Messages in this thread | | | Date | Wed, 20 Mar 2019 11:02:49 +1100 | From | Stephen Rothwell <> | Subject | Re: [PATCH v6 1/7] psi: introduce state_mask to represent stalled psi states |
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Hi Suren,
On Tue, 19 Mar 2019 16:56:13 -0700 Suren Baghdasaryan <surenb@google.com> wrote: > > The psi monitoring patches will need to determine the same states as > record_times(). To avoid calculating them twice, maintain a state mask > that can be consulted cheaply. Do this in a separate patch to keep the > churn in the main feature patch at a minimum. > > This adds 4-byte state_mask member into psi_group_cpu struct which results > in its first cacheline-aligned part becoming 52 bytes long. Add explicit > values to enumeration element counters that affect psi_group_cpu struct > size. > > Link: http://lkml.kernel.org/r/20190124211518.244221-4-surenb@google.com > Signed-off-by: Suren Baghdasaryan <surenb@google.com> > Acked-by: Johannes Weiner <hannes@cmpxchg.org> > Cc: Dennis Zhou <dennis@kernel.org> > Cc: Ingo Molnar <mingo@redhat.com> > Cc: Jens Axboe <axboe@kernel.dk> > Cc: Li Zefan <lizefan@huawei.com> > Cc: Peter Zijlstra <peterz@infradead.org> > Cc: Tejun Heo <tj@kernel.org> > Signed-off-by: Andrew Morton <akpm@linux-foundation.org> > Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
This last SOB line should not be here ... it is only there on the original patch because I import Andrew's quilt series into linux-next.
-- Cheers, Stephen Rothwell [unhandled content-type:application/pgp-signature] | |