Fail safely when trying to grow an array with a write-intent bitmap.

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We cannot currently change the size of a write-intent bitmap.
So if we change the size of an array which has such a bitmap, it
tries to set bits beyond the end of the bitmap.

For now, simply reject any request to change the size of an array
which has a bitmap.  mdadm can remove the bitmap and add a new one
after the array has changed size.

Signed-off-by: NeilBrown <neilb@suse.de>

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This commit is contained in:

NeilBrown 2008-08-05 15:54:13 +10:00

parent 2b25000bf5

commit dba034eef2

2 changed files with 8 additions and 0 deletions

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5

drivers/md/md.c

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3

drivers/md/raid5.c

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