On Mon, Jan 13, 2025 at 08:23:19AM +0000, John Garry wrote: > On 13/01/2025 01:58, Ming Lei wrote: > > sysfs ->store is called with queue freezed, meantime we have several > > ->store() callbacks(update_nr_requests, wbt, scheduler) to allocate > > memory with GFP_KERNEL which may run into direct reclaim code path, > > then potential deadlock can be caused. > > > > Fix the issue by marking NOIO around sysfs ->store() > > > > Reported-by: Thomas Hellström<thomas.hellstrom@xxxxxxxxxxxxxxx> > > Cc:stable@xxxxxxxxxxxxxxx > > Signed-off-by: Ming Lei<ming.lei@xxxxxxxxxx> > > I guess that you should be including a link to https://lore.kernel.org/linux-block/Z4RkemI9f6N5zoEF@fedora/T/#mc774c65eeca5c024d29695f9ac6152b87763f305 > Indeed, I will add a Closes tag in V2. > Regardless, FWIW: > Reviewed-by: John Garry <john.g.garry@xxxxxxxxxx> Thanks, -- Ming
