====== Planning spares for FreeBSD-9 ======

To keep KPI/KBI stability for %%FreeBSD%%-9 please add spares you will need to this page.

Please always add your login and a description of the proposed changes under the subsystem section, so someone can get back to you in case of questions.

In case you feel eligible for a subsystem please add your name to the heading stating you will poll people and do the commit adding the spares until Saturday July 16th.

**Spares are getting committed.  You are too late. If you still need spares you may contact Release Engineering.**

===== Networking (bz) =====

  * bz -- per socket timer support, a mix of what is supported by Linux, %%NetBSD%%, Apple and used by various projects like openldap and cyrus-imap.
  * luigi - pointer to [[http://info.iet.unipi.it/~luigi/netmap/|netmap]]-specific data for interface that will support it. See [[http://info.iet.unipi.it/~luigi/netmap/]] for more info.
  * cnicutar -- [[CatalinNicutar/TCPUTO|TCP User Timeout Option]]
  * xxx - route caching.

==== struct ifnet, sys/net/if_var.h ====

<code>
+	void    *if_netmap;             /* pointer to netmap(4) data, if supported */
</code>

==== struct radix_node_head, sys/net/radix.h ====

<code>
+       u_int   rnh_gen;                /* generation counter */
</code>

==== struct inpcb, sys/netinet/in_pcb.h ====

<code>
+       struct in_ifaddr *inp_ifaddr;   /* (i) reference to the local ifaddr */
+       u_int   inp_rt_gen;             /* generation count of routing entry */
</code>

==== struct tcpcb, sys/netinet/tcp_var.h ====

<code>
+       u_int   t_keepinit;             /* time to establish connection */
+       u_int   t_keepidle;             /* time before keepalive probes begin */
+       u_int   t_keepintvl;            /* interval between keepalives */
+       u_int   t_keepcnt;              /* number of keepalives before close */

+       uint32_t _pad[2];               /* UTO "spares" */
+       uint32_t snd_uto;               /* sent timeout */
+       uint32_t rcv_uto;               /* received suggestion from peer */
+       int t_suto;                     /* UTO starting time (ticks) */
</code>

==== struct tcpopt, sys/netinet/tcp_var.h ====

<code>
+       u_int32_t       to_uto;         /* sent user timeout */
</code>

==== struct syncache, sys/netinet/tcp_syncache.h ====

<code>
+       u_int32_t       sc_snd_uto;     /* user timeout to send */
+       u_int32_t       sc_rcv_uto;     /* user timeout received */
</code>

===== Storage (pjd) =====

  * pjd -- support for direct I/O and support for provider's property changes (like mediasize changes)

==== struct g_class, sys/geom/geom.h ====

<code>
+	u_int	spare0;		/* reserved for class flags */
+	void	*spare1;	/* reserved for default value for new geom method */
</code>

==== struct g_geom, sys/geom/geom.h ====

<code>
+	void	*spare0;	/* reserved for new geom method */
</code>