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[Qemu-devel] [patch 3/5] block-migration: add reference to target DriveI
From: |
Marcelo Tosatti |
Subject: |
[Qemu-devel] [patch 3/5] block-migration: add reference to target DriveInfo |
Date: |
Wed, 26 Jan 2011 12:12:33 -0200 |
User-agent: |
quilt/0.47-1 |
So that ejection of attached device by guest does not free data
in use by block migration instance.
Signed-off-by: Marcelo Tosatti <address@hidden>
CC: Markus Armbruster <address@hidden>
Index: qemu/block-migration.c
===================================================================
--- qemu.orig/block-migration.c
+++ qemu/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 *
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;
@@ -532,6 +534,7 @@ 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);
}