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[src/netbsd-7]: src/sys/net Apply patch, requested by sborrill in ticket #1680:



details:   https://anonhg.NetBSD.org/src/rev/57f49659166b
branches:  netbsd-7
changeset: 800625:57f49659166b
user:      martin <martin%NetBSD.org@localhost>
date:      Sat Feb 23 07:17:37 2019 +0000

description:
Apply patch, requested by sborrill in ticket #1680:

        sys/net/rtsock.c                (apply patch)

Fix locking for sysctl_rtable (fix in HEAD will be different).

diffstat:

 sys/net/rtsock.c |  8 ++++++--
 1 files changed, 6 insertions(+), 2 deletions(-)

diffs (36 lines):

diff -r b287643c807e -r 57f49659166b sys/net/rtsock.c
--- a/sys/net/rtsock.c  Sat Feb 23 07:02:20 2019 +0000
+++ b/sys/net/rtsock.c  Sat Feb 23 07:17:37 2019 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: rtsock.c,v 1.163.2.1 2018/11/28 16:30:06 martin Exp $  */
+/*     $NetBSD: rtsock.c,v 1.163.2.2 2019/02/23 07:17:37 martin Exp $  */
 
 /*
  * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
@@ -61,7 +61,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: rtsock.c,v 1.163.2.1 2018/11/28 16:30:06 martin Exp $");
+__KERNEL_RCSID(0, "$NetBSD: rtsock.c,v 1.163.2.2 2019/02/23 07:17:37 martin Exp $");
 
 #ifdef _KERNEL_OPT
 #include "opt_inet.h"
@@ -1408,6 +1408,8 @@
        w.w_needed = 0 - w.w_given;
        w.w_where = where;
 
+       mutex_enter(softnet_lock);
+       KERNEL_LOCK(1, NULL);
        s = splsoftnet();
        switch (w.w_op) {
 
@@ -1434,6 +1436,8 @@
                break;
        }
        splx(s);
+       KERNEL_UNLOCK_ONE(NULL);
+       mutex_exit(softnet_lock);
 
        /* check to see if we couldn't allocate memory with NOWAIT */
        if (error == ENOBUFS && w.w_tmem == 0 && w.w_tmemneeded)



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