Messages in this thread | | | Date | Mon, 5 Feb 2018 18:02:31 -0500 | From | Johannes Weiner <> | Subject | Re: [PATCH 1/2] bdi: make sure congestion states are clear on free |
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On Fri, Feb 02, 2018 at 09:53:28AM -0800, Tejun Heo wrote: > FUSE has a bug where it fails to clear congestion states if a > connection gets aborted while congested, which can leave > nr_wb_congested[] stuck until reboot causing wait_iff_congested() to > wait spuriously. > > While the bdi owner, FUSE, is primarily responsible for clearing > congestion states before destroying bdi_writebacks, bdi layer can > ensure that congestion states are not leaked beyond bdi_writeback > lifecycle. > > Signed-off-by: Tejun Heo <tj@kernel.org> > Reported-by: Joshua Miller <joshmiller@fb.com> > Cc: Johannes Weiner <hannes@cmpxchg.org> > Cc: Jan Kara <jack@suse.cz> > Cc: stable@vger.kernel.org
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
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