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md: Disable bad blocks and v0.90 metadata.

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v0.90 metadata cannot record bad blocks, so when loading metadata
for such a device, set shift to -1.

Signed-off-by: NeilBrown <neilb@suse.de>
This commit is contained in:
NeilBrown 2011-07-28 11:31:47 +10:00
parent 2699b67223
commit 9f2f383078
1 changed files with 4 additions and 0 deletions
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4
drivers/md/md.c
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@ -1058,6 +1058,7 @@ static int super_90_load(mdk_rdev_t *rdev, mdk_rdev_t *refdev, int minor_version
rdev->preferred_minor = sb->md_minor;
rdev->data_offset = 0;
rdev->sb_size = MD_SB_BYTES;
rdev->badblocks.shift = -1;
if (sb->level == LEVEL_MULTIPATH)
rdev->desc_nr = -1;
@ -3004,6 +3005,9 @@ static mdk_rdev_t *md_import_device(dev_t newdev, int super_format, int super_mi
goto abort_free;
}
}
if (super_format == -1)
/* hot-add for 0.90, or non-persistent: so no badblocks */
rdev->badblocks.shift = -1;
return rdev;