From: Tejun Heo <htejun@gmail.com>
To: James.Bottomley@steeleye.com, axboe@suse.de,
Christoph Hellwig <hch@infradead.org>
Cc: linux-scsi@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH scsi-misc-2.6 01/04] scsi: replace REQ_SPECIAL with REQ_SOFTBARRIER in scsi_init_io()
Date: Mon, 11 Apr 2005 12:45:42 +0900 (KST) [thread overview]
Message-ID: <20050411034451.81FB61F1@htj.dyndns.org> (raw)
In-Reply-To: <20050411034451.B75F3870@htj.dyndns.org>
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@gmail.com>
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;
}
next prev parent reply other threads:[~2005-04-11 3:46 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-04-11 3:45 [PATCH scsi-misc-2.6 00/04] scsi: clear REQ_SPECIAL/REQ_SOFTBARRIER usages Tejun Heo
2005-04-11 3:45 ` Tejun Heo [this message]
2005-04-11 3:45 ` [PATCH scsi-misc-2.6 02/04] scsi: make scsi_queue_insert() use blk_requeue_request() Tejun Heo
2005-04-11 3:45 ` [PATCH scsi-misc-2.6 03/04] scsi: make scsi_requeue_request() " Tejun Heo
2005-04-11 12:44 ` Christoph Hellwig
2005-04-12 10:44 ` Tejun Heo
2005-04-11 3:45 ` [PATCH scsi-misc-2.6 04/04] scsi: remove requeue feature from blk_insert_request() Tejun Heo
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