[0/5] perf: oprofile spring cleanup

Message

Marc Zyngier April 14, 2021, 1:44 p.m. UTC

This small series builds on top of the work that was started with [1].

It recently became apparent that KVM/arm64 is the last bit of the
kernel that still uses perf_num_counters().

As I went ahead to address this, it became obvious that all traces of
oprofile had been eradicated from all architectures but arm64, s390
and sh (plus a bit of cruft in the core perf code). With KVM fixed,
perf_num_counters() and perf_pmu_name() are finally gone.

Thanks,

	M.

[1] https://lore.kernel.org/lkml/20210215050618.hgftdmfmslbdrg3j@vireshk-i7

Marc Zyngier (5):
  KVM: arm64: Divorce the perf code from oprofile helpers
  arm64: Get rid of oprofile leftovers
  s390: Get rid of oprofile leftovers
  sh: Get rid of oprofile leftovers
  perf: Get rid of oprofile leftovers

 arch/arm64/kvm/perf.c         |  7 +------
 arch/arm64/kvm/pmu-emul.c     |  2 +-
 arch/s390/kernel/perf_event.c | 21 ---------------------
 arch/sh/kernel/perf_event.c   | 18 ------------------
 drivers/perf/arm_pmu.c        | 30 ------------------------------
 include/kvm/arm_pmu.h         |  4 ++++
 include/linux/perf_event.h    |  2 --
 kernel/events/core.c          |  5 -----
 8 files changed, 6 insertions(+), 83 deletions(-)

Comments

Marc Zyngier April 22, 2021, 12:48 p.m. UTC | #1

On Wed, 14 Apr 2021 14:44:04 +0100, Marc Zyngier wrote:
> This small series builds on top of the work that was started with [1].
> 
> It recently became apparent that KVM/arm64 is the last bit of the
> kernel that still uses perf_num_counters().
> 
> As I went ahead to address this, it became obvious that all traces of
> oprofile had been eradicated from all architectures but arm64, s390
> and sh (plus a bit of cruft in the core perf code). With KVM fixed,
> perf_num_counters() and perf_pmu_name() are finally gone.
> 
> [...]

Applied to kvm-arm64/kill_oprofile_dependency, thanks!

[1/5] KVM: arm64: Divorce the perf code from oprofile helpers
      commit: 5421db1be3b11c5e469cce3760d5c8a013a90f2c
[2/5] arm64: Get rid of oprofile leftovers
      commit: e9c74a686a45e54b2e1c4586b14c84f3ee2f2014
[3/5] s390: Get rid of oprofile leftovers
      commit: 8c3f7913a106aa8b94d331cb59709c84a9a1d55b
[4/5] sh: Get rid of oprofile leftovers
      commit: ac21ecf5ad32b89909bee2b50161ce93d6462b7d
[5/5] perf: Get rid of oprofile leftovers
      commit: 7f318847a0f37b96d8927e8d30ae7b8f149b11f1

Cheers,

	M.