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| author | Martin Wilck <martin.wilck@ts.fujitsu.com> | 2015-05-11 16:09:44 +0200 |
|---|---|---|
| committer | NeilBrown <neilb@suse.de> | 2015-05-13 02:33:35 +0200 |
| commit | b87fdf4e891093e4a98f724d4a5f013fcaa94168 (patch) | |
| tree | 139b07c45d77d27971ff7987ae03e052325f03fe /super-ddf.c | |
| parent | tests: never fail if --wait fails. (diff) | |
| download | mdadm-b87fdf4e891093e4a98f724d4a5f013fcaa94168.tar.xz mdadm-b87fdf4e891093e4a98f724d4a5f013fcaa94168.zip | |
DDF: _write_super_to_disk: fix anchor header type
Since commit 30bee0201, the anchor is updated from the active
DDF header. This requires fixing the header type before the
anchor is written.
The LSI Software RAID code will reject DDF meta data with wrong
anchor type and will erase all meta data when it encounters
such a broken anchor. Thus starting Linux md once on a system
with LSI RAID BIOS may cause the meta data to get destroyed.
Signed-off-by: NeilBrown <neilb@suse.de>
Diffstat (limited to 'super-ddf.c')
| -rw-r--r-- | super-ddf.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/super-ddf.c b/super-ddf.c index d0b2ac71..faaf0a7c 100644 --- a/super-ddf.c +++ b/super-ddf.c @@ -3158,6 +3158,7 @@ static int _write_super_to_disk(struct ddf_super *ddf, struct dl *d) memcpy(&ddf->primary, &ddf->anchor, 512); memcpy(&ddf->secondary, &ddf->anchor, 512); + ddf->anchor.type = DDF_HEADER_ANCHOR; ddf->anchor.openflag = 0xFF; /* 'open' means nothing */ ddf->anchor.seq = cpu_to_be32(0xFFFFFFFF); /* no sequencing in anchor */ ddf->anchor.crc = calc_crc(&ddf->anchor, 512); |