| Date | Thu, 29 Oct 2020 09:43:46 -0400 | From | Johannes Weiner <> | Subject | Re: [PATCH v20 01/20] mm/memcg: warning on !memcg after readahead page charged |
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On Thu, Oct 29, 2020 at 06:44:46PM +0800, Alex Shi wrote: > Add VM_WARN_ON_ONCE_PAGE() macro. > > Since readahead page is charged on memcg too, in theory we don't have to > check this exception now. Before safely remove them all, add a warning > for the unexpected !memcg. > > Signed-off-by: Alex Shi <alex.shi@linux.alibaba.com> > Acked-by: Michal Hocko <mhocko@suse.com> > Acked-by: Hugh Dickins <hughd@google.com> > Cc: Johannes Weiner <hannes@cmpxchg.org> > Cc: Michal Hocko <mhocko@kernel.org> > Cc: Vladimir Davydov <vdavydov.dev@gmail.com> > Cc: Andrew Morton <akpm@linux-foundation.org> > Cc: cgroups@vger.kernel.org > Cc: linux-mm@kvack.org > Cc: linux-kernel@vger.kernel.org
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
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