FreeBSD/src 22904b5 (r346460)sys/fs/nfs nfs_commonsubs.c nfs_commonport.c, sys/modules/nfscommon Makefile

MFC: r345992, r346087
Add INET6 support for the upcalls to the nfsuserd daemon.

The kernel code uses UDP to do upcalls to the nfsuserd(8) daemon to get
updates to the username<->uid and groupname<->gid mappings.
A change to AF_LOCAL last year had to be reverted, since it could result
in vnode locking issues on the AF_LOCAL socket.
This patch adds INET6 support and the required #ifdef INET and INET6
to the code.
This patch also reverts the unused AF_LOCAL socket code.
DeltaFile
+40-21sys/fs/nfs/nfs_commonsubs.c
+14-20sys/fs/nfs/nfs_commonport.c
+5-0sys/fs/nfs/nfs.h
+1-1sys/fs/nfs/nfs_var.h
+1-0sys/modules/nfscommon/Makefile
+61-425 files

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