Damien,

> These patches address potential issues with zone write plugging.
> The first 2 patches fix handling of REQ_NOWAIT BIOs as these can be
> "failed" after going through the zone write plugging and changing the
> target zone plug zone write pointer offset.
>
> Patch 3 is a bigger fix and address a potential deadlock issue due to
> the zone write plugging internally issuing zone report operations to
> recover from write errors. This zone report operation is removed by this
> patch and replaced with an automatic recovery when the BIO issuer
> execute a zone report. This change in behavior results in a problem with
> REQ_OP_WRITE_ZEROES handling and failures in the dm-zoned device mapper.
> That is fixed in patch 4.

Complicated set of fixes but they all look good to me.

Reviewed-by: Martin K. Petersen <martin.peter...@oracle.com>

-- 
Martin K. Petersen      Oracle Linux Engineering

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