mdadm-1.6.0

[thirdparty/mdadm.git] / Manage.c

diff --git a/Manage.c b/Manage.c
index 34076cbfe63e0d7d13b64b984950902d72e1a2a5..624c775d530d6c0aad6a90810f84af0bf8a6de01 100644 (file)
--- a/Manage.c
+++ b/Manage.c
@@ -114,6 +114,27 @@ int Manage_runstop(char *devname, int fd, int runstop)
        return 0;
 }
 
+int Manage_resize(char *devname, int fd, long long size, int raid_disks)
+{
+       mdu_array_info_t info;
+       if (ioctl(fd, GET_ARRAY_INFO, &info) != 0) {
+               fprintf(stderr, Name ": Cannot get array information for %s: %s\n",
+                       devname, strerror(errno));
+               return 1;
+       }
+       if (size >= 0)
+               info.size = size;
+       if (raid_disks > 0)
+               info.raid_disks = raid_disks;
+       if (ioctl(fd, SET_ARRAY_INFO, &info) != 0) {
+               fprintf(stderr, Name ": Cannot set device size/shape for %s: %s\n",
+                       devname, strerror(errno));
+               return 1;
+       }
+       return 0;
+}
+
+
 int Manage_subdevs(char *devname, int fd,
                   mddev_dev_t devlist)
 {
@@ -177,6 +198,7 @@ int Manage_subdevs(char *devname, int fd,
                         * in case
                         */
                        for (j=0; j<array.nr_disks; j++) {
+                               disc.number = j;
                                if (ioctl(fd, GET_DISK_INFO, &disc))
                                        break;
                                if (disc.major==0 && disc.minor==0)