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authorGravatar Alex Belits <abelits@marvell.com> 2020-06-25 18:34:43 -0400
committerGravatar Peter Zijlstra <peterz@infradead.org> 2020-07-08 11:39:02 +0200
commit07bbecb3410617816a99e76a2df7576507a0c8ad (patch)
tree864c69321b1bd33c6196cf9f0628c5ce55b574b0 /kernel/sched/fair.c
parentPCI: Restrict probe functions to housekeeping CPUs (diff)
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net: Restrict receive packets queuing to housekeeping CPUs
With the existing implementation of store_rps_map(), packets are queued in the receive path on the backlog queues of other CPUs irrespective of whether they are isolated or not. This could add a latency overhead to any RT workload that is running on the same CPU. Ensure that store_rps_map() only uses available housekeeping CPUs for storing the rps_map. Signed-off-by: Alex Belits <abelits@marvell.com> Signed-off-by: Nitesh Narayan Lal <nitesh@redhat.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Link: https://lkml.kernel.org/r/20200625223443.2684-4-nitesh@redhat.com
Diffstat (limited to 'kernel/sched/fair.c')
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