diff options
Diffstat (limited to 'Python/qsbr.c')
| -rw-r--r-- | Python/qsbr.c | 14 |
1 files changed, 3 insertions, 11 deletions
diff --git a/Python/qsbr.c b/Python/qsbr.c index bf34fb2523d..c992c285cb1 100644 --- a/Python/qsbr.c +++ b/Python/qsbr.c @@ -1,6 +1,6 @@ /* * Implementation of safe memory reclamation scheme using - * quiescent states. + * quiescent states. See InternalDocs/qsbr.md. * * This is derived from the "GUS" safe memory reclamation technique * in FreeBSD written by Jeffrey Roberson. It is heavily modified. Any bugs @@ -41,10 +41,6 @@ // Starting size of the array of qsbr thread states #define MIN_ARRAY_SIZE 8 -// For _Py_qsbr_deferred_advance(): the number of deferrals before advancing -// the write sequence. -#define QSBR_DEFERRED_LIMIT 10 - // Allocate a QSBR thread state from the freelist static struct _qsbr_thread_state * qsbr_allocate(struct _qsbr_shared *shared) @@ -117,13 +113,9 @@ _Py_qsbr_advance(struct _qsbr_shared *shared) } uint64_t -_Py_qsbr_deferred_advance(struct _qsbr_thread_state *qsbr) +_Py_qsbr_shared_next(struct _qsbr_shared *shared) { - if (++qsbr->deferrals < QSBR_DEFERRED_LIMIT) { - return _Py_qsbr_shared_current(qsbr->shared) + QSBR_INCR; - } - qsbr->deferrals = 0; - return _Py_qsbr_advance(qsbr->shared); + return _Py_qsbr_shared_current(shared) + QSBR_INCR; } static uint64_t |