[PATCH] dm snapshot: allow zero chunk_size

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The chunk size of snapshots cannot be changed so it is redundant to require it
as a parameter when activating an existing snapshot.  Allow a value of zero in
this case and ignore it.  For a new snapshot, use a default value if zero is
specified.

Signed-off-by: Mark McLoughlin <markmc@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

...

This commit is contained in:

Mark McLoughlin 2006-10-03 01:15:25 -07:00 • committed by Linus Torvalds

parent 92c060a692

commit 4c7e3bf44d

3 changed files with 120 additions and 99 deletions

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128

drivers/md/dm-exception-store.c

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90

drivers/md/dm-snap.c

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5

drivers/md/dm-snap.h

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