Date: Sat, 6 Mar 2010 21:27:26 +0000 (UTC) From: "Bjoern A. Zeeb" <bz@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r204808 - head/sys/net Message-ID: <201003062127.o26LRQ6J042057@svn.freebsd.org>
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Author: bz Date: Sat Mar 6 21:27:26 2010 New Revision: 204808 URL: http://svn.freebsd.org/changeset/base/204808 Log: Introduce a function rn_detachhead() that will free the radix table root nodes. This is only needed (and available) in the virtualization case to free the resources when tearing down a virtual network stack. Sponsored by: ISPsystem Reviewed by: julian, zec MFC after: 5 days Modified: head/sys/net/radix.c head/sys/net/radix.h Modified: head/sys/net/radix.c ============================================================================== --- head/sys/net/radix.c Sat Mar 6 21:24:32 2010 (r204807) +++ head/sys/net/radix.c Sat Mar 6 21:27:26 2010 (r204808) @@ -1161,6 +1161,24 @@ rn_inithead(head, off) return (1); } +#ifdef VIMAGE +int +rn_detachhead(void **head) +{ + struct radix_node_head *rnh; + + KASSERT((head != NULL && *head != NULL), + ("%s: head already freed", __func__)); + rnh = *head; + + /* Free <left,root,right> nodes. */ + Free(rnh); + + *head = NULL; + return (1); +} +#endif + void rn_init(int maxk) { Modified: head/sys/net/radix.h ============================================================================== --- head/sys/net/radix.h Sat Mar 6 21:24:32 2010 (r204807) +++ head/sys/net/radix.h Sat Mar 6 21:27:26 2010 (r204808) @@ -162,6 +162,9 @@ struct radix_node_head { void rn_init(int); int rn_inithead(void **, int); +#ifdef VIMAGE +int rn_detachhead(void **); +#endif int rn_refines(void *, void *); struct radix_node *rn_addmask(void *, int, int),
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