summaryrefslogtreecommitdiff
path: root/mm/nommu.c
diff options
context:
space:
mode:
Diffstat (limited to 'mm/nommu.c')
-rw-r--r--mm/nommu.c16
1 files changed, 5 insertions, 11 deletions
diff --git a/mm/nommu.c b/mm/nommu.c
index a1792ed2cb1..e6123a5b2cc 100644
--- a/mm/nommu.c
+++ b/mm/nommu.c
@@ -1470,28 +1470,22 @@ error_getting_region:
return -ENOMEM;
}
-static unsigned long do_mmap(struct file *file, unsigned long addr,
+unsigned long vm_mmap(struct file *file, unsigned long addr,
unsigned long len, unsigned long prot,
unsigned long flag, unsigned long offset)
{
+ unsigned long ret;
+ struct mm_struct *mm = current->mm;
+
if (unlikely(offset + PAGE_ALIGN(len) < offset))
return -EINVAL;
if (unlikely(offset & ~PAGE_MASK))
return -EINVAL;
- return do_mmap_pgoff(file, addr, len, prot, flag, offset >> PAGE_SHIFT);
-}
-
-unsigned long vm_mmap(struct file *file, unsigned long addr,
- unsigned long len, unsigned long prot,
- unsigned long flag, unsigned long offset)
-{
- unsigned long ret;
- struct mm_struct *mm = current->mm;
ret = security_mmap_file(file, prot, flag);
if (!ret) {
down_write(&mm->mmap_sem);
- ret = do_mmap(file, addr, len, prot, flag, offset);
+ ret = do_mmap_pgoff(file, addr, len, prot, flag, offset >> PAGE_SHIFT);
up_write(&mm->mmap_sem);
}
return ret;