Remove M_TRYWAIT/M_WAITOK/M_WAIT. Callers should use 0.

Merge M_NOWAIT/M_DONTWAIT into a single flag M_NOWAIT.

25 files changed, 107 insertions, 107 deletions

diff --git a/sys/netinet6/ah_core.c b/sys/netinet6/ah_core.c
index cbb6206..4b7da31 100644
--- a/sys/netinet6/ah_core.c
+++ b/sys/netinet6/ah_core.c
@@ -1244,9 +1244,9 @@ again:
 				error = EMSGSIZE;
 				goto fail;
 			}
-			MGET(n, M_DONTWAIT, MT_DATA);
+			MGET(n, M_NOWAIT, MT_DATA);
 			if (n && hlen > MLEN) {
-				MCLGET(n, M_DONTWAIT);
+				MCLGET(n, M_NOWAIT);
 				if ((n->m_flags & M_EXT) == 0) {
 					m_free(n);
 					n = NULL;
@@ -1359,9 +1359,9 @@ again:
 				error = EMSGSIZE;
 				goto fail;
 			}
-			MGET(n, M_DONTWAIT, MT_DATA);
+			MGET(n, M_NOWAIT, MT_DATA);
 			if (n && totlen > MLEN) {
-				MCLGET(n, M_DONTWAIT);
+				MCLGET(n, M_NOWAIT);
 				if ((n->m_flags & M_EXT) == 0) {
 					m_free(n);
 					n = NULL;
@@ -1510,9 +1510,9 @@ ah6_calccksum(m, ahdat, len, algo, sav)
 				error = EMSGSIZE;
 				goto fail;
 			}
-			MGET(n, M_DONTWAIT, MT_DATA);
+			MGET(n, M_NOWAIT, MT_DATA);
 			if (n && newoff - off > MLEN) {
-				MCLGET(n, M_DONTWAIT);
+				MCLGET(n, M_NOWAIT);
 				if ((n->m_flags & M_EXT) == 0) {
 					m_free(n);
 					n = NULL;
@@ -1545,9 +1545,9 @@ ah6_calccksum(m, ahdat, len, algo, sav)
 			error = EMSGSIZE;
 			goto fail;
 		}
-		MGET(n, M_DONTWAIT, MT_DATA);
+		MGET(n, M_NOWAIT, MT_DATA);
 		if (n && newoff - off > MLEN) {
-			MCLGET(n, M_DONTWAIT);
+			MCLGET(n, M_NOWAIT);
 			if ((n->m_flags & M_EXT) == 0) {
 				m_free(n);
 				n = NULL;
diff --git a/sys/netinet6/ah_input.c b/sys/netinet6/ah_input.c
index 0afdfed..94cd673 100644
--- a/sys/netinet6/ah_input.c
+++ b/sys/netinet6/ah_input.c
@@ -494,7 +494,7 @@ ah4_input(m, off)
 			 */
 			struct mbuf *n;
 
-			n = m_split(m, off, M_DONTWAIT);
+			n = m_split(m, off, M_NOWAIT);
 			if (n == NULL) {
 				/* m is retained by m_split */
 				goto fail;
@@ -901,7 +901,7 @@ ah6_input(mp, offp, proto)
 			 */
 			struct mbuf *n;
 
-			n = m_split(m, off, M_DONTWAIT);
+			n = m_split(m, off, M_NOWAIT);
 			if (n == NULL) {
 				/* m is retained by m_split */
 				goto fail;
diff --git a/sys/netinet6/ah_output.c b/sys/netinet6/ah_output.c
index e850752..00104ce 100644
--- a/sys/netinet6/ah_output.c
+++ b/sys/netinet6/ah_output.c
@@ -211,7 +211,7 @@ ah4_output(m, isr)
 		panic("ah4_output: assumption failed (first mbuf length)");
 	if (M_LEADINGSPACE(m->m_next) < ahlen) {
 		struct mbuf *n;
-		MGET(n, M_DONTWAIT, MT_DATA);
+		MGET(n, M_NOWAIT, MT_DATA);
 		if (!n) {
 			ipseclog((LOG_DEBUG, "ENOBUFS in ah4_output %d\n",
 			    __LINE__));
@@ -390,13 +390,13 @@ ah6_output(m, nexthdrp, md, isr)
 		return EINVAL;
 	}
 
