File: dm-persistent-data-internal.h

package info (click to toggle)
linux 4.19.16-1
  • links: PTS, VCS
  • area: main
  • in suites: buster
  • size: 955,852 kB
  • sloc: ansic: 16,748,305; asm: 271,259; makefile: 38,297; sh: 38,030; perl: 28,295; python: 21,019; cpp: 5,063; yacc: 4,648; lex: 2,583; awk: 1,385; ruby: 25; sed: 5
file content (19 lines) | stat: -rw-r--r-- 407 bytes parent folder | download | duplicates (36) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
 
/*
 * 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 dm_hash_block(dm_block_t b, unsigned hash_mask)
{
	const unsigned BIG_PRIME = 4294967291UL;

	return (((unsigned) b) * BIG_PRIME) & hash_mask;
}

#endif	/* _PERSISTENT_DATA_INTERNAL_H */