fscrypt_limit_io_blocks
EXPORT_SYMBOL_GPL(fscrypt_limit_io_blocks);
map.m_len = fscrypt_limit_io_blocks(inode, map.m_lblk, map.m_len);
map.m_len = fscrypt_limit_io_blocks(inode, map.m_lblk, map.m_len);
u64 fscrypt_limit_io_blocks(const struct inode *inode, u64 lblk, u64 nr_blocks);