From: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
To: Michael Ellerman <mpe@ellerman.id.au>
Cc: Nathan Lynch <nathanl@linux.ibm.com>,
Gautham R Shenoy <ego@linux.vnet.ibm.com>,
Vincent Guittot <vincent.guittot@linaro.org>,
Srikar Dronamraju <srikar@linux.vnet.ibm.com>,
Peter Zijlstra <peterz@infradead.org>,
Geetika Moolchandani <Geetika.Moolchandani1@ibm.com>,
Ingo Molnar <mingo@kernel.org>,
Laurent Dufour <ldufour@linux.ibm.com>,
linuxppc-dev <linuxppc-dev@lists.ozlabs.org>,
Valentin Schneider <valentin.schneider@arm.com>
Subject: [PATCH v2 1/3] powerpc/numa: Print debug statements only when required
Date: Sat, 21 Aug 2021 15:55:33 +0530 [thread overview]
Message-ID: <20210821102535.169643-2-srikar@linux.vnet.ibm.com> (raw)
In-Reply-To: <20210821102535.169643-1-srikar@linux.vnet.ibm.com>
Currently, a debug message gets printed every time an attempt to
add(remove) a CPU. However this is redundant if the CPU is already added
(removed) from the node.
Cc: linuxppc-dev@lists.ozlabs.org
Cc: Nathan Lynch <nathanl@linux.ibm.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Valentin Schneider <valentin.schneider@arm.com>
Cc: Gautham R Shenoy <ego@linux.vnet.ibm.com>
Cc: Vincent Guittot <vincent.guittot@linaro.org>
Cc: Geetika Moolchandani <Geetika.Moolchandani1@ibm.com>
Cc: Laurent Dufour <ldufour@linux.ibm.com>
Signed-off-by: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
---
arch/powerpc/mm/numa.c | 11 +++++------
1 file changed, 5 insertions(+), 6 deletions(-)
diff --git a/arch/powerpc/mm/numa.c b/arch/powerpc/mm/numa.c
index f2bf98bdcea2..fbe03f6840e0 100644
--- a/arch/powerpc/mm/numa.c
+++ b/arch/powerpc/mm/numa.c
@@ -141,10 +141,11 @@ static void map_cpu_to_node(int cpu, int node)
{
update_numa_cpu_lookup_table(cpu, node);
- dbg("adding cpu %d to node %d\n", cpu, node);
- if (!(cpumask_test_cpu(cpu, node_to_cpumask_map[node])))
+ if (!(cpumask_test_cpu(cpu, node_to_cpumask_map[node]))) {
+ dbg("adding cpu %d to node %d\n", cpu, node);
cpumask_set_cpu(cpu, node_to_cpumask_map[node]);
+ }
}
#if defined(CONFIG_HOTPLUG_CPU) || defined(CONFIG_PPC_SPLPAR)
@@ -152,13 +153,11 @@ static void unmap_cpu_from_node(unsigned long cpu)
{
int node = numa_cpu_lookup_table[cpu];
- dbg("removing cpu %lu from node %d\n", cpu, node);
-
if (cpumask_test_cpu(cpu, node_to_cpumask_map[node])) {
cpumask_clear_cpu(cpu, node_to_cpumask_map[node]);
+ dbg("removing cpu %lu from node %d\n", cpu, node);
} else {
- printk(KERN_ERR "WARNING: cpu %lu not found in node %d\n",
- cpu, node);
+ pr_err("WARNING: cpu %lu not found in node %d\n", cpu, node);
}
}
#endif /* CONFIG_HOTPLUG_CPU || CONFIG_PPC_SPLPAR */
--
2.18.2
next prev parent reply other threads:[~2021-08-21 10:27 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-08-21 10:25 [PATCH v2 0/3] Updates to powerpc for robust CPU online/offline Srikar Dronamraju
2021-08-21 10:25 ` Srikar Dronamraju [this message]
2021-08-23 9:21 ` [PATCH v2 1/3] powerpc/numa: Print debug statements only when required Laurent Dufour
2021-08-23 9:38 ` Srikar Dronamraju
2021-08-25 13:01 ` Michael Ellerman
2021-08-26 4:47 ` Srikar Dronamraju
2021-08-21 10:25 ` [PATCH v2 2/3] powerpc/numa: Update cpu_cpu_map on CPU online/offline Srikar Dronamraju
2021-08-21 10:25 ` [PATCH v2 3/3] powerpc/numa: Fill distance_lookup_table for offline nodes Srikar Dronamraju
2021-08-26 13:36 ` Michael Ellerman
2021-09-01 10:22 ` Srikar Dronamraju
2021-09-23 11:17 ` Michael Ellerman
2021-09-23 17:57 ` Srikar Dronamraju
2021-10-11 11:45 ` Michael Ellerman
2021-08-23 8:33 ` [PATCH v2 0/3] Updates to powerpc for robust CPU online/offline Peter Zijlstra
2021-08-23 9:34 ` Srikar Dronamraju
2021-08-23 9:37 ` Peter Zijlstra
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