diff options
| author | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2015-12-15 14:52:16 -0300 |
|---|---|---|
| committer | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2015-12-15 14:52:16 -0300 |
| commit | 8d91c1e411f55d7ea91b1183a2e9f8088fb4d5be (patch) | |
| tree | e9891aa6c295060d065adffd610c4f49ecf884f3 /arch/tile/include/asm/switch_to.h | |
| parent | a71852147516bc1cb5b0b3cbd13639bfd4022dc8 (diff) | |
Linux-libre 4.3.2-gnu
Diffstat (limited to 'arch/tile/include/asm/switch_to.h')
| -rw-r--r-- | arch/tile/include/asm/switch_to.h | 8 |
1 files changed, 3 insertions, 5 deletions
diff --git a/arch/tile/include/asm/switch_to.h b/arch/tile/include/asm/switch_to.h index b8f888cbe..34ee72705 100644 --- a/arch/tile/include/asm/switch_to.h +++ b/arch/tile/include/asm/switch_to.h @@ -53,15 +53,13 @@ extern unsigned long get_switch_to_pc(void); * Kernel threads can check to see if they need to migrate their * stack whenever they return from a context switch; for user * threads, we defer until they are returning to user-space. + * We defer homecache migration until the runqueue lock is released. */ -#define finish_arch_switch(prev) do { \ - if (unlikely((prev)->state == TASK_DEAD)) \ - __insn_mtspr(SPR_SIM_CONTROL, SIM_CONTROL_OS_EXIT | \ - ((prev)->pid << _SIM_CONTROL_OPERATOR_BITS)); \ +#define finish_arch_post_lock_switch() do { \ __insn_mtspr(SPR_SIM_CONTROL, SIM_CONTROL_OS_SWITCH | \ (current->pid << _SIM_CONTROL_OPERATOR_BITS)); \ if (current->mm == NULL && !kstack_hash && \ - current_thread_info()->homecache_cpu != smp_processor_id()) \ + current_thread_info()->homecache_cpu != raw_smp_processor_id()) \ homecache_migrate_kthread(); \ } while (0) |