linux-kernel - [PATCH 07/14] [POWERPC] Populate cpu_enabled

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Mon, 14 Jul 2008 20:34:20 -0600
From:	Alex Chiang <achiang@...com>
To:	linux-kernel@...r.kernel.org, linux-arch@...r.kernel.org
Cc:	linux-acpi@...r.kernel.org, Alex Chiang <achiang@...com>,
	Paul Mackerras <paulus@...ba.org>,
	Benjamin Herrenschmidt <benh@...nel.crashing.org>
Subject: [PATCH 07/14] [POWERPC] Populate cpu_enabled_map

Populate the cpu_enabled_map correctly.

Note that this patch does not actually make any decisions based
on the contents of the map.

However, as the map is presented via sysfs in:

	/sys/devices/system/cpu/

It should be populated correctly.

Signed-off-by: Alex Chiang <achiang@...com>
Cc: Paul Mackerras <paulus@...ba.org>
Cc: Benjamin Herrenschmidt <benh@...nel.crashing.org>
---

 arch/powerpc/kernel/setup-common.c           |    1 +
 arch/powerpc/platforms/powermac/smp.c        |    1 +
 arch/powerpc/platforms/pseries/hotplug-cpu.c |    2 ++
 3 files changed, 4 insertions(+), 0 deletions(-)

diff --git a/arch/powerpc/kernel/setup-common.c b/arch/powerpc/kernel/setup-common.c
index db540ea..a4c894a 100644
--- a/arch/powerpc/kernel/setup-common.c
+++ b/arch/powerpc/kernel/setup-common.c
@@ -413,6 +413,7 @@ void __init smp_setup_cpu_maps(void)
 			DBG("    thread %d -> cpu %d (hard id %d)\n",
 			    j, cpu, intserv[j]);
 			cpu_set(cpu, cpu_present_map);
+			cpu_set(cpu, cpu_enabled_map);
 			set_hard_smp_processor_id(cpu, intserv[j]);
 			cpu_set(cpu, cpu_possible_map);
 			cpu++;
diff --git a/arch/powerpc/platforms/powermac/smp.c b/arch/powerpc/platforms/powermac/smp.c
index cb2d894..a74dada 100644
--- a/arch/powerpc/platforms/powermac/smp.c
+++ b/arch/powerpc/platforms/powermac/smp.c
@@ -317,6 +317,7 @@ static int __init smp_psurge_probe(void)
 		ncpus = NR_CPUS;
 	for (i = 1; i < ncpus ; ++i) {
 		cpu_set(i, cpu_present_map);
+		cpu_set(i, cpu_enabled_map);
 		set_hard_smp_processor_id(i, i);
 	}
 
diff --git a/arch/powerpc/platforms/pseries/hotplug-cpu.c b/arch/powerpc/platforms/pseries/hotplug-cpu.c
index 1f03248..e738b07 100644
--- a/arch/powerpc/platforms/pseries/hotplug-cpu.c
+++ b/arch/powerpc/platforms/pseries/hotplug-cpu.c
@@ -186,6 +186,7 @@ static int pseries_add_processor(struct device_node *np)
 	for_each_cpu_mask(cpu, tmp) {
 		BUG_ON(cpu_isset(cpu, cpu_present_map));
 		cpu_set(cpu, cpu_present_map);
+		cpu_set(cpu, cpu_enabled_map);
 		set_hard_smp_processor_id(cpu, *intserv++);
 	}
 	err = 0;
@@ -218,6 +219,7 @@ static void pseries_remove_processor(struct device_node *np)
 				continue;
 			BUG_ON(cpu_online(cpu));
 			cpu_clear(cpu, cpu_present_map);
+			cpu_clear(cpu, cpu_enabled_map);
 			set_hard_smp_processor_id(cpu, -1);
 			break;
 		}

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/