-	MGET(mah, M_DONTWAIT, MT_DATA);
+	MGET(mah, M_NOWAIT, MT_DATA);
 	if (!mah) {
 		m_freem(m);
 		return ENOBUFS;
 	}
 	if (ahlen > MLEN) {
-		MCLGET(mah, M_DONTWAIT);
+		MCLGET(mah, M_NOWAIT);
 		if ((mah->m_flags & M_EXT) == 0) {
 			m_free(mah);
 			m_freem(m);
diff --git a/sys/netinet6/esp_core.c b/sys/netinet6/esp_core.c
index db09b94..fe7d27b 100644
--- a/sys/netinet6/esp_core.c
+++ b/sys/netinet6/esp_core.c
@@ -760,10 +760,10 @@ esp_cbc_decrypt(m, off, sav, algo, ivlen)
 		if (!d || dn + blocklen > d->m_len) {
 			if (d)
 				dp = d;
-			MGET(d, M_DONTWAIT, MT_DATA);
+			MGET(d, M_NOWAIT, MT_DATA);
 			i = m->m_pkthdr.len - (soff + sn);
 			if (d && i > MLEN) {
-				MCLGET(d, M_DONTWAIT);
+				MCLGET(d, M_NOWAIT);
 				if ((d->m_flags & M_EXT) == 0) {
 					m_free(d);
 					d = NULL;
@@ -970,10 +970,10 @@ esp_cbc_encrypt(m, off, plen, sav, algo, ivlen)
 		if (!d || dn + blocklen > d->m_len) {
 			if (d)
 				dp = d;
-			MGET(d, M_DONTWAIT, MT_DATA);
+			MGET(d, M_NOWAIT, MT_DATA);
 			i = m->m_pkthdr.len - (soff + sn);
 			if (d && i > MLEN) {
-				MCLGET(d, M_DONTWAIT);
+				MCLGET(d, M_NOWAIT);
 				if ((d->m_flags & M_EXT) == 0) {
 					m_free(d);
 					d = NULL;
diff --git a/sys/netinet6/esp_input.c b/sys/netinet6/esp_input.c
index d8de60c..1584aa4 100644
--- a/sys/netinet6/esp_input.c
+++ b/sys/netinet6/esp_input.c
@@ -788,7 +788,7 @@ noreplaycheck:
 			 */
 			struct mbuf *n;
 
-			n = m_split(m, off, M_DONTWAIT);
+			n = m_split(m, off, M_NOWAIT);
 			if (n == NULL) {
 				/* m is retained by m_split */
 				goto bad;
@@ -810,12 +810,12 @@ noreplaycheck:
 			struct mbuf *n = NULL;
 			int maxlen;
 
-			MGETHDR(n, M_DONTWAIT, MT_HEADER);
+			MGETHDR(n, M_NOWAIT, MT_HEADER);
 			maxlen = MHLEN;
 			if (n)
 				M_MOVE_PKTHDR(n, m);
 			if (n && n->m_pkthdr.len > maxlen) {
-				MCLGET(n, M_DONTWAIT);
+				MCLGET(n, M_NOWAIT);
 				maxlen = MCLBYTES;
 				if ((n->m_flags & M_EXT) == 0) {
 					m_free(n);
diff --git a/sys/netinet6/esp_output.c b/sys/netinet6/esp_output.c
index 3e89c5d..5a4932a 100644
--- a/sys/netinet6/esp_output.c
+++ b/sys/netinet6/esp_output.c
@@ -340,7 +340,7 @@ esp_output(m, nexthdrp, md, isr, af)
 	 * after:  IP ... ESP IV payload
 	 */
 	if (M_LEADINGSPACE(md) < esphlen || (md->m_flags & M_EXT) != 0) {
-		MGET(n, M_DONTWAIT, MT_DATA);
+		MGET(n, M_NOWAIT, MT_DATA);
 		if (!n) {
 			m_freem(m);
 			error = ENOBUFS;
@@ -495,7 +495,7 @@ esp_output(m, nexthdrp, md, isr, af)
 	} else {
 		struct mbuf *nn;
 
-		MGET(nn, M_DONTWAIT, MT_DATA);
+		MGET(nn, M_NOWAIT, MT_DATA);
 		if (!nn) {
 			ipseclog((LOG_DEBUG, "esp%d_output: can't alloc mbuf",
 			    afnumber));
@@ -624,7 +624,7 @@ esp_output(m, nexthdrp, md, isr, af)
 	} else {
 		struct mbuf *nn;
 
