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authorDavidlohr Bueso <dave@stgolabs.net>2021-02-26 09:50:29 -0800
committerThomas Gleixner <tglx@linutronix.de>2021-03-11 19:19:17 +0100
commitc2e4bfe0eef313eeb1c4c9d921be7a9d91d5d71a (patch)
tree39864f3e6cf8651e769a205e43d6598accce6970 /kernel/futex.c
parenta3f2428d2b9c9ca70f52818774a2f6e0e30a0f0b (diff)
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 <dbueso@suse.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org> Link: https://lore.kernel.org/r/20210226175029.50335-4-dave@stgolabs.net
Diffstat (limited to 'kernel/futex.c')
-rw-r--r--kernel/futex.c1
1 files changed, 1 insertions, 0 deletions
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:
*