[RFC][PATCH] sched: Rename DIE domain

From: Peter Zijlstra
Date: Wed Jul 12 2023 - 10:11:41 EST


Hi

Thomas just tripped over the x86 topology setup creating a 'DIE' domain
for the package mask :-)

Since these names are SCHED_DEBUG only, rename them.
I don't think anybody *should* be relying on this, but who knows.

Signed-off-by: Peter Zijlstra (Intel) <peterz@xxxxxxxxxxxxx>
---
arch/powerpc/kernel/smp.c | 2 +-
arch/s390/kernel/topology.c | 2 +-
arch/x86/kernel/smpboot.c | 2 +-
kernel/sched/topology.c | 2 +-
4 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/arch/powerpc/kernel/smp.c b/arch/powerpc/kernel/smp.c
index fbbb695bae3d..5ed6b9fe5094 100644
--- a/arch/powerpc/kernel/smp.c
+++ b/arch/powerpc/kernel/smp.c
@@ -1050,7 +1050,7 @@ static struct sched_domain_topology_level powerpc_topology[] = {
#endif
{ shared_cache_mask, powerpc_shared_cache_flags, SD_INIT_NAME(CACHE) },
{ cpu_mc_mask, SD_INIT_NAME(MC) },
- { cpu_cpu_mask, SD_INIT_NAME(DIE) },
+ { cpu_cpu_mask, SD_INIT_NAME(PKG) },
{ NULL, },
};

diff --git a/arch/s390/kernel/topology.c b/arch/s390/kernel/topology.c
index 68adf1de8888..c803f5e6ab46 100644
--- a/arch/s390/kernel/topology.c
+++ b/arch/s390/kernel/topology.c
@@ -522,7 +522,7 @@ static struct sched_domain_topology_level s390_topology[] = {
{ cpu_coregroup_mask, cpu_core_flags, SD_INIT_NAME(MC) },
{ cpu_book_mask, SD_INIT_NAME(BOOK) },
{ cpu_drawer_mask, SD_INIT_NAME(DRAWER) },
- { cpu_cpu_mask, SD_INIT_NAME(DIE) },
+ { cpu_cpu_mask, SD_INIT_NAME(PKG) },
{ NULL, },
};

diff --git a/arch/x86/kernel/smpboot.c b/arch/x86/kernel/smpboot.c
index e1aa2cd7734b..09cc9d0aa358 100644
--- a/arch/x86/kernel/smpboot.c
+++ b/arch/x86/kernel/smpboot.c
@@ -653,7 +653,7 @@ static void __init build_sched_topology(void)
*/
if (!x86_has_numa_in_package) {
x86_topology[i++] = (struct sched_domain_topology_level){
- cpu_cpu_mask, SD_INIT_NAME(DIE)
+ cpu_cpu_mask, SD_INIT_NAME(PKG)
};
}

diff --git a/kernel/sched/topology.c b/kernel/sched/topology.c
index d3a3b2646ec4..e9d9cf776b7a 100644
--- a/kernel/sched/topology.c
+++ b/kernel/sched/topology.c
@@ -1670,7 +1670,7 @@ static struct sched_domain_topology_level default_topology[] = {
#ifdef CONFIG_SCHED_MC
{ cpu_coregroup_mask, cpu_core_flags, SD_INIT_NAME(MC) },
#endif
- { cpu_cpu_mask, SD_INIT_NAME(DIE) },
+ { cpu_cpu_mask, SD_INIT_NAME(PKG) },
{ NULL, },
};