128 	register struct dquot *dqp;  in qtinit2()  local
146 	for (dqp = dquot; dqp < dquotNDQUOT; dqp++) {  in qtinit2()
147 		mutex_init(&dqp->dq_lock, NULL, MUTEX_DEFAULT, NULL);  in qtinit2()
148 		dqp->dq_forw = dqp->dq_back = dqp;  in qtinit2()
149 		dqinsheadfree(dqp);  in qtinit2()
164 	struct dquot *dqp;  in getdiskquota()  local
189 	for (dqp = dhp->dqh_forw; dqp != (DQptr)dhp; dqp = dqp->dq_forw) {  in getdiskquota()
190 		if (dqp->dq_uid != uid || dqp->dq_ufsvfsp != ufsvfsp)  in getdiskquota()
193 		mutex_enter(&dqp->dq_lock);  in getdiskquota()
198 		if (dqp->dq_uid != uid || dqp->dq_ufsvfsp != ufsvfsp) {  in getdiskquota()
199 			mutex_exit(&dqp->dq_lock);  in getdiskquota()
202 		if (dqp->dq_flags & DQ_ERROR) {  in getdiskquota()
203 			mutex_exit(&dqp->dq_lock);  in getdiskquota()
210 		if (dqp->dq_cnt == 0) {  in getdiskquota()
212 			dqremfree(dqp);  in getdiskquota()
215 		dqp->dq_cnt++;  in getdiskquota()
216 		mutex_exit(&dqp->dq_lock);  in getdiskquota()
217 		*dqpp = dqp;  in getdiskquota()
225 	if ((dqp = dqfreelist.dq_freef) == &dqfreelist) {  in getdiskquota()
232 	if (dqp->dq_cnt != 0 || dqp->dq_flags != 0) {  in getdiskquota()
235 		    dqp->dq_cnt, dqp->dq_flags, qip->i_fs->fs_fsmnt);  in getdiskquota()
242 	dqremfree(dqp);  in getdiskquota()
244 	remque(dqp);  in getdiskquota()
245 	dqp->dq_cnt = 1;  in getdiskquota()
246 	dqp->dq_uid = uid;  in getdiskquota()
247 	dqp->dq_ufsvfsp = ufsvfsp;  in getdiskquota()
248 	dqp->dq_mof = UFS_HOLE;  in getdiskquota()
249 	mutex_enter(&dqp->dq_lock);  in getdiskquota()
250 	insque(dqp, dhp);  in getdiskquota()
265 		error = ufs_rdwri(UIO_READ, FREAD, qip, (caddr_t)&dqp->dq_dqb,  in getdiskquota()
275 			dqp->dq_mof = ldbtob(bn) +  in getdiskquota()
278 			dqp->dq_mof = UFS_HOLE;  in getdiskquota()
287 			dqp->dq_flags = DQ_ERROR;  in getdiskquota()
294 			mutex_exit(&dqp->dq_lock);  in getdiskquota()
296 			mutex_enter(&dqp->dq_lock);  in getdiskquota()
297 			remque(dqp);  in getdiskquota()
298 			mutex_exit(&dqp->dq_lock);  in getdiskquota()
305 			dqp->dq_cnt = 0;  in getdiskquota()
306 			dqp->dq_ufsvfsp = NULL;  in getdiskquota()
307 			dqp->dq_forw = dqp;  in getdiskquota()
308 			dqp->dq_back = dqp;  in getdiskquota()
309 			dqp->dq_mof = UFS_HOLE;  in getdiskquota()
310 			dqp->dq_flags = 0;  in getdiskquota()
311 			dqinsheadfree(dqp);  in getdiskquota()
316 		bzero(&dqp->dq_dqb, sizeof (struct dqblk));  in getdiskquota()
317 		dqp->dq_mof = UFS_HOLE;  in getdiskquota()
319 	mutex_exit(&dqp->dq_lock);  in getdiskquota()
320 	*dqpp = dqp;  in getdiskquota()
328 dqput(dqp)  in dqput()  argument
329 	register struct dquot *dqp;  in dqput()
332 	ASSERT(dqp->dq_ufsvfsp == NULL ||
333 		RW_LOCK_HELD(&dqp->dq_ufsvfsp->vfs_dqrwlock));
334 	ASSERT(MUTEX_HELD(&dqp->dq_lock));
335 	if (dqp->dq_cnt == 0) {
337 			dqp->dq_ufsvfsp && dqp->dq_ufsvfsp->vfs_root?
