bsd/kern/kern_lockf.c

373 	struct lockf **lf = lock->lf_head;
375 	while (*lf != NOLOCKF) {
377 		if ((*lf == lock) ||
378 		    ((*lf)->lf_id != lock->lf_id) ||
379 		    ((*lf)->lf_type != lock->lf_type)) {
380 			lf = &(*lf)->lf_next;
388 		if ((*lf)->lf_end != -1 &&
389 		    ((*lf)->lf_end + 1) == lock->lf_start) {
390 			struct lockf *adjacent = *lf;
393 			lock->lf_start = (*lf)->lf_start;
394 			*lf = lock;
395 			lf = &(*lf)->lf_next;
404 		    (lock->lf_end + 1) == (*lf)->lf_start) {
405 			struct lockf *adjacent = *lf;
408 			lock->lf_end = (*lf)->lf_end;
409 			lock->lf_next = (*lf)->lf_next;
410 			lf = &lock->lf_next;
419 		lf = &(*lf)->lf_next;
829 	struct lockf *lf = *head;
833 	if (lf == NOLOCKF)
842 	while ((ovcase = lf_findoverlap(lf, unlock, SELF, &prev, &overlap)) != OVERLAP_NONE) {
878 			lf = overlap->lf_next;
885 			lf = overlap->lf_next;
971 	struct lockf **prev, *overlap, *lf = *(lock->lf_head);
974 	    lf_findoverlap(lf, lock, OTHERS, &prev, &overlap) != OVERLAP_NONE;
975 	    lf = overlap->lf_next) {
1001  * Parameters:	lf			First lock on lock list
1041 lf_findoverlap(struct lockf *lf, struct lockf *lock, int type,
1047 	*overlap = lf;
1048 	if (lf == NOLOCKF)
1056 	while (lf != NOLOCKF) {
1057 		if (((type & SELF) && lf->lf_id != lock->lf_id) ||
1058 		    ((type & OTHERS) && lf->lf_id == lock->lf_id)) {
1072 			*prev = &lf->lf_next;
1073 			*overlap = lf = lf->lf_next;
1083 			lf_print("\tchecking", lf);
1088 		if ((lf->lf_end != -1 && start > lf->lf_end) ||
1089 		    (end != -1 && lf->lf_start > end)) {
1097 			if ((type & SELF) && end != -1 && lf->lf_start > end)
1099 			*prev = &lf->lf_next;
1100 			*overlap = lf = lf->lf_next;
1103 		if ((lf->lf_start == start) && (lf->lf_end == end)) {
1107 		if ((lf->lf_start <= start) &&
1109 		    ((lf->lf_end >= end) || (lf->lf_end == -1))) {
1113 		if (start <= lf->lf_start &&
1115 			   (lf->lf_end != -1 && end >= lf->lf_end))) {
1119 		if ((lf->lf_start < start) &&
1120 			((lf->lf_end >= start) || (lf->lf_end == -1))) {
1124 		if ((lf->lf_start > start) &&
1126 			((lf->lf_end > end) || (lf->lf_end == -1))) {
1325 	struct lockf *lf, *blk;
1332 	for (lf = lock->lf_vnode->v_lockf; lf; lf = lf->lf_next) {
1333 		printf("\tlock %p for ",(void *)lf);
1334 		if (lf->lf_flags & F_POSIX)
1336 			    (long)((struct proc *)lf->lf_id)->p_pid);
1338 			printf("id %p", (void *)lf->lf_id);
1340 		    lf->lf_type == F_RDLCK ? "shared" :
1341 		    lf->lf_type == F_WRLCK ? "exclusive" :
1342 		    lf->lf_type == F_UNLCK ? "unlock" :
1343 		    "unknown", (intmax_t)lf->lf_start, (intmax_t)lf->lf_end);
1344 		TAILQ_FOREACH(blk, &lf->lf_blkhd, lf_block) {