Make page->private usable in compound pages

[powerpc.git] / arch / ia64 / mm / init.c

diff --git a/arch/ia64/mm/init.c b/arch/ia64/mm/init.c
index f225dd7..2da8411 100644 (file)
--- a/arch/ia64/mm/init.c
+++ b/arch/ia64/mm/init.c
@@ -121,7 +121,7 @@ lazy_mmu_prot_update (pte_t pte)
                return;                         /* i-cache is already coherent with d-cache */
 
        if (PageCompound(page)) {
-               order = (unsigned long) (page[1].lru.prev);
+               order = compound_order(page);
                flush_icache_range(addr, addr + (1UL << order << PAGE_SHIFT));
        }
        else
@@ -155,7 +155,7 @@ ia64_set_rbs_bot (void)
 
        if (stack_size > MAX_USER_STACK_SIZE)
                stack_size = MAX_USER_STACK_SIZE;
-       current->thread.rbs_bot = STACK_TOP - stack_size;
+       current->thread.rbs_bot = PAGE_ALIGN(current->mm->start_stack - stack_size);
 }
 
 /*
@@ -648,6 +648,22 @@ count_reserved_pages (u64 start, u64 end, void *arg)
        return 0;
 }
 
+int
+find_max_min_low_pfn (unsigned long start, unsigned long end, void *arg)
+{
+       unsigned long pfn_start, pfn_end;
+#ifdef CONFIG_FLATMEM
+       pfn_start = (PAGE_ALIGN(__pa(start))) >> PAGE_SHIFT;
+       pfn_end = (PAGE_ALIGN(__pa(end - 1))) >> PAGE_SHIFT;
+#else
+       pfn_start = GRANULEROUNDDOWN(__pa(start)) >> PAGE_SHIFT;
+       pfn_end = GRANULEROUNDUP(__pa(end - 1)) >> PAGE_SHIFT;
+#endif
+       min_low_pfn = min(min_low_pfn, pfn_start);
+       max_low_pfn = max(max_low_pfn, pfn_end);
+       return 0;
+}
+
 /*
  * Boot command-line option "nolwsys" can be used to disable the use of any light-weight
  * system call handler.  When this option is in effect, all fsyscalls will end up bubbling