[libvirt] [PATCH] docs: domain: document blkiotune {read, write}_{bytes, iops}_sec

[Cole Robinson]

Added with commit 3b431929 in v1.2.2 but never documented

https://bugzilla.redhat.com/show_bug.cgi?id=1313613
---
 docs/formatdomain.html.in | 18 +++++++++++++++++-
 1 file changed, 17 insertions(+), 1 deletion(-)

diff --git a/docs/formatdomain.html.in b/docs/formatdomain.html.in
index c2955eb..8c98288 100644
--- a/docs/formatdomain.html.in
+++ b/docs/formatdomain.html.in
@@ -991,6 +991,10 @@
     <device>
       <path>/dev/sdb</path>
       <weight>500</weight>
+      <read_bytes_sec>10000</read_bytes_sec>
+      <write_bytes_sec>10000</write_bytes_sec>
+      <read_iops_sec>20000</read_iops_sec>
+      <write_iops_sec>20000</write_iops_sec>
     </device>
   </blkiotune>
   ...
@@ -1025,7 +1029,19 @@
         absolute path of the device, and <code>weight</code> giving
         the relative weight of that device, in the range [100,
         1000]. After kernel 2.6.39, the value could be in the
-        range [10, 1000].<span class="since">Since 0.9.8</span></dd>
+        range [10, 1000]. <span class="since">Since 0.9.8</span>
+        <br/><br/>
+        <code>device</code> has the following optional sub-elements:
+        <ul>
+          <li><code>read_bytes_sec</code>: read throughput limit in
+            bytes per second. <span class="since">Since 1.2.2</span></li>
+          <li><code>write_bytes_sec</code>: write throughput limit in
+            bytes per second. <span class="since">Since 1.2.2</span></li>
+          <li><code>read_iops_sec</code>: read I/O operations
+            per second limit. <span class="since">Since 1.2.2</span></li>
+          <li><code>write_iops_sec</code>: write I/O operations
+            per second limit. <span class="since">Since 1.2.2</span></li>
+        </ul></dd>
     </dl>
 
 
-- 
2.7.3