[dm-devel] [PATCH 0/2] Add suspended state check for target messages

Kiyoshi Ueda k-ueda at ct.jp.nec.com
Mon Nov 16 07:25:26 UTC 2009


Hi Alasdair,

On 11/13/2009 11:19 PM +0900, Alasdair G Kergon wrote:
> Would DMF_BLOCK_IO_FOR_SUSPEND work instead?

Maybe.
But we must remember that using the flag means that multipath can't
use message during flushing I/Os, although I'm not sure how it hurts us.

If we'd like to keep the ability to use message during flushing I/Os,
we should use another flag for this purpose and set it after
dm_wait_for_completion().

Thanks,
Kiyoshi Ueda




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