linux-kernel - [PATCH 2.6.18-rc4] aoe [11/14]: use bio->bi

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Date:	Wed, 20 Sep 2006 14:36:50 -0400
From:	"Ed L. Cashin" <ecashin@...aid.com>
To:	linux-kernel@...r.kernel.org
Cc:	ecashin@...aid.com, Greg K-H <greg@...ah.com>
Subject: [PATCH 2.6.18-rc4] aoe [11/14]: use bio->bi_idx

Instead of starting with bio->bi_io_vec, use the offset in bio->bi_idx.

Signed-off-by: "Ed L. Cashin" <ecashin@...aid.com>
---

diff -upr 2.6.18-rc4-orig/drivers/block/aoe/aoeblk.c 2.6.18-rc4-aoe/drivers/block/aoe/aoeblk.c
--- 2.6.18-rc4-orig/drivers/block/aoe/aoeblk.c	2006-09-20 14:29:35.000000000 -0400
+++ 2.6.18-rc4-aoe/drivers/block/aoe/aoeblk.c	2006-09-20 14:29:36.000000000 -0400
@@ -142,7 +142,8 @@ aoeblk_make_request(request_queue_t *q, 
 	buf->bio = bio;
 	buf->resid = bio->bi_size;
 	buf->sector = bio->bi_sector;
-	buf->bv = buf->bio->bi_io_vec;
+	buf->bv = &bio->bi_io_vec[bio->bi_idx];
+	WARN_ON(buf->bv->bv_len == 0);
 	buf->bv_resid = buf->bv->bv_len;
 	buf->bufaddr = page_address(buf->bv->bv_page) + buf->bv->bv_offset;
 
diff -upr 2.6.18-rc4-orig/drivers/block/aoe/aoecmd.c 2.6.18-rc4-aoe/drivers/block/aoe/aoecmd.c
--- 2.6.18-rc4-orig/drivers/block/aoe/aoecmd.c	2006-09-20 14:29:36.000000000 -0400
+++ 2.6.18-rc4-aoe/drivers/block/aoe/aoecmd.c	2006-09-20 14:29:36.000000000 -0400
@@ -166,6 +166,7 @@ aoecmd_ata_rw(struct aoedev *d, struct f
 		d->inprocess = NULL;
 	} else if (buf->bv_resid == 0) {
 		buf->bv++;
+		WARN_ON(buf->bv->bv_len == 0);
 		buf->bv_resid = buf->bv->bv_len;
 		buf->bufaddr = page_address(buf->bv->bv_page) + buf->bv->bv_offset;
 	}


-- 
  "Ed L. Cashin" <ecashin@...aid.com>
-
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