-		MGET(nn, M_DONTWAIT, MT_DATA);
+		MGET(nn, M_NOWAIT, MT_DATA);
 		if (!nn) {
 			ipseclog((LOG_DEBUG, "can't alloc mbuf in esp%d_output",
 			    afnumber));
diff --git a/sys/netinet6/frag6.c b/sys/netinet6/frag6.c
index 515a9fb..c57709a 100644
--- a/sys/netinet6/frag6.c
+++ b/sys/netinet6/frag6.c
@@ -233,7 +233,7 @@ frag6_input(mp, offp, proto)
 			goto dropfrag;
 		frag6_nfragpackets++;
 		q6 = (struct ip6q *)malloc(sizeof(struct ip6q), M_FTABLE,
-			M_DONTWAIT);
+			M_NOWAIT);
 		if (q6 == NULL)
 			goto dropfrag;
 		bzero(q6, sizeof(*q6));
@@ -325,7 +325,7 @@ frag6_input(mp, offp, proto)
 	}
 
 	ip6af = (struct ip6asfrag *)malloc(sizeof(struct ip6asfrag), M_FTABLE,
-	    M_DONTWAIT);
+	    M_NOWAIT);
 	if (ip6af == NULL)
 		goto dropfrag;
 	bzero(ip6af, sizeof(*ip6af));
@@ -489,7 +489,7 @@ insert:
 		m->m_len -= sizeof(struct ip6_frag);
 	} else {
 		/* this comes with no copy if the boundary is on cluster */
-		if ((t = m_split(m, offset, M_DONTWAIT)) == NULL) {
+		if ((t = m_split(m, offset, M_NOWAIT)) == NULL) {
 			frag6_remque(q6);
 			free(q6, M_FTABLE);
 			frag6_nfragpackets--;
diff --git a/sys/netinet6/icmp6.c b/sys/netinet6/icmp6.c
index b2781a4..6a5884e 100644
--- a/sys/netinet6/icmp6.c
+++ b/sys/netinet6/icmp6.c
@@ -346,7 +346,7 @@ icmp6_error(m, type, code, param)
 		m_adj(m, ICMPV6_PLD_MAXLEN - m->m_pkthdr.len);
 
