On Wed, Aug 11, 2021 at 02:44:28PM +0200, Christoph Hellwig wrote: > nbd_index_mutex is currently held over add_disk and inside ->open, which > leads to lock order reversals. Refactor the device creation code path > so that nbd_dev_add is called without nbd_index_mutex lock held and > only takes it for the IDR insertation. insertion > > Signed-off-by: Christoph Hellwig <hch@xxxxxx> > --- > drivers/block/nbd.c | 55 +++++++++++++++++++++++---------------------- > 1 file changed, 28 insertions(+), 27 deletions(-) > -- Eric Blake, Principal Software Engineer Red Hat, Inc. +1-919-301-3266 Virtualization: qemu.org | libvirt.org
