mirror of
https://github.com/torvalds/linux.git
synced 2024-12-02 09:01:34 +00:00
86a3238c7b
Signed-off-by: Heinz Mauelshagen <heinzm@redhat.com> Signed-off-by: Mike Snitzer <snitzer@kernel.org>
21 lines
467 B
C
21 lines
467 B
C
/* SPDX-License-Identifier: GPL-2.0-only */
|
|
/*
|
|
* Copyright (C) 2011 Red Hat, Inc.
|
|
*
|
|
* This file is released under the GPL.
|
|
*/
|
|
|
|
#ifndef _DM_PERSISTENT_DATA_INTERNAL_H
|
|
#define _DM_PERSISTENT_DATA_INTERNAL_H
|
|
|
|
#include "dm-block-manager.h"
|
|
|
|
static inline unsigned int dm_hash_block(dm_block_t b, unsigned int hash_mask)
|
|
{
|
|
const unsigned int BIG_PRIME = 4294967291UL;
|
|
|
|
return (((unsigned int) b) * BIG_PRIME) & hash_mask;
|
|
}
|
|
|
|
#endif /* _PERSISTENT_DATA_INTERNAL_H */
|