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Add support for RAM filesystems for LXC

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Introduce a new syntax for filesystems to allow use of a RAM
filesystem

   <filesystem type='ram'>
      <source usage='10' units='MiB'/>
      <target dir='/mnt'/>
   </filesystem>

The usage units default to KiB to limit consumption of host memory.

* docs/formatdomain.html.in: Document new syntax
* docs/schemas/domaincommon.rng: Add new attributes
* src/conf/domain_conf.c: Parsing/formatting of RAM filesystems
* src/lxc/lxc_container.c: Mounting of RAM filesystems

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
This commit is contained in:
Daniel P. Berrange
2012-05-08 17:50:48 +01:00
parent 9c77bf04b0
commit 76b644c362
5 changed files with 137 additions and 22 deletions
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18
docs/schemas/domaincommon.rng
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@@ -1290,6 +1290,24 @@
</element>
</interleave>
</group>
<group>
<attribute name="type">
<value>ram</value>
</attribute>
<interleave>
<element name="source">
<attribute name="usage">
<ref name="unsignedLong"/>
</attribute>
<optional>
<attribute name='unit'>
<ref name='unit'/>
</attribute>
</optional>
<empty/>
</element>
</interleave>
</group>
</choice>
<interleave>
<element name="target">