Pull context-bitmap into release branch

[mv-sheeva.git] / arch / um / kernel / process_kern.c

diff --git a/arch/um/kernel/process_kern.c b/arch/um/kernel/process_kern.c
index 1143f5e522b2ce68c9c4d8a62b55b841b2e11de2..34b54a3e21327f06fa2e706a7ec0a23655e1d37c 100644 (file)
--- a/arch/um/kernel/process_kern.c
+++ b/arch/um/kernel/process_kern.c
@@ -80,9 +80,10 @@ void free_stack(unsigned long stack, int order)
 unsigned long alloc_stack(int order, int atomic)
 {
        unsigned long page;
-       int flags = GFP_KERNEL;
+       gfp_t flags = GFP_KERNEL;
 
-       if(atomic) flags |= GFP_ATOMIC;
+       if (atomic)
+               flags = GFP_ATOMIC;
        page = __get_free_pages(flags, order);
        if(page == 0)
                return(0);
@@ -119,7 +120,14 @@ void *_switch_to(void *prev, void *next, void *last)
         to->thread.prev_sched = from;
         set_current(to);
 
-       CHOOSE_MODE_PROC(switch_to_tt, switch_to_skas, prev, next);
+       do {
+               current->thread.saved_task = NULL ;
+               CHOOSE_MODE_PROC(switch_to_tt, switch_to_skas, prev, next);
+               if(current->thread.saved_task)
+                       show_regs(&(current->thread.regs));
+               next= current->thread.saved_task;
+               prev= current;
+       } while(current->thread.saved_task);
 
         return(current->thread.prev_sched);
 
@@ -214,6 +222,7 @@ void *um_virt_to_phys(struct task_struct *task, unsigned long addr,
        pud_t *pud;
        pmd_t *pmd;
        pte_t *pte;
+       pte_t ptent;
 
        if(task->mm == NULL) 
                return(ERR_PTR(-EINVAL));
@@ -230,12 +239,13 @@ void *um_virt_to_phys(struct task_struct *task, unsigned long addr,
                return(ERR_PTR(-EINVAL));
 
        pte = pte_offset_kernel(pmd, addr);
-       if(!pte_present(*pte)) 
+       ptent = *pte;
+       if(!pte_present(ptent))
                return(ERR_PTR(-EINVAL));
 
        if(pte_out != NULL)
-               *pte_out = *pte;
-       return((void *) (pte_val(*pte) & PAGE_MASK) + (addr & ~PAGE_MASK));
+               *pte_out = ptent;
+       return((void *) (pte_val(ptent) & PAGE_MASK) + (addr & ~PAGE_MASK));
 }
 
 char *current_cmd(void)