[PATCH] NOMMU: Make SYSV IPC SHM use ramfs facilities on NOMMU

[linux-2.6-omap-h63xx.git] / ipc / shm.c

diff --git a/ipc/shm.c b/ipc/shm.c
index 587d836d80d9d07f075259d3efe73917413f8010..0ef4a1cf3e27246b54a2e31865e85d9ccded7398 100644 (file)
--- a/ipc/shm.c
+++ b/ipc/shm.c
@@ -157,14 +157,22 @@ static void shm_close (struct vm_area_struct *shmd)
 
 static int shm_mmap(struct file * file, struct vm_area_struct * vma)
 {
-       file_accessed(file);
-       vma->vm_ops = &shm_vm_ops;
-       shm_inc(file->f_dentry->d_inode->i_ino);
-       return 0;
+       int ret;
+
+       ret = shmem_mmap(file, vma);
+       if (ret == 0) {
+               vma->vm_ops = &shm_vm_ops;
+               shm_inc(file->f_dentry->d_inode->i_ino);
+       }
+
+       return ret;
 }
 
 static struct file_operations shm_file_operations = {
-       .mmap   = shm_mmap
+       .mmap   = shm_mmap,
+#ifndef CONFIG_MMU
+       .get_unmapped_area = shmem_get_unmapped_area,
+#endif
 };
 
 static struct vm_operations_struct shm_vm_ops = {