bsd/kern/kern_lockf.c

368 	struct lockf **lf = lock->lf_head;
370 	while (*lf != NOLOCKF) {
372 		if ((*lf == lock) ||
373 		    ((*lf)->lf_id != lock->lf_id) ||
374 		    ((*lf)->lf_type != lock->lf_type)) {
375 			lf = &(*lf)->lf_next;
383 		if ((*lf)->lf_end != -1 &&
384 		    ((*lf)->lf_end + 1) == lock->lf_start) {
385 			struct lockf *adjacent = *lf;
388 			lock->lf_start = (*lf)->lf_start;
389 			*lf = lock;
390 			lf = &(*lf)->lf_next;
399 		    (lock->lf_end + 1) == (*lf)->lf_start) {
400 			struct lockf *adjacent = *lf;
403 			lock->lf_end = (*lf)->lf_end;
404 			lock->lf_next = (*lf)->lf_next;
405 			lf = &lock->lf_next;
414 		lf = &(*lf)->lf_next;
781 	struct lockf *lf = *head;
785 	if (lf == NOLOCKF)
794 	while ((ovcase = lf_findoverlap(lf, unlock, SELF, &prev, &overlap)) != OVERLAP_NONE) {
825 			lf = overlap->lf_next;
832 			lf = overlap->lf_next;
918 	struct lockf **prev, *overlap, *lf = *(lock->lf_head);
921 	    lf_findoverlap(lf, lock, OTHERS, &prev, &overlap) != OVERLAP_NONE;
922 	    lf = overlap->lf_next) {
948  * Parameters:	lf			First lock on lock list
988 lf_findoverlap(struct lockf *lf, struct lockf *lock, int type,
994 	*overlap = lf;
995 	if (lf == NOLOCKF)
1003 	while (lf != NOLOCKF) {
1004 		if (((type & SELF) && lf->lf_id != lock->lf_id) ||
1005 		    ((type & OTHERS) && lf->lf_id == lock->lf_id)) {
1019 			*prev = &lf->lf_next;
1020 			*overlap = lf = lf->lf_next;
1030 			lf_print("\tchecking", lf);
1035 		if ((lf->lf_end != -1 && start > lf->lf_end) ||
1036 		    (end != -1 && lf->lf_start > end)) {
1044 			if ((type & SELF) && end != -1 && lf->lf_start > end)
1046 			*prev = &lf->lf_next;
1047 			*overlap = lf = lf->lf_next;
1050 		if ((lf->lf_start == start) && (lf->lf_end == end)) {
1054 		if ((lf->lf_start <= start) &&
1056 		    ((lf->lf_end >= end) || (lf->lf_end == -1))) {
1060 		if (start <= lf->lf_start &&
1062 			   (lf->lf_end != -1 && end >= lf->lf_end))) {
1066 		if ((lf->lf_start < start) &&
1067 			((lf->lf_end >= start) || (lf->lf_end == -1))) {
1071 		if ((lf->lf_start > start) &&
1073 			((lf->lf_end > end) || (lf->lf_end == -1))) {
1272 	struct lockf *lf, *blk;
1279 	for (lf = lock->lf_vnode->v_lockf; lf; lf = lf->lf_next) {
1280 		printf("\tlock %p for ",(void *)lf);
1281 		if (lf->lf_flags & F_POSIX)
1283 			    (long)((struct proc *)lf->lf_id)->p_pid);
1285 			printf("id %p", (void *)lf->lf_id);
1287 		    lf->lf_type == F_RDLCK ? "shared" :
1288 		    lf->lf_type == F_WRLCK ? "exclusive" :
1289 		    lf->lf_type == F_UNLCK ? "unlock" :
1290 		    "unknown", (intmax_t)lf->lf_start, (intmax_t)lf->lf_end);
1291 		TAILQ_FOREACH(blk, &lf->lf_blkhd, lf_block) {