Messages in this thread Patch in this message | ![/](/images/icornerl.gif) | | From | Davidlohr Bueso <> | Subject | [PATCH 4/6] fs/epoll: robustify ep->mtx held checks | Date | Wed, 7 Nov 2018 21:10:04 -0800 |
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Insted of just commenting how important it is, lets make it more robust and add a lockdep_assert_held() call.
Signed-off-by: Davidlohr Bueso <dbueso@suse.de> --- fs/eventpoll.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/fs/eventpoll.c b/fs/eventpoll.c index 347da3f4f5d3..6a0c2591e57e 100644 --- a/fs/eventpoll.c +++ b/fs/eventpoll.c @@ -1637,6 +1637,8 @@ static __poll_t ep_send_events_proc(struct eventpoll *ep, struct list_head *head * Items cannot vanish during the loop because ep_scan_ready_list() is * holding "mtx" during this call. */ + lockdep_assert_held(&ep->mtx); + list_for_each_entry_safe(epi, tmp, head, rdllink) { if (esed->res >= esed->maxevents) break; -- 2.16.4
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