Re: [PATCH 1/2] block: Lock AioContext for drain_end in blockdev-reopen

[Hanna Reitz]

On 03.02.22 15:05, Kevin Wolf wrote:
> bdrv_subtree_drained_end() requires the caller to hold the AioContext
> lock for the drained node. Not doing this for nodes outside of the main
> AioContext leads to crashes when AIO_WAIT_WHILE() needs to wait and
> tries to temporarily release the lock.
>
> Fixes: 3908b7a8994fa5ef7a89aa58cd5a02fc58141592
> Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=2046659
> Reported-by: Qing Wang <qinwang@redhat.com>
> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
> ---
>   blockdev.c | 11 ++++++++++-
>   1 file changed, 10 insertions(+), 1 deletion(-)

Reviewed-by: Hanna Reitz <hreitz@redhat.com>