[Top][All Lists]
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Qemu-devel] [PATCH 15/19] block: vmdk image file reopen
From: |
Kevin Wolf |
Subject: |
[Qemu-devel] [PATCH 15/19] block: vmdk image file reopen |
Date: |
Mon, 24 Sep 2012 16:26:44 +0200 |
From: Jeff Cody <address@hidden>
This patch supports reopen for VMDK image files. VMDK extents are added
to the existing reopen queue, so that the transactional model of reopen
is maintained with multiple image files.
Signed-off-by: Jeff Cody <address@hidden>
Signed-off-by: Kevin Wolf <address@hidden>
---
block/vmdk.c | 35 +++++++++++++++++++++++++++++++++++
1 files changed, 35 insertions(+), 0 deletions(-)
diff --git a/block/vmdk.c b/block/vmdk.c
index bba4c61..f2e861b 100644
--- a/block/vmdk.c
+++ b/block/vmdk.c
@@ -300,6 +300,40 @@ static int vmdk_is_cid_valid(BlockDriverState *bs)
return 1;
}
+/* Queue extents, if any, for reopen() */
+static int vmdk_reopen_prepare(BDRVReopenState *state,
+ BlockReopenQueue *queue, Error **errp)
+{
+ BDRVVmdkState *s;
+ int ret = -1;
+ int i;
+ VmdkExtent *e;
+
+ assert(state != NULL);
+ assert(state->bs != NULL);
+
+ if (queue == NULL) {
+ error_set(errp, ERROR_CLASS_GENERIC_ERROR,
+ "No reopen queue for VMDK extents");
+ goto exit;
+ }
+
+ s = state->bs->opaque;
+
+ assert(s != NULL);
+
+ for (i = 0; i < s->num_extents; i++) {
+ e = &s->extents[i];
+ if (e->file != state->bs->file) {
+ bdrv_reopen_queue(queue, e->file, state->flags);
+ }
+ }
+ ret = 0;
+
+exit:
+ return ret;
+}
+
static int vmdk_parent_open(BlockDriverState *bs)
{
char *p_name;
@@ -1646,6 +1680,7 @@ static BlockDriver bdrv_vmdk = {
.instance_size = sizeof(BDRVVmdkState),
.bdrv_probe = vmdk_probe,
.bdrv_open = vmdk_open,
+ .bdrv_reopen_prepare = vmdk_reopen_prepare,
.bdrv_read = vmdk_co_read,
.bdrv_write = vmdk_co_write,
.bdrv_close = vmdk_close,
--
1.7.6.5
- [Qemu-devel] [PATCH 13/19] block: qcow2 image file reopen, (continued)
- [Qemu-devel] [PATCH 13/19] block: qcow2 image file reopen, Kevin Wolf, 2012/09/24
- [Qemu-devel] [PATCH 06/19] block: move open flag parsing in raw block drivers to helper functions, Kevin Wolf, 2012/09/24
- [Qemu-devel] [PATCH 08/19] block: use BDRV_O_NOCACHE instead of s->aligned_buf in raw-posix.c, Kevin Wolf, 2012/09/24
- [Qemu-devel] [PATCH 12/19] block: qed image file reopen, Kevin Wolf, 2012/09/24
- [Qemu-devel] [PATCH 11/19] block: raw image file reopen, Kevin Wolf, 2012/09/24
- [Qemu-devel] [PATCH 09/19] block: purge s->aligned_buf and s->aligned_buf_size from raw-posix.c, Kevin Wolf, 2012/09/24
- [Qemu-devel] [PATCH 07/19] block: do not parse BDRV_O_CACHE_WB in block drivers, Kevin Wolf, 2012/09/24
- [Qemu-devel] [PATCH 18/19] block: convert bdrv_commit() to use bdrv_reopen(), Kevin Wolf, 2012/09/24
- [Qemu-devel] [PATCH 04/19] block: Framework for reopening files safely, Kevin Wolf, 2012/09/24
- [Qemu-devel] [PATCH 14/19] block: qcow image file reopen, Kevin Wolf, 2012/09/24
- [Qemu-devel] [PATCH 15/19] block: vmdk image file reopen,
Kevin Wolf <=
- [Qemu-devel] [PATCH 17/19] block: vpc image file reopen, Kevin Wolf, 2012/09/24
- [Qemu-devel] [PATCH 16/19] block: vdi image file reopen, Kevin Wolf, 2012/09/24
- [Qemu-devel] [PATCH 19/19] block: remove keep_read_only flag from BlockDriverState struct, Kevin Wolf, 2012/09/24
- Re: [Qemu-devel] [PULL 00/19] Block patches, Anthony Liguori, 2012/09/25