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| /freebsd-11-stable/sys/net/ | ||
| H A D | if_var.h | diff 191423 Thu Apr 23 11:25:00 MDT 2009 rwatson Add ifunit_ref(), a version of ifunit(), that returns not just an interface pointer, but also a reference to it. Modify ifioctl() to use ifunit_ref(), holding the reference until all ioctls, etc, have completed. This closes a class of reader-writer races in which interfaces could be removed during long-running ioctls, leading to crashes. Many other consumers of ifunit() should now use ifunit_ref() to avoid similar races. MFC after: 3 weeks |
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