mbox series

[v3,0/4] coresight: Do not call smp_processor_id from preemptible contexts

Message ID 1559235267-25232-1-git-send-email-suzuki.poulose@arm.com
Headers show
Series coresight: Do not call smp_processor_id from preemptible contexts | expand

Message

Suzuki K Poulose May 30, 2019, 4:54 p.m. UTC 
We have a few places where we call smp_processor_id() from preemptible
contexts during the perf buffer handling. We do this to figure out the
numa node for the allocation in case the event is not CPU bound. Use
numa_node_id() instead in such cases to avoid a splat.

Changes since V2:
 - Use NUMA_NO_NODE instead of numa_node_id() for event->cpu == -1. (Robin Murphy)

Suzuki K Poulose (4):
  coresight: tmc-etr: Do not call smp_processor_id() from preemptible
  coresight: tmc-etr: alloc_perf_buf: Do not call smp_processor_id from
    preemptible
  coresight: tmc-etf: Do not call smp_processor_id from preemptible
  coresight: etb10: Do not call smp_processor_id from preemptible

 drivers/hwtracing/coresight/coresight-etb10.c   |  6 ++----
 drivers/hwtracing/coresight/coresight-tmc-etf.c |  6 ++----
 drivers/hwtracing/coresight/coresight-tmc-etr.c | 13 ++++---------
 3 files changed, 8 insertions(+), 17 deletions(-)

-- 
2.7.4