docs: highres: fix broken urls
Some urls is invalid. I find alternative urls.
Signed-off-by: stephen lu <lumotuwe@gmail.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
diff --git a/Documentation/timers/highres.txt b/Documentation/timers/highres.txt
index e878997..9d88f67 100644
--- a/Documentation/timers/highres.txt
+++ b/Documentation/timers/highres.txt
@@ -4,10 +4,10 @@
Further information can be found in the paper of the OLS 2006 talk "hrtimers
and beyond". The paper is part of the OLS 2006 Proceedings Volume 1, which can
be found on the OLS website:
-http://www.linuxsymposium.org/2006/linuxsymposium_procv1.pdf
+https://www.kernel.org/doc/ols/2006/ols2006v1-pages-333-346.pdf
The slides to this talk are available from:
-http://tglx.de/projects/hrtimers/ols2006-hrtimers.pdf
+http://www.cs.columbia.edu/~nahum/w6998/papers/ols2006-hrtimers-slides.pdf
The slides contain five figures (pages 2, 15, 18, 20, 22), which illustrate the
changes in the time(r) related Linux subsystems. Figure #1 (p. 2) shows the