338 			dqp->dq_ufsvfsp->vfs_root: NULL,
342 	if (--dqp->dq_cnt == 0) {
343 		if (dqp->dq_flags & DQ_MOD)
344 			dqupdate(dqp);
350 		dqp->dq_flags = 0;
351 		if (dqp->dq_ufsvfsp == NULL ||
352 		    dqp->dq_ufsvfsp->vfs_qflags == 0) {
354 			dqinval(dqp);
356 			dqinstailfree(dqp);
364 dqupdate(dqp)  in dqupdate()  argument
365 	register struct dquot *dqp;  in dqupdate()
373 	ASSERT(MUTEX_HELD(&dqp->dq_lock));
375 	if (!dqp->dq_ufsvfsp) {
379 	vfs_root = dqp->dq_ufsvfsp->vfs_root;
391 	qip = dqp->dq_ufsvfsp->vfs_qinod;
402 	if (ufsvfsp != dqp->dq_ufsvfsp) {
407 	if (!(dqp->dq_flags & DQ_MOD)) {
419 		TRANS_DELTA(ufsvfsp, dqp->dq_mof, sizeof (struct dqblk),
421 		TRANS_LOG(ufsvfsp, (caddr_t)&dqp->dq_dqb, dqp->dq_mof,
433 		if (dqoff(dqp->dq_uid) >= 0) {
435 					(caddr_t)&dqp->dq_dqb,
437 					dqoff(dqp->dq_uid), UIO_SYSSPACE,
443 	dqp->dq_flags &= ~DQ_MOD;
461 dqinval(dqp)  in dqinval()  argument
462 	register struct dquot *dqp;  in dqinval()
464 	ASSERT(MUTEX_HELD(&dqp->dq_lock));
465 	ASSERT(dqp->dq_cnt == 0);
466 	ASSERT(dqp->dq_flags == 0);
467 	ASSERT(dqp->dq_freef == NULL && dqp->dq_freeb == NULL);
468 	ASSERT(dqp->dq_ufsvfsp &&
469 		(dqp->dq_ufsvfsp->vfs_qflags & MQ_ENABLED) == 0);
477 	dqp->dq_ufsvfsp = NULL;
478 	mutex_exit(&dqp->dq_lock);
480 	mutex_enter(&dqp->dq_lock);
486 	ASSERT(dqp->dq_cnt == 0);
487 	ASSERT(dqp->dq_flags == 0);
488 	ASSERT(dqp->dq_freef == NULL && dqp->dq_freeb == NULL);
489 	ASSERT(dqp->dq_ufsvfsp == NULL);
495 	remque(dqp);
497 	dqp->dq_forw = dqp;
498 	dqp->dq_back = dqp;
499 	dqinsheadfree(dqp);
509 	register struct dquot *dqp;  local
531 	for (dqp = dquot; dqp < dquotNDQUOT; dqp++) {
544 		if (!mutex_tryenter(&dqp->dq_lock)) {
565 		if (dqp->dq_ufsvfsp == ufsvfsp) {
566 			ASSERT(dqp->dq_cnt == 0 || (dqp->dq_cnt == 1 &&
567 			    (dqp->dq_flags & DQ_TRANS)));
570 			if (dqp->dq_cnt == 1 && (dqp->dq_flags & DQ_TRANS)) {
571 				mutex_exit(&dqp->dq_lock);
575 			ASSERT(dqp->dq_cnt == 0);
576 			ASSERT(dqp->dq_freef && dqp->dq_freeb);
584 			dqremfree(dqp);
586 			dqinval(dqp);
589 		mutex_exit(&dqp->dq_lock);