[dm-devel] [PATCH 2/9] blk: In elv_abort_queue skip requests with REQ_DONTPREP set
Mike Anderson
andmike at linux.vnet.ibm.com
Tue May 4 17:58:55 UTC 2010
Jens Axboe <jens.axboe at oracle.com> wrote:
> On Mon, May 03 2010, Mike Anderson wrote:
> > Having REQ_DONTPREP set on a request can indicated that resources have been
> > allocated for this request. In elv_abort_queue skip requests with
> > REQ_DONTPREP set to avoid leaking resources.
>
> This also seems weird, are you coding the API backwards from what SCSI
> currently has implemented?
>
Yes I was coding to current SCSI implementation.
> Would seem a lot cleaner to separate dont-prep from already-prepped.
>
I assumed to do this we would need another request flag indicating
??REQ_PREPPED?? that would need to be set in the prep function. Then
this flag would be checked vs REQ_DONTPREP to call the unprep_fn or did you
mean something else?
-andmike
--
Michael Anderson
andmike at linux.vnet.ibm.com
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