Re: [Xen-devel] [PATCH 17/33] xen/scsiback: Make TMF processing slightly faster

["Nicholas A. Bellinger" <nab@xxxxxxxxxxxxxxx>]

On Tue, 2017-05-23 at 16:48 -0700, Bart Van Assche wrote:
> Target drivers must guarantee that struct se_cmd and struct se_tmr_req
> exist as long as target_tmr_work() is in progress. Since the last
> access by the LIO core is a call to .check_stop_free() and since the
> Xen scsiback .check_stop_free() drops a reference to the TMF, it is
> already guaranteed that the struct se_cmd that corresponds to the TMF
> exists as long as target_tmr_work() is in progress. Hence change the
> second argument of transport_generic_free_cmd() from 1 into 0.
> 
> Signed-off-by: Bart Van Assche <bart.vanassche@xxxxxxxxxxx>
> Cc: Juergen Gross <jgross@xxxxxxxx>
> Cc: Christoph Hellwig <hch@xxxxxx>
> Cc: Hannes Reinecke <hare@xxxxxxxx>
> Cc: David Disseldorp <ddiss@xxxxxxx>
> Cc: xen-devel@xxxxxxxxxxxxxxxxxxxx
> ---
>  drivers/xen/xen-scsiback.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)

Applied.


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