Re: regression: CD burning (k3b) went broke

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On Wed, 2008-02-27 at 07:00 +0100, Mike Galbraith wrote:

> (patchlet takes wing, and... goes splat?)

Bugger, went splat... forgot preformat for patchlet insert.  <quiltuple
checks>
 
Fix CD burning regression introduced by
6b00769fe1502b4ad97bb327ef7ac971b208bfb5.  raw_data_len must be updated
to reflect residual data upon IO completion because it is used by
blk_complete_sghdr_rq() to set hdr->resid which eventually becomes
visible to userland.

Signed-off-by: Mike Galbraith <efault@xxxxxx>

diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c
index ba21d97..7a6f784 100644
--- a/drivers/scsi/scsi_lib.c
+++ b/drivers/scsi/scsi_lib.c
@@ -871,7 +871,7 @@ void scsi_io_completion(struct scsi_cmnd *cmd, unsigned int good_bytes)
 			scsi_end_bidi_request(cmd);
 			return;
 		}
-		req->data_len = scsi_get_resid(cmd);
+		req->data_len = req->raw_data_len = scsi_get_resid(cmd);
 	}
 
 	BUG_ON(blk_bidi_rq(req)); /* bidi not support for !blk_pc_request yet */


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