/home/rread/pub-src/lustre-release/lustre/llite/file.c: In function ‘ll_dir_finish_open’:
/home/rread/pub-src/lustre-release/lustre/llite/file.c:678:24: error: implicit declaration of function ‘page_cache_alloc’; did you mean ‘kmem_cache_alloc’? [-Werror=implicit-function-declaration]
  678 |                 page = page_cache_alloc(inode->i_mapping);
      |                        ^~~~~~~~~~~~~~~~
      |                        kmem_cache_alloc
/home/rread/pub-src/lustre-release/lustre/llite/file.c:678:22: error: assignment to ‘struct page *’ from ‘int’ makes pointer from integer without a cast [-Werror=int-conversion]
  678 |                 page = page_cache_alloc(inode->i_mapping);
      |                      ^