mm: variable length argument support

[sfrench/cifs-2.6.git] / arch / x86_64 / ia32 / ia32_binfmt.c

diff --git a/arch/x86_64/ia32/ia32_binfmt.c b/arch/x86_64/ia32/ia32_binfmt.c
index 185399baaf6d60df795831a202d4e73587584d90..ed56a8806eaba081efae13022bbceb32480bc2f4 100644 (file)
--- a/arch/x86_64/ia32/ia32_binfmt.c
+++ b/arch/x86_64/ia32/ia32_binfmt.c
@@ -232,9 +232,6 @@ do {                                                        \
 #define load_elf_binary load_elf32_binary
 
 #define ELF_PLAT_INIT(r, load_addr)    elf32_init(r)
-#define setup_arg_pages(bprm, stack_top, exec_stack) \
-       ia32_setup_arg_pages(bprm, stack_top, exec_stack)
-int ia32_setup_arg_pages(struct linux_binprm *bprm, unsigned long stack_top, int executable_stack);
 
 #undef start_thread
 #define start_thread(regs,new_rip,new_rsp) do { \
@@ -286,61 +283,6 @@ static void elf32_init(struct pt_regs *regs)
        me->thread.es = __USER_DS;
 }
 
-int ia32_setup_arg_pages(struct linux_binprm *bprm, unsigned long stack_top,
-                        int executable_stack)
-{
-       unsigned long stack_base;
-       struct vm_area_struct *mpnt;
-       struct mm_struct *mm = current->mm;
-       int i, ret;
-
-       stack_base = stack_top - MAX_ARG_PAGES * PAGE_SIZE;
-       mm->arg_start = bprm->p + stack_base;
-
-       bprm->p += stack_base;
-       if (bprm->loader)
-               bprm->loader += stack_base;
-       bprm->exec += stack_base;
-
-       mpnt = kmem_cache_zalloc(vm_area_cachep, GFP_KERNEL);
-       if (!mpnt) 
-               return -ENOMEM; 
-
-       down_write(&mm->mmap_sem);
-       {
-               mpnt->vm_mm = mm;
-               mpnt->vm_start = PAGE_MASK & (unsigned long) bprm->p;
-               mpnt->vm_end = stack_top;
-               if (executable_stack == EXSTACK_ENABLE_X)
-                       mpnt->vm_flags = VM_STACK_FLAGS |  VM_EXEC;
-               else if (executable_stack == EXSTACK_DISABLE_X)
-                       mpnt->vm_flags = VM_STACK_FLAGS & ~VM_EXEC;
-               else
-                       mpnt->vm_flags = VM_STACK_FLAGS;
-               mpnt->vm_page_prot = (mpnt->vm_flags & VM_EXEC) ? 
-                       PAGE_COPY_EXEC : PAGE_COPY;
-               if ((ret = insert_vm_struct(mm, mpnt))) {
-                       up_write(&mm->mmap_sem);
-                       kmem_cache_free(vm_area_cachep, mpnt);
-                       return ret;
-               }
-               mm->stack_vm = mm->total_vm = vma_pages(mpnt);
-       } 
-
-       for (i = 0 ; i < MAX_ARG_PAGES ; i++) {
-               struct page *page = bprm->page[i];
-               if (page) {
-                       bprm->page[i] = NULL;
-                       install_arg_page(mpnt, page, stack_base);
-               }
-               stack_base += PAGE_SIZE;
-       }
-       up_write(&mm->mmap_sem);
-       
-       return 0;
-}
-EXPORT_SYMBOL(ia32_setup_arg_pages);
-
 #ifdef CONFIG_SYSCTL
 /* Register vsyscall32 into the ABI table */
 #include <linux/sysctl.h>