Nuke mbstat. It wasn't used for mbuf statistics since FreeBSD 5.

Now that r253351 moved sendfile() stats to a separate struct, the
last field used in mbstat is m_mcfail, which is updated, but never
read or obtained from userland.

1 files changed, 0 insertions, 21 deletions

diff --git a/sys/kern/kern_mbuf.c b/sys/kern/kern_mbuf.c
index 0b5b5f8..9e85806 100644
--- a/sys/kern/kern_mbuf.c
+++ b/sys/kern/kern_mbuf.c
@@ -102,7 +102,6 @@ int nmbclusters;		/* limits number of mbuf clusters */
 int nmbjumbop;			/* limits number of page size jumbo clusters */
 int nmbjumbo9;			/* limits number of 9k jumbo clusters */
 int nmbjumbo16;			/* limits number of 16k jumbo clusters */
-struct mbstat mbstat;
 
 static quad_t maxmbufmem;	/* overall real memory limit for all mbufs */
 
@@ -262,9 +261,6 @@ SYSCTL_PROC(_kern_ipc, OID_AUTO, nmbufs, CTLTYPE_INT|CTLFLAG_RW,
 &nmbufs, 0, sysctl_nmbufs, "IU",
     "Maximum number of mbufs allowed");
 
-SYSCTL_STRUCT(_kern_ipc, OID_AUTO, mbstat, CTLFLAG_RD, &mbstat, mbstat,
-    "Mbuf general information and statistics");
-
 /*
  * Zones from which we allocate.
  */
@@ -384,23 +380,6 @@ mbuf_init(void *dummy)
 	 */
 	EVENTHANDLER_REGISTER(vm_lowmem, mb_reclaim, NULL,
 	    EVENTHANDLER_PRI_FIRST);
-
-	/*
-	 * [Re]set counters and local statistics knobs.
-	 * XXX Some of these should go and be replaced, but UMA stat
-	 * gathering needs to be revised.
-	 */
-	mbstat.m_mbufs = 0;
-	mbstat.m_mclusts = 0;
-	mbstat.m_drain = 0;
-	mbstat.m_msize = MSIZE;
-	mbstat.m_mclbytes = MCLBYTES;
-	mbstat.m_minclsize = MINCLSIZE;
-	mbstat.m_mlen = MLEN;
-	mbstat.m_mhlen = MHLEN;
-	mbstat.m_numtypes = MT_NTYPES;
-
-	mbstat.m_mcfail = mbstat.m_mpfail = 0;
 }
 SYSINIT(mbuf, SI_SUB_MBUF, SI_ORDER_FIRST, mbuf_init, NULL);