diff options
Diffstat (limited to 'contrib')
| -rw-r--r-- | contrib/userspace-rcu/rculist-extra.h | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/contrib/userspace-rcu/rculist-extra.h b/contrib/userspace-rcu/rculist-extra.h new file mode 100644 index 00000000000..274cf9f9d7a --- /dev/null +++ b/contrib/userspace-rcu/rculist-extra.h @@ -0,0 +1,42 @@ +/* + * Copyright (C) 2002 Free Software Foundation, Inc. + * (originally part of the GNU C Library) + * Contributed by Ulrich Drepper <drepper@redhat.com>, 2002. + * + * Copyright (C) 2009 Pierre-Marc Fournier + * Conversion to RCU list. + * Copyright (C) 2010 Mathieu Desnoyers <mathieu.desnoyers@efficios.com> + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#ifndef URCU_RCULIST_EXTRA_H +#define URCU_RCULIST_EXTRA_H +/* Copying this definition from liburcu-0.8 as liburcu-0.7 does not have this + * particular list api + */ +/* Add new element at the tail of the list. */ + +static inline +void cds_list_add_tail_rcu(struct cds_list_head *newp, + struct cds_list_head *head) +{ + newp->next = head; + newp->prev = head->prev; + rcu_assign_pointer(head->prev->next, newp); + head->prev = newp; +} + +#endif |