sys/kern/kern_conf.c

87 	struct cdevsw *csw;
106 	while ((csw = SLIST_FIRST(&csw_free)) != NULL) {
108 		free(csw, M_DEVT);
125 cdevsw_free_devlocked(struct cdevsw *csw)
129 	SLIST_INSERT_HEAD(&cdevsw_gt_post_list, csw, d_postfree_list);
179 	struct cdevsw *csw;
188 	csw = dev->si_devsw;
189 	if (csw != NULL) {
194 			csw = NULL;
198 	return (csw);
204 	struct cdevsw *csw;
216 		csw = dev->si_devsw;
217 		KASSERT(csw != NULL, ("Eternal cdev is destroyed"));
219 		return (csw);
222 	csw = NULL;
231 		csw = dev->si_devsw;
232 		if (csw != NULL)
236 	if (csw != NULL) {
240 	return (csw);
566 	struct cdevsw *csw;
569 	csw = args->mda_devsw;
571 	if (csw->d_flags & D_NEEDMINOR) {
573 		LIST_FOREACH(si2, &csw->d_devs, si_list) {
596 	/* Only push to csw->d_devs if it's not a cloned device. */
598 		si->si_devsw = csw;
599 		LIST_INSERT_HEAD(&csw->d_devs, si, si_list);
601 		KASSERT(si->si_devsw == csw,
1090 	struct cdevsw *csw;
1133 	csw = dev->si_devsw;
1135 	while (csw != NULL && csw->d_purge != NULL && dev->si_threadcount) {
1136 		csw->d_purge(dev);
1137 		msleep(csw, &devmtx, PRIBIO, "devprg", hz/10);
1144 		msleep(&csw, &devmtx, PRIBIO, "devdrn", hz / 10);
1169 		if (LIST_EMPTY(&csw->d_devs)) {
1170 			fini_cdevsw(csw);
1171 			wakeup(&csw->d_devs);
1297 clone_create(struct clonedevs **cdp, struct cdevsw *csw, int *up,
1306 	    ("clone_setup() not called in driver \"%s\"", csw->d_name));
1311 	KASSERT(csw->d_flags & D_NEEDMINOR,
1326 	prep_cdevsw(csw, MAKEDEV_WAITOK);
1356 	args.mda_devsw = csw;
1487 destroy_dev_drain(struct cdevsw *csw)
1491 	while (!LIST_EMPTY(&csw->d_devs)) {
1492 		msleep(&csw->d_devs, &devmtx, PRIBIO, "devscd", hz/10);