Hans Petter Selasky wrote:
On Friday 05 August 2005 19:29, John Baldwin wrote:
Yes, you are right, but the problem is, that for most callback systems in the kernel, there is no mechanism that will pre-lock some custom mutex before calling the callback.
Not generally applicable to this case but for example the netgraph callout wrappers handlle netgraph node locking so that teh called function can assume the node it is working on has been locked. It's not applicable because netgraph locking is "different" to locking elsewhere in the kernel due to the nature of netgraph. But havinng a specific callout wrapper for a subsystem does give the ability to do such things. _______________________________________________ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to "[EMAIL PROTECTED]"
