From c2e4bfe0eef313eeb1c4c9d921be7a9d91d5d71a Mon Sep 17 00:00:00 2001 From: Davidlohr Bueso Date: Fri, 26 Feb 2021 09:50:29 -0800 Subject: [PATCH] kernel/futex: Explicitly document pi_lock for pi_state owner fixup This seems to belong in the serialization and lifetime rules section. pi_state_update_owner() will take the pi_mutex's owner's pi_lock to do whatever fixup, successful or not. Signed-off-by: Davidlohr Bueso Signed-off-by: Thomas Gleixner Acked-by: Peter Zijlstra (Intel) Link: https://lore.kernel.org/r/20210226175029.50335-4-dave@stgolabs.net --- kernel/futex.c | 1 + 1 file changed, 1 insertion(+) diff --git a/kernel/futex.c b/kernel/futex.c index dcd6132485e1..475055715371 100644 --- a/kernel/futex.c +++ b/kernel/futex.c @@ -981,6 +981,7 @@ static inline void exit_pi_state_list(struct task_struct *curr) { } * p->pi_lock: * * p->pi_state_list -> pi_state->list, relation + * pi_mutex->owner -> pi_state->owner, relation * * pi_state->refcount: * -- 2.34.1