36 fmd_ustat_chunk_init(fmd_ustat_t *usp, fmd_stat_t *base, uint_t len)  in fmd_ustat_chunk_init()  argument
45 	ASSERT(RW_WRITE_HELD(&usp->us_lock));  in fmd_ustat_chunk_init()
46 	fmd_list_append(&usp->us_chunks, cp);  in fmd_ustat_chunk_init()
52 fmd_ustat_chunk_hold(fmd_ustat_t *usp, fmd_ustat_chunk_t *cp)  in fmd_ustat_chunk_hold()  argument
54 	ASSERT(RW_WRITE_HELD(&usp->us_lock));  in fmd_ustat_chunk_hold()
60 fmd_ustat_chunk_rele(fmd_ustat_t *usp, fmd_ustat_chunk_t *cp)  in fmd_ustat_chunk_rele()  argument
62 	ASSERT(RW_WRITE_HELD(&usp->us_lock));  in fmd_ustat_chunk_rele()
72 		fmd_list_delete(&usp->us_chunks, cp);  in fmd_ustat_chunk_rele()
80 	fmd_ustat_t *usp = fmd_zalloc(sizeof (fmd_ustat_t), FMD_SLEEP);  in fmd_ustat_create()  local
82 	(void) pthread_rwlock_init(&usp->us_lock, NULL);  in fmd_ustat_create()
83 	usp->us_hashlen = fmd.d_str_buckets;  in fmd_ustat_create()
84 	usp->us_hash = fmd_zalloc(sizeof (void *) * usp->us_hashlen, FMD_SLEEP);  in fmd_ustat_create()
86 	return (usp);  in fmd_ustat_create()
90 fmd_ustat_destroy(fmd_ustat_t *usp)  in fmd_ustat_destroy()  argument
95 	(void) pthread_rwlock_wrlock(&usp->us_lock);  in fmd_ustat_destroy()
97 	for (i = 0; i < usp->us_hashlen; i++) {  in fmd_ustat_destroy()
98 		for (ep = usp->us_hash[i]; ep != NULL; ep = np) {  in fmd_ustat_destroy()
103 				fmd_ustat_chunk_rele(usp, ep->use_chunk);  in fmd_ustat_destroy()
110 	ASSERT(usp->us_chunks.l_next == NULL);  in fmd_ustat_destroy()
111 	ASSERT(usp->us_chunks.l_prev == NULL);  in fmd_ustat_destroy()
113 	fmd_free(usp->us_hash, sizeof (void *) * usp->us_hashlen);  in fmd_ustat_destroy()
114 	fmd_free(usp, sizeof (fmd_ustat_t));  in fmd_ustat_destroy()
118 fmd_ustat_snapshot(fmd_ustat_t *usp, fmd_ustat_snap_t *uss)  in fmd_ustat_snapshot()  argument
124 	(void) pthread_rwlock_wrlock(&usp->us_lock);  in fmd_ustat_snapshot()
126 	uss->uss_buf = sp = malloc(sizeof (fmd_stat_t) * usp->us_nelems);  in fmd_ustat_snapshot()
127 	uss->uss_len = usp->us_nelems;  in fmd_ustat_snapshot()
130 		(void) pthread_rwlock_unlock(&usp->us_lock);  in fmd_ustat_snapshot()
134 	for (i = 0; i < usp->us_hashlen; i++) {  in fmd_ustat_snapshot()
135 		for (ep = usp->us_hash[i]; ep != NULL; ep = ep->use_next) {  in fmd_ustat_snapshot()
145 	(void) pthread_rwlock_unlock(&usp->us_lock);  in fmd_ustat_snapshot()
150 fmd_ustat_delete_locked(fmd_ustat_t *usp, uint_t n, fmd_stat_t *sp, int strfree)  in fmd_ustat_delete_locked()  argument
152 	ASSERT(RW_WRITE_HELD(&usp->us_lock));  in fmd_ustat_delete_locked()
155 		uint_t h = fmd_strhash(sp->fmds_name) % usp->us_hashlen;  in fmd_ustat_delete_locked()
156 		fmd_ustat_elem_t *ep, **pp = &usp->us_hash[h];  in fmd_ustat_delete_locked()
172 			fmd_ustat_chunk_rele(usp, ep->use_chunk);  in fmd_ustat_delete_locked()
176 		usp->us_nelems--;  in fmd_ustat_delete_locked()
181 fmd_ustat_insert(fmd_ustat_t *usp, uint_t flags,  in fmd_ustat_insert()  argument
198 	(void) pthread_rwlock_wrlock(&usp->us_lock);  in fmd_ustat_insert()
201 		cp = fmd_ustat_chunk_init(usp, stats, n);  in fmd_ustat_insert()
240 		h = fmd_strhash(sp->fmds_name) % usp->us_hashlen;  in fmd_ustat_insert()
242 		for (ep = usp->us_hash[h]; ep != NULL; ep = ep->use_next) {  in fmd_ustat_insert()
256 		ep->use_next = usp->us_hash[h];  in fmd_ustat_insert()
257 		usp->us_hash[h] = ep;  in fmd_ustat_insert()
262 			fmd_ustat_chunk_hold(usp, cp);  in fmd_ustat_insert()
264 		usp->us_nelems++;  in fmd_ustat_insert()
275 		fmd_ustat_delete_locked(usp, i, stats, FMD_B_FALSE);  in fmd_ustat_insert()
296 		fmd_ustat_chunk_rele(usp, cp);  in fmd_ustat_insert()
298 	(void) pthread_rwlock_unlock(&usp->us_lock);  in fmd_ustat_insert()
303 fmd_ustat_delete(fmd_ustat_t *usp, uint_t n, fmd_stat_t *sp)  in fmd_ustat_delete()  argument
305 	(void) pthread_rwlock_wrlock(&usp->us_lock);  in fmd_ustat_delete()
306 	fmd_ustat_delete_locked(usp, n, sp, FMD_B_TRUE);  in fmd_ustat_delete()
307 	(void) pthread_rwlock_unlock(&usp->us_lock);  in fmd_ustat_delete()
315 fmd_ustat_delete_references(fmd_ustat_t *usp)  in fmd_ustat_delete_references()  argument
320 	(void) pthread_rwlock_wrlock(&usp->us_lock);  in fmd_ustat_delete_references()
322 	for (i = 0; i < usp->us_hashlen; i++) {  in fmd_ustat_delete_references()
323 		for (pp = &usp->us_hash[i], ep = *pp; ep != NULL; ep = *pp) {  in fmd_ustat_delete_references()
334 			usp->us_nelems--;  in fmd_ustat_delete_references()
338 	(void) pthread_rwlock_unlock(&usp->us_lock);  in fmd_ustat_delete_references()