This chunk has been #ifdef since r1.1 in 1995. I'd like to revisit
SB_LOCK so this is in my way. Ok to remove it?
Index: kern/uipc_usrreq.c
===================================================================
RCS file: /cvs/src/sys/kern/uipc_usrreq.c,v
retrieving revision 1.120
diff -u -p -r1.120 uipc_usrreq.c
--- kern/uipc_usrreq.c 2 Nov 2017 14:01:18 -0000 1.120
+++ kern/uipc_usrreq.c 11 Dec 2017 07:57:48 -0000
@@ -963,22 +963,6 @@ unp_gc(void *arg __unused)
unp->unp_flags |= UNP_GCMARK;
so = unp->unp_socket;
-#ifdef notdef
- if (so->so_rcv.sb_flags & SB_LOCK) {
- /*
- * This is problematical; it's not clear
- * we need to wait for the sockbuf to be
- * unlocked (on a uniprocessor, at least),
- * and it's also not clear what to do
- * if sbwait returns an error due to receipt
- * of a signal. If sbwait does return
- * an error, we'll go into an infinite
- * loop. Delete all of this for now.
- */
- (void) sbwait(&so->so_rcv);
- goto restart;
- }
-#endif
unp_scan(so->so_rcv.sb_mb, unp_mark);
}
} while (unp_defer);
