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); _______________________________________________ svn-src-head@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/svn-src-head To unsubscribe, send any mail to "svn-src-head-unsubscr...@freebsd.org"