 	preplen = sizeof(struct ip6_hdr) + sizeof(struct icmp6_hdr);
-	M_PREPEND(m, preplen, M_DONTWAIT);
+	M_PREPEND(m, preplen, M_NOWAIT);
 	if (m && m->m_len < preplen)
 		m = m_pullup(m, preplen);
 	if (m == NULL) {
@@ -562,9 +562,9 @@ icmp6_input(mp, offp, proto)
 				m_freem(n0);
 				break;
 			}
-			MGETHDR(n, M_DONTWAIT, n0->m_type);
+			MGETHDR(n, M_NOWAIT, n0->m_type);
 			if (n && maxlen >= MHLEN) {
-				MCLGET(n, M_DONTWAIT);
+				MCLGET(n, M_NOWAIT);
 				if ((n->m_flags & M_EXT) == 0) {
 					m_free(n);
 					n = NULL;
@@ -623,7 +623,7 @@ icmp6_input(mp, offp, proto)
 			icmp6_ifstat_inc(m->m_pkthdr.rcvif, ifs6_in_mldquery);
 		else
 			icmp6_ifstat_inc(m->m_pkthdr.rcvif, ifs6_in_mldreport);
-		if ((n = m_copym(m, 0, M_COPYALL, M_DONTWAIT)) == NULL) {
+		if ((n = m_copym(m, 0, M_COPYALL, M_NOWAIT)) == NULL) {
 			/* give up local */
 			mld6_input(m, off);
 			m = NULL;
@@ -684,15 +684,15 @@ icmp6_input(mp, offp, proto)
 				/* Give up remote */
 				break;
 			}
-			MGETHDR(n, M_DONTWAIT, m->m_type);
+			MGETHDR(n, M_NOWAIT, m->m_type);
 			if (n && maxlen > MHLEN) {
-				MCLGET(n, M_DONTWAIT);
+				MCLGET(n, M_NOWAIT);
 				if ((n->m_flags & M_EXT) == 0) {
 					m_free(n);
 					n = NULL;
 				}
 			}
-			if (!m_dup_pkthdr(n, m, M_DONTWAIT)) {
+			if (!m_dup_pkthdr(n, m, M_NOWAIT)) {
 				/*
 				 * Previous code did a blind M_COPY_PKTHDR
 				 * and said "just for rcvif".  If true, then
@@ -748,7 +748,7 @@ icmp6_input(mp, offp, proto)
 			goto badcode;
 		if (icmp6len < sizeof(struct nd_router_solicit))
 			goto badlen;
-		if ((n = m_copym(m, 0, M_COPYALL, M_DONTWAIT)) == NULL) {
+		if ((n = m_copym(m, 0, M_COPYALL, M_NOWAIT)) == NULL) {
 			/* give up local */
 			nd6_rs_input(m, off, icmp6len);
 			m = NULL;
@@ -764,7 +764,7 @@ icmp6_input(mp, offp, proto)
 			goto badcode;
 		if (icmp6len < sizeof(struct nd_router_advert))
 			goto badlen;
-		if ((n = m_copym(m, 0, M_COPYALL, M_DONTWAIT)) == NULL) {
+		if ((n = m_copym(m, 0, M_COPYALL, M_NOWAIT)) == NULL) {
 			/* give up local */
 			nd6_ra_input(m, off, icmp6len);
 			m = NULL;
@@ -780,7 +780,7 @@ icmp6_input(mp, offp, proto)
 			goto badcode;
 		if (icmp6len < sizeof(struct nd_neighbor_solicit))
 			goto badlen;
-		if ((n = m_copym(m, 0, M_COPYALL, M_DONTWAIT)) == NULL) {
+		if ((n = m_copym(m, 0, M_COPYALL, M_NOWAIT)) == NULL) {
 			/* give up local */
 			nd6_ns_input(m, off, icmp6len);
 			m = NULL;
@@ -796,7 +796,7 @@ icmp6_input(mp, offp, proto)
 			goto badcode;
 		if (icmp6len < sizeof(struct nd_neighbor_advert))
 			goto badlen;
-		if ((n = m_copym(m, 0, M_COPYALL, M_DONTWAIT)) == NULL) {
+		if ((n = m_copym(m, 0, M_COPYALL, M_NOWAIT)) == NULL) {
 			/* give up local */
 			nd6_na_input(m, off, icmp6len);
 			m = NULL;
@@ -812,7 +812,7 @@ icmp6_input(mp, offp, proto)
 			goto badcode;
 		if (icmp6len < sizeof(struct nd_redirect))
 			goto badlen;
-		if ((n = m_copym(m, 0, M_COPYALL, M_DONTWAIT)) == NULL) {
+		if ((n = m_copym(m, 0, M_COPYALL, M_NOWAIT)) == NULL) {
 			/* give up local */
 			icmp6_redirect_input(m, off);
 			m = NULL;
@@ -1394,7 +1394,7 @@ ni6_input(m, off)
 	}
 
 	/* allocate an mbuf to reply. */
-	MGETHDR(n, M_DONTWAIT, m->m_type);
+	MGETHDR(n, M_NOWAIT, m->m_type);
 	if (n == NULL) {
 		m_freem(m);
 		return(NULL);
@@ -1408,7 +1408,7 @@ ni6_input(m, off)
 			 */
 			goto bad;
 		}
-		MCLGET(n, M_DONTWAIT);
+		MCLGET(n, M_NOWAIT);
 		if ((n->m_flags & M_EXT) == 0) {
 			goto bad;
 		}
@@ -1507,9 +1507,9 @@ ni6_nametodns(name, namelen, old)
 		len = MCLBYTES;
 
 	/* because MAXHOSTNAMELEN is usually 256, we use cluster mbuf */
-	MGET(m, M_DONTWAIT, MT_DATA);
+	MGET(m, M_NOWAIT, MT_DATA);
 	if (m && len > MLEN) {
-		MCLGET(m, M_DONTWAIT);
+		MCLGET(m, M_NOWAIT);
 		if ((m->m_flags & M_EXT) == 0)
 			goto fail;
 	}
@@ -2477,9 +2477,9 @@ icmp6_redirect_output(m0, rt)
 #if IPV6_MMTU >= MCLBYTES
 # error assumption failed about IPV6_MMTU and MCLBYTES
 #endif
-	MGETHDR(m, M_DONTWAIT, MT_HEADER);
+	MGETHDR(m, M_NOWAIT, MT_HEADER);
 	if (m && IPV6_MMTU >= MHLEN)
-		MCLGET(m, M_DONTWAIT);
+		MCLGET(m, M_NOWAIT);
 	if (!m)
 		goto fail;
 	m->m_pkthdr.rcvif = NULL;
diff --git a/sys/netinet6/in6.c b/sys/netinet6/in6.c
index 945ab65..8b43845 100644
--- a/sys/netinet6/in6.c
+++ b/sys/netinet6/in6.c
@@ -1676,7 +1676,7 @@ in6_addmulti(maddr6, ifp, errorp)
 	if (ifma->ifma_protospec != 0)
 		return ifma->ifma_protospec;
 
