diff options
Diffstat (limited to 'include/linux/percpu-refcount.h')
| -rw-r--r-- | include/linux/percpu-refcount.h | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/include/linux/percpu-refcount.h b/include/linux/percpu-refcount.h index b0293f268cd2..00c01fc6d88c 100644 --- a/include/linux/percpu-refcount.h +++ b/include/linux/percpu-refcount.h @@ -67,7 +67,9 @@ enum { enum { /* * Start w/ ref == 1 in atomic mode. Can be switched to percpu - * operation using percpu_ref_switch_to_percpu(). + * operation using percpu_ref_switch_to_percpu(). If initialized + * with this flag, the ref will stay in atomic mode until + * percpu_ref_switch_to_percpu() is invoked on it. */ PERCPU_REF_INIT_ATOMIC = 1 << 0, @@ -87,6 +89,7 @@ struct percpu_ref { unsigned long percpu_count_ptr; percpu_ref_func_t *release; percpu_ref_func_t *confirm_switch; + bool force_atomic:1; struct rcu_head rcu; }; |