PERFORCE change 137398 for review
Robert Watson
rwatson at FreeBSD.org
Tue Mar 11 14:34:24 UTC 2008
http://perforce.freebsd.org/chv.cgi?CH=137398
Change 137398 by rwatson at rwatson_cinnamon on 2008/03/11 14:33:23
Comment for zrotbuf.
Affected files ...
.. //depot/projects/zcopybpf/src/sys/net/bpf_zerocopy.c#30 edit
Differences ...
==== //depot/projects/zcopybpf/src/sys/net/bpf_zerocopy.c#30 (text+ko) ====
@@ -414,6 +414,11 @@
return (0);
}
+/*
+ * Ioctl to force rotation of the two buffers, if there's any data available.
+ * This can be used by user space to implement time outs when waiting for a
+ * buffer to fill.
+ */
int
bpf_zerocopy_ioctl_rotzbuf(struct thread *td, struct bpf_d *d,
struct bpf_zbuf *bz)
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