1 files changed, 6 insertions, 17 deletions

diff --git a/fs/binfmt_elf.c b/fs/binfmt_elf.c
index 48ffb3dc610a..16f735417072 100644
--- a/fs/binfmt_elf.c
+++ b/fs/binfmt_elf.c
@@ -82,9 +82,7 @@ static int set_brk(unsigned long start, unsigned long end)
         end = ELF_PAGEALIGN(end);
         if (end > start) {
                 unsigned long addr;
-                down_write(&current->mm->mmap_sem);
-                addr = do_brk(start, end - start);
-                up_write(&current->mm->mmap_sem);
+                addr = vm_brk(start, end - start);
                 if (BAD_ADDR(addr))
                         return addr;
         }
@@ -514,9 +512,7 @@ static unsigned long load_elf_interp(struct elfhdr *interp_elf_ex,
                 elf_bss = ELF_PAGESTART(elf_bss + ELF_MIN_ALIGN - 1);
 
                 /* Map the last of the bss segment */
-                down_write(&current->mm->mmap_sem);
-                error = do_brk(elf_bss, last_bss - elf_bss);
-                up_write(&current->mm->mmap_sem);
+                error = vm_brk(elf_bss, last_bss - elf_bss);
                 if (BAD_ADDR(error))
                         goto out_close;
         }
@@ -962,10 +958,8 @@ static int load_elf_binary(struct linux_binprm *bprm, struct pt_regs *regs)
                    and some applications "depend" upon this behavior.
                    Since we do not have the power to recompile these, we
                    emulate the SVr4 behavior. Sigh. */
-                down_write(&current->mm->mmap_sem);
-                error = do_mmap(NULL, 0, PAGE_SIZE, PROT_READ | PROT_EXEC,
+                error = vm_mmap(NULL, 0, PAGE_SIZE, PROT_READ | PROT_EXEC,
                                 MAP_FIXED | MAP_PRIVATE, 0);
-                up_write(&current->mm->mmap_sem);
         }
 
 #ifdef ELF_PLAT_INIT
@@ -1050,8 +1044,7 @@ static int load_elf_library(struct file *file)
                 eppnt++;
 
         /* Now use mmap to map the library into memory. */
-        down_write(&current->mm->mmap_sem);
-        error = do_mmap(file,
+        error = vm_mmap(file,
                         ELF_PAGESTART(eppnt->p_vaddr),
                         (eppnt->p_filesz +
                          ELF_PAGEOFFSET(eppnt->p_vaddr)),
@@ -1059,7 +1052,6 @@ static int load_elf_library(struct file *file)
                         MAP_FIXED | MAP_PRIVATE | MAP_DENYWRITE,
                         (eppnt->p_offset -
                          ELF_PAGEOFFSET(eppnt->p_vaddr)));
-        up_write(&current->mm->mmap_sem);
         if (error != ELF_PAGESTART(eppnt->p_vaddr))
                 goto out_free_ph;
 
@@ -1072,11 +1064,8 @@ static int load_elf_library(struct file *file)
         len = ELF_PAGESTART(eppnt->p_filesz + eppnt->p_vaddr +
                             ELF_MIN_ALIGN - 1);
         bss = eppnt->p_memsz + eppnt->p_vaddr;
-        if (bss > len) {
-                down_write(&current->mm->mmap_sem);
-                do_brk(len, bss - len);
-                up_write(&current->mm->mmap_sem);
-        }
+        if (bss > len)
+                vm_brk(len, bss - len);
         error = 0;
 
 out_free_ph: