diff mbox

[v6,1/2] qapi: add read-pattern enum for quorum

Message ID 1408354865-23490-2-git-send-email-namei.unix@gmail.com
State New
Headers show

Commit Message

Liu Yuan Aug. 18, 2014, 9:41 a.m. UTC 
Cc: Eric Blake <eblake@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Benoît Canet <benoit.canet@nodalink.com>
Signed-off-by: Liu Yuan <namei.unix@gmail.com>
---
 qapi/block-core.json | 20 +++++++++++++++++++-
 1 file changed, 19 insertions(+), 1 deletion(-)
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Patch

diff --git a/qapi/block-core.json b/qapi/block-core.json
index e378653..42033d9 100644
--- a/qapi/block-core.json
+++ b/qapi/block-core.json
@@ -1384,6 +1384,19 @@ 
             'raw': 'BlockdevRef' } }
 
 ##
+# @QuorumReadPattern
+#
+# An enumeration of quorum read patterns.
+#
+# @quorum: read all the children and do a quorum vote on reads
+#
+# @fifo: read only from the first child that has not failed
+#
+# Since: 2.2
+##
+{ 'enum': 'QuorumReadPattern', 'data': [ 'quorum', 'fifo' ] }
+
+##
 # @BlockdevOptionsQuorum
 #
 # Driver specific block device options for Quorum
@@ -1398,12 +1411,17 @@ 
 # @rewrite-corrupted: #optional rewrite corrupted data when quorum is reached
 #                     (Since 2.1)
 #
+# @read-pattern: #optional choose read pattern and set to quorum by default
+#                (Since 2.2)
+#
 # Since: 2.0
 ##
 { 'type': 'BlockdevOptionsQuorum',
   'data': { '*blkverify': 'bool',
             'children': [ 'BlockdevRef' ],
-            'vote-threshold': 'int', '*rewrite-corrupted': 'bool' } }
+            'vote-threshold': 'int',
+            '*rewrite-corrupted': 'bool',
+            '*read-pattern': 'QuorumReadPattern' } }
 
 ##
 # @BlockdevOptions