On Wed, Mar 31, 2021 at 2:13 PM Hugh Dickins wrote:
>
> On Wed, 31 Mar 2021, Yang Shi wrote:
> > On Wed, Mar 31, 2021 at 6:54 AM Shakeel Butt wrote:
> > > On Tue, Mar 30, 2021 at 4:44 PM Hugh Dickins wrote:
> > > >
> > > > Lockdep warns mm/vmscan.c: suspicious rcu_dereference_protected() usage!
On Wed, 31 Mar 2021, Yang Shi wrote:
> On Wed, Mar 31, 2021 at 6:54 AM Shakeel Butt wrote:
> > On Tue, Mar 30, 2021 at 4:44 PM Hugh Dickins wrote:
> > >
> > > Lockdep warns mm/vmscan.c: suspicious rcu_dereference_protected() usage!
> > > when free_shrinker_info() is called from
On Wed, Mar 31, 2021 at 6:54 AM Shakeel Butt wrote:
>
> On Tue, Mar 30, 2021 at 4:44 PM Hugh Dickins wrote:
> >
> > Lockdep warns mm/vmscan.c: suspicious rcu_dereference_protected() usage!
> > when free_shrinker_info() is called from mem_cgroup_css_free(): there it
> > is called with no locking,
On Tue, Mar 30, 2021 at 4:44 PM Hugh Dickins wrote:
>
> Lockdep warns mm/vmscan.c: suspicious rcu_dereference_protected() usage!
> when free_shrinker_info() is called from mem_cgroup_css_free(): there it
> is called with no locking, whereas alloc_shrinker_info() calls it with
> down_write of
Lockdep warns mm/vmscan.c: suspicious rcu_dereference_protected() usage!
when free_shrinker_info() is called from mem_cgroup_css_free(): there it
is called with no locking, whereas alloc_shrinker_info() calls it with
down_write of shrinker_rwsem - which seems appropriate. Rearrange that
so
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