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authorMarcelo Tosatti <mtosatti@redhat.com>2011-01-26 12:12:33 -0200
committerKevin Wolf <kwolf@redhat.com>2011-02-07 12:51:19 +0100
commitf48905d44f670cd83227b3a8d06ae1406f0c771c (patch)
tree9923b76943c7b272fbd1b83a48a8489d793c35c2 /block-migration.c
parent84fb392526479d54602a3830326d50d44657f630 (diff)
downloadqemu-arm-f48905d44f670cd83227b3a8d06ae1406f0c771c.tar.gz
block-migration: add reference to target DriveInfo
So that ejection of attached device by guest does not free data in use by block migration instance. Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com> CC: Markus Armbruster <armbru@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Diffstat (limited to 'block-migration.c')
-rw-r--r--block-migration.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/block-migration.c b/block-migration.c
index 483ca7bab9..323e1e2bcd 100644
--- a/block-migration.c
+++ b/block-migration.c
@@ -19,6 +19,7 @@
#include "monitor.h"
#include "block-migration.h"
#include "migration.h"
+#include "blockdev.h"
#include <assert.h>
#define BLOCK_SIZE (BDRV_SECTORS_PER_DIRTY_CHUNK << BDRV_SECTOR_BITS)
@@ -299,6 +300,7 @@ static void init_blk_migration_it(void *opaque, BlockDriverState *bs)
bmds->completed_sectors = 0;
bmds->shared_base = block_mig_state.shared_base;
alloc_aio_bitmap(bmds);
+ drive_get_ref(drive_get_by_blockdev(bs));
block_mig_state.total_sector_sum += sectors;
@@ -537,6 +539,7 @@ static void blk_mig_cleanup(Monitor *mon)
while ((bmds = QSIMPLEQ_FIRST(&block_mig_state.bmds_list)) != NULL) {
QSIMPLEQ_REMOVE_HEAD(&block_mig_state.bmds_list, entry);
+ drive_put_ref(drive_get_by_blockdev(bmds->bs));
qemu_free(bmds->aio_bitmap);
qemu_free(bmds);
}