[willy-pagecache:for-next 166/179] fs/hostfs/hostfs_kern.c:507:17: error: 'filemap_dirty_folio' undeclared here (not in a function); did you mean 'filemap_get_folio'?

[kernel test robot]

tree:   git://git.infradead.org/users/willy/pagecache for-next
head:   af564d7369d44fbbe697a5f631fe3bba5ebecd59
commit: 821405cf3ebbd9a17baf9afce08b0562fba04056 [166/179] fs: Convert trivial uses of __set_page_dirty_nobuffers to filemap_dirty_folio
config: um-x86_64_defconfig (https://download.01.org/0day-ci/archive/20220315/202203151604.dZIG5fhk-lkp@xxxxxxxxx/config)
compiler: gcc-9 (Ubuntu 9.4.0-1ubuntu1~20.04) 9.4.0
reproduce (this is a W=1 build):
        git remote add willy-pagecache git://git.infradead.org/users/willy/pagecache
        git fetch --no-tags willy-pagecache for-next
        git checkout 821405cf3ebbd9a17baf9afce08b0562fba04056
        # save the config file to linux build tree
        mkdir build_dir
        make W=1 O=build_dir ARCH=um SUBARCH=x86_64 SHELL=/bin/bash

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@xxxxxxxxx>

All errors (new ones prefixed by >>):

>> fs/hostfs/hostfs_kern.c:507:17: error: 'filemap_dirty_folio' undeclared here (not in a function); did you mean 'filemap_get_folio'?
     507 |  .dirty_folio = filemap_dirty_folio,
         |                 ^~~~~~~~~~~~~~~~~~~
         |                 filemap_get_folio


vim +507 fs/hostfs/hostfs_kern.c

   503	
   504	static const struct address_space_operations hostfs_aops = {
   505		.writepage 	= hostfs_writepage,
   506		.readpage	= hostfs_readpage,
 > 507		.dirty_folio	= filemap_dirty_folio,
   508		.write_begin	= hostfs_write_begin,
   509		.write_end	= hostfs_write_end,
   510	};
   511	

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