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#ifndef __BACKPORT_RHASHTABLE_H
#define __BACKPORT_RHASHTABLE_H
#include_next <linux/rhashtable.h>
#include <linux/version.h>
#if LINUX_VERSION_IS_LESS(4,12,0)
/**
* rhashtable_lookup_get_insert_fast - lookup and insert object into hash table
* @ht: hash table
* @obj: pointer to hash head inside object
* @params: hash table parameters
*
* Just like rhashtable_lookup_insert_fast(), but this function returns the
* object if it exists, NULL if it did not and the insertion was successful,
* and an ERR_PTR otherwise.
*/
#define rhashtable_lookup_get_insert_fast LINUX_BACKPORT(rhashtable_lookup_get_insert_fast)
static inline void *rhashtable_lookup_get_insert_fast(
struct rhashtable *ht, struct rhash_head *obj,
const struct rhashtable_params params)
{
const char *key = rht_obj(ht, obj);
BUG_ON(ht->p.obj_hashfn);
return __rhashtable_insert_fast(ht, key + ht->p.key_offset, obj, params,
false);
}
#endif
#endif /* __BACKPORT_RHASHTABLE_H */
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