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[Qemu-devel] [PATCH v3 14/19] block: vmdk image file reopen
From: |
Jeff Cody |
Subject: |
[Qemu-devel] [PATCH v3 14/19] block: vmdk image file reopen |
Date: |
Tue, 18 Sep 2012 14:53:19 -0400 |
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>
---
block/vmdk.c | 35 +++++++++++++++++++++++++++++++++++
1 file changed, 35 insertions(+)
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,
--
1.7.11.4
- [Qemu-devel] [PATCH v3 06/19] block: do not parse BDRV_O_CACHE_WB in block drivers, (continued)
- [Qemu-devel] [PATCH v3 06/19] block: do not parse BDRV_O_CACHE_WB in block drivers, Jeff Cody, 2012/09/18
- [Qemu-devel] [PATCH v3 07/19] block: use BDRV_O_NOCACHE instead of s->aligned_buf in raw-posix.c, Jeff Cody, 2012/09/18
- [Qemu-devel] [PATCH v3 09/19] block: raw-posix image file reopen, Jeff Cody, 2012/09/18
- [Qemu-devel] [PATCH v3 10/19] block: raw image file reopen, Jeff Cody, 2012/09/18
- [Qemu-devel] [PATCH v3 12/19] block: qcow2 image file reopen, Jeff Cody, 2012/09/18
- [Qemu-devel] [PATCH v3 13/19] block: qcow image file reopen, Jeff Cody, 2012/09/18
- [Qemu-devel] [PATCH v3 14/19] block: vmdk image file reopen,
Jeff Cody <=
- [Qemu-devel] [PATCH v3 01/19] block: correctly set the keep_read_only flag, Jeff Cody, 2012/09/18
- [Qemu-devel] [PATCH v3 08/19] block: purge s->aligned_buf and s->aligned_buf_size from raw-posix.c, Jeff Cody, 2012/09/18
- [Qemu-devel] [PATCH v3 17/19] block: vpc image file reopen, Jeff Cody, 2012/09/18
- [Qemu-devel] [PATCH v3 15/19] block: raw-win32 driver reopen support, Jeff Cody, 2012/09/18
- [Qemu-devel] [PATCH v3 11/19] block: qed image file reopen, Jeff Cody, 2012/09/18
- [Qemu-devel] [PATCH v3 18/19] block: convert bdrv_commit() to use bdrv_reopen(), Jeff Cody, 2012/09/18
- [Qemu-devel] [PATCH v3 02/19] block: make bdrv_set_enable_write_cache() modify open_flags, Jeff Cody, 2012/09/18
- [Qemu-devel] [PATCH v3 16/19] block: vdi image file reopen, Jeff Cody, 2012/09/18