File 0001-DDF-_write_super_to_disk-fix-anchor-header... of Package mdadm.1500

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File 0001-DDF-_write_super_to_disk-fix-anchor-header-type.patch of Package mdadm.1500

Commit: b87fdf4e891093e4a98f724d4a5f013fcaa94168
From: Martin Wilck <martin.wilck@ts.fujitsu.com>
Date: Mon, 11 May 2015 16:09:44 +0200
Subject: [PATCH] DDF: _write_super_to_disk: fix anchor header type
References: bsc#930417

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>
---
 super-ddf.c |    1 +
 1 file changed, 1 insertion(+)

--- a/super-ddf.c
+++ b/super-ddf.c
@@ -3171,6 +3171,7 @@ static int _write_super_to_disk(struct 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);

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File 0001-DDF-_write_super_to_disk-fix-anchor-header-type.patch of Package mdadm.1500

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