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Message-ID: <1425192883-5930-3-git-send-email-mst@redhat.com>
Date: Sun, 1 Mar 2015 08:39:19 +0100
From: "Michael S. Tsirkin" <mst@...hat.com>
To: linux-kernel@...r.kernel.org,
Rusty Russell <rusty@...tcorp.com.au>,
virtualization@...ts.linux-foundation.org, qemu-devel@...gnu.org
Subject: [PATCH 2/2] virtio_blk: fix comment for virtio 1.0
Fix up comment to match virtio 1.0 logic:
virtio_blk_outhdr isn't the first elements anymore,
the only requirement is that it comes first in
the s/g list.
Signed-off-by: Michael S. Tsirkin <mst@...hat.com>
---
include/uapi/linux/virtio_blk.h | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/include/uapi/linux/virtio_blk.h b/include/uapi/linux/virtio_blk.h
index b695ba9..19c66fc 100644
--- a/include/uapi/linux/virtio_blk.h
+++ b/include/uapi/linux/virtio_blk.h
@@ -119,7 +119,11 @@ struct virtio_blk_config {
#define VIRTIO_BLK_T_BARRIER 0x80000000
#endif /* !VIRTIO_BLK_NO_LEGACY */
-/* This is the first element of the read scatter-gather list. */
+/*
+ * This comes first in the read scatter-gather list.
+ * For legacy virtio, if VIRTIO_F_ANY_LAYOUT is not negotiated,
+ * this is the first element of the read scatter-gather list.
+ */
struct virtio_blk_outhdr {
/* VIRTIO_BLK_T* */
__virtio32 type;
--
MST
--
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