PERFORCE change 114167 for review
Robert Watson
rwatson at FreeBSD.org
Wed Feb 7 11:18:54 UTC 2007
http://perforce.freebsd.org/chv.cgi?CH=114167
Change 114167 by rwatson at rwatson_cinnamon on 2007/02/07 11:17:32
Annotate an inter-thread race during bpf_setif.
Affected files ...
.. //depot/projects/zcopybpf/src/sys/net/bpf.c#16 edit
Differences ...
==== //depot/projects/zcopybpf/src/sys/net/bpf.c#16 (text+ko) ====
@@ -1407,6 +1407,9 @@
* buffers by the time we get here. If not, return an error.
*
* XXXRW: Could this be better abstracted?
+ *
+ * XXXRW: There are locking issues here with multi-threaded use: what
+ * if two threads try to set the interface at once?
*/
switch (d->bd_bufmode) {
case BPF_BUFMODE_BUFFER:
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