Module Name: src Committed By: snj Date: Thu Dec 21 21:51:37 UTC 2017
Modified Files: src/sys/net [netbsd-8]: bpf.c Log Message: Pull up following revision(s) (requested by ozaki-r in ticket #454): sys/net/bpf.c: revision 1.222 Make softint and callout MP-safe To generate a diff of this commit: cvs rdiff -u -r1.216.6.2 -r1.216.6.3 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:1.216.6.2 src/sys/net/bpf.c:1.216.6.3 --- src/sys/net/bpf.c:1.216.6.2 Thu Dec 21 21:38:23 2017 +++ src/sys/net/bpf.c Thu Dec 21 21:51:37 2017 @@ -1,4 +1,4 @@ -/* $NetBSD: bpf.c,v 1.216.6.2 2017/12/21 21:38:23 snj Exp $ */ +/* $NetBSD: bpf.c,v 1.216.6.3 2017/12/21 21:51:37 snj Exp $ */ /* * Copyright (c) 1990, 1991, 1993 @@ -39,7 +39,7 @@ */ #include <sys/cdefs.h> -__KERNEL_RCSID(0, "$NetBSD: bpf.c,v 1.216.6.2 2017/12/21 21:38:23 snj Exp $"); +__KERNEL_RCSID(0, "$NetBSD: bpf.c,v 1.216.6.3 2017/12/21 21:51:37 snj Exp $"); #if defined(_KERNEL_OPT) #include "opt_bpf.h" @@ -564,9 +564,10 @@ 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); @@ -768,8 +769,10 @@ 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 @@ -1238,7 +1241,9 @@ 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 */