This patch prevents mdadm from updating metadata if migration is
not possible. The same check is done in analyse_change(),
but in that place - metadata is already modified.
Signed-off-by: Pawel Baldysiak <pawel.baldysiak@xxxxxxxxx>
---
super-intel.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/super-intel.c b/super-intel.c
index 0407d43..5e58672 100644
--- a/super-intel.c
+++ b/super-intel.c
@@ -10808,6 +10808,11 @@ enum imsm_reshape_type imsm_analyze_change(struct supertype *st,
pr_err("Error. Chunk size change for RAID 10 is not supported.\n");
change = -1;
goto analyse_change_exit;
+ } else if (info.component_size % (geo->chunksize/512)) {
+ pr_err("New chunk size (%dK) does not evenly divide device size (%lluk). Aborting...\n",
+ geo->chunksize/1024, info.component_size/2);
+ change = -1;
+ goto analyse_change_exit;
}
change = CH_MIGRATION;
} else {
--
2.9.3
--
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