http://www.ousob.com --- Legacy Redefined OuSob - File: /wwwroot/clipx/usr/include/asm-i386/mmu_context.h

#ifndef __I386_SCHED_H #define __I386_SCHED_H #include <linux/config.h> #include <asm/desc.h> #include <asm/atomic.h> #include <asm/pgalloc.h> #include <asm/tlbflush.h> /* * Used for LDT copy/destruction. */ int init_new_context(struct task_struct *tsk, struct mm_struct *mm); void destroy_context(struct mm_struct *mm); static inline void enter_lazy_tlb(struct mm_struct *mm, struct task_struct *tsk) { #ifdef CONFIG_SMP unsigned cpu = smp_processor_id(); if (per_cpu(cpu_tlbstate, cpu).state == TLBSTATE_OK) per_cpu(cpu_tlbstate, cpu).state = TLBSTATE_LAZY; #endif } static inline void switch_mm(struct mm_struct *prev, struct mm_struct *next, struct task_struct *tsk) { int cpu = smp_processor_id(); if (likely(prev != next)) { /* stop flush ipis for the previous mm */ cpu_clear(cpu, prev->cpu_vm_mask); #ifdef CONFIG_SMP per_cpu(cpu_tlbstate, cpu).state = TLBSTATE_OK; per_cpu(cpu_tlbstate, cpu).active_mm = next; #endif cpu_set(cpu, next->cpu_vm_mask); /* Re-load page tables */ load_cr3(next->pgd); /* * load the LDT, if the LDT is different: */ if (unlikely(prev->context.ldt != next->context.ldt)) load_LDT_nolock(&next->context, cpu); } #ifdef CONFIG_SMP else { per_cpu(cpu_tlbstate, cpu).state = TLBSTATE_OK; BUG_ON(per_cpu(cpu_tlbstate, cpu).active_mm != next); if (!cpu_test_and_set(cpu, next->cpu_vm_mask)) { /* We were in lazy tlb mode and leave_mm disabled * tlb flush IPI delivery. We must reload %cr3. */ load_cr3(next->pgd); load_LDT_nolock(&next->context, cpu); } } #endif } #define deactivate_mm(tsk, mm) \ asm("movl %0,%%fs ; movl %0,%%gs": :"r" (0)) #define activate_mm(prev, next) \ switch_mm((prev),(next),NULL) #endif