fanotify: Add pids to events

Pass the process identifiers of the triggering processes to fanotify
listeners: this information is useful for event filtering and logging.

Signed-off-by: Andreas Gruenbacher <agruen@suse.de>
Signed-off-by: Eric Paris <eparis@redhat.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/fs/notify/fanotify/fanotify_user.c b/fs/notify/fanotify/fanotify_user.c
index cf9c30009825..66e38fc052b2 100644
--- a/fs/notify/fanotify/fanotify_user.c
+++ b/fs/notify/fanotify/fanotify_user.c
@@ -103,6 +103,7 @@ static ssize_t fill_event_metadata(struct fsnotify_group *group,
         metadata->event_len = FAN_EVENT_METADATA_LEN;
         metadata->vers = FANOTIFY_METADATA_VERSION;
         metadata->mask = fanotify_outgoing_mask(event->mask);
+        metadata->pid = pid_vnr(event->tgid);
         metadata->fd = create_fd(group, event);
 
         return metadata->fd;