From owner-svn-src-all@freebsd.org Mon Jan 9 17:20:05 2017 Return-Path: Delivered-To: svn-src-all@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id DA6BCCA78EA; Mon, 9 Jan 2017 17:20:05 +0000 (UTC) (envelope-from hselasky@FreeBSD.org) Received: from repo.freebsd.org (repo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:0]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 907131628; Mon, 9 Jan 2017 17:20:05 +0000 (UTC) (envelope-from hselasky@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.37]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id v09HK4Dj088378; Mon, 9 Jan 2017 17:20:04 GMT (envelope-from hselasky@FreeBSD.org) Received: (from hselasky@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id v09HK4G8088377; Mon, 9 Jan 2017 17:20:04 GMT (envelope-from hselasky@FreeBSD.org) Message-Id: <201701091720.v09HK4G8088377@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: hselasky set sender to hselasky@FreeBSD.org using -f From: Hans Petter Selasky Date: Mon, 9 Jan 2017 17:20:04 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-11@freebsd.org Subject: svn commit: r311802 - stable/11/sys/compat/linuxkpi/common/include/linux X-SVN-Group: stable-11 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: svn-src-all@freebsd.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: "SVN commit messages for the entire src tree \(except for " user" and " projects" \)" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 09 Jan 2017 17:20:06 -0000 Author: hselasky Date: Mon Jan 9 17:20:04 2017 New Revision: 311802 URL: https://svnweb.freebsd.org/changeset/base/311802 Log: MFC r310589: Implement more list header file functions. Add definition guard for the list_head structure. Obtained from: kmacy @ Sponsored by: Mellanox Technologies Modified: stable/11/sys/compat/linuxkpi/common/include/linux/list.h Directory Properties: stable/11/ (props changed) Modified: stable/11/sys/compat/linuxkpi/common/include/linux/list.h ============================================================================== --- stable/11/sys/compat/linuxkpi/common/include/linux/list.h Mon Jan 9 17:18:39 2017 (r311801) +++ stable/11/sys/compat/linuxkpi/common/include/linux/list.h Mon Jan 9 17:20:04 2017 (r311802) @@ -72,10 +72,18 @@ #define prefetch(x) +#define LINUX_LIST_HEAD_INIT(name) { &(name), &(name) } + +#define LINUX_LIST_HEAD(name) \ + struct list_head name = LINUX_LIST_HEAD_INIT(name) + +#ifndef LIST_HEAD_DEF +#define LIST_HEAD_DEF struct list_head { struct list_head *next; struct list_head *prev; }; +#endif static inline void INIT_LIST_HEAD(struct list_head *list) @@ -91,12 +99,26 @@ list_empty(const struct list_head *head) return (head->next == head); } +static inline int +list_empty_careful(const struct list_head *head) +{ + struct list_head *next = head->next; + + return ((next == head) && (next == head->prev)); +} + +static inline void +__list_del(struct list_head *prev, struct list_head *next) +{ + next->prev = prev; + WRITE_ONCE(prev->next, next); +} + static inline void list_del(struct list_head *entry) { - entry->next->prev = entry->prev; - entry->prev->next = entry->next; + __list_del(entry->prev, entry->next); } static inline void @@ -183,6 +205,11 @@ list_del_init(struct list_head *entry) for (p = list_entry((h)->prev, typeof(*p), field); &(p)->field != (h); \ p = list_entry((p)->field.prev, typeof(*p), field)) +#define list_for_each_entry_safe_reverse(p, n, h, field) \ + for (p = list_entry((h)->prev, typeof(*p), field), \ + n = list_entry((p)->field.prev, typeof(*p), field); &(p)->field != (h); \ + p = n, n = list_entry(n->field.prev, typeof(*n), field)) + #define list_for_each_entry_continue_reverse(p, h, field) \ for (p = list_entry((p)->field.prev, typeof(*p), field); &(p)->field != (h); \ p = list_entry((p)->field.prev, typeof(*p), field))