fs/devfs/devfs_devs.c

334 devfs_rmdir_empty(struct devfs_mount *dm, struct devfs_dirent *de)
338 	sx_assert(&dm->dm_lock, SX_XLOCKED);
344 		if ((de->de_flags & DE_DOOMED) != 0 || de == dm->dm_rootdir)
361 		devfs_delete(dm, de, DEVFS_DEL_NORECURSE);
362 		devfs_delete(dm, de_dot, DEVFS_DEL_NORECURSE);
363 		devfs_delete(dm, de_dotdot, DEVFS_DEL_NORECURSE);
374  * The caller needs to hold the dm for the duration of the call since
375  * dm->dm_lock may be temporary dropped.
378 devfs_delete(struct devfs_mount *dm, struct devfs_dirent *de, int flags)
393 			devfs_dir_unref_de(dm, dd);
403 		sx_unlock(&dm->dm_lock);
408 		sx_xlock(&dm->dm_lock);
429 			devfs_rmdir_empty(dm, dd);
436  * The caller needs to hold the dm for the duration of the call.
440 devfs_purge(struct devfs_mount *dm, struct devfs_dirent *dd)
444 	sx_assert(&dm->dm_lock, SX_XLOCKED);
458 			devfs_dir_unref_de(dm, dd);
460 			devfs_delete(dm, de, DEVFS_DEL_NORECURSE);
462 			devfs_purge(dm, de);
464 			devfs_delete(dm, de, DEVFS_DEL_NORECURSE);
469 		devfs_delete(dm, dd, DEVFS_DEL_NORECURSE);
479 devfs_metoo(struct cdev_priv *cdp, struct devfs_mount *dm)
484 	siz = (dm->dm_idx + 1) * sizeof *dep;
487 	if (dm->dm_idx <= cdp->cdp_maxdirent) {
500 	cdp->cdp_maxdirent = dm->dm_idx;
506  * The caller needs to hold the dm for the duration of the call.
509 devfs_populate_loop(struct devfs_mount *dm, int cleanup)
518 	sx_assert(&dm->dm_lock, SX_XLOCKED);
531 		    dm->dm_idx <= cdp->cdp_maxdirent &&
532 		    cdp->cdp_dirents[dm->dm_idx] != NULL) {
533 			de = cdp->cdp_dirents[dm->dm_idx];
534 			cdp->cdp_dirents[dm->dm_idx] = NULL;
544 			devfs_delete(dm, de, 0);
569 		if (dm->dm_idx <= cdp->cdp_maxdirent &&
570 		    cdp->cdp_dirents[dm->dm_idx] != NULL) {
571 			de = cdp->cdp_dirents[dm->dm_idx];
579 		if (dm->dm_idx > cdp->cdp_maxdirent)
580 		        devfs_metoo(cdp, dm);
582 		dd = dm->dm_rootdir;
591 				de = devfs_vmkdir(dm, s, q - s, dd, 0);
595 					de = devfs_vmkdir(dm, s, q - s, dd, 0);
619 			while (dt != dm->dm_rootdir &&
638 		mac_devfs_create_device(cdp->cdp_c.si_cred, dm->dm_mount,
643 		devfs_rules_apply(dm, de);
646 		KASSERT(cdp->cdp_dirents[dm->dm_idx] == NULL,
648 		cdp->cdp_dirents[dm->dm_idx] = de;
659 devfs_populate_needed(struct devfs_mount *dm)
662 	return (dm->dm_generation != devfs_generation);
666  * The caller needs to hold the dm for the duration of the call.
669 devfs_populate(struct devfs_mount *dm)
673 	sx_assert(&dm->dm_lock, SX_XLOCKED);
674 	if (!devfs_populate_needed(dm))
677 	while (devfs_populate_loop(dm, 0))
679 	dm->dm_generation = gen;
683  * The caller needs to hold the dm for the duration of the call.
686 devfs_cleanup(struct devfs_mount *dm)
689 	sx_assert(&dm->dm_lock, SX_XLOCKED);
690 	while (devfs_populate_loop(dm, 1))
692 	devfs_purge(dm, dm->dm_rootdir);