diff options
author | Nathan Lynch <ntl@pobox.com> | 2005-06-28 06:55:25 -0400 |
---|---|---|
committer | Paul Mackerras <paulus@samba.org> | 2005-06-28 06:55:25 -0400 |
commit | f5f1cc5437961a4bd93d615099f26780819e72d3 (patch) | |
tree | 7daa443dbcb5cda9e057a818168102abe48d3b8c /arch | |
parent | a341ad97245d01c923995cfe7deacd0c8aee6e16 (diff) |
[PATCH] ppc64: don't create spurious symlinks under node0 sysdev
On partitioned systems we can wind up creating spurious symlinks in
/sys/devices/system/node/node0 to non-present cpus. The symlinks are
not broken; the problem is that we're potentially misinforming
userspace that there is a relationship between node0 and cpus which
are to be added later. There's no guarantee at all that a cpu which
is added later will belong to node 0.
Signed-off-by: Nathan Lynch <ntl@pobox.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'arch')
-rw-r--r-- | arch/ppc64/kernel/sysfs.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/arch/ppc64/kernel/sysfs.c b/arch/ppc64/kernel/sysfs.c index c8fa6569b2fd..2f704a2cafb1 100644 --- a/arch/ppc64/kernel/sysfs.c +++ b/arch/ppc64/kernel/sysfs.c | |||
@@ -400,7 +400,12 @@ static int __init topology_init(void) | |||
400 | struct cpu *c = &per_cpu(cpu_devices, cpu); | 400 | struct cpu *c = &per_cpu(cpu_devices, cpu); |
401 | 401 | ||
402 | #ifdef CONFIG_NUMA | 402 | #ifdef CONFIG_NUMA |
403 | parent = &node_devices[cpu_to_node(cpu)]; | 403 | /* The node to which a cpu belongs can't be known |
404 | * until the cpu is made present. | ||
405 | */ | ||
406 | parent = NULL; | ||
407 | if (cpu_present(cpu)) | ||
408 | parent = &node_devices[cpu_to_node(cpu)]; | ||
404 | #endif | 409 | #endif |
405 | /* | 410 | /* |
406 | * For now, we just see if the system supports making | 411 | * For now, we just see if the system supports making |