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[libvirt] [PATCH 5/6] Add 'nbd' as a valid filesystem driver type



From: "Daniel P. Berrange" <berrange redhat com>

The <filesystem> element can now accept a <driver type='nbd'/>
as an alternative to 'loop'. The benefit of NBD is support
for non-raw disk image formats.

Signed-off-by: Daniel P. Berrange <berrange redhat com>
---
 docs/formatdomain.html.in                 | 5 +++--
 docs/schemas/domaincommon.rng             | 1 +
 src/conf/domain_conf.c                    | 3 ++-
 src/conf/domain_conf.h                    | 1 +
 src/qemu/qemu_command.c                   | 1 +
 tests/lxcxml2xmldata/lxc-disk-formats.xml | 5 +++++
 6 files changed, 13 insertions(+), 3 deletions(-)

diff --git a/docs/formatdomain.html.in b/docs/formatdomain.html.in
index c95756e..768b54c 100644
--- a/docs/formatdomain.html.in
+++ b/docs/formatdomain.html.in
@@ -1985,8 +1985,9 @@
             the <code>type</code> attribute selects the primary
             backend driver name, while the <code>format</code>
             attribute provides the format type. For example, LXC
-            supports a type of "loop", with a format of "raw". QEMU
-            supports a type of "path" or "handle", but no formats.
+            supports a type of "loop", with a format of "raw" or
+            "nbd" with any format. QEMU supports a type of "path"
+            or "handle", but no formats.
           </li>
         </ul>
       </dd>
diff --git a/docs/schemas/domaincommon.rng b/docs/schemas/domaincommon.rng
index 7d1cfa6..73225fc 100644
--- a/docs/schemas/domaincommon.rng
+++ b/docs/schemas/domaincommon.rng
@@ -1675,6 +1675,7 @@
             <value>path</value>
             <value>handle</value>
             <value>loop</value>
+            <value>nbd</value>
           </choice>
         </attribute>
       </optional>
diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c
index f858485..6bb30ae 100644
--- a/src/conf/domain_conf.c
+++ b/src/conf/domain_conf.c
@@ -343,7 +343,8 @@ VIR_ENUM_IMPL(virDomainFSDriverType, VIR_DOMAIN_FS_DRIVER_TYPE_LAST,
               "default",
               "path",
               "handle",
-              "loop")
+              "loop",
+              "nbd")
 
 VIR_ENUM_IMPL(virDomainFSAccessMode, VIR_DOMAIN_FS_ACCESSMODE_LAST,
               "passthrough",
diff --git a/src/conf/domain_conf.h b/src/conf/domain_conf.h
index 76a6dd0..c9e5d66 100644
--- a/src/conf/domain_conf.h
+++ b/src/conf/domain_conf.h
@@ -793,6 +793,7 @@ enum virDomainFSDriverType {
     VIR_DOMAIN_FS_DRIVER_TYPE_PATH,
     VIR_DOMAIN_FS_DRIVER_TYPE_HANDLE,
     VIR_DOMAIN_FS_DRIVER_TYPE_LOOP,
+    VIR_DOMAIN_FS_DRIVER_TYPE_NBD,
 
     VIR_DOMAIN_FS_DRIVER_TYPE_LAST
 };
diff --git a/src/qemu/qemu_command.c b/src/qemu/qemu_command.c
index 24f2fab..894b1a9 100644
--- a/src/qemu/qemu_command.c
+++ b/src/qemu/qemu_command.c
@@ -139,6 +139,7 @@ VIR_ENUM_IMPL(qemuDomainFSDriver, VIR_DOMAIN_FS_DRIVER_TYPE_LAST,
               "local",
               "local",
               "handle",
+              NULL,
               NULL);
 
 
diff --git a/tests/lxcxml2xmldata/lxc-disk-formats.xml b/tests/lxcxml2xmldata/lxc-disk-formats.xml
index da53cf2..e953065 100644
--- a/tests/lxcxml2xmldata/lxc-disk-formats.xml
+++ b/tests/lxcxml2xmldata/lxc-disk-formats.xml
@@ -19,6 +19,11 @@
       <source file='/root/container.img'/>
       <target dir='/'/>
     </filesystem>
+    <filesystem type='file' accessmode='passthrough'>
+      <driver type='nbd' format='qcow2'/>
+      <source file='/root/container.qcow2'/>
+      <target dir='/home'/>
+    </filesystem>
     <console type='pty'>
       <target type='lxc' port='0'/>
     </console>
-- 
1.8.2.1


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