Date: Wed, 8 Jan 2003 23:45:32 +0100 From: Vincent Jardin <vjardin@wanadoo.fr> To: Garrett Wollman <wollman@lcs.mit.edu> Cc: net@FreeBSD.ORG Subject: Re: rt_refcnt and rtentry protection ?? Message-ID: <3E075B32006E7C25@mel-rta8.wanadoo.fr> (added by postmaster@wanadoo.fr) In-Reply-To: <200301082206.h08M6eHm008984@khavrinen.lcs.mit.edu> References: <0H8E00ASUXB1HW@mta5.snfc21.pbi.net> <3E075B1B006D4334@mel-rta7.wanadoo.fr> <200301082206.h08M6eHm008984@khavrinen.lcs.mit.edu>
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> > So long as the route is marked RTF_UP, it cannot be deleted. In a > single-threaded kernel, it is not possible for this code to be > preempted, so there is no means by which the route flags could be > changed. (RTF_UP is unset when and only when the route is deleted > from the radix tree.) I agree. However, how would it work on a multi-threaded FreeBSD 5 kernel ? Regards, Vincent To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-net" in the body of the message
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