On Tue, Mar 17, 2020 at 8:06 AM Ilya Dryomov <idryomov@xxxxxxxxx> wrote: > > Hello, > > A recent snapshot-based mirroring experiment exposed a deadlock on > header_rwsem in the error path of rbd_dev_image_probe() (i.e. "rbd > map"). > > Thanks, > > Ilya > > > Ilya Dryomov (3): > rbd: avoid a deadlock on header_rwsem when flushing notifies > rbd: call rbd_dev_unprobe() after unwatching and flushing notifies > rbd: don't test rbd_dev->opts in rbd_dev_image_release() > > drivers/block/rbd.c | 23 ++++++++++++++--------- > 1 file changed, 14 insertions(+), 9 deletions(-) > > -- > 2.19.2 > The "get_snapcontext" call still going to hang (albeit in an interruptible state) if the image has > 510 snapshots, correct? Reviewed-by: Jason Dillaman <dillaman@xxxxxxxxxx> -- Jason
