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.

Michael S. Tsirkin committed 11 years ago

Commit 0fa2a561 parent 7e41a9d1 file · +5 −1Browse files

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include/uapi/linux/virtio_blk.h+5−1

@@ -119,7 +119,11 @@ struct virtio_blk_config { · 118 unmodified lines
119	119	#define VIRTIO_BLK_T_BARRIER 0x80000000
120	120	#endif /* !VIRTIO_BLK_NO_LEGACY */
121	121
122		−/* This is the first element of the read scatter-gather list. */
	122	+/*
	123	+ * This comes first in the read scatter-gather list.
	124	+ * For legacy virtio, if VIRTIO_F_ANY_LAYOUT is not negotiated,
	125	+ * this is the first element of the read scatter-gather list.
	126	+ */
123	127	struct virtio_blk_outhdr {
124	128	/* VIRTIO_BLK_T* */
125	129	__virtio32 type;