189dd63981
Backport patches for supporting intel vroc raid device. Commit 23774f997ea077f2cbe8a32bd8bccdd7f4560cca (devices: detect md ddf and imsm superblocks) Commit 00c9a788cc617e5e40746dee2e17287d61ee5c81 (devices: simplify md superblock checking code) Commit 7880896f0dbe730e7b47aa8040544434813eacc4 (gcc: calc size in compile time) Commit 12667e9897ad54f5723463b4c864c8259ba0be2a (fix check for md raid imsm signature on 4k devices) Commit 6a099707c433f0b3f2644c52f7773751832693a4 (clang: remove unused assignment) Otherwise, create vg on a intel vroc raid will produce below error: /* command begin */ $ pvcreate /dev/md0 $ vgcreate testvg /dev/md0 Cannot use device /dev/md0 with duplicates. /* command end */ Signed-off-by: Xiaole He <hexiaole@kylinos.cn>