fs/devfs/devfs_devs.c

318 devfs_rmdir_empty(struct devfs_mount *dm, struct devfs_dirent *de)
322 	sx_assert(&dm->dm_lock, SX_XLOCKED);
328 		if ((de->de_flags & DE_DOOMED) != 0 || de == dm->dm_rootdir)
345 		devfs_delete(dm, de, DEVFS_DEL_NORECURSE);
346 		devfs_delete(dm, de_dot, DEVFS_DEL_NORECURSE);
347 		devfs_delete(dm, de_dotdot, DEVFS_DEL_NORECURSE);
358  * The caller needs to hold the dm for the duration of the call since
359  * dm->dm_lock may be temporary dropped.
362 devfs_delete(struct devfs_mount *dm, struct devfs_dirent *de, int flags)
377 			devfs_dir_unref_de(dm, dd);
388 		sx_unlock(&dm->dm_lock);
397 		sx_xlock(&dm->dm_lock);
418 			devfs_rmdir_empty(dm, dd);
425  * The caller needs to hold the dm for the duration of the call.
429 devfs_purge(struct devfs_mount *dm, struct devfs_dirent *dd)
433 	sx_assert(&dm->dm_lock, SX_XLOCKED);
447 			devfs_dir_unref_de(dm, dd);
449 			devfs_delete(dm, de, DEVFS_DEL_NORECURSE);
451 			devfs_purge(dm, de);
453 			devfs_delete(dm, de, DEVFS_DEL_NORECURSE);
458 		devfs_delete(dm, dd, DEVFS_DEL_NORECURSE);
468 devfs_metoo(struct cdev_priv *cdp, struct devfs_mount *dm)
473 	siz = (dm->dm_idx + 1) * sizeof *dep;
476 	if (dm->dm_idx <= cdp->cdp_maxdirent) {
490 	cdp->cdp_maxdirent = dm->dm_idx;
495  * The caller needs to hold the dm for the duration of the call.
498 devfs_populate_loop(struct devfs_mount *dm, int cleanup)
507 	sx_assert(&dm->dm_lock, SX_XLOCKED);
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;
531 			devfs_delete(dm, de, 0);
555 		if (dm->dm_idx <= cdp->cdp_maxdirent &&
556 		    cdp->cdp_dirents[dm->dm_idx] != NULL) {
557 			de = cdp->cdp_dirents[dm->dm_idx];
566 		if (dm->dm_idx > cdp->cdp_maxdirent)
567 		        devfs_metoo(cdp, dm);
569 		dd = dm->dm_rootdir;
578 				de = devfs_vmkdir(dm, s, q - s, dd, 0);
582 					de = devfs_vmkdir(dm, s, q - s, dd, 0);
607 			while (dt != dm->dm_rootdir &&
626 		mac_devfs_create_device(cdp->cdp_c.si_cred, dm->dm_mount,
631 		devfs_rules_apply(dm, de);
634 		KASSERT(cdp->cdp_dirents[dm->dm_idx] == NULL,
636 		cdp->cdp_dirents[dm->dm_idx] = de;
647  * The caller needs to hold the dm for the duration of the call.
650 devfs_populate(struct devfs_mount *dm)
654 	sx_assert(&dm->dm_lock, SX_XLOCKED);
656 	if (dm->dm_generation == gen)
658 	while (devfs_populate_loop(dm, 0))
660 	dm->dm_generation = gen;
664  * The caller needs to hold the dm for the duration of the call.
667 devfs_cleanup(struct devfs_mount *dm)
670 	sx_assert(&dm->dm_lock, SX_XLOCKED);
671 	while (devfs_populate_loop(dm, 1))
673 	devfs_purge(dm, dm->dm_rootdir);