-	/* XXX - if_addmulti uses M_WAITOK.  Can this really be called
+	/* XXX - if_addmulti does not use M_NOWAIT.  Can this really be called
 	   at interrupt time?  If so, need to fix if_addmulti. XXX */
 	in6m = (struct in6_multi *)malloc(sizeof(*in6m), M_IPMADDR, M_NOWAIT);
 	if (in6m == NULL) {
@@ -2447,7 +2447,7 @@ in6_sin_2_v4mapsin6_in_sock(struct sockaddr **nam)
 	struct sockaddr_in6 *sin6_p;
 
 	MALLOC(sin6_p, struct sockaddr_in6 *, sizeof *sin6_p, M_SONAME,
-	       M_WAITOK);
+	       0);
 	sin_p = (struct sockaddr_in *)*nam;
 	in6_sin_2_v4mapsin6(sin_p, sin6_p);
 	FREE(*nam, M_SONAME);
diff --git a/sys/netinet6/in6_gif.c b/sys/netinet6/in6_gif.c
index b560075..7376d85 100644
--- a/sys/netinet6/in6_gif.c
+++ b/sys/netinet6/in6_gif.c
@@ -145,7 +145,7 @@ in6_gif_output(ifp, family, m)
 	}
 	
 	/* prepend new IP header */
-	M_PREPEND(m, sizeof(struct ip6_hdr), M_DONTWAIT);
+	M_PREPEND(m, sizeof(struct ip6_hdr), M_NOWAIT);
 	if (m && m->m_len < sizeof(struct ip6_hdr))
 		m = m_pullup(m, sizeof(struct ip6_hdr));
 	if (m == NULL) {
diff --git a/sys/netinet6/in6_ifattach.c b/sys/netinet6/in6_ifattach.c
index 5abcca1..e92fa79 100644
--- a/sys/netinet6/in6_ifattach.c
+++ b/sys/netinet6/in6_ifattach.c
@@ -774,7 +774,7 @@ in6_ifattach(ifp, altifp)
 
 		/* grow in6_ifstat */
 		n = if_indexlim * sizeof(struct in6_ifstat *);
-		q = (caddr_t)malloc(n, M_IFADDR, M_WAITOK);
+		q = (caddr_t)malloc(n, M_IFADDR, 0);
 		bzero(q, n);
 		if (in6_ifstat) {
 			bcopy((caddr_t)in6_ifstat, q,
@@ -786,7 +786,7 @@ in6_ifattach(ifp, altifp)
 
 		/* grow icmp6_ifstat */
 		n = if_indexlim * sizeof(struct icmp6_ifstat *);
-		q = (caddr_t)malloc(n, M_IFADDR, M_WAITOK);
+		q = (caddr_t)malloc(n, M_IFADDR, 0);
 		bzero(q, n);
 		if (icmp6_ifstat) {
 			bcopy((caddr_t)icmp6_ifstat, q,
@@ -864,12 +864,12 @@ statinit:
 
 	if (in6_ifstat[ifp->if_index] == NULL) {
 		in6_ifstat[ifp->if_index] = (struct in6_ifstat *)
-			malloc(sizeof(struct in6_ifstat), M_IFADDR, M_WAITOK);
+			malloc(sizeof(struct in6_ifstat), M_IFADDR, 0);
 		bzero(in6_ifstat[ifp->if_index], sizeof(struct in6_ifstat));
 	}
 	if (icmp6_ifstat[ifp->if_index] == NULL) {
 		icmp6_ifstat[ifp->if_index] = (struct icmp6_ifstat *)
-			malloc(sizeof(struct icmp6_ifstat), M_IFADDR, M_WAITOK);
+			malloc(sizeof(struct icmp6_ifstat), M_IFADDR, 0);
 		bzero(icmp6_ifstat[ifp->if_index], sizeof(struct icmp6_ifstat));
 	}
 
diff --git a/sys/netinet6/in6_pcb.c b/sys/netinet6/in6_pcb.c
index 963cd9a..4a5de69 100644
--- a/sys/netinet6/in6_pcb.c
+++ b/sys/netinet6/in6_pcb.c
@@ -640,7 +640,7 @@ in6_sockaddr(port, addr_p)
 {
 	struct sockaddr_in6 *sin6;
 
