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Rename the parameter name of _cds_lfht_replace()
[urcu.git]
/
rculfhash.c
diff --git
a/rculfhash.c
b/rculfhash.c
index 6e07878a1c3db3c2afac4700727491a2aa8be3ea..be995dfeaf5ef70795a6fd74a7bc34f4ced558c6 100644
(file)
--- a/
rculfhash.c
+++ b/
rculfhash.c
@@
-787,10
+787,10
@@
void _cds_lfht_gc_bucket(struct cds_lfht_node *dummy, struct cds_lfht_node *node
static
int _cds_lfht_replace(struct cds_lfht *ht, unsigned long size,
struct cds_lfht_node *old_node,
static
int _cds_lfht_replace(struct cds_lfht *ht, unsigned long size,
struct cds_lfht_node *old_node,
- struct cds_lfht_node *
ret
_next,
+ struct cds_lfht_node *
old
_next,
struct cds_lfht_node *new_node)
{
struct cds_lfht_node *new_node)
{
- struct cds_lfht_node *dummy, *
old
_next;
+ struct cds_lfht_node *dummy, *
ret
_next;
struct _cds_lfht_node *lookup;
int flagged = 0;
struct _cds_lfht_node *lookup;
int flagged = 0;
@@
-802,9
+802,8
@@
int _cds_lfht_replace(struct cds_lfht *ht, unsigned long size,
assert(!is_removed(new_node));
assert(!is_dummy(new_node));
assert(new_node != old_node);
assert(!is_removed(new_node));
assert(!is_dummy(new_node));
assert(new_node != old_node);
-
do
{
+
for (;;)
{
/* Insert after node to be replaced */
/* Insert after node to be replaced */
- old_next = ret_next;
if (is_removed(old_next)) {
/*
* Too late, the old node has been removed under us
if (is_removed(old_next)) {
/*
* Too late, the old node has been removed under us
@@
-827,7
+826,10
@@
int _cds_lfht_replace(struct cds_lfht *ht, unsigned long size,
*/
ret_next = uatomic_cmpxchg(&old_node->p.next,
old_next, flag_removed(new_node));
*/
ret_next = uatomic_cmpxchg(&old_node->p.next,
old_next, flag_removed(new_node));
- } while (ret_next != old_next);
+ if (ret_next == old_next)
+ break;
+ old_next = ret_next;
+ }
/* We performed the replacement. */
flagged = 1;
/* We performed the replacement. */
flagged = 1;
@@
-887,6
+889,9
@@
struct cds_lfht_node *_cds_lfht_add(struct cds_lfht *ht,
goto insert;
if (likely(clear_flag(iter)->p.reverse_hash > node->p.reverse_hash))
goto insert;
goto insert;
if (likely(clear_flag(iter)->p.reverse_hash > node->p.reverse_hash))
goto insert;
+ /* dummy node is the first node of the identical-hash-value chain */
+ if (dummy && clear_flag(iter)->p.reverse_hash == node->p.reverse_hash)
+ goto insert;
next = rcu_dereference(clear_flag(iter)->p.next);
if (unlikely(is_removed(next)))
goto gc_node;
next = rcu_dereference(clear_flag(iter)->p.next);
if (unlikely(is_removed(next)))
goto gc_node;
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