dm era: Verify the data block size hasn't changed

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commit c8e846ff93 upstream.

dm-era doesn't support changing the data block size of existing devices,
so check explicitly that the requested block size for a new target
matches the one stored in the metadata.

Fixes: eec40579d8 ("dm: add era target")
Cc: stable@vger.kernel.org # v3.15+
Signed-off-by: Nikos Tsironis <ntsironis@arrikto.com>
Reviewed-by: Ming-Hung Tsai <mtsai@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

...

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Nikos Tsironis 2021-01-22 17:25:53 +02:00 • committed by Greg Kroah-Hartman

parent e6039db4f1

commit ede8948836

1 changed files with 9 additions and 1 deletions

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drivers/md/dm-era-target.c

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