__block_write_begin
EXPORT_SYMBOL(__block_write_begin);
return __block_write_begin(folio, pos, len, ext2_get_block);
return __block_write_begin(folio, pos, len, minix_get_block);
return __block_write_begin(folio, pos, to - from, nilfs_get_block);
ret = __block_write_begin(folio, block_start + 1, 0,
err = __block_write_begin(folio, 0, end, udf_get_block);
return __block_write_begin(folio, pos, len, ufs_getfrag_block);
int __block_write_begin(struct folio *folio, loff_t pos, unsigned len,