Lines Matching refs:mark
94 void fsnotify_get_mark(struct fsnotify_mark *mark) in fsnotify_get_mark() argument
96 WARN_ON_ONCE(!refcount_read(&mark->refcnt)); in fsnotify_get_mark()
97 refcount_inc(&mark->refcnt); in fsnotify_get_mark()
244 struct fsnotify_mark *mark; in __fsnotify_recalc_mask() local
250 hlist_for_each_entry(mark, &conn->list, obj_list) { in __fsnotify_recalc_mask()
251 if (!(mark->flags & FSNOTIFY_MARK_FLAG_ATTACHED)) in __fsnotify_recalc_mask()
253 new_mask |= fsnotify_calc_mask(mark); in __fsnotify_recalc_mask()
255 !(mark->flags & FSNOTIFY_MARK_FLAG_NO_IREF)) in __fsnotify_recalc_mask()
366 static void fsnotify_final_mark_destroy(struct fsnotify_mark *mark) in fsnotify_final_mark_destroy() argument
368 struct fsnotify_group *group = mark->group; in fsnotify_final_mark_destroy()
372 group->ops->free_mark(mark); in fsnotify_final_mark_destroy()
387 void fsnotify_put_mark(struct fsnotify_mark *mark) in fsnotify_put_mark() argument
389 struct fsnotify_mark_connector *conn = READ_ONCE(mark->connector); in fsnotify_put_mark()
396 if (refcount_dec_and_test(&mark->refcnt)) in fsnotify_put_mark()
397 fsnotify_final_mark_destroy(mark); in fsnotify_put_mark()
405 if (!refcount_dec_and_lock(&mark->refcnt, &conn->lock)) in fsnotify_put_mark()
408 hlist_del_init_rcu(&mark->obj_list); in fsnotify_put_mark()
421 WRITE_ONCE(mark->connector, NULL); in fsnotify_put_mark()
440 list_add(&mark->g_list, &destroy_list); in fsnotify_put_mark()
454 static bool fsnotify_get_mark_safe(struct fsnotify_mark *mark) in fsnotify_get_mark_safe() argument
456 if (!mark) in fsnotify_get_mark_safe()
459 if (refcount_inc_not_zero(&mark->refcnt)) { in fsnotify_get_mark_safe()
460 spin_lock(&mark->lock); in fsnotify_get_mark_safe()
461 if (mark->flags & FSNOTIFY_MARK_FLAG_ATTACHED) { in fsnotify_get_mark_safe()
463 atomic_inc(&mark->group->user_waits); in fsnotify_get_mark_safe()
464 spin_unlock(&mark->lock); in fsnotify_get_mark_safe()
467 spin_unlock(&mark->lock); in fsnotify_get_mark_safe()
468 fsnotify_put_mark(mark); in fsnotify_get_mark_safe()
478 static void fsnotify_put_mark_wake(struct fsnotify_mark *mark) in fsnotify_put_mark_wake() argument
480 if (mark) { in fsnotify_put_mark_wake()
481 struct fsnotify_group *group = mark->group; in fsnotify_put_mark_wake()
483 fsnotify_put_mark(mark); in fsnotify_put_mark_wake()
541 void fsnotify_detach_mark(struct fsnotify_mark *mark) in fsnotify_detach_mark() argument
543 fsnotify_group_assert_locked(mark->group); in fsnotify_detach_mark()
545 refcount_read(&mark->refcnt) < 1 + in fsnotify_detach_mark()
546 !!(mark->flags & FSNOTIFY_MARK_FLAG_ATTACHED)); in fsnotify_detach_mark()
548 spin_lock(&mark->lock); in fsnotify_detach_mark()
550 if (!(mark->flags & FSNOTIFY_MARK_FLAG_ATTACHED)) { in fsnotify_detach_mark()
551 spin_unlock(&mark->lock); in fsnotify_detach_mark()
554 mark->flags &= ~FSNOTIFY_MARK_FLAG_ATTACHED; in fsnotify_detach_mark()
555 list_del_init(&mark->g_list); in fsnotify_detach_mark()
556 spin_unlock(&mark->lock); in fsnotify_detach_mark()
559 fsnotify_put_mark(mark); in fsnotify_detach_mark()
570 void fsnotify_free_mark(struct fsnotify_mark *mark) in fsnotify_free_mark() argument
572 struct fsnotify_group *group = mark->group; in fsnotify_free_mark()
574 spin_lock(&mark->lock); in fsnotify_free_mark()
576 if (!(mark->flags & FSNOTIFY_MARK_FLAG_ALIVE)) { in fsnotify_free_mark()
577 spin_unlock(&mark->lock); in fsnotify_free_mark()
580 mark->flags &= ~FSNOTIFY_MARK_FLAG_ALIVE; in fsnotify_free_mark()
581 spin_unlock(&mark->lock); in fsnotify_free_mark()
589 group->ops->freeing_mark(mark, group); in fsnotify_free_mark()
592 void fsnotify_destroy_mark(struct fsnotify_mark *mark, in fsnotify_destroy_mark() argument
596 fsnotify_detach_mark(mark); in fsnotify_destroy_mark()
598 fsnotify_free_mark(mark); in fsnotify_destroy_mark()
717 static int fsnotify_add_mark_list(struct fsnotify_mark *mark, void *obj, in fsnotify_add_mark_list() argument
742 spin_lock(&mark->lock); in fsnotify_add_mark_list()
745 spin_unlock(&mark->lock); in fsnotify_add_mark_list()
