From owner-svn-src-all@freebsd.org Mon Aug 5 20:11:58 2019 Return-Path: Delivered-To: svn-src-all@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 3F688AC258; Mon, 5 Aug 2019 20:11:58 +0000 (UTC) (envelope-from oshogbo@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 462TSZ13JQz4962; Mon, 5 Aug 2019 20:11:58 +0000 (UTC) (envelope-from oshogbo@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 05C1C20FF0; Mon, 5 Aug 2019 20:11:58 +0000 (UTC) (envelope-from oshogbo@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.37]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id x75KBvCd087717; Mon, 5 Aug 2019 20:11:57 GMT (envelope-from oshogbo@FreeBSD.org) Received: (from oshogbo@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id x75KBvot087715; Mon, 5 Aug 2019 20:11:57 GMT (envelope-from oshogbo@FreeBSD.org) Message-Id: <201908052011.x75KBvot087715@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: oshogbo set sender to oshogbo@FreeBSD.org using -f From: Mariusz Zaborski Date: Mon, 5 Aug 2019 20:11:57 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r350611 - in head/sys: kern sys X-SVN-Group: head X-SVN-Commit-Author: oshogbo X-SVN-Commit-Paths: in head/sys: kern sys X-SVN-Commit-Revision: 350611 X-SVN-Commit-Repository: base 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: 2.1.29 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, 05 Aug 2019 20:11:58 -0000 Author: oshogbo Date: Mon Aug 5 20:11:57 2019 New Revision: 350611 URL: https://svnweb.freebsd.org/changeset/base/350611 Log: proc: introduce the proc_add_orphan function This API allows adding the process to its parent orphan list. Reviewed by: kib, markj MFC after: 1 month Modified: head/sys/kern/kern_exit.c head/sys/sys/proc.h Modified: head/sys/kern/kern_exit.c ============================================================================== --- head/sys/kern/kern_exit.c Mon Aug 5 19:59:23 2019 (r350610) +++ head/sys/kern/kern_exit.c Mon Aug 5 20:11:57 2019 (r350611) @@ -1355,6 +1355,24 @@ loop_locked: goto loop; } +void +proc_add_orphan(struct proc *child, struct proc *parent) +{ + + sx_assert(&proctree_lock, SX_XLOCKED); + KASSERT((child->p_flag & P_TRACED) != 0, + ("proc_add_orphan: not traced")); + + if (LIST_EMPTY(&parent->p_orphans)) { + child->p_treeflag |= P_TREE_FIRST_ORPHAN; + LIST_INSERT_HEAD(&parent->p_orphans, child, p_orphan); + } else { + LIST_INSERT_AFTER(LIST_FIRST(&parent->p_orphans), + child, p_orphan); + } + child->p_treeflag |= P_TREE_ORPHANED; +} + /* * Make process 'parent' the new parent of process 'child'. * Must be called with an exclusive hold of proctree lock. @@ -1375,16 +1393,8 @@ proc_reparent(struct proc *child, struct proc *parent, LIST_INSERT_HEAD(&parent->p_children, child, p_sibling); proc_clear_orphan(child); - if (child->p_flag & P_TRACED) { - if (LIST_EMPTY(&child->p_pptr->p_orphans)) { - child->p_treeflag |= P_TREE_FIRST_ORPHAN; - LIST_INSERT_HEAD(&child->p_pptr->p_orphans, child, - p_orphan); - } else { - LIST_INSERT_AFTER(LIST_FIRST(&child->p_pptr->p_orphans), - child, p_orphan); - } - child->p_treeflag |= P_TREE_ORPHANED; + if ((child->p_flag & P_TRACED) != 0) { + proc_add_orphan(child, child->p_pptr); } child->p_pptr = parent; Modified: head/sys/sys/proc.h ============================================================================== --- head/sys/sys/proc.h Mon Aug 5 19:59:23 2019 (r350610) +++ head/sys/sys/proc.h Mon Aug 5 20:11:57 2019 (r350611) @@ -1069,6 +1069,7 @@ void proc_linkup(struct proc *p, struct thread *td); struct proc *proc_realparent(struct proc *child); void proc_reap(struct thread *td, struct proc *p, int *status, int options); void proc_reparent(struct proc *child, struct proc *newparent, bool set_oppid); +void proc_add_orphan(struct proc *child, struct proc *parent); void proc_set_traced(struct proc *p, bool stop); void proc_wkilled(struct proc *p); struct pstats *pstats_alloc(void);