diff options
Diffstat (limited to 'arch/x86/kernel')
-rw-r--r-- | arch/x86/kernel/process_32.c | 8 | ||||
-rw-r--r-- | arch/x86/kernel/process_64.c | 8 |
2 files changed, 0 insertions, 16 deletions
diff --git a/arch/x86/kernel/process_32.c b/arch/x86/kernel/process_32.c index 737527b40e5b..9f950917528b 100644 --- a/arch/x86/kernel/process_32.c +++ b/arch/x86/kernel/process_32.c @@ -280,14 +280,6 @@ __switch_to(struct task_struct *prev_p, struct task_struct *next_p) set_iopl_mask(next->iopl); /* - * If it were not for PREEMPT_ACTIVE we could guarantee that the - * preempt_count of all tasks was equal here and this would not be - * needed. - */ - task_thread_info(prev_p)->saved_preempt_count = this_cpu_read(__preempt_count); - this_cpu_write(__preempt_count, task_thread_info(next_p)->saved_preempt_count); - - /* * Now maybe handle debug registers and/or IO bitmaps */ if (unlikely(task_thread_info(prev_p)->flags & _TIF_WORK_CTXSW_PREV || diff --git a/arch/x86/kernel/process_64.c b/arch/x86/kernel/process_64.c index b35921a670b2..d7f1d5c4387d 100644 --- a/arch/x86/kernel/process_64.c +++ b/arch/x86/kernel/process_64.c @@ -401,14 +401,6 @@ __switch_to(struct task_struct *prev_p, struct task_struct *next_p) */ this_cpu_write(current_task, next_p); - /* - * If it were not for PREEMPT_ACTIVE we could guarantee that the - * preempt_count of all tasks was equal here and this would not be - * needed. - */ - task_thread_info(prev_p)->saved_preempt_count = this_cpu_read(__preempt_count); - this_cpu_write(__preempt_count, task_thread_info(next_p)->saved_preempt_count); - /* Reload esp0 and ss1. This changes current_thread_info(). */ load_sp0(tss, next); |