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block-migration: Flush requests in blk_mig_cleanup 

When cancelling block migration, all in-flight requests of the block
migration must be completed before the data can be freed. This was
visible as failing assertions and segfaults.

Reported-by: Peter Lieven <pl@dlhnet.de>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This commit is contained in:
Kevin Wolf 2012-09-25 15:47:36 +02:00
parent 6f8fd2530e
commit 946d58be15
1 changed files with 2 additions and 0 deletions
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2
block-migration.c
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@ -519,6 +519,8 @@ static void blk_mig_cleanup(void)
BlkMigDevState *bmds; BlkMigDevState *bmds;
BlkMigBlock *blk; BlkMigBlock *blk;
bdrv_drain_all();
set_dirty_tracking(0); set_dirty_tracking(0);
while ((bmds = QSIMPLEQ_FIRST(&block_mig_state.bmds_list)) != NULL) { while ((bmds = QSIMPLEQ_FIRST(&block_mig_state.bmds_list)) != NULL) {