fs/devfs/devfs_devs.c

83 	struct cdev_priv *cdp;
93 	TAILQ_FOREACH(cdp, &cdevp_list, cdp_list)
94 		if (cdp->cdp_inode == ud) {
95 			dev = &cdp->cdp_c;
120 	struct cdev_priv *cdp;
124 	cdp = malloc(sizeof *cdp, M_CDEVP, M_ZERO |
126 	if (cdp == NULL)
129 	cdp->cdp_dirents = &cdp->cdp_dirent0;
131 	cdev = &cdp->cdp_c;
142 	struct cdev_priv *cdp;
146 	TAILQ_FOREACH(cdp, &cdevp_list, cdp_list) {
147 		if ((cdp->cdp_flags & CDP_ACTIVE) == 0)
149 		if (devfs_pathpath(cdp->cdp_c.si_name, name) != 0)
151 		if (devfs_pathpath(name, cdp->cdp_c.si_name) != 0)
163 	struct cdev_priv *cdp;
165 	cdp = cdev2priv(cdev);
168 	devfs_free_cdp_inode(cdp->cdp_inode);
169 	if (cdp->cdp_maxdirent > 0)
170 		free(cdp->cdp_dirents, M_DEVFS2);
171 	free(cdp, M_CDEVP);
468 devfs_metoo(struct cdev_priv *cdp, struct devfs_mount *dm)
476 	if (dm->dm_idx <= cdp->cdp_maxdirent) {
482 	memcpy(dep, cdp->cdp_dirents, (cdp->cdp_maxdirent + 1) * sizeof *dep);
483 	if (cdp->cdp_maxdirent > 0)
484 		free(cdp->cdp_dirents, M_DEVFS2);
485 	cdp->cdp_dirents = dep;
490 	cdp->cdp_maxdirent = dm->dm_idx;
500 	struct cdev_priv *cdp;
509 	TAILQ_FOREACH(cdp, &cdevp_list, cdp_list) {
511 		KASSERT(cdp->cdp_dirents != NULL, ("NULL cdp_dirents"));
517 		if ((cleanup || !(cdp->cdp_flags & CDP_ACTIVE)) &&
518 		    dm->dm_idx <= cdp->cdp_maxdirent &&
519 		    cdp->cdp_dirents[dm->dm_idx] != NULL) {
520 			de = cdp->cdp_dirents[dm->dm_idx];
521 			cdp->cdp_dirents[dm->dm_idx] = NULL;
522 			KASSERT(cdp == de->de_cdp,
524 			    cdp->cdp_c.si_name, cdp, de->de_cdp));
533 			cdp->cdp_inuse--;
540 		if (!(cdp->cdp_flags & CDP_ACTIVE)) {
541 			if (cdp->cdp_inuse > 0)
543 			TAILQ_REMOVE(&cdevp_list, cdp, cdp_list);
545 			dev_rel(&cdp->cdp_c);
553 		KASSERT((cdp->cdp_flags & CDP_ACTIVE), ("Bogons, I tell ya'!"));
555 		if (dm->dm_idx <= cdp->cdp_maxdirent &&
556 		    cdp->cdp_dirents[dm->dm_idx] != NULL) {
557 			de = cdp->cdp_dirents[dm->dm_idx];
558 			KASSERT(cdp == de->de_cdp, ("inconsistent cdp"));
563 		cdp->cdp_inuse++;
566 		if (dm->dm_idx > cdp->cdp_maxdirent)
567 		        devfs_metoo(cdp, dm);
570 		s = cdp->cdp_c.si_name;
590 			    __func__, cdp->cdp_c.si_name));
599 		if (cdp->cdp_c.si_flags & SI_ALIAS) {
604 			pdev = cdp->cdp_c.si_parent;
617 			de->de_uid = cdp->cdp_c.si_uid;
618 			de->de_gid = cdp->cdp_c.si_gid;
619 			de->de_mode = cdp->cdp_c.si_mode;
623 		de->de_inode = cdp->cdp_inode;
624 		de->de_cdp = cdp;
626 		mac_devfs_create_device(cdp->cdp_c.si_cred, dm->dm_mount,
627 		    &cdp->cdp_c, de);
633 		/* XXX: could check that cdp is still active here */
634 		KASSERT(cdp->cdp_dirents[dm->dm_idx] == NULL,
636 		cdp->cdp_dirents[dm->dm_idx] = de;
685 	struct cdev_priv *cdp;
688 	cdp = cdev2priv(dev);
689 	cdp->cdp_flags |= CDP_ACTIVE;
690 	cdp->cdp_inode = alloc_unrl(devfs_inos);
692 	TAILQ_INSERT_TAIL(&cdevp_list, cdp, cdp_list);
699 	struct cdev_priv *cdp;
702 	cdp = cdev2priv(dev);
703 	cdp->cdp_flags &= ~CDP_ACTIVE;