Merge branch 'perf/uprobes' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/uprobes

1 files changed, 8 insertions, 24 deletions

diff --git a/arch/x86/ia32/ia32_aout.c b/arch/x86/ia32/ia32_aout.c
index d511d951a052..4824fb45560f 100644
--- a/arch/x86/ia32/ia32_aout.c
+++ b/arch/x86/ia32/ia32_aout.c
@@ -119,9 +119,7 @@ static void set_brk(unsigned long start, unsigned long end)
         end = PAGE_ALIGN(end);
         if (end <= start)
                 return;
-        down_write(&current->mm->mmap_sem);
-        do_brk(start, end - start);
-        up_write(&current->mm->mmap_sem);
+        vm_brk(start, end - start);
 }
 
 #ifdef CORE_DUMP
@@ -332,9 +330,7 @@ static int load_aout_binary(struct linux_binprm *bprm, struct pt_regs *regs)
                 pos = 32;
                 map_size = ex.a_text+ex.a_data;
 
-                down_write(&current->mm->mmap_sem);
-                error = do_brk(text_addr & PAGE_MASK, map_size);
-                up_write(&current->mm->mmap_sem);
+                error = vm_brk(text_addr & PAGE_MASK, map_size);
 
                 if (error != (text_addr & PAGE_MASK)) {
                         send_sig(SIGKILL, current, 0);
@@ -373,9 +369,7 @@ static int load_aout_binary(struct linux_binprm *bprm, struct pt_regs *regs)
                 if (!bprm->file->f_op->mmap || (fd_offset & ~PAGE_MASK) != 0) {
                         loff_t pos = fd_offset;
 
-                        down_write(&current->mm->mmap_sem);
-                        do_brk(N_TXTADDR(ex), ex.a_text+ex.a_data);
-                        up_write(&current->mm->mmap_sem);
+                        vm_brk(N_TXTADDR(ex), ex.a_text+ex.a_data);
                         bprm->file->f_op->read(bprm->file,
                                         (char __user *)N_TXTADDR(ex),
                                         ex.a_text+ex.a_data, &pos);
@@ -385,26 +379,22 @@ static int load_aout_binary(struct linux_binprm *bprm, struct pt_regs *regs)
                         goto beyond_if;
                 }
 
-                down_write(&current->mm->mmap_sem);
-                error = do_mmap(bprm->file, N_TXTADDR(ex), ex.a_text,
+                error = vm_mmap(bprm->file, N_TXTADDR(ex), ex.a_text,
                                 PROT_READ | PROT_EXEC,
                                 MAP_FIXED | MAP_PRIVATE | MAP_DENYWRITE |
                                 MAP_EXECUTABLE | MAP_32BIT,
                                 fd_offset);
-                up_write(&current->mm->mmap_sem);
 
                 if (error != N_TXTADDR(ex)) {
                         send_sig(SIGKILL, current, 0);
                         return error;
                 }
 
-                down_write(&current->mm->mmap_sem);
-                error = do_mmap(bprm->file, N_DATADDR(ex), ex.a_data,
+                error = vm_mmap(bprm->file, N_DATADDR(ex), ex.a_data,
                                 PROT_READ | PROT_WRITE | PROT_EXEC,
                                 MAP_FIXED | MAP_PRIVATE | MAP_DENYWRITE |
                                 MAP_EXECUTABLE | MAP_32BIT,
                                 fd_offset + ex.a_text);
-                up_write(&current->mm->mmap_sem);
                 if (error != N_DATADDR(ex)) {
                         send_sig(SIGKILL, current, 0);
                         return error;
@@ -476,9 +466,7 @@ static int load_aout_library(struct file *file)
                         error_time = jiffies;
                 }
 #endif
-                down_write(&current->mm->mmap_sem);
-                do_brk(start_addr, ex.a_text + ex.a_data + ex.a_bss);
-                up_write(&current->mm->mmap_sem);
+                vm_brk(start_addr, ex.a_text + ex.a_data + ex.a_bss);
 
                 file->f_op->read(file, (char __user *)start_addr,
                         ex.a_text + ex.a_data, &pos);
@@ -490,12 +478,10 @@ static int load_aout_library(struct file *file)
                 goto out;
         }
         /* Now use mmap to map the library into memory. */
-        down_write(&current->mm->mmap_sem);
-        error = do_mmap(file, start_addr, ex.a_text + ex.a_data,
+        error = vm_mmap(file, start_addr, ex.a_text + ex.a_data,
                         PROT_READ | PROT_WRITE | PROT_EXEC,
                         MAP_FIXED | MAP_PRIVATE | MAP_DENYWRITE | MAP_32BIT,
                         N_TXTOFF(ex));
-        up_write(&current->mm->mmap_sem);
         retval = error;
         if (error != start_addr)
                 goto out;
@@ -503,9 +489,7 @@ static int load_aout_library(struct file *file)
         len = PAGE_ALIGN(ex.a_text + ex.a_data);
         bss = ex.a_text + ex.a_data + ex.a_bss;
         if (bss > len) {
-                down_write(&current->mm->mmap_sem);
-                error = do_brk(start_addr + len, bss - len);
-                up_write(&current->mm->mmap_sem);
+                error = vm_brk(start_addr + len, bss - len);
                 retval = error;
                 if (error != start_addr + len)
                         goto out;