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Diffstat (limited to 'block.c')
-rw-r--r--block.c15
1 files changed, 11 insertions, 4 deletions
diff --git a/block.c b/block.c
index 7f3e7bcdc3..c19c6c6d42 100644
--- a/block.c
+++ b/block.c
@@ -1428,9 +1428,11 @@ void bdrv_set_backing_hd(BlockDriverState *bs, BlockDriverState *backing_hd)
backing_hd->drv ? backing_hd->drv->format_name : "");
bdrv_op_block_all(backing_hd, bs->backing_blocker);
- /* Otherwise we won't be able to commit due to check in bdrv_commit */
+ /* Otherwise we won't be able to commit or stream */
bdrv_op_unblock(backing_hd, BLOCK_OP_TYPE_COMMIT_TARGET,
bs->backing_blocker);
+ bdrv_op_unblock(backing_hd, BLOCK_OP_TYPE_STREAM,
+ bs->backing_blocker);
/*
* We do backup in 3 ways:
* 1. drive backup
@@ -2082,7 +2084,7 @@ BlockReopenQueue *bdrv_reopen_queue(BlockReopenQueue *bs_queue,
* to all devices.
*
*/
-int bdrv_reopen_multiple(BlockReopenQueue *bs_queue, Error **errp)
+int bdrv_reopen_multiple(AioContext *ctx, BlockReopenQueue *bs_queue, Error **errp)
{
int ret = -1;
BlockReopenQueueEntry *bs_entry, *next;
@@ -2090,7 +2092,9 @@ int bdrv_reopen_multiple(BlockReopenQueue *bs_queue, Error **errp)
assert(bs_queue != NULL);
- bdrv_drain_all();
+ aio_context_release(ctx);
+ bdrv_drain_all_begin();
+ aio_context_acquire(ctx);
QSIMPLEQ_FOREACH(bs_entry, bs_queue, entry) {
if (bdrv_reopen_prepare(&bs_entry->state, bs_queue, &local_err)) {
@@ -2120,6 +2124,9 @@ cleanup:
g_free(bs_entry);
}
g_free(bs_queue);
+
+ bdrv_drain_all_end();
+
return ret;
}
@@ -2131,7 +2138,7 @@ int bdrv_reopen(BlockDriverState *bs, int bdrv_flags, Error **errp)
Error *local_err = NULL;
BlockReopenQueue *queue = bdrv_reopen_queue(NULL, bs, NULL, bdrv_flags);
- ret = bdrv_reopen_multiple(queue, &local_err);
+ ret = bdrv_reopen_multiple(bdrv_get_aio_context(bs), queue, &local_err);
if (local_err != NULL) {
error_propagate(errp, local_err);
}