From b70997c8c75adc3ab343c47d5ba7d01c9c774d9e Mon Sep 17 00:00:00 2001 From: Mark Johnston Date: Mon, 6 Jul 2026 12:50:37 +0000 Subject: inotify: Unconditionally generate IN_IGNORED events for files/dirs The implementation previously only generated an IN_IGNORED event for a deleted watched file if the watch explicitly requested IN_DELETE_SELF. This is not correct, IN_IGNORED should always be raised when the watched subject is deleted. Adjust the implementation of inotify_log_one() accordingly. This also fixes a problem where a deleted watched file's watch would not be removed if IN_DELETE_SELF was not in the watch's event mask, in which case the unlinked vnode would linger until the inotify descriptor itself is closed. Add a regression test. Reported by: jrtc27 Reviewed by: jrtc27 MFC after: 1 week Differential Revision: https://reviews.freebsd.org/D58050 --- tests/sys/kern/inotify_test.c | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+) (limited to 'tests') diff --git a/tests/sys/kern/inotify_test.c b/tests/sys/kern/inotify_test.c index d3799b12ce20..9d5265e71f95 100644 --- a/tests/sys/kern/inotify_test.c +++ b/tests/sys/kern/inotify_test.c @@ -54,6 +54,8 @@ ev2name(int event) return ("IN_MOVED_TO"); case IN_OPEN: return ("IN_OPEN"); + case IN_IGNORED: + return ("IN_IGNORED"); default: return (NULL); } @@ -832,6 +834,27 @@ ATF_TC_BODY(inotify_event_delete, tc) close_inotify(ifd); } +ATF_TC_WITHOUT_HEAD(inotify_event_delete_ignored); +ATF_TC_BODY(inotify_event_delete_ignored, tc) +{ + char path[PATH_MAX]; + int error, ifd, wd; + + ifd = inotify(IN_NONBLOCK); + + wd = watch_dir(ifd, IN_DELETE, path); + + /* + * IN_IGNORED should be generated when a watched directory is removed, + * even if the watch was not configured to raise IN_DELETE_SELF. + */ + error = rmdir(path); + ATF_REQUIRE(error == 0); + consume_event(ifd, wd, 0, IN_IGNORED, NULL); + + close_inotify(ifd); +} + ATF_TC_WITHOUT_HEAD(inotify_event_move); ATF_TC_BODY(inotify_event_move, tc) { @@ -999,6 +1022,7 @@ ATF_TP_ADD_TCS(tp) ATF_TP_ADD_TC(tp, inotify_event_close_write); ATF_TP_ADD_TC(tp, inotify_event_create); ATF_TP_ADD_TC(tp, inotify_event_delete); + ATF_TP_ADD_TC(tp, inotify_event_delete_ignored); ATF_TP_ADD_TC(tp, inotify_event_move); ATF_TP_ADD_TC(tp, inotify_event_move_dir); ATF_TP_ADD_TC(tp, inotify_event_open); -- cgit v1.3