/*- * Copyright (c) 2006-2016 Maxim Sobolev <sobomax@FreeBSD.org> * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ #include <sys/cdefs.h> __FBSDID("$FreeBSD$"); #include <sys/types.h> #include <sys/param.h> #include <sys/lock.h> #include <sys/mutex.h> #include <sys/bio.h> #include <sys/proc.h> #include <sys/sched.h> #include <sys/kthread.h> #include <sys/malloc.h> #include <geom/uzip/g_uzip.h> #include <geom/uzip/g_uzip_softc.h> #include <geom/uzip/g_uzip_wrkthr.h> void g_uzip_wrkthr(void *arg) { struct g_uzip_softc *sc; struct bio *bp; sc = (struct g_uzip_softc *)arg; thread_lock(curthread); sched_prio(curthread, PRIBIO); thread_unlock(curthread); for (;;) { mtx_lock(&sc->queue_mtx); if (sc->wrkthr_flags & GUZ_SHUTDOWN) { sc->wrkthr_flags |= GUZ_EXITING; mtx_unlock(&sc->queue_mtx); kproc_exit(0); } bp = bioq_takefirst(&sc->bio_queue); if (!bp) { msleep(sc, &sc->queue_mtx, PRIBIO | PDROP, "wrkwait", 0); continue; } mtx_unlock(&sc->queue_mtx); sc->uzip_do(sc, bp); } }