From: James Bottomley <James.Bottomley@HansenPartnership.com>
To: Jeff Garzik <jeff@garzik.org>
Cc: Tejun Heo <htejun@gmail.com>, Jens Axboe <Jens.Axboe@oracle.com>,
FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>,
linux-scsi <linux-scsi@vger.kernel.org>,
linux-ide <linux-ide@vger.kernel.org>
Subject: [PATCH 2/3] block: add blk_rq_drain_size() API
Date: Mon, 04 Feb 2008 10:40:04 -0600 [thread overview]
Message-ID: <1202143204.3096.31.camel@localhost.localdomain> (raw)
In-Reply-To: <1202142930.3096.29.camel@localhost.localdomain>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
---
include/linux/blkdev.h | 5 +++++
1 files changed, 5 insertions(+), 0 deletions(-)
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index 90392a9..a526066 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -676,6 +676,11 @@ extern void blk_complete_request(struct request *);
extern unsigned int blk_rq_bytes(struct request *rq);
extern unsigned int blk_rq_cur_bytes(struct request *rq);
+static inline int blk_rq_drain_size(struct request *rq)
+{
+ return rq->q->dma_drain_size;
+}
+
static inline void blkdev_dequeue_request(struct request *req)
{
elv_dequeue_request(req->q, req);
--
1.5.3.8
next prev parent reply other threads:[~2008-02-04 16:40 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-02-04 16:35 [PATCH 1/3] libata: eliminate the home grown dma padding in favour of that provided by the block layer James Bottomley
2008-02-04 16:40 ` James Bottomley [this message]
2008-02-04 16:42 ` [PATCH 3/3] libata: implement drain buffers James Bottomley
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