* If the interval [start,end) covers some unmapped address ranges,
* just ignore them, but return -ENOMEM at the end.
*/
- down_read(&mm->mmap_sem);
+ mmap_read_lock(mm);
vma = find_vma(mm, start);
for (;;) {
struct file *file;
if ((flags & MS_SYNC) && file &&
(vma->vm_flags & VM_SHARED)) {
get_file(file);
- up_read(&mm->mmap_sem);
+ mmap_read_unlock(mm);
error = vfs_fsync_range(file, fstart, fend, 1);
fput(file);
if (error || start >= end)
goto out;
- down_read(&mm->mmap_sem);
+ mmap_read_lock(mm);
vma = find_vma(mm, start);
} else {
if (start >= end) {
}
}
out_unlock:
- up_read(&mm->mmap_sem);
+ mmap_read_unlock(mm);
out:
return error ? : unmapped_error;
}