_size = 0;
        }
 
-       if (vers < 0) 
+       if (vers < 0)
                printf("%s: is not an md array\n", dev);
        else if (vers < 9000)
                printf("%s: is an md device, but kernel cannot provide details\n", dev);
@@ -90,29 +77,32 @@ int Query(char *dev)
        else {
                printf("%s: %s %s %d devices, %d spare%s. Use mdadm --detail for more detail.\n",
                       dev,
-                      human_size_brief(larray_size),
+                      human_size_brief(larray_size,IEC),
                       map_num(pers, array.level),
                       array.raid_disks,
                       array.spare_disks, array.spare_disks==1?"":"s");
        }
        st = guess_super(fd);
-       if (st) {
-               superror = st->ss->load_super(st, fd, &super, dev);
-               superrno = errno;
-       } else 
+       if (st && st->ss->compare_super != NULL)
+               superror = st->ss->load_super(st, fd, dev);
+       else
                superror = -1;
        close(fd);
        if (superror == 0) {
                /* array might be active... */
-               st->ss->getinfo_super(&info, super);
-               if (st->ss->major == 0) {
-                       mddev = get_md_name(info.array.md_minor);
+               int uuid[4];
+               struct map_ent *me, *map = NULL;
+               st->ss->getinfo_super(st, &info, NULL);
+               st->ss->uuid_from_super(st, uuid);
+               me = map_by_uuid(&map, uuid);
+               if (me) {
+                       mddev = me->path;
                        disc.number = info.disk.number;
                        activity = "undetected";
                        if (mddev && (fd = open(mddev, O_RDONLY))>=0) {
-                               if (md_get_version(fd) >= 9000 &&       
-                                   ioctl(fd, GET_ARRAY_INFO, &array)>= 0) {
-                                       if (ioctl(fd, GET_DISK_INFO, &disc) >= 0 &&
+                               if (md_get_version(fd) >= 9000 &&
+                                   md_get_array_info(fd, &array) >= 0) {
+                                       if (md_get_disk_info(fd, &disc) >= 0 &&
                                            makedev((unsigned)disc.major,(unsigned)disc.minor) == stb.st_rdev)
                                                activity = "active";
                                        else
@@ -121,17 +111,17 @@ int Query(char *dev)
                                close(fd);
                        }
                } else {
-                       activity = "unknown";
+                       activity = "inactive";
                        mddev = "array";
                }
                printf("%s: device %d in %d device %s %s %s.  Use mdadm --examine for more detail.\n",
-                      dev, 
+                      dev,
                       info.disk.number, info.array.raid_disks,
                       activity,
                       map_num(pers, info.array.level),
                       mddev);
+               if (st->ss == &super0)
+                       put_md_name(mddev);
        }
        return 0;
 }
-
-