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1/* SPDX-License-Identifier: GPL-2.0-only */2/*3 * Copyright (C) 2011 Red Hat, Inc.4 *5 * This file is released under the GPL.6 */7 8#ifndef _DM_PERSISTENT_DATA_INTERNAL_H9#define _DM_PERSISTENT_DATA_INTERNAL_H10 11#include "dm-block-manager.h"12 13static inline unsigned int dm_hash_block(dm_block_t b, unsigned int hash_mask)14{15 const unsigned int BIG_PRIME = 4294967291UL;16 17 return (((unsigned int) b) * BIG_PRIME) & hash_mask;18}19 20#endif /* _PERSISTENT_DATA_INTERNAL_H */21