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qdev-properties-system: Lock AioContext for blk_insert_bs() 

blk_insert_bs() requires that callers hold the AioContext lock for the
node that should be inserted. Take it.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Message-ID: <20230605085711.21261-3-kwolf@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This commit is contained in:
Kevin Wolf 2023-06-05 10:57:02 +02:00
parent 23e6c3c41b
commit 415275aed9
1 changed files with 6 additions and 2 deletions
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8
hw/core/qdev-properties-system.c
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@ -143,11 +143,15 @@ static void set_drive_helper(Object *obj, Visitor *v, const char *name,
* aware of iothreads require their BlockBackends to be in the main
* AioContext.
*/
ctx = iothread ? bdrv_get_aio_context(bs) : qemu_get_aio_context();
blk = blk_new(ctx, 0, BLK_PERM_ALL);
ctx = bdrv_get_aio_context(bs);
blk = blk_new(iothread ? ctx : qemu_get_aio_context(),
0, BLK_PERM_ALL);
blk_created = true;
aio_context_acquire(ctx);
ret = blk_insert_bs(blk, bs, errp);
aio_context_release(ctx);
if (ret < 0) {
goto fail;
}