* SCSI partial completions?
@ 2003-05-08 23:57 Jeff Garzik
2003-05-09 5:11 ` Patrick Mansfield
0 siblings, 1 reply; 2+ messages in thread
From: Jeff Garzik @ 2003-05-08 23:57 UTC (permalink / raw)
To: linux-scsi
I could have sworn I saw some code in drivers/scsi/scsi*.c that implied
partial completions were supported.
Let's imagine that I receive a Scsi_Cmnd that wants to write N sectors.
Time passes, my error handler kicks in, and I realize that I was only
able to write N/2 sectors.
How do I tell the SCSI layer that N/2 sectors were written successfully?
Thanks,
Jeff
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: SCSI partial completions?
2003-05-08 23:57 SCSI partial completions? Jeff Garzik
@ 2003-05-09 5:11 ` Patrick Mansfield
0 siblings, 0 replies; 2+ messages in thread
From: Patrick Mansfield @ 2003-05-09 5:11 UTC (permalink / raw)
To: Jeff Garzik; +Cc: linux-scsi
On Thu, May 08, 2003 at 07:57:28PM -0400, Jeff Garzik wrote:
> I could have sworn I saw some code in drivers/scsi/scsi*.c that implied
> partial completions were supported.
>
> Let's imagine that I receive a Scsi_Cmnd that wants to write N sectors.
> Time passes, my error handler kicks in, and I realize that I was only
> able to write N/2 sectors.
>
> How do I tell the SCSI layer that N/2 sectors were written successfully?
>
> Thanks,
>
> Jeff
Like the sd.c code for handling MEDIUM_ERROR? And corresponding code in
scsi_io_completion, where we call scsi_end_request() with requeue (the last
argument) set to 1.
-- Patrick Mansfield
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