nfsd: nfsd should drop CAP_MKNOD for non-root

[safe/jmp/linux-2.6] / fs / binfmt_elf_fdpic.c

diff --git a/fs/binfmt_elf_fdpic.c b/fs/binfmt_elf_fdpic.c
index 45dabd5..f3e72c5 100644 (file)
--- a/fs/binfmt_elf_fdpic.c
+++ b/fs/binfmt_elf_fdpic.c
@@ -168,9 +168,6 @@ static int load_elf_fdpic_binary(struct linux_binprm *bprm,
        struct elf_fdpic_params exec_params, interp_params;
        struct elf_phdr *phdr;
        unsigned long stack_size, entryaddr;
-#ifndef CONFIG_MMU
-       unsigned long fullsize;
-#endif
 #ifdef ELF_FDPIC_PLAT_INIT
        unsigned long dynaddr;
 #endif
@@ -390,11 +387,6 @@ static int load_elf_fdpic_binary(struct linux_binprm *bprm,
                goto error_kill;
        }
 
-       /* expand the stack mapping to use up the entire allocation granule */
-       fullsize = kobjsize((char *) current->mm->start_brk);
-       if (!IS_ERR_VALUE(do_mremap(current->mm->start_brk, stack_size,
-                                   fullsize, 0, 0)))
-               stack_size = fullsize;
        up_write(&current->mm->mmap_sem);
 
        current->mm->brk = current->mm->start_brk;
@@ -404,7 +396,7 @@ static int load_elf_fdpic_binary(struct linux_binprm *bprm,
        current->mm->start_stack = current->mm->start_brk + stack_size;
 #endif
 
-       compute_creds(bprm);
+       install_exec_creds(bprm);
        current->flags &= ~PF_FORKNOEXEC;
        if (create_elf_fdpic_tables(bprm, current->mm,
                                    &exec_params, &interp_params) < 0)
@@ -1567,11 +1559,9 @@ end_coredump:
 static int elf_fdpic_dump_segments(struct file *file, size_t *size,
                           unsigned long *limit, unsigned long mm_flags)
 {
-       struct vm_list_struct *vml;
-
-       for (vml = current->mm->context.vmlist; vml; vml = vml->next) {
-       struct vm_area_struct *vma = vml->vma;
+       struct vm_area_struct *vma;
 
+       for (vma = current->mm->mmap; vma; vma = vma->vm_next) {
                if (!maydump(vma, mm_flags))
                        continue;
 
@@ -1617,9 +1607,6 @@ static int elf_fdpic_core_dump(long signr, struct pt_regs *regs,
        elf_fpxregset_t *xfpu = NULL;
 #endif
        int thread_status_size = 0;
-#ifndef CONFIG_MMU
-       struct vm_list_struct *vml;
-#endif
        elf_addr_t *auxv;
        unsigned long mm_flags;
 
@@ -1685,13 +1672,7 @@ static int elf_fdpic_core_dump(long signr, struct pt_regs *regs,
        fill_prstatus(prstatus, current, signr);
        elf_core_copy_regs(&prstatus->pr_reg, regs);
 
-#ifdef CONFIG_MMU
        segs = current->mm->map_count;
-#else
-       segs = 0;
-       for (vml = current->mm->context.vmlist; vml; vml = vml->next)
-           segs++;
-#endif
 #ifdef ELF_CORE_EXTRA_PHDRS
        segs += ELF_CORE_EXTRA_PHDRS;
 #endif
@@ -1766,20 +1747,10 @@ static int elf_fdpic_core_dump(long signr, struct pt_regs *regs,
        mm_flags = current->mm->flags;
 
        /* write program headers for segments dump */
-       for (
-#ifdef CONFIG_MMU
-               vma = current->mm->mmap; vma; vma = vma->vm_next
-#else
-                       vml = current->mm->context.vmlist; vml; vml = vml->next
-#endif
-            ) {
+       for (vma = current->mm->mmap; vma; vma = vma->vm_next) {
                struct elf_phdr phdr;
                size_t sz;
 
-#ifndef CONFIG_MMU
-               vma = vml->vma;
-#endif
-
                sz = vma->vm_end - vma->vm_start;
 
                phdr.p_type = PT_LOAD;