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| author | Alexander Gordeev <agordeev@linux.ibm.com> | 2020-03-12 13:32:23 +0300 |
|---|---|---|
| committer | Vasily Gorbik <gor@linux.ibm.com> | 2020-03-23 15:41:54 +0300 |
| commit | 52aeda7accb6d2e511a1b89142cbbf6fd2c12565 (patch) | |
| tree | 53118aca208bce826758e4cb87a7a4ce75bbd282 /arch/s390/include/asm/topology.h | |
| parent | cd8e702f0db75f28d0fbdc574a8fcda4aca0b09b (diff) | |
| download | linux-52aeda7accb6d2e511a1b89142cbbf6fd2c12565.tar.xz | |
s390/topology: remove offline CPUs from CPU topology masks
The CPU topology masks on s390 contain also bits of CPUs which
are offline. Currently this is already a problem, since common
code scheduler expects e.g. cpu_smt_mask() to reflect reality.
This update changes the described behaviour and s390 starts to
behave like all other architectures.
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
Reviewed-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Diffstat (limited to 'arch/s390/include/asm/topology.h')
| -rw-r--r-- | arch/s390/include/asm/topology.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/s390/include/asm/topology.h b/arch/s390/include/asm/topology.h index 4648303e6958..56b14616fb6b 100644 --- a/arch/s390/include/asm/topology.h +++ b/arch/s390/include/asm/topology.h @@ -43,6 +43,7 @@ int topology_cpu_init(struct cpu *); int topology_set_cpu_management(int fc); void topology_schedule_update(void); void store_topology(struct sysinfo_15_1_x *info); +void update_cpu_masks(void); void topology_expect_change(void); const struct cpumask *cpu_coregroup_mask(int cpu); @@ -52,6 +53,7 @@ static inline void topology_init_early(void) { } static inline void topology_schedule_update(void) { } static inline int topology_cpu_init(struct cpu *cpu) { return 0; } static inline int topology_cpu_dedicated(int cpu_nr) { return 0; } +static inline void update_cpu_masks(void) { } static inline void topology_expect_change(void) { } #endif /* CONFIG_SCHED_TOPOLOGY */ |