From: <gregkh@linuxfoundation.org>
To: maddy@linux.vnet.ibm.com, alexander.levin@verizon.com,
gregkh@linuxfoundation.org, mpe@ellerman.id.au
Cc: <stable@vger.kernel.org>, <stable-commits@vger.kernel.org>
Subject: Patch "powerpc/perf: Fix pmu_count to count only nest imc pmus" has been added to the 4.14-stable tree
Date: Tue, 12 Dec 2017 11:11:34 +0100 [thread overview]
Message-ID: <151307349417833@kroah.com> (raw)
This is a note to let you know that I've just added the patch titled
powerpc/perf: Fix pmu_count to count only nest imc pmus
to the 4.14-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
powerpc-perf-fix-pmu_count-to-count-only-nest-imc-pmus.patch
and it can be found in the queue-4.14 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.
>From foo@baz Tue Dec 12 10:32:42 CET 2017
From: Madhavan Srinivasan <maddy@linux.vnet.ibm.com>
Date: Wed, 22 Nov 2017 10:45:38 +0530
Subject: powerpc/perf: Fix pmu_count to count only nest imc pmus
From: Madhavan Srinivasan <maddy@linux.vnet.ibm.com>
[ Upstream commit de34787f1096cce38e2590be0013b44418d14546 ]
"pmu_count" in opal_imc_counters_probe() is intended to hold
the number of successful nest imc pmu registerations. But
current code also counts other imc units like core_imc and
thread_imc. Patch add a check to count only nest imc pmus.
Signed-off-by: Madhavan Srinivasan <maddy@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
arch/powerpc/platforms/powernv/opal-imc.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
--- a/arch/powerpc/platforms/powernv/opal-imc.c
+++ b/arch/powerpc/platforms/powernv/opal-imc.c
@@ -191,8 +191,10 @@ static int opal_imc_counters_probe(struc
break;
}
- if (!imc_pmu_create(imc_dev, pmu_count, domain))
- pmu_count++;
+ if (!imc_pmu_create(imc_dev, pmu_count, domain)) {
+ if (domain == IMC_DOMAIN_NEST)
+ pmu_count++;
+ }
}
return 0;
Patches currently in stable-queue which might be from maddy@linux.vnet.ibm.com are
queue-4.14/powerpc-perf-fix-pmu_count-to-count-only-nest-imc-pmus.patch
reply other threads:[~2017-12-12 10:13 UTC|newest]
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