blob: 33314dc50feca725b1b0c5f08af3cdbe9a443c69 [file] [log] [blame]
#ifndef __BACKPORT_HASHTABLE_H
#define __BACKPORT_HASHTABLE_H
#include_next <linux/hashtable.h>
#include <linux/version.h>
#if LINUX_VERSION_IS_LESS(3,9,0)
/**
* backport:
*
* commit 0bbacca7c3911451cea923b0ad6389d58e3d9ce9
* Author: Sasha Levin <sasha.levin@oracle.com>
* Date: Thu Feb 7 12:32:18 2013 +1100
*
* hlist: drop the node parameter from iterators
*/
#include <linux/list.h>
#include <backport/magic.h>
#undef hash_for_each
#define hash_for_each(name, bkt, obj, member) \
for ((bkt) = 0, obj = NULL; obj == NULL && (bkt) < HASH_SIZE(name);\
(bkt)++)\
hlist_for_each_entry(obj, &name[bkt], member)
#undef hash_for_each_safe
#define hash_for_each_safe(name, bkt, tmp, obj, member) \
for ((bkt) = 0, obj = NULL; obj == NULL && (bkt) < HASH_SIZE(name);\
(bkt)++)\
hlist_for_each_entry_safe(obj, tmp, &name[bkt], member)
#undef hash_for_each_possible
#define hash_for_each_possible(name, obj, member, key) \
hlist_for_each_entry(obj, &name[hash_min(key, HASH_BITS(name))], member)
#undef hash_for_each_possible_safe
#define hash_for_each_possible_safe(name, obj, tmp, member, key) \
hlist_for_each_entry_safe(obj, tmp,\
&name[hash_min(key, HASH_BITS(name))], member)
#endif
#endif /* __BACKPORT_HASHTABLE_H */