split ->file_mmap() into ->mmap_addr()/->mmap_file()

... i.e. file-dependent and address-dependent checks.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

1 files changed, 8 insertions, 4 deletions

diff --git a/mm/mmap.c b/mm/mmap.c
index 83c56624f1f6..49283da9a2ae 100644
--- a/mm/mmap.c
+++ b/mm/mmap.c
@@ -1101,7 +1101,11 @@ static unsigned long do_mmap_pgoff(struct file *file, unsigned long addr,
                 }
         }
 
-        error = security_file_mmap(file, reqprot, prot, flags, addr, 0);
+        error = security_mmap_addr(addr);
+        if (error)
+                return error;
+
+        error = security_mmap_file(file, reqprot, prot, flags);
         if (error)
                 return error;
 
@@ -1817,7 +1821,7 @@ int expand_downwards(struct vm_area_struct *vma,
                 return -ENOMEM;
 
         address &= PAGE_MASK;
-        error = security_file_mmap(NULL, 0, 0, 0, address, 1);
+        error = security_mmap_addr(address);
         if (error)
                 return error;
 
@@ -2205,7 +2209,7 @@ static unsigned long do_brk(unsigned long addr, unsigned long len)
         if (!len)
                 return addr;
 
-        error = security_file_mmap(NULL, 0, 0, 0, addr, 1);
+        error = security_mmap_addr(addr);
         if (error)
                 return error;
 
@@ -2561,7 +2565,7 @@ int install_special_mapping(struct mm_struct *mm,
         vma->vm_ops = &special_mapping_vmops;
         vma->vm_private_data = pages;
 
-        ret = security_file_mmap(NULL, 0, 0, 0, vma->vm_start, 1);
+        ret = security_mmap_addr(vma->vm_start);
         if (ret)
                 goto out;