imsm: Remove --dump/--restore implementation master
authorBlazej Kucman <blazej.kucman@intel.com>
Wed, 19 Feb 2020 10:13:17 +0000 (11:13 +0100)
committerJes Sorensen <jsorensen@fb.com>
Mon, 24 Feb 2020 21:18:35 +0000 (16:18 -0500)
Functionalities --dump and --restore are not supported.
Remove dead code from imsm.

Signed-off-by: Blazej Kucman <blazej.kucman@intel.com>
Signed-off-by: Jes Sorensen <jsorensen@fb.com>
super-intel.c

index e4d2122..c9a1af5 100644 (file)
@@ -2128,61 +2128,6 @@ static void export_examine_super_imsm(struct supertype *st)
        printf("MD_DEVICES=%u\n", mpb->num_disks);
 }
 
-static int copy_metadata_imsm(struct supertype *st, int from, int to)
-{
-       /* The second last sector of the device contains
-        * the "struct imsm_super" metadata.
-        * This contains mpb_size which is the size in bytes of the
-        * extended metadata.  This is located immediately before
-        * the imsm_super.
-        * We want to read all that, plus the last sector which
-        * may contain a migration record, and write it all
-        * to the target.
-        */
-       void *buf;
-       unsigned long long dsize, offset;
-       int sectors;
-       struct imsm_super *sb;
-       struct intel_super *super = st->sb;
-       unsigned int sector_size = super->sector_size;
-       unsigned int written = 0;
-
-       if (posix_memalign(&buf, MAX_SECTOR_SIZE, MAX_SECTOR_SIZE) != 0)
-               return 1;
-
-       if (!get_dev_size(from, NULL, &dsize))
-               goto err;
-
-       if (lseek64(from, dsize-(2*sector_size), 0) < 0)
-               goto err;
-       if ((unsigned int)read(from, buf, sector_size) != sector_size)
-               goto err;
-       sb = buf;
-       if (strncmp((char*)sb->sig, MPB_SIGNATURE, MPB_SIG_LEN) != 0)
-               goto err;
-
-       sectors = mpb_sectors(sb, sector_size) + 2;
-       offset = dsize - sectors * sector_size;
-       if (lseek64(from, offset, 0) < 0 ||
-           lseek64(to, offset, 0) < 0)
-               goto err;
-       while (written < sectors * sector_size) {
-               int n = sectors*sector_size - written;
-               if (n > 4096)
-                       n = 4096;
-               if (read(from, buf, n) != n)
-                       goto err;
-               if (write(to, buf, n) != n)
-                       goto err;
-               written += n;
-       }
-       free(buf);
-       return 0;
-err:
-       free(buf);
-       return 1;
-}
-
 static void detail_super_imsm(struct supertype *st, char *homehost,
                              char *subarray)
 {
@@ -12270,7 +12215,6 @@ struct superswitch super_imsm = {
        .reshape_super  = imsm_reshape_super,
        .manage_reshape = imsm_manage_reshape,
        .recover_backup = recover_backup_imsm,
-       .copy_metadata = copy_metadata_imsm,
        .examine_badblocks = examine_badblocks_imsm,
        .match_home     = match_home_imsm,
        .uuid_from_super= uuid_from_super_imsm,