Re: [PATCH] ibmvscsis: Initial IBM vSCSI Target merge for v3.2-rc1

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On Tue, 2011-10-18 at 11:08 +0200, Christoph Hellwig wrote:
> This needs a patch like the one below folded in.  In addition to not
> unessecarily offload new command mapping to the fabric thread this
> also fixes the currenly incorrect (outdated) handling of the return
> values from transport_generic_allocate_tasks.  I don't even have
> a ppc compiler at hand right now, so handle it with care.
> 
> ---
> From: Christoph Hellwig <hch@xxxxxx>
> Subject: ibmvscsis: do not offload new command processing to the fabric thread
> 
> tcm_queuecommand is always called from process context, so prepare the command
> in-process instead of offloading it.
> 
> Signed-off-by: Christoph Hellwig <hch@xxxxxx>

Hi Christoph,

Fixed some minor compile breakage with this patch.  Aside from that, I
think it looks like a reasonably safe conversion to perform the
necessary setup in tcm_queuecommand() process context instead of the
extra context switch into transport_generic_handle_cdb_map().

I've not heard Tomo-san or BR-King feedback on this for a v3.2 merge
yet, but will respin with this change included for them to review again
for next week.

Thanks,

--nab

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