diff options
Diffstat (limited to 'qemu/include/qemu/rcu.h')
| -rw-r--r-- | qemu/include/qemu/rcu.h | 15 |
1 files changed, 2 insertions, 13 deletions
diff --git a/qemu/include/qemu/rcu.h b/qemu/include/qemu/rcu.h index 7df1e8662..56d3a682a 100644 --- a/qemu/include/qemu/rcu.h +++ b/qemu/include/qemu/rcu.h @@ -23,15 +23,8 @@ * IBM's contributions to this file may be relicensed under LGPLv2 or later. */ -#include <stdlib.h> -#include <assert.h> -#include <limits.h> -#include <unistd.h> -#include <stdint.h> -#include <stdbool.h> #include <glib.h> -#include "qemu/compiler.h" #include "qemu/thread.h" #include "qemu/queue.h" #include "qemu/atomic.h" @@ -71,7 +64,7 @@ struct rcu_reader_data { /* Data used by reader only */ unsigned depth; - /* Data used for registry, protected by rcu_gp_lock */ + /* Data used for registry, protected by rcu_registry_lock */ QLIST_ENTRY(rcu_reader_data) node; }; @@ -88,10 +81,6 @@ static inline void rcu_read_lock(void) ctr = atomic_read(&rcu_gp_ctr); atomic_xchg(&p_rcu_reader->ctr, ctr); - if (atomic_read(&p_rcu_reader->waiting)) { - atomic_set(&p_rcu_reader->waiting, false); - qemu_event_set(&rcu_gp_event); - } } static inline void rcu_read_unlock(void) @@ -104,7 +93,7 @@ static inline void rcu_read_unlock(void) } atomic_xchg(&p_rcu_reader->ctr, 0); - if (atomic_read(&p_rcu_reader->waiting)) { + if (unlikely(atomic_read(&p_rcu_reader->waiting))) { atomic_set(&p_rcu_reader->waiting, false); qemu_event_set(&rcu_gp_event); } |