* question: deleting blocks
@ 2011-08-15 18:27 Mikulas Patocka
2011-08-16 9:28 ` Joe Thornber
0 siblings, 1 reply; 2+ messages in thread
From: Mikulas Patocka @ 2011-08-15 18:27 UTC (permalink / raw)
To: Edward Thornber; +Cc: dm-devel
BTW.
When you delete a block in the space map, how do you make sure that the
block is not allocated for another purpose before commit?
Mikulas
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: question: deleting blocks
2011-08-15 18:27 question: deleting blocks Mikulas Patocka
@ 2011-08-16 9:28 ` Joe Thornber
0 siblings, 0 replies; 2+ messages in thread
From: Joe Thornber @ 2011-08-16 9:28 UTC (permalink / raw)
To: Mikulas Patocka; +Cc: dm-devel
On Mon, Aug 15, 2011 at 02:27:56PM -0400, Mikulas Patocka wrote:
> BTW.
>
> When you delete a block in the space map, how do you make sure that the
> block is not allocated for another purpose before commit?
For the metadata-space-map I allocate from the space map as it was in
the last transaction (smm->old_ll). The data space map needs to do
the same (for some reason I thought we could get away without it for a
while) - it's on the todo list in multisnap.org and was mentioned
yesterday.
- Joe
^ permalink raw reply [flat|nested] 2+ messages in thread
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2011-08-15 18:27 question: deleting blocks Mikulas Patocka
2011-08-16 9:28 ` Joe Thornber
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