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Re: [dm-devel] Should enhanced bio error state be propagated upwards to parent o f failed cloned bios?



On 2005-04-25T11:34:32, "goggin, edward" <egoggin emc com> wrote:

> Should the bi_error field of a failed bio clone completion be propagated
> upwards into the parent of the cloned bio, possibly in dec_pending() of
> dm.c?  Doing so will allow target drivers higher than the one managing
> the bottom-most mapped device to have access to enhanced bio sense
> and error information.  Otherwise, all they see is -EIO like now.

Probably yes. Good point.

Right now only dm-mpath knows about them of course, and we're very
likely to be the lowest mapped device in the stack. But propagating the
error upward might make sense.


Sincerely,
    Lars Marowsky-Brée <lmb suse de>

-- 
High Availability & Clustering
SUSE Labs, Research and Development
SUSE LINUX Products GmbH - A Novell Business


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