block_write_begin
return block_write_begin(mapping, pos, len, foliop, blkdev_get_block);
ret = block_write_begin(mapping, pos, len, foliop, bfs_get_block);
EXPORT_SYMBOL(block_write_begin);
return block_write_begin(mapping, pos, len, foliop, get_block);
ret = block_write_begin(mapping, pos, len, foliop, exfat_get_block);
ret = block_write_begin(mapping, pos, len, foliop, ext2_get_block);
ret = block_write_begin(mapping, pos, len, foliop, jfs_get_block);
ret = block_write_begin(mapping, pos, len, foliop, minix_get_block);
err = block_write_begin(mapping, pos, len, foliop, nilfs_get_block);
err = block_write_begin(inode->i_mapping, pos, blocksize,
ret = block_write_begin(mapping, pos, len, foliop, omfs_get_block);
ret = block_write_begin(mapping, pos, len, foliop,
ret = block_write_begin(mapping, pos, len, foliop, ufs_getfrag_block);
int block_write_begin(struct address_space *mapping, loff_t pos, unsigned len,