From owner-svn-src-all@FreeBSD.ORG Sun May 24 14:37:46 2015 Return-Path: Delivered-To: svn-src-all@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [8.8.178.115]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id C4A17EE0; Sun, 24 May 2015 14:37:46 +0000 (UTC) Received: from svn.freebsd.org (svn.freebsd.org [IPv6:2001:1900:2254:2068::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 98A76169B; Sun, 24 May 2015 14:37:46 +0000 (UTC) Received: from svn.freebsd.org ([127.0.1.70]) by svn.freebsd.org (8.14.9/8.14.9) with ESMTP id t4OEbkG0024407; Sun, 24 May 2015 14:37:46 GMT (envelope-from dchagin@FreeBSD.org) Received: (from dchagin@localhost) by svn.freebsd.org (8.14.9/8.14.9/Submit) id t4OEbkoM024405; Sun, 24 May 2015 14:37:46 GMT (envelope-from dchagin@FreeBSD.org) Message-Id: <201505241437.t4OEbkoM024405@svn.freebsd.org> X-Authentication-Warning: svn.freebsd.org: dchagin set sender to dchagin@FreeBSD.org using -f From: Dmitry Chagin Date: Sun, 24 May 2015 14:37:46 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r283373 - in head/sys: kern sys X-SVN-Group: head 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: 2.1.20 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: Sun, 24 May 2015 14:37:46 -0000 Author: dchagin Date: Sun May 24 14:37:45 2015 New Revision: 283373 URL: https://svnweb.freebsd.org/changeset/base/283373 Log: In preparation for switching linuxulator to the use the native 1:1 threads introduce kern_thr_alloc() which will be used later in the linux_clone(). Differential Revision: https://reviews.freebsd.org/D1029 Reviewed by: trasz Modified: head/sys/kern/kern_thr.c head/sys/sys/syscallsubr.h Modified: head/sys/kern/kern_thr.c ============================================================================== --- head/sys/kern/kern_thr.c Sun May 24 14:36:33 2015 (r283372) +++ head/sys/kern/kern_thr.c Sun May 24 14:37:45 2015 (r283373) @@ -162,12 +162,6 @@ create_thread(struct thread *td, mcontex p = td->td_proc; - /* Have race condition but it is cheap. */ - if (p->p_numthreads >= max_threads_per_proc) { - ++max_threads_hits; - return (EPROCLIM); - } - if (rtp != NULL) { switch(rtp->type) { case RTP_PRIO_REALTIME: @@ -197,11 +191,9 @@ create_thread(struct thread *td, mcontex #endif /* Initialize our td */ - newtd = thread_alloc(0); - if (newtd == NULL) { - error = ENOMEM; + error = kern_thr_alloc(p, 0, &newtd); + if (error) goto fail; - } cpu_set_upcall(newtd, td); @@ -566,3 +558,20 @@ sys_thr_set_name(struct thread *td, stru PROC_UNLOCK(p); return (error); } + +int +kern_thr_alloc(struct proc *p, int pages, struct thread **ntd) +{ + + /* Have race condition but it is cheap. */ + if (p->p_numthreads >= max_threads_per_proc) { + ++max_threads_hits; + return (EPROCLIM); + } + + *ntd = thread_alloc(pages); + if (*ntd == NULL) + return (ENOMEM); + + return (0); +} Modified: head/sys/sys/syscallsubr.h ============================================================================== --- head/sys/sys/syscallsubr.h Sun May 24 14:36:33 2015 (r283372) +++ head/sys/sys/syscallsubr.h Sun May 24 14:37:45 2015 (r283373) @@ -214,6 +214,7 @@ int kern_ktimer_settime(struct thread *t int kern_ktimer_gettime(struct thread *td, int timer_id, struct itimerspec *val); int kern_ktimer_getoverrun(struct thread *td, int timer_id); +int kern_thr_alloc(struct proc *, int pages, struct thread **); int kern_thr_exit(struct thread *td); int kern_thr_new(struct thread *td, struct thr_param *param); int kern_thr_suspend(struct thread *td, struct timespec *tsp);