01_scsi_REQ_SPECIAL_semantic_scsi_init_io.patch
scsi_init_io() used to set REQ_SPECIAL when it fails sg
allocation before requeueing the request by returning
BLKPREP_DEFER. REQ_SPECIAL is being updated to mean special
requests and we need to set REQ_SOFTBARRIER for half-prepp'ed
requests. So, replace REQ_SPECIAL with REQ_SOFTBARRIER.
Signed-off-by: Tejun Heo <htejun@xxxxxxxxx>
scsi_lib.c | 2 +-
1 files changed, 1 insertion(+), 1 deletion(-)
Index: scsi-reqfn-export/drivers/scsi/scsi_lib.c
===================================================================
--- scsi-reqfn-export.orig/drivers/scsi/scsi_lib.c 2005-04-11 12:27:07.000000000 +0900
+++ scsi-reqfn-export/drivers/scsi/scsi_lib.c 2005-04-11 12:27:07.000000000 +0900
@@ -936,7 +936,7 @@ static int scsi_init_io(struct scsi_cmnd
*/
sgpnt = scsi_alloc_sgtable(cmd, GFP_ATOMIC);
if (unlikely(!sgpnt)) {
- req->flags |= REQ_SPECIAL;
+ req->flags |= REQ_SOFTBARRIER;
return BLKPREP_DEFER;
}
-
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