proc.5: Add reference to ptrace(2) for /proc/sys/kernel/yama/ptrace_scope

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>

diff --git a/man5/proc.5 b/man5/proc.5
index aa77a4774d52aca44f751034727c1617c1c20d30..370c20c6cd09d6f7f40b6a02162c1c6f32c40c56 100644 (file)
--- a/man5/proc.5
+++ b/man5/proc.5
@@ -4301,6 +4301,10 @@ of the available RAM pages,
 .I threads-max
 is reduced accordingly.
 .TP
+.IR /proc/sys/kernel/yama/ptrace_scope " (since Linux 3.5)"
+See
+.BR ptrace (2).
+.TP
 .IR /proc/sys/kernel/zero-paged " (PowerPC only) "
 This file
 contains a flag.