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()
160 struct fsnotify_mark *mark; in __fsnotify_recalc_mask() local
166 hlist_for_each_entry(mark, &conn->list, obj_list) { in __fsnotify_recalc_mask()
167 if (!(mark->flags & FSNOTIFY_MARK_FLAG_ATTACHED)) in __fsnotify_recalc_mask()
169 new_mask |= fsnotify_calc_mask(mark); in __fsnotify_recalc_mask()
171 !(mark->flags & FSNOTIFY_MARK_FLAG_NO_IREF)) in __fsnotify_recalc_mask()
272 static void fsnotify_final_mark_destroy(struct fsnotify_mark *mark) in fsnotify_final_mark_destroy() argument
274 struct fsnotify_group *group = mark->group; in fsnotify_final_mark_destroy()
278 group->ops->free_mark(mark); in fsnotify_final_mark_destroy()
293 void fsnotify_put_mark(struct fsnotify_mark *mark) in fsnotify_put_mark() argument
295 struct fsnotify_mark_connector *conn = READ_ONCE(mark->connector); in fsnotify_put_mark()
302 if (refcount_dec_and_test(&mark->refcnt)) in fsnotify_put_mark()
303 fsnotify_final_mark_destroy(mark); in fsnotify_put_mark()
311 if (!refcount_dec_and_lock(&mark->refcnt, &conn->lock)) in fsnotify_put_mark()
314 hlist_del_init_rcu(&mark->obj_list); in fsnotify_put_mark()
322 WRITE_ONCE(mark->connector, NULL); in fsnotify_put_mark()
341 list_add(&mark->g_list, &destroy_list); in fsnotify_put_mark()
355 static bool fsnotify_get_mark_safe(struct fsnotify_mark *mark) in fsnotify_get_mark_safe() argument
357 if (!mark) in fsnotify_get_mark_safe()
360 if (refcount_inc_not_zero(&mark->refcnt)) { in fsnotify_get_mark_safe()
361 spin_lock(&mark->lock); in fsnotify_get_mark_safe()
362 if (mark->flags & FSNOTIFY_MARK_FLAG_ATTACHED) { in fsnotify_get_mark_safe()
364 atomic_inc(&mark->group->user_waits); in fsnotify_get_mark_safe()
365 spin_unlock(&mark->lock); in fsnotify_get_mark_safe()
368 spin_unlock(&mark->lock); in fsnotify_get_mark_safe()
369 fsnotify_put_mark(mark); in fsnotify_get_mark_safe()
379 static void fsnotify_put_mark_wake(struct fsnotify_mark *mark) in fsnotify_put_mark_wake() argument
381 if (mark) { in fsnotify_put_mark_wake()
382 struct fsnotify_group *group = mark->group; in fsnotify_put_mark_wake()
384 fsnotify_put_mark(mark); in fsnotify_put_mark_wake()
442 void fsnotify_detach_mark(struct fsnotify_mark *mark) in fsnotify_detach_mark() argument
444 fsnotify_group_assert_locked(mark->group); in fsnotify_detach_mark()
446 refcount_read(&mark->refcnt) < 1 + in fsnotify_detach_mark()
447 !!(mark->flags & FSNOTIFY_MARK_FLAG_ATTACHED)); in fsnotify_detach_mark()
449 spin_lock(&mark->lock); in fsnotify_detach_mark()
451 if (!(mark->flags & FSNOTIFY_MARK_FLAG_ATTACHED)) { in fsnotify_detach_mark()
452 spin_unlock(&mark->lock); in fsnotify_detach_mark()
455 mark->flags &= ~FSNOTIFY_MARK_FLAG_ATTACHED; in fsnotify_detach_mark()
456 list_del_init(&mark->g_list); in fsnotify_detach_mark()
457 spin_unlock(&mark->lock); in fsnotify_detach_mark()
460 fsnotify_put_mark(mark); in fsnotify_detach_mark()
471 void fsnotify_free_mark(struct fsnotify_mark *mark) in fsnotify_free_mark() argument
473 struct fsnotify_group *group = mark->group; in fsnotify_free_mark()
475 spin_lock(&mark->lock); in fsnotify_free_mark()
477 if (!(mark->flags & FSNOTIFY_MARK_FLAG_ALIVE)) { in fsnotify_free_mark()
478 spin_unlock(&mark->lock); in fsnotify_free_mark()
481 mark->flags &= ~FSNOTIFY_MARK_FLAG_ALIVE; in fsnotify_free_mark()
482 spin_unlock(&mark->lock); in fsnotify_free_mark()
490 group->ops->freeing_mark(mark, group); in fsnotify_free_mark()
493 void fsnotify_destroy_mark(struct fsnotify_mark *mark, in fsnotify_destroy_mark() argument
497 fsnotify_detach_mark(mark); in fsnotify_destroy_mark()
499 fsnotify_free_mark(mark); in fsnotify_destroy_mark()
609 static int fsnotify_add_mark_list(struct fsnotify_mark *mark, in fsnotify_add_mark_list() argument
627 spin_lock(&mark->lock); in fsnotify_add_mark_list()
630 spin_unlock(&mark->lock); in fsnotify_add_mark_list()
661 hlist_add_head_rcu(&mark->obj_list, &conn->list); in fsnotify_add_mark_list()
