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[Qemu-devel] [RFC 06/12] qorum: Add qorum_getlength().
From: |
Benoît Canet |
Subject: |
[Qemu-devel] [RFC 06/12] qorum: Add qorum_getlength(). |
Date: |
Thu, 2 Aug 2012 12:16:38 +0200 |
Signed-off-by: Benoit Canet <address@hidden>
---
block/qorum.c | 17 +++++++++++++++++
1 file changed, 17 insertions(+)
diff --git a/block/qorum.c b/block/qorum.c
index 006ab8c..37f6514 100644
--- a/block/qorum.c
+++ b/block/qorum.c
@@ -119,12 +119,29 @@ static void qorum_close(BlockDriverState *bs)
}
}
+static int64_t qorum_getlength(BlockDriverState *bs)
+{
+ BDRVQorumState *s = bs->opaque;
+ int i;
+ int64_t ret;
+
+ /* return the length of the first available qorum file */
+ for (i = 0, ret = bdrv_getlength(s->bs[i]);
+ ret == -ENOMEDIUM && i <= 2;
+ i++, ret = bdrv_getlength(s->bs[i])) {
+ }
+
+ return ret;
+}
+
static BlockDriver bdrv_qorum = {
.format_name = "qorum",
.protocol_name = "qorum",
.instance_size = sizeof(BDRVQorumState),
+ .bdrv_getlength = qorum_getlength,
+
.bdrv_file_open = qorum_open,
.bdrv_close = qorum_close,
};
--
1.7.9.5
- [Qemu-devel] [RFC 00/12] Qorum disk image corruption resiliency, Benoît Canet, 2012/08/02
- [Qemu-devel] [RFC 04/12] qorum: Add qorum_open()., Benoît Canet, 2012/08/02
- [Qemu-devel] [RFC 01/12] qorum: Add GPL v2+ heade r file., Benoît Canet, 2012/08/02
- [Qemu-devel] [RFC 06/12] qorum: Add qorum_getlength().,
Benoît Canet <=
- [Qemu-devel] [RFC 03/12] qorum: Create BDRVQorumState and BlkDriver and do init., Benoît Canet, 2012/08/02
- [Qemu-devel] [RFC 05/12] qorum: Add qorum_close()., Benoît Canet, 2012/08/02
- [Qemu-devel] [RFC 02/12] qorum: Add QorumSingleAIOCB and QorumAIOCB., Benoît Canet, 2012/08/02
- [Qemu-devel] [RFC 10/12] qorum: Add qorum_aio_readv., Benoît Canet, 2012/08/02
- [Qemu-devel] [RFC 07/12] qorum: Add qorum_aio_writev and its dependencies., Benoît Canet, 2012/08/02
- [Qemu-devel] [RFC 12/12] qorum: build feature into QEMU., Benoît Canet, 2012/08/02
- [Qemu-devel] [RFC 08/12] blkverify: Make blkverify_iovec_clone() and blkverify_iovec_compare() public, Benoît Canet, 2012/08/02
- [Qemu-devel] [RFC 09/12] qorum: Add qorum_co_flush()., Benoît Canet, 2012/08/02
- [Qemu-devel] [RFC 11/12] qorum: Add qorum mechanism., Benoît Canet, 2012/08/02