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-rw-r--r--sys/net/bpf_zerocopy.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/sys/net/bpf_zerocopy.c b/sys/net/bpf_zerocopy.c
index a1dd923..3cf4b8d 100644
--- a/sys/net/bpf_zerocopy.c
+++ b/sys/net/bpf_zerocopy.c
@@ -168,10 +168,12 @@ zbuf_sfbuf_get(struct vm_map *map, vm_offset_t uaddr)
VM_PROT_WRITE);
if (pp == NULL)
return (NULL);
+ vm_page_lock(pp);
vm_page_lock_queues();
vm_page_wire(pp);
vm_page_unhold(pp);
vm_page_unlock_queues();
+ vm_page_unlock(pp);
sf = sf_buf_alloc(pp, SFB_NOWAIT);
if (sf == NULL) {
zbuf_page_free(pp);
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