754 hlist_add_head_rcu(&mark->obj_list, &conn->list); in fsnotify_add_mark_list()
762 if ((lmark->group == mark->group) && in fsnotify_add_mark_list()
764 !(mark->group->flags & FSNOTIFY_GROUP_DUPS)) { in fsnotify_add_mark_list()
769 cmp = fsnotify_compare_groups(lmark->group, mark->group); in fsnotify_add_mark_list()
771 hlist_add_before_rcu(&mark->obj_list, &lmark->obj_list); in fsnotify_add_mark_list()
778 hlist_add_behind_rcu(&mark->obj_list, &last->obj_list); in fsnotify_add_mark_list()
787 WRITE_ONCE(mark->connector, conn); in fsnotify_add_mark_list()
790 spin_unlock(&mark->lock); in fsnotify_add_mark_list()
799 int fsnotify_add_mark_locked(struct fsnotify_mark *mark, in fsnotify_add_mark_locked() argument
803 struct fsnotify_group *group = mark->group; in fsnotify_add_mark_locked()
814 spin_lock(&mark->lock); in fsnotify_add_mark_locked()
815 mark->flags |= FSNOTIFY_MARK_FLAG_ALIVE | FSNOTIFY_MARK_FLAG_ATTACHED; in fsnotify_add_mark_locked()
817 list_add(&mark->g_list, &group->marks_list); in fsnotify_add_mark_locked()
818 fsnotify_get_mark(mark); /* for g_list */ in fsnotify_add_mark_locked()
819 spin_unlock(&mark->lock); in fsnotify_add_mark_locked()
821 ret = fsnotify_add_mark_list(mark, obj, obj_type, add_flags); in fsnotify_add_mark_locked()
825 fsnotify_recalc_mask(mark->connector); in fsnotify_add_mark_locked()
829 spin_lock(&mark->lock); in fsnotify_add_mark_locked()
830 mark->flags &= ~(FSNOTIFY_MARK_FLAG_ALIVE | in fsnotify_add_mark_locked()
832 list_del_init(&mark->g_list); in fsnotify_add_mark_locked()
833 spin_unlock(&mark->lock); in fsnotify_add_mark_locked()
835 fsnotify_put_mark(mark); in fsnotify_add_mark_locked()
839 int fsnotify_add_mark(struct fsnotify_mark *mark, void *obj, in fsnotify_add_mark() argument
843 struct fsnotify_group *group = mark->group; in fsnotify_add_mark()
846 ret = fsnotify_add_mark_locked(mark, obj, obj_type, add_flags); in fsnotify_add_mark()
861 struct fsnotify_mark *mark; in fsnotify_find_mark() local
870 hlist_for_each_entry(mark, &conn->list, obj_list) { in fsnotify_find_mark()
871 if (mark->group == group && in fsnotify_find_mark()
872 (mark->flags & FSNOTIFY_MARK_FLAG_ATTACHED)) { in fsnotify_find_mark()
873 fsnotify_get_mark(mark); in fsnotify_find_mark()
875 return mark; in fsnotify_find_mark()
887 struct fsnotify_mark *lmark, *mark; in fsnotify_clear_marks_by_group() local
906 list_for_each_entry_safe(mark, lmark, &group->marks_list, g_list) { in fsnotify_clear_marks_by_group()
907 if (mark->connector->type == obj_type) in fsnotify_clear_marks_by_group()
908 list_move(&mark->g_list, &to_free); in fsnotify_clear_marks_by_group()
919 mark = list_first_entry(head, struct fsnotify_mark, g_list); in fsnotify_clear_marks_by_group()
920 fsnotify_get_mark(mark); in fsnotify_clear_marks_by_group()
921 fsnotify_detach_mark(mark); in fsnotify_clear_marks_by_group()
923 fsnotify_free_mark(mark); in fsnotify_clear_marks_by_group()
924 fsnotify_put_mark(mark); in fsnotify_clear_marks_by_group()
932 struct fsnotify_mark *mark, *old_mark = NULL; in fsnotify_destroy_marks() local
946 hlist_for_each_entry(mark, &conn->list, obj_list) { in fsnotify_destroy_marks()
947 fsnotify_get_mark(mark); in fsnotify_destroy_marks()
951 old_mark = mark; in fsnotify_destroy_marks()
952 fsnotify_destroy_mark(mark, mark->group); in fsnotify_destroy_marks()
970 void fsnotify_init_mark(struct fsnotify_mark *mark, in fsnotify_init_mark() argument
973 memset(mark, 0, sizeof(*mark)); in fsnotify_init_mark()
974 spin_lock_init(&mark->lock); in fsnotify_init_mark()
975 refcount_set(&mark->refcnt, 1); in fsnotify_init_mark()
977 mark->group = group; in fsnotify_init_mark()
978 WRITE_ONCE(mark->connector, NULL); in fsnotify_init_mark()
988 struct fsnotify_mark *mark, *next; in fsnotify_mark_destroy_workfn() local
998 list_for_each_entry_safe(mark, next, &private_destroy_list, g_list) { in fsnotify_mark_destroy_workfn()
999 list_del_init(&mark->g_list); in fsnotify_mark_destroy_workfn()
1000 fsnotify_final_mark_destroy(mark); in fsnotify_mark_destroy_workfn()