MIPS: Cleanup arch_get_unmapped_area
As noticed by Kevin Cernekee <cernekee@gmail.com> in
http://www.linux-mips.org/cgi-bin/extract-mesg.cgi?a=linux-mips&m=2011-05&i=BANLkTikq04wuK%3Dbz%2BLieavmm3oDtoYWKxg%40mail.gmail.com
Patchwork: https://patchwork.linux-mips.org/patch/2387/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
diff --git a/arch/mips/kernel/syscall.c b/arch/mips/kernel/syscall.c
index 58beabf..0c207e8 100644
--- a/arch/mips/kernel/syscall.c
+++ b/arch/mips/kernel/syscall.c
@@ -79,20 +79,13 @@
{
struct vm_area_struct * vmm;
int do_color_align;
- unsigned long task_size;
-#ifdef CONFIG_32BIT
- task_size = TASK_SIZE;
-#else /* Must be CONFIG_64BIT*/
- task_size = test_thread_flag(TIF_32BIT_ADDR) ? TASK_SIZE32 : TASK_SIZE;
-#endif
-
- if (len > task_size)
+ if (len > TASK_SIZE)
return -ENOMEM;
if (flags & MAP_FIXED) {
- /* Even MAP_FIXED mappings must reside within task_size. */
- if (task_size - len < addr)
+ /* Even MAP_FIXED mappings must reside within TASK_SIZE. */
+ if (TASK_SIZE - len < addr)
return -EINVAL;
/*
@@ -114,7 +107,7 @@
else
addr = PAGE_ALIGN(addr);
vmm = find_vma(current->mm, addr);
- if (task_size - len >= addr &&
+ if (TASK_SIZE - len >= addr &&
(!vmm || addr + len <= vmm->vm_start))
return addr;
}
@@ -126,7 +119,7 @@
for (vmm = find_vma(current->mm, addr); ; vmm = vmm->vm_next) {
/* At this point: (!vmm || addr < vmm->vm_end). */
- if (task_size - len < addr)
+ if (TASK_SIZE - len < addr)
return -ENOMEM;
if (!vmm || addr + len <= vmm->vm_start)
return addr;