Module Name: src
Committed By: ozaki-r
Date: Fri Dec 15 07:29:11 UTC 2017
Modified Files:
src/sys/net: bpf.c
Log Message:
Make softint and callout MP-safe
To generate a diff of this commit:
cvs rdiff -u -r1.221 -r1.222 src/sys/net/bpf.c
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/sys/net/bpf.c
diff -u src/sys/net/bpf.c:1.221 src/sys/net/bpf.c:1.222
--- src/sys/net/bpf.c:1.221 Tue Dec 12 06:26:57 2017
+++ src/sys/net/bpf.c Fri Dec 15 07:29:11 2017
@@ -1,4 +1,4 @@
-/* $NetBSD: bpf.c,v 1.221 2017/12/12 06:26:57 ozaki-r Exp $ */
+/* $NetBSD: bpf.c,v 1.222 2017/12/15 07:29:11 ozaki-r Exp $ */
/*
* Copyright (c) 1990, 1991, 1993
@@ -39,7 +39,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: bpf.c,v 1.221 2017/12/12 06:26:57 ozaki-r Exp $");
+__KERNEL_RCSID(0, "$NetBSD: bpf.c,v 1.222 2017/12/15 07:29:11 ozaki-r Exp $");
#if defined(_KERNEL_OPT)
#include "opt_bpf.h"
@@ -561,9 +561,10 @@ bpfopen(dev_t dev, int flag, int mode, s
#endif
getnanotime(&d->bd_btime);
d->bd_atime = d->bd_mtime = d->bd_btime;
- callout_init(&d->bd_callout, 0);
+ callout_init(&d->bd_callout, CALLOUT_MPSAFE);
selinit(&d->bd_sel);
- d->bd_sih = softint_establish(SOFTINT_CLOCK, bpf_softintr, d);
+ d->bd_sih = softint_establish(SOFTINT_CLOCK|SOFTINT_MPSAFE,
+ bpf_softintr, d);
d->bd_jitcode = NULL;
d->bd_filter = NULL;
BPF_DLIST_ENTRY_INIT(d);
@@ -765,8 +766,10 @@ bpf_softintr(void *cookie)
struct bpf_d *d;
d = cookie;
+ mutex_enter(d->bd_mtx);
if (d->bd_async)
fownsignal(d->bd_pgid, SIGIO, 0, 0, NULL);
+ mutex_exit(d->bd_mtx);
}
static void
@@ -1231,7 +1234,9 @@ bpf_ioctl(struct file *fp, u_long cmd, v
break;
case FIOASYNC: /* Send signal on receive packets */
+ mutex_enter(d->bd_mtx);
d->bd_async = *(int *)addr;
+ mutex_exit(d->bd_mtx);
break;
case TIOCSPGRP: /* Process or group to send signals to */
