summaryrefslogtreecommitdiff
path: root/mm/mmap.c
diff options
context:
space:
mode:
Diffstat (limited to 'mm/mmap.c')
-rw-r--r--mm/mmap.c16
1 files changed, 5 insertions, 11 deletions
diff --git a/mm/mmap.c b/mm/mmap.c
index f7786542c59d..538c905d6d9b 100644
--- a/mm/mmap.c
+++ b/mm/mmap.c
@@ -1102,28 +1102,22 @@ unsigned long do_mmap_pgoff(struct file *file, unsigned long addr,
return mmap_region(file, addr, len, flags, vm_flags, pgoff);
}
-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;