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authorMichael S. Tsirkin <mst@redhat.com>2015-04-12 17:55:17 +0200
committerKevin Wolf <kwolf@redhat.com>2015-04-28 15:36:09 +0200
commit4eb867e98c1815d9d7a2a9380182005df12064a7 (patch)
treed30365020ce1151a47deb06d1e512ba7e0b8cde8 /include/standard-headers
parent0b5a24454fc551f0294fe93821e8c643214a55f5 (diff)
virtio_blk: comment fix
update virtio blk header from latest linux, include comment fixups. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Message-id: 1428854036-12806-1-git-send-email-mst@redhat.com Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Diffstat (limited to 'include/standard-headers')
-rw-r--r--include/standard-headers/linux/virtio_blk.h8
1 files changed, 6 insertions, 2 deletions
diff --git a/include/standard-headers/linux/virtio_blk.h b/include/standard-headers/linux/virtio_blk.h
index 12016b47f3..cd601f4069 100644
--- a/include/standard-headers/linux/virtio_blk.h
+++ b/include/standard-headers/linux/virtio_blk.h
@@ -58,7 +58,7 @@ struct virtio_blk_config {
uint32_t size_max;
/* The maximum number of segments (if VIRTIO_BLK_F_SEG_MAX) */
uint32_t seg_max;
- /* geometry the device (if VIRTIO_BLK_F_GEOMETRY) */
+ /* geometry of the device (if VIRTIO_BLK_F_GEOMETRY) */
struct virtio_blk_geometry {
uint16_t cylinders;
uint8_t heads;
@@ -117,7 +117,11 @@ 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;