An event on directory should never be merged with an event on
non-directory regardless of the event struct type.
This change has no visible effect, because currently, with struct
fanotify_path_event, the relevant events will not be merged because
event path of dir will be different than event path of non-dir.
Signed-off-by: Amir Goldstein <amir73il@xxxxxxxxx>
---
fs/notify/fanotify/fanotify.c | 22 +++++++++++-----------
1 file changed, 11 insertions(+), 11 deletions(-)
diff --git a/fs/notify/fanotify/fanotify.c b/fs/notify/fanotify/fanotify.c
index 110835a9bf99..84c86a45874c 100644
--- a/fs/notify/fanotify/fanotify.c
+++ b/fs/notify/fanotify/fanotify.c
@@ -83,22 +83,22 @@ static bool fanotify_should_merge(struct fsnotify_event *old_fsn,
old->type != new->type || old->pid != new->pid)
return false;
+ /*
+ * We want to merge many dirent events in the same dir (i.e.
+ * creates/unlinks/renames), but we do not want to merge dirent
+ * events referring to subdirs with dirent events referring to
+ * non subdirs, otherwise, user won't be able to tell from a
+ * mask FAN_CREATE|FAN_DELETE|FAN_ONDIR if it describes mkdir+
+ * unlink pair or rmdir+create pair of events.
+ */
+ if ((old->mask & FS_ISDIR) != (new->mask & FS_ISDIR))
+ return false;
+
switch (old->type) {
case FANOTIFY_EVENT_TYPE_PATH:
return fanotify_path_equal(fanotify_event_path(old),
fanotify_event_path(new));
case FANOTIFY_EVENT_TYPE_FID:
- /*
- * We want to merge many dirent events in the same dir (i.e.
- * creates/unlinks/renames), but we do not want to merge dirent
- * events referring to subdirs with dirent events referring to
- * non subdirs, otherwise, user won't be able to tell from a
- * mask FAN_CREATE|FAN_DELETE|FAN_ONDIR if it describes mkdir+
- * unlink pair or rmdir+create pair of events.
- */
- if ((old->mask & FS_ISDIR) != (new->mask & FS_ISDIR))
- return false;
-
return fanotify_fid_event_equal(FANOTIFY_FE(old),
FANOTIFY_FE(new));
case FANOTIFY_EVENT_TYPE_FID_NAME:
--
2.17.1