669 if ((lmark->group == mark->group) && in fsnotify_add_mark_list()
671 !(mark->group->flags & FSNOTIFY_GROUP_DUPS)) { in fsnotify_add_mark_list()
676 cmp = fsnotify_compare_groups(lmark->group, mark->group); in fsnotify_add_mark_list()
678 hlist_add_before_rcu(&mark->obj_list, &lmark->obj_list); in fsnotify_add_mark_list()
685 hlist_add_behind_rcu(&mark->obj_list, &last->obj_list); in fsnotify_add_mark_list()
692 WRITE_ONCE(mark->connector, conn); in fsnotify_add_mark_list()
695 spin_unlock(&mark->lock); in fsnotify_add_mark_list()
704 int fsnotify_add_mark_locked(struct fsnotify_mark *mark, in fsnotify_add_mark_locked() argument
708 struct fsnotify_group *group = mark->group; in fsnotify_add_mark_locked()
719 spin_lock(&mark->lock); in fsnotify_add_mark_locked()
720 mark->flags |= FSNOTIFY_MARK_FLAG_ALIVE | FSNOTIFY_MARK_FLAG_ATTACHED; in fsnotify_add_mark_locked()
722 list_add(&mark->g_list, &group->marks_list); in fsnotify_add_mark_locked()
723 fsnotify_get_mark(mark); /* for g_list */ in fsnotify_add_mark_locked()
724 spin_unlock(&mark->lock); in fsnotify_add_mark_locked()
726 ret = fsnotify_add_mark_list(mark, connp, obj_type, add_flags, fsid); in fsnotify_add_mark_locked()
730 fsnotify_recalc_mask(mark->connector); in fsnotify_add_mark_locked()
734 spin_lock(&mark->lock); in fsnotify_add_mark_locked()
735 mark->flags &= ~(FSNOTIFY_MARK_FLAG_ALIVE | in fsnotify_add_mark_locked()
737 list_del_init(&mark->g_list); in fsnotify_add_mark_locked()
738 spin_unlock(&mark->lock); in fsnotify_add_mark_locked()
740 fsnotify_put_mark(mark); in fsnotify_add_mark_locked()
744 int fsnotify_add_mark(struct fsnotify_mark *mark, fsnotify_connp_t *connp, in fsnotify_add_mark() argument
749 struct fsnotify_group *group = mark->group; in fsnotify_add_mark()
752 ret = fsnotify_add_mark_locked(mark, connp, obj_type, add_flags, fsid); in fsnotify_add_mark()
766 struct fsnotify_mark *mark; in fsnotify_find_mark() local
772 hlist_for_each_entry(mark, &conn->list, obj_list) { in fsnotify_find_mark()
773 if (mark->group == group && in fsnotify_find_mark()
774 (mark->flags & FSNOTIFY_MARK_FLAG_ATTACHED)) { in fsnotify_find_mark()
775 fsnotify_get_mark(mark); in fsnotify_find_mark()
777 return mark; in fsnotify_find_mark()
789 struct fsnotify_mark *lmark, *mark; in fsnotify_clear_marks_by_group() local
808 list_for_each_entry_safe(mark, lmark, &group->marks_list, g_list) { in fsnotify_clear_marks_by_group()
809 if (mark->connector->type == obj_type) in fsnotify_clear_marks_by_group()
810 list_move(&mark->g_list, &to_free); in fsnotify_clear_marks_by_group()
821 mark = list_first_entry(head, struct fsnotify_mark, g_list); in fsnotify_clear_marks_by_group()
822 fsnotify_get_mark(mark); in fsnotify_clear_marks_by_group()
823 fsnotify_detach_mark(mark); in fsnotify_clear_marks_by_group()
825 fsnotify_free_mark(mark); in fsnotify_clear_marks_by_group()
826 fsnotify_put_mark(mark); in fsnotify_clear_marks_by_group()
834 struct fsnotify_mark *mark, *old_mark = NULL; in fsnotify_destroy_marks() local
848 hlist_for_each_entry(mark, &conn->list, obj_list) { in fsnotify_destroy_marks()
849 fsnotify_get_mark(mark); in fsnotify_destroy_marks()
853 old_mark = mark; in fsnotify_destroy_marks()
854 fsnotify_destroy_mark(mark, mark->group); in fsnotify_destroy_marks()
872 void fsnotify_init_mark(struct fsnotify_mark *mark, in fsnotify_init_mark() argument
875 memset(mark, 0, sizeof(*mark)); in fsnotify_init_mark()
876 spin_lock_init(&mark->lock); in fsnotify_init_mark()
877 refcount_set(&mark->refcnt, 1); in fsnotify_init_mark()
879 mark->group = group; in fsnotify_init_mark()
880 WRITE_ONCE(mark->connector, NULL); in fsnotify_init_mark()
890 struct fsnotify_mark *mark, *next; in fsnotify_mark_destroy_workfn() local
900 list_for_each_entry_safe(mark, next, &private_destroy_list, g_list) { in fsnotify_mark_destroy_workfn()
901 list_del_init(&mark->g_list); in fsnotify_mark_destroy_workfn()
902 fsnotify_final_mark_destroy(mark); in fsnotify_mark_destroy_workfn()