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| author |   Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> | 2015-12-11 12:08:48 -0500 |
|---|---|---|
| committer | Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> | 2016-01-04 12:21:05 -0500 |
| commit | 2fb1ef4f1226ea6d6d3481036cabe01a4415b68c (patch) | |
| tree | e0d8fdbc4e0aad5e3eb76a3d573c4e56733e9382 /drivers/block/xen-blkback/common.h | |
| parent | xen/blkback: separate ring information out of struct xen_blkif (diff) | |
| download | linux-dev-2fb1ef4f1226ea6d6d3481036cabe01a4415b68c.tar.xz linux-dev-2fb1ef4f1226ea6d6d3481036cabe01a4415b68c.zip | |
xen/blkback: pseudo support for multi hardware queues/rings
Preparatory patch for multiple hardware queues (rings). The number of
rings is unconditionally set to 1, larger number will be enabled in
"xen/blkback: get the number of hardware queues/rings from blkfront".
Signed-off-by: Arianna Avanzini <avanzini.arianna@gmail.com>
Signed-off-by: Bob Liu <bob.liu@oracle.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
---
v2: Align variables in the structures.
Diffstat (limited to 'drivers/block/xen-blkback/common.h')
| -rw-r--r-- | drivers/block/xen-blkback/common.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/block/xen-blkback/common.h b/drivers/block/xen-blkback/common.h index dbdf4164c83f..310eff3cf43f 100644 --- a/drivers/block/xen-blkback/common.h +++ b/drivers/block/xen-blkback/common.h @@ -340,7 +340,8 @@ struct xen_blkif { struct work_struct free_work; unsigned int nr_ring_pages; /* All rings for this device. */ - struct xen_blkif_ring ring; + struct xen_blkif_ring *rings; + unsigned int nr_rings; }; struct seg_buf { |