Module Name: src
Committed By: riastradh
Date: Sat Mar 19 11:54:53 UTC 2022
Modified Files:
src/share/man/man9: rnd.9
Log Message:
rnd(9): Document the serial use of rndsource callbacks.
This simplifies the rndsource API -- no need to lock, unless you're
also coordinating with other driver logic like concurrent
opencrypto(4) requests that share device requests.
To generate a diff of this commit:
cvs rdiff -u -r1.29 -r1.30 src/share/man/man9/rnd.9
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/share/man/man9/rnd.9
diff -u src/share/man/man9/rnd.9:1.29 src/share/man/man9/rnd.9:1.30
--- src/share/man/man9/rnd.9:1.29 Mon May 4 15:13:45 2020
+++ src/share/man/man9/rnd.9 Sat Mar 19 11:54:53 2022
@@ -1,4 +1,4 @@
-.\" $NetBSD: rnd.9,v 1.29 2020/05/04 15:13:45 wiz Exp $
+.\" $NetBSD: rnd.9,v 1.30 2022/03/19 11:54:53 riastradh Exp $
.\"
.\" Copyright (c) 1997 The NetBSD Foundation, Inc.
.\" All rights reserved.
@@ -165,6 +165,12 @@ not
or
.Fn rnd_add_uint32 .
.El
+.Pp
+.Nm
+issues calls to each source's
+.Fa callback
+in serial \(em it never issues two calls to the same source's callback
+at the same time in two differen threads or on two different CPUs.
.It Fn rnd_attach_source "rnd_source" "devname" "type" "flags"
Makes
.Fa rnd_source
