diff options
| -rw-r--r-- | ipc/shm.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/ipc/shm.c b/ipc/shm.c index 9162123a7b23..f4097265eae4 100644 --- a/ipc/shm.c +++ b/ipc/shm.c @@ -161,6 +161,8 @@ static int shm_mmap(struct file * file, struct vm_area_struct * vma) ret = shmem_mmap(file, vma); if (ret == 0) { vma->vm_ops = &shm_vm_ops; + if (!(vma->vm_flags & VM_WRITE)) + vma->vm_flags &= ~VM_MAYWRITE; shm_inc(file->f_dentry->d_inode->i_ino); } |