linux-kernel - [PATCH] tcm/pscsi: Convert struct bio->bi_rw assignment to use REQ

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Message-Id: <1283127978-13861-1-git-send-email-nab@linux-iscsi.org>
Date:	Sun, 29 Aug 2010 17:26:18 -0700
From:	"Nicholas A. Bellinger" <nab@...ux-iscsi.org>
To:	linux-scsi <linux-scsi@...r.kernel.org>,
	linux-kernel <linux-kernel@...r.kernel.org>
Cc:	Christoph Hellwig <hch@....de>, Tejun Heo <teheo@...e.de>,
	Nicholas Bellinger <nab@...ux-iscsi.org>
Subject: [PATCH] tcm/pscsi: Convert struct bio->bi_rw assignment to use REQ_WRITE

From: Nicholas Bellinger <nab@...ux-iscsi.org>

Greetings hch and tejun,

This patch updates pscsi_map_task_SG() to use the new .36-rc REQ_WRITE
macro in include/linux/blk_types.h when setting struct bio->bi_rw for
WRITE I/O.  This replaces the legacy (1 << BIO_RW) assignment, for which
the new REQ_WRITE macro expands to:

    #define REQ_WRITE       (1 << __REQ_WRITE)

to match the old BIO_RW assignement.

Thanks!

Signed-off-by: Nicholas A. Bellinger <nab@...ux-iscsi.org>
---
 drivers/target/target_core_pscsi.c |    7 +++----
 1 files changed, 3 insertions(+), 4 deletions(-)

diff --git a/drivers/target/target_core_pscsi.c b/drivers/target/target_core_pscsi.c
index 517268d..64808f1 100644
--- a/drivers/target/target_core_pscsi.c
+++ b/drivers/target/target_core_pscsi.c
@@ -30,6 +30,7 @@
 #include <linux/string.h>
 #include <linux/timer.h>
 #include <linux/blkdev.h>
+#include <linux/blk_types.h>
 #include <linux/slab.h>
 #include <linux/spinlock.h>
 #include <linux/smp_lock.h>
@@ -1103,11 +1104,9 @@ static int pscsi_map_task_SG(struct se_task *task)
 				bio = pscsi_get_bio(pdv, nr_vecs);
 				if (!(bio))
 					goto fail;
-				/*
-				 * FIXME: Use bio_set_dir() when avaliable
-				 */
+
 				if (rw)
-					bio->bi_rw |= (1 << BIO_RW);
+					bio->bi_rw |= REQ_WRITE;
 
 				DEBUG_PSCSI("PSCSI: Allocated bio: %p,"
 					" dir: %s nr_vecs: %d\n", bio,
-- 
1.5.6.5

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