-	MALLOC(sin6, struct sockaddr_in6 *, sizeof *sin6, M_SONAME, M_WAITOK);
+	MALLOC(sin6, struct sockaddr_in6 *, sizeof *sin6, M_SONAME, 0);
 	bzero(sin6, sizeof *sin6);
 	sin6->sin6_family = AF_INET6;
 	sin6->sin6_len = sizeof(*sin6);
@@ -671,7 +671,7 @@ in6_v4mapsin6_sockaddr(port, addr_p)
 	sin.sin_addr = *addr_p;
 
 	MALLOC(sin6_p, struct sockaddr_in6 *, sizeof *sin6_p, M_SONAME,
-		M_WAITOK);
+		0);
 	in6_sin_2_v4mapsin6(&sin, sin6_p);
 
 	return (struct sockaddr *)sin6_p;
diff --git a/sys/netinet6/ip6_fw.c b/sys/netinet6/ip6_fw.c
index 0ef2c52..b1eb2ff 100644
--- a/sys/netinet6/ip6_fw.c
+++ b/sys/netinet6/ip6_fw.c
@@ -1109,11 +1109,11 @@ ip6_fw_ctl(int stage, struct mbuf **mm)
 
 	if (stage == IPV6_FW_GET) {
 		struct ip6_fw_chain *fcp = ip6_fw_chain.lh_first;
-		*mm = m = m_get(M_TRYWAIT, MT_DATA); /* XXX */
+		*mm = m = m_get(0, MT_DATA); /* XXX */
 		if (!m)
 			return(ENOBUFS);
 		if (sizeof *(fcp->rule) > MLEN) {
-			MCLGET(m, M_TRYWAIT);
+			MCLGET(m, 0);
 			if ((m->m_flags & M_EXT) == 0) {
 				m_free(m);
 				return(ENOBUFS);
@@ -1122,14 +1122,14 @@ ip6_fw_ctl(int stage, struct mbuf **mm)
 		for (; fcp; fcp = fcp->chain.le_next) {
 			bcopy(fcp->rule, m->m_data, sizeof *(fcp->rule));
 			m->m_len = sizeof *(fcp->rule);
-			m->m_next = m_get(M_TRYWAIT, MT_DATA); /* XXX */
+			m->m_next = m_get(0, MT_DATA); /* XXX */
 			if (!m->m_next) {
 				m_freem(*mm);
 				return(ENOBUFS);
 			}
 			m = m->m_next;
 			if (sizeof *(fcp->rule) > MLEN) {
-				MCLGET(m, M_TRYWAIT);
+				MCLGET(m, 0);
 				if ((m->m_flags & M_EXT) == 0) {
 					m_freem(*mm);
 					return(ENOBUFS);
diff --git a/sys/netinet6/ip6_input.c b/sys/netinet6/ip6_input.c
index 1f37bae..01b9236 100644
--- a/sys/netinet6/ip6_input.c
+++ b/sys/netinet6/ip6_input.c
@@ -317,11 +317,11 @@ ip6_input(m)
 	if (m && m->m_next != NULL && m->m_pkthdr.len < MCLBYTES) {
 		struct mbuf *n;
 
-		MGETHDR(n, M_DONTWAIT, MT_HEADER);
+		MGETHDR(n, M_NOWAIT, MT_HEADER);
 		if (n)
 			M_MOVE_PKTHDR(n, m);
 		if (n && n->m_pkthdr.len > MHLEN) {
-			MCLGET(n, M_DONTWAIT);
+			MCLGET(n, M_NOWAIT);
 			if ((n->m_flags & M_EXT) == 0) {
 				m_freem(n);
 				n = NULL;
@@ -1433,9 +1433,9 @@ ip6_pullexthdr(m, off, nxt)
 	else
 		elen = (ip6e.ip6e_len + 1) << 3;
 
-	MGET(n, M_DONTWAIT, MT_DATA);
+	MGET(n, M_NOWAIT, MT_DATA);
 	if (n && elen >= MLEN) {
-		MCLGET(n, M_DONTWAIT);
+		MCLGET(n, M_NOWAIT);
 		if ((n->m_flags & M_EXT) == 0) {
 			m_free(n);
 			n = NULL;
@@ -1623,7 +1623,7 @@ ip6_addaux(m)
 	if (!tag) {
 		tag = m_tag_get(PACKET_TAG_IPV6_INPUT,
 				sizeof (struct ip6aux),
-				M_DONTWAIT);
+				M_NOWAIT);
 		if (tag)
 			m_tag_prepend(m, tag);
 	}
diff --git a/sys/netinet6/ip6_mroute.c b/sys/netinet6/ip6_mroute.c
index f1257d3..2084065 100644
--- a/sys/netinet6/ip6_mroute.c
+++ b/sys/netinet6/ip6_mroute.c
@@ -1531,7 +1531,7 @@ register_send(ip6, mif, m)
 	++pim6stat.pim6s_snd_registers;
 
