[PATCH] Documentation/rv: Replace stale website link

[Gabriele Monaco <gmonaco@redhat.com>]

The sched monitor page was linking to Daniel's website which is now
down. The main purpose of the link was to point to a source for the
models from the original author and that can be found also in his
published paper.

Replace the link with a reference to Daniel's "A thread synchronization
model for the PREEMPT_RT Linux kernel" which can be found online and
includes the models definitions as well as the work behind them (not the
original patches but since they're based on a 5.0 kernel and are mostly
included upstream, there's little value in keeping them in the docs).

Signed-off-by: Gabriele Monaco <gmonaco@redhat.com>
---
 Documentation/trace/rv/monitor_sched.rst | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Documentation/trace/rv/monitor_sched.rst b/Documentation/trace/rv/monitor_sched.rst
index 0b96d6e147c6..661171bd7c5e 100644
--- a/Documentation/trace/rv/monitor_sched.rst
+++ b/Documentation/trace/rv/monitor_sched.rst
@@ -365,4 +365,4 @@ constraints when processing the events::
 References
 ----------
 
-[1] - https://bristot.me/linux-task-model
+[1] - Daniel Bristot de Oliveira et al.: A thread synchronization model for the PREEMPT_RT Linux kernel, J. Syst. Archit., 2020.

base-commit: 254f49634ee16a731174d2ae34bc50bd5f45e731
-- 
2.53.0