From 2c3c1048746a4622d8c89a29670120dc8fab93c4 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 20:49:45 +0200 Subject: Adding upstream version 6.1.76. Signed-off-by: Daniel Baumann --- .../md/persistent-data/dm-persistent-data-internal.h | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) create mode 100644 drivers/md/persistent-data/dm-persistent-data-internal.h (limited to 'drivers/md/persistent-data/dm-persistent-data-internal.h') diff --git a/drivers/md/persistent-data/dm-persistent-data-internal.h b/drivers/md/persistent-data/dm-persistent-data-internal.h new file mode 100644 index 000000000..b945a2be9 --- /dev/null +++ b/drivers/md/persistent-data/dm-persistent-data-internal.h @@ -0,0 +1,19 @@ +/* + * 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 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 */ -- cgit v1.2.3