Messages in this thread | | | Date | Wed, 12 Feb 2020 17:12:49 -0500 | From | Tejun Heo <> | Subject | Re: [PATCH] cgroup.c: Use built-in RCU list checking |
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On Sat, Jan 18, 2020 at 08:40:51AM +0530, madhuparnabhowmik10@gmail.com wrote: > From: Madhuparna Bhowmik <madhuparnabhowmik10@gmail.com> > > list_for_each_entry_rcu has built-in RCU and lock checking. > Pass cond argument to list_for_each_entry_rcu() to silence > false lockdep warning when CONFIG_PROVE_RCU_LIST is enabled > by default. > > Even though the function css_next_child() already checks if > cgroup_mutex or rcu_read_lock() is held using > cgroup_assert_mutex_or_rcu_locked(), there is a need to pass > cond to list_for_each_entry_rcu() to avoid false positive > lockdep warning. > > Signed-off-by: Madhuparna Bhowmik <madhuparnabhowmik10@gmail.com>
Applied to cgroup/for-5.7.
Thanks.
-- tejun
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