From owner-svn-src-stable@freebsd.org Wed Jul 17 16:34:33 2019 Return-Path: Delivered-To: svn-src-stable@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id 46C45B0BF2; Wed, 17 Jul 2019 16:34:33 +0000 (UTC) (envelope-from johalun@FreeBSD.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) server-signature RSA-PSS (4096 bits) client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.nyi.freebsd.org", Issuer "Let's Encrypt Authority X3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 28D0F89717; Wed, 17 Jul 2019 16:34:33 +0000 (UTC) (envelope-from johalun@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 mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id 052F9212F4; Wed, 17 Jul 2019 16:34:33 +0000 (UTC) (envelope-from johalun@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.37]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id x6HGYWKB093138; Wed, 17 Jul 2019 16:34:32 GMT (envelope-from johalun@FreeBSD.org) Received: (from johalun@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id x6HGYW1i093135; Wed, 17 Jul 2019 16:34:32 GMT (envelope-from johalun@FreeBSD.org) Message-Id: <201907171634.x6HGYW1i093135@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: johalun set sender to johalun@FreeBSD.org using -f From: Johannes Lundberg Date: Wed, 17 Jul 2019 16:34:32 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-12@freebsd.org Subject: svn commit: r350083 - in stable/12/sys: compat/linuxkpi/common/include/linux sys X-SVN-Group: stable-12 X-SVN-Commit-Author: johalun X-SVN-Commit-Paths: in stable/12/sys: compat/linuxkpi/common/include/linux sys X-SVN-Commit-Revision: 350083 X-SVN-Commit-Repository: base MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Rspamd-Queue-Id: 28D0F89717 X-Spamd-Bar: -- Authentication-Results: mx1.freebsd.org X-Spamd-Result: default: False [-2.94 / 15.00]; local_wl_from(0.00)[FreeBSD.org]; NEURAL_HAM_MEDIUM(-1.00)[-0.999,0]; NEURAL_HAM_LONG(-1.00)[-1.000,0]; NEURAL_HAM_SHORT(-0.94)[-0.945,0]; ASN(0.00)[asn:11403, ipnet:2610:1c1:1::/48, country:US] X-BeenThere: svn-src-stable@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: SVN commit messages for all the -stable branches of the src tree List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 17 Jul 2019 16:34:33 -0000 Author: johalun Date: Wed Jul 17 16:34:32 2019 New Revision: 350083 URL: https://svnweb.freebsd.org/changeset/base/350083 Log: MFC r349277: LinuxKPI: Additions to rcu list. - Add rcu list functions. - Make rcu hlist's foreach macro use rcu calls instead of the non-rcu macro. - Bump FreeBSD version so we have a checkpoint for the vboxvideo drm driver. Reviewed by: hps Approved by: imp (mentor), hps MFC after: 1 week Differential Revision: D20719 Modified: stable/12/sys/compat/linuxkpi/common/include/linux/rculist.h stable/12/sys/sys/param.h Directory Properties: stable/12/ (props changed) Modified: stable/12/sys/compat/linuxkpi/common/include/linux/rculist.h ============================================================================== --- stable/12/sys/compat/linuxkpi/common/include/linux/rculist.h Wed Jul 17 16:31:50 2019 (r350082) +++ stable/12/sys/compat/linuxkpi/common/include/linux/rculist.h Wed Jul 17 16:34:32 2019 (r350083) @@ -33,6 +33,25 @@ #include #include +#define list_entry_rcu(ptr, type, member) \ + container_of(READ_ONCE(ptr), type, member) + +#define list_next_rcu(head) (*((struct list_head **)(&(head)->next))) + +#define list_for_each_entry_rcu(pos, head, member) \ + for (pos = list_entry_rcu((head)->next, typeof(*(pos)), member); \ + &(pos)->member != (head); \ + pos = list_entry_rcu((pos)->member.next, typeof(*(pos)), member)) + +static inline void +list_add_rcu(struct list_head *new, struct list_head *prev) +{ + new->next = prev->next; + new->prev = prev; + rcu_assign_pointer(list_next_rcu(prev), new); + prev->prev = new; +} + #define hlist_first_rcu(head) (*((struct hlist_node **)(&(head)->first))) #define hlist_next_rcu(node) (*((struct hlist_node **)(&(node)->next))) #define hlist_pprev_rcu(node) (*((struct hlist_node **)((node)->pprev))) @@ -47,8 +66,12 @@ hlist_add_behind_rcu(struct hlist_node *n, struct hlis n->next->pprev = &n->next; } -#define hlist_for_each_entry_rcu(pos, head, member) \ - hlist_for_each_entry(pos, head, member) +#define hlist_for_each_entry_rcu(pos, head, member) \ + for (pos = hlist_entry_safe (rcu_dereference_raw(hlist_first_rcu(head)),\ + typeof(*(pos)), member); \ + (pos); \ + pos = hlist_entry_safe(rcu_dereference_raw(hlist_next_rcu( \ + &(pos)->member)), typeof(*(pos)), member)) static inline void hlist_del_rcu(struct hlist_node *n) Modified: stable/12/sys/sys/param.h ============================================================================== --- stable/12/sys/sys/param.h Wed Jul 17 16:31:50 2019 (r350082) +++ stable/12/sys/sys/param.h Wed Jul 17 16:34:32 2019 (r350083) @@ -60,7 +60,7 @@ * in the range 5 to 9. */ #undef __FreeBSD_version -#define __FreeBSD_version 1200513 /* Master, propagated to newvers */ +#define __FreeBSD_version 1200514 /* Master, propagated to newvers */ /* * __FreeBSD_kernel__ indicates that this system uses the kernel of FreeBSD,