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mbuf: fix performance of freeing with non atomic refcnt
[dpdk.git]
/
lib
/
librte_mbuf
/
rte_mbuf.h
diff --git
a/lib/librte_mbuf/rte_mbuf.h
b/lib/librte_mbuf/rte_mbuf.h
index
a827e6e
..
a594e47
100644
(file)
--- a/
lib/librte_mbuf/rte_mbuf.h
+++ b/
lib/librte_mbuf/rte_mbuf.h
@@
-772,6
+772,13
@@
rte_mbuf_refcnt_set(struct rte_mbuf *m, uint16_t new_value)
rte_atomic16_set(&m->refcnt_atomic, new_value);
}
rte_atomic16_set(&m->refcnt_atomic, new_value);
}
+/* internal */
+static inline uint16_t
+__rte_mbuf_refcnt_update(struct rte_mbuf *m, int16_t value)
+{
+ return (uint16_t)(rte_atomic16_add_return(&m->refcnt_atomic, value));
+}
+
/**
* Adds given value to an mbuf's refcnt and returns its new value.
* @param m
/**
* Adds given value to an mbuf's refcnt and returns its new value.
* @param m
@@
-796,19
+803,26
@@
rte_mbuf_refcnt_update(struct rte_mbuf *m, int16_t value)
return 1 + value;
}
return 1 + value;
}
- return
(uint16_t)(rte_atomic16_add_return(&m->refcnt_atomic, value)
);
+ return
__rte_mbuf_refcnt_update(m, value
);
}
#else /* ! RTE_MBUF_REFCNT_ATOMIC */
}
#else /* ! RTE_MBUF_REFCNT_ATOMIC */
+/* internal */
+static inline uint16_t
+__rte_mbuf_refcnt_update(struct rte_mbuf *m, int16_t value)
+{
+ m->refcnt = (uint16_t)(m->refcnt + value);
+ return m->refcnt;
+}
+
/**
* Adds given value to an mbuf's refcnt and returns its new value.
*/
static inline uint16_t
rte_mbuf_refcnt_update(struct rte_mbuf *m, int16_t value)
{
/**
* Adds given value to an mbuf's refcnt and returns its new value.
*/
static inline uint16_t
rte_mbuf_refcnt_update(struct rte_mbuf *m, int16_t value)
{
- m->refcnt = (uint16_t)(m->refcnt + value);
- return m->refcnt;
+ return __rte_mbuf_refcnt_update(m, value);
}
/**
}
/**
@@
-1372,8
+1386,7
@@
rte_pktmbuf_prefree_seg(struct rte_mbuf *m)
return m;
return m;
- } else if (rte_atomic16_add_return(&m->refcnt_atomic, -1) == 0) {
-
+ } else if (__rte_mbuf_refcnt_update(m, -1) == 0) {
if (RTE_MBUF_INDIRECT(m))
rte_pktmbuf_detach(m);
if (RTE_MBUF_INDIRECT(m))
rte_pktmbuf_detach(m);