diff options
| -rw-r--r-- | sys/net/bpf.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/sys/net/bpf.c b/sys/net/bpf.c index 93929da..c73fbd3 100644 --- a/sys/net/bpf.c +++ b/sys/net/bpf.c @@ -600,7 +600,7 @@ bpf_attachd(struct bpf_d *d, struct bpf_if *bp) * Save sysctl value to protect from sysctl change * between reads */ - op_w = V_bpf_optimize_writers; + op_w = V_bpf_optimize_writers || d->bd_writer; if (d->bd_bif != NULL) bpf_detachd_locked(d); @@ -802,6 +802,8 @@ bpfopen(struct cdev *dev, int flags, int fmt, struct thread *td) * particular buffer method. */ bpf_buffer_init(d); + if ((flags & FREAD) == 0) + d->bd_writer = 2; d->bd_hbuf_in_use = 0; d->bd_bufmode = BPF_BUFMODE_BUFFER; d->bd_sig = SIGIO; |