 	/* Make a copy of the packet to send to the user level process */
-	MGETHDR(mm, M_DONTWAIT, MT_HEADER);
+	MGETHDR(mm, M_NOWAIT, MT_HEADER);
 	if (mm == NULL)
 		return ENOBUFS;
 	mm->m_pkthdr.rcvif = NULL;
diff --git a/sys/netinet6/ip6_output.c b/sys/netinet6/ip6_output.c
index 64b11aa..b4f56a6 100644
--- a/sys/netinet6/ip6_output.c
+++ b/sys/netinet6/ip6_output.c
@@ -1040,7 +1040,7 @@ skip_ipsec2:;
 		 */
 		m0 = m;
 		for (off = hlen; off < tlen; off += len) {
-			MGETHDR(m, M_DONTWAIT, MT_HEADER);
+			MGETHDR(m, M_NOWAIT, MT_HEADER);
 			if (!m) {
 				error = ENOBUFS;
 				ip6stat.ip6s_odropped++;
@@ -1153,12 +1153,12 @@ ip6_copyexthdr(mp, hdr, hlen)
 	if (hlen > MCLBYTES)
 		return(ENOBUFS); /* XXX */
 
-	MGET(m, M_DONTWAIT, MT_DATA);
+	MGET(m, M_NOWAIT, MT_DATA);
 	if (!m)
 		return(ENOBUFS);
 
 	if (hlen > MLEN) {
-		MCLGET(m, M_DONTWAIT);
+		MCLGET(m, M_NOWAIT);
 		if ((m->m_flags & M_EXT) == 0) {
 			m_free(m);
 			return(ENOBUFS);
@@ -1193,7 +1193,7 @@ ip6_insert_jumboopt(exthdrs, plen)
 	 * Otherwise, use it to store the options.
 	 */
 	if (exthdrs->ip6e_hbh == 0) {
-		MGET(mopt, M_DONTWAIT, MT_DATA);
+		MGET(mopt, M_NOWAIT, MT_DATA);
 		if (mopt == 0)
 			return(ENOBUFS);
 		mopt->m_len = JUMBOOPTLEN;
@@ -1225,9 +1225,9 @@ ip6_insert_jumboopt(exthdrs, plen)
 			 * As a consequence, we must always prepare a cluster
 			 * at this point.
 			 */
-			MGET(n, M_DONTWAIT, MT_DATA);
+			MGET(n, M_NOWAIT, MT_DATA);
 			if (n) {
-				MCLGET(n, M_DONTWAIT);
+				MCLGET(n, M_NOWAIT);
 				if ((n->m_flags & M_EXT) == 0) {
 					m_freem(n);
 					n = NULL;
@@ -1282,7 +1282,7 @@ ip6_insertfraghdr(m0, m, hlen, frghdrp)
 
 	if (hlen > sizeof(struct ip6_hdr)) {
 		n = m_copym(m0, sizeof(struct ip6_hdr),
-			    hlen - sizeof(struct ip6_hdr), M_DONTWAIT);
+			    hlen - sizeof(struct ip6_hdr), M_NOWAIT);
 		if (n == 0)
 			return(ENOBUFS);
 		m->m_next = n;
@@ -1304,7 +1304,7 @@ ip6_insertfraghdr(m0, m, hlen, frghdrp)
 		/* allocate a new mbuf for the fragment header */
 		struct mbuf *mfrg;
 
