linux-kernel - [PATCH 2/3] ide: set REQ_NOMERGE request flag in ide_do_drive

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Date:	Sat, 3 May 2008 15:14:24 +0200
From:	Bartlomiej Zolnierkiewicz <bzolnier@...il.com>
To:	linux-ide@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org,
	FUJITA Tomonori <fujita.tomonori@....ntt.co.jp>,
	Borislav Petkov <petkovbb@...il.com>,
	Jens Axboe <jens.axboe@...cle.com>
Subject: [PATCH 2/3] ide: set REQ_NOMERGE request flag in ide_do_drive_cmd()

This is a preparation for converting IDE to use blk_execute_rq().

There should be no functional changes caused by this patch.

Cc: FUJITA Tomonori <fujita.tomonori@....ntt.co.jp>
Cc: Borislav Petkov <petkovbb@...il.com>
Cc: Jens Axboe <jens.axboe@...cle.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@...il.com>
---
 drivers/ide/ide-io.c |    2 ++
 1 file changed, 2 insertions(+)

Index: b/drivers/ide/ide-io.c
===================================================================
--- a/drivers/ide/ide-io.c
+++ b/drivers/ide/ide-io.c
@@ -1603,6 +1603,8 @@ int ide_do_drive_cmd (ide_drive_t *drive
 	if (action == ide_preempt || action == ide_head_wait)
 		where = ELEVATOR_INSERT_FRONT;
 
+	rq->cmd_flags |= REQ_NOMERGE;
+
 	spin_lock_irqsave(&ide_lock, flags);
 	if (action == ide_preempt)
 		hwgroup->rq = NULL;
--
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