[27.03 RFC PATCH v1 6/8] thash: use usage counters for ref counting

[Anatoly Burakov]

Use EAL usage counters instead of raw integers for ref counting.

Signed-off-by: Anatoly Burakov <anatoly.bura...@intel.com>
---
 lib/hash/rte_thash.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/lib/hash/rte_thash.c b/lib/hash/rte_thash.c
index fcd41248b9..bbbd932f92 100644
--- a/lib/hash/rte_thash.c
+++ b/lib/hash/rte_thash.c
@@ -15,6 +15,7 @@
 #include <rte_log.h>
 #include <rte_malloc.h>
 #include <rte_cpuflags.h>
+#include <rte_usage_count.h>
 
 RTE_LOG_REGISTER_SUFFIX(thash_logtype, thash, INFO);
 #define RTE_LOGTYPE_HASH thash_logtype
@@ -34,7 +35,7 @@ static struct rte_tailq_elem rte_thash_tailq = {
 EAL_REGISTER_TAILQ(rte_thash_tailq)
 
 struct thash_lfsr {
-       uint32_t        ref_cnt;
+       rte_usage_count_t       ref_cnt;
        uint32_t        poly;
        /**< polynomial associated with the lfsr */
        uint32_t        rev_poly;
@@ -187,7 +188,7 @@ alloc_lfsr(uint32_t poly_degree)
 
        /* clear bits_cnt after rev_state was inited */
        lfsr->bits_cnt = 0;
-       lfsr->ref_cnt = 1;
+       rte_usage_count_claim(&lfsr->ref_cnt);
 
        return lfsr;
 }
@@ -195,15 +196,14 @@ alloc_lfsr(uint32_t poly_degree)
 static void
 attach_lfsr(struct rte_thash_subtuple_helper *h, struct thash_lfsr *lfsr)
 {
-       lfsr->ref_cnt++;
+       rte_usage_count_claim(&lfsr->ref_cnt);
        h->lfsr = lfsr;
 }
 
 static void
 free_lfsr(struct thash_lfsr *lfsr)
 {
-       lfsr->ref_cnt--;
-       if (lfsr->ref_cnt == 0)
+       if (rte_usage_count_release(&lfsr->ref_cnt))
                rte_free(lfsr);
 }
 
-- 
2.52.0