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Re: [dm-devel] [PATCH] dm_crypt: Issue all previous bios before remapping barrier bio



On 02/01/2010 04:19 PM, Nikanth Karthikesan wrote:
> Before remapping a barrier bio, make sure that there are no un-issued
> pending I/O in the workqueue. Otherwise a dm_flush would simply add
> a barrier request to the underlying device, without issuing the bio's
> queued in the dm_crypt device.

This should not be needed. Core dm code waits for all bios submitted before
barrier requests.

Mikulas, could you verify it?

Milan


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