[mcgrof-next:large-block-20230617-hacks 44/45] block/bdev.c:140:47: error: 'struct block_device' has no member named 'bd_buffer_head_mounted'

[kernel test robot <lkp@intel.com>]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/mcgrof/linux-next.git large-block-20230617-hacks
head:   87ea751f68b5bc03c4c3491b5cab898765002565
commit: b1bd39924b170a4c910626be18f732385e206f2a [44/45] bdev: make iomap aops default and allow to switch
config: powerpc-allnoconfig (https://download.01.org/0day-ci/archive/20230617/202306172356.7Ap7UmF6-lkp@intel.com/config)
compiler: powerpc-linux-gcc (GCC) 12.3.0
reproduce: (https://download.01.org/0day-ci/archive/20230617/202306172356.7Ap7UmF6-lkp@intel.com/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202306172356.7Ap7UmF6-lkp@intel.com/

All errors (new ones prefixed by >>):

   In file included from arch/powerpc/include/asm/bug.h:159,
                    from include/linux/bug.h:5,
                    from include/linux/mmdebug.h:5,
                    from include/linux/mm.h:6,
                    from block/bdev.c:9:
   block/bdev.c: In function 'set_init_blocksize':
>> block/bdev.c:140:47: error: 'struct block_device' has no member named 'bd_buffer_head_mounted'
     140 |                 WARN_ON_ONCE(atomic_read(&bdev->bd_buffer_head_mounted) != 0);
         |                                               ^~
   include/asm-generic/bug.h:111:32: note: in definition of macro 'WARN_ON_ONCE'
     111 |         int __ret_warn_on = !!(condition);                      \
         |                                ^~~~~~~~~


vim +140 block/bdev.c

   124	
   125	static void set_init_blocksize(struct block_device *bdev)
   126	{
   127		unsigned int bsize = bdev_logical_block_size(bdev);
   128		loff_t size = i_size_read(bdev->bd_inode);
   129		int order, folio_order;
   130	
   131		while (bsize < PAGE_SIZE) {
   132			if (size & bsize)
   133				break;
   134			bsize <<= 1;
   135		}
   136		bdev->bd_inode->i_blkbits = blksize_bits(bsize);
   137		order = bdev->bd_inode->i_blkbits - PAGE_SHIFT;
   138		folio_order = mapping_min_folio_order(bdev->bd_inode->i_mapping);
   139		if (order > 0 && folio_order == 0) {
 > 140			WARN_ON_ONCE(atomic_read(&bdev->bd_buffer_head_mounted) != 0);
   141			mapping_set_min_folio_order(bdev->bd_inode->i_mapping, order);
   142			bdev->bd_inode->i_data.a_ops = &def_blk_aops_iomap;
   143		}
   144	}
   145	

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