Messages in this thread | | | Date | Thu, 9 Dec 2021 21:47:16 -0500 | Subject | Re: [PATCH] mm/memcg: Properly handle memcg_stock access for PREEMPT_RT | From | Waiman Long <> |
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On 12/9/21 21:06, Waiman Long wrote: > Direct calls to local_irq_{save/restore}() and preempt_{enable/disable}() > are not appropriate for PREEMPT_RT. To provide better PREEMPT_RT support, > change local_irq_{save/restore}() to local_lock_irq{save/restore}() and > add a local_lock_t to struct memcg_stock_pcp. > > Also disable the task and interrupt context optimization for obj_stock as > there will be no performance gain in the case of PREEMPT_RT. In this case, > task obj_stock will be there but remain unused. > > Signed-off-by: Waiman Long <longman@redhat.com> > --- > mm/memcontrol.c | 41 ++++++++++++++++++++++------------------- > 1 file changed, 22 insertions(+), 19 deletions(-)
Sorry, this doesn't apply to linux-next as it conflicts with a previous patch that I sent out. Will send out a v2 soon.
-Longman
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