md: Increment version for clustered bitmaps

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Add BITMAP_MAJOR_CLUSTERED as 5, in order to prevent older kernels
to assemble a clustered device.

In order to maximize compatibility, the major version is set to
BITMAP_MAJOR_CLUSTERED *only* if the bitmap is clustered.

Added MD_FEATURE_CLUSTERED in order to return error for older
kernels which would assemble MD even if the bitmap is corrupted.

Signed-off-by: Goldwyn Rodrigues <rgoldwyn@suse.com>
Signed-off-by: NeilBrown <neilb@suse.com>

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Goldwyn Rodrigues 2015-08-19 07:35:54 +10:00

parent 9ed38ff530

commit 3c462c880b

4 changed files with 11 additions and 6 deletions

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include/uapi/linux/raid/md_p.h

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