VM: add "vm_mmap()" helper function

[GitHub/mt8127/android_kernel_alcatel_ttab.git] / fs / binfmt_flat.c

diff --git a/fs/binfmt_flat.c b/fs/binfmt_flat.c
index 024d20ee3ca3a617e377045fa7cf6d0706a4ed43..6b2daf99fab8bcd91d314f0abd951b8472a092d2 100644 (file)
--- a/fs/binfmt_flat.c
+++ b/fs/binfmt_flat.c
@@ -542,10 +542,8 @@ static int load_flat_file(struct linux_binprm * bprm,
                 */
                DBG_FLT("BINFMT_FLAT: ROM mapping of file (we hope)\n");
 
-               down_write(&current->mm->mmap_sem);
-               textpos = do_mmap(bprm->file, 0, text_len, PROT_READ|PROT_EXEC,
+               textpos = vm_mmap(bprm->file, 0, text_len, PROT_READ|PROT_EXEC,
                                  MAP_PRIVATE|MAP_EXECUTABLE, 0);
-               up_write(&current->mm->mmap_sem);
                if (!textpos || IS_ERR_VALUE(textpos)) {
                        if (!textpos)
                                textpos = (unsigned long) -ENOMEM;
@@ -556,10 +554,8 @@ static int load_flat_file(struct linux_binprm * bprm,
 
                len = data_len + extra + MAX_SHARED_LIBS * sizeof(unsigned long);
                len = PAGE_ALIGN(len);
-               down_write(&current->mm->mmap_sem);
-               realdatastart = do_mmap(0, 0, len,
+               realdatastart = vm_mmap(0, 0, len,
                        PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE, 0);
-               up_write(&current->mm->mmap_sem);
 
                if (realdatastart == 0 || IS_ERR_VALUE(realdatastart)) {
                        if (!realdatastart)
@@ -603,10 +599,8 @@ static int load_flat_file(struct linux_binprm * bprm,
 
                len = text_len + data_len + extra + MAX_SHARED_LIBS * sizeof(unsigned long);
                len = PAGE_ALIGN(len);
-               down_write(&current->mm->mmap_sem);
-               textpos = do_mmap(0, 0, len,
+               textpos = vm_mmap(0, 0, len,
                        PROT_READ | PROT_EXEC | PROT_WRITE, MAP_PRIVATE, 0);
-               up_write(&current->mm->mmap_sem);
 
                if (!textpos || IS_ERR_VALUE(textpos)) {
                        if (!textpos)