-		MGET(mfrg, M_DONTWAIT, MT_DATA);
+		MGET(mfrg, M_NOWAIT, MT_DATA);
 		if (mfrg == 0)
 			return(ENOBUFS);
 		mfrg->m_len = sizeof(struct ip6_frag);
@@ -1496,7 +1496,7 @@ do { \
 					break;
 				}
 				/* XXX */
-				MGET(m, sopt->sopt_td ? M_TRYWAIT : M_DONTWAIT, MT_HEADER);
+				MGET(m, sopt->sopt_td ? 0 : M_NOWAIT, MT_HEADER);
 				if (m == 0) {
 					error = ENOBUFS;
 					break;
@@ -1595,7 +1595,7 @@ do { \
 				if (in6p->in6p_options) {
 					struct mbuf *m;
 					m = m_copym(in6p->in6p_options,
-					    0, M_COPYALL, M_TRYWAIT);
+					    0, M_COPYALL, 0);
 					error = soopt_mcopyout(sopt, m);
 					if (error == 0)
 						m_freem(m);
@@ -1776,7 +1776,7 @@ ip6_pcbopts(pktopt, m, so, sopt)
 #endif
 		ip6_clearpktopts(opt, 1, -1);
 	} else
-		opt = malloc(sizeof(*opt), M_IP6OPT, M_WAITOK);
+		opt = malloc(sizeof(*opt), M_IP6OPT, 0);
 	*pktopt = NULL;
 
 	if (!m || m->m_len == 0) {
@@ -1959,7 +1959,7 @@ ip6_setmoptions(optname, im6op, m)
 		 * allocate one and initialize to default values.
 		 */
 		im6o = (struct ip6_moptions *)
-			malloc(sizeof(*im6o), M_IPMOPTS, M_WAITOK);
+			malloc(sizeof(*im6o), M_IPMOPTS, 0);
 
 		if (im6o == NULL)
 			return(ENOBUFS);
@@ -2129,7 +2129,7 @@ ip6_setmoptions(optname, im6op, m)
 		 * Everything looks good; add a new record to the multicast
 		 * address list for the given interface.
 		 */
-		imm = malloc(sizeof(*imm), M_IPMADDR, M_WAITOK);
+		imm = malloc(sizeof(*imm), M_IPMADDR, 0);
 		if (imm == NULL) {
 			error = ENOBUFS;
 			break;
@@ -2234,7 +2234,7 @@ ip6_getmoptions(optname, im6o, mp)
 {
 	u_int *hlim, *loop, *ifindex;
 
-	*mp = m_get(M_TRYWAIT, MT_HEADER);		/* XXX */
+	*mp = m_get(0, MT_HEADER);		/* XXX */
 
 	switch (optname) {
 
@@ -2333,7 +2333,7 @@ ip6_setpktoptions(control, opt, priv, needcopy)
 				/* XXX: Is it really WAITOK? */
 				opt->ip6po_pktinfo =
 					malloc(sizeof(struct in6_pktinfo),
-					       M_IP6OPT, M_WAITOK);
+					       M_IP6OPT, 0);
 				bcopy(CMSG_DATA(cm), opt->ip6po_pktinfo,
 				    sizeof(struct in6_pktinfo));
 			} else
@@ -2392,7 +2392,7 @@ ip6_setpktoptions(control, opt, priv, needcopy)
 			if (needcopy) {
 				opt->ip6po_nexthop =
 					malloc(*CMSG_DATA(cm),
-					       M_IP6OPT, M_WAITOK);
+					       M_IP6OPT, 0);
 				bcopy(CMSG_DATA(cm),
 				      opt->ip6po_nexthop,
 				      *CMSG_DATA(cm));
@@ -2415,7 +2415,7 @@ ip6_setpktoptions(control, opt, priv, needcopy)
 
 			if (needcopy) {
 				opt->ip6po_hbh =
-					malloc(hbhlen, M_IP6OPT, M_WAITOK);
+					malloc(hbhlen, M_IP6OPT, 0);
 				bcopy(hbh, opt->ip6po_hbh, hbhlen);
 			} else
 				opt->ip6po_hbh = hbh;
@@ -2453,7 +2453,7 @@ ip6_setpktoptions(control, opt, priv, needcopy)
 				newdest = &opt->ip6po_dest2;
 
 			if (needcopy) {
-				*newdest = malloc(destlen, M_IP6OPT, M_WAITOK);
+				*newdest = malloc(destlen, M_IP6OPT, 0);
 				bcopy(dest, *newdest, destlen);
 			} else
 				*newdest = dest;
@@ -2490,7 +2490,7 @@ ip6_setpktoptions(control, opt, priv, needcopy)
 
 			if (needcopy) {
 				opt->ip6po_rthdr = malloc(rthlen, M_IP6OPT,
-							  M_WAITOK);
+							  0);
 				bcopy(rth, opt->ip6po_rthdr, rthlen);
 			} else
 				opt->ip6po_rthdr = rth;
@@ -2570,7 +2570,7 @@ ip6_splithdr(m, exthdrs)
 
 	ip6 = mtod(m, struct ip6_hdr *);
 	if (m->m_len > sizeof(*ip6)) {
-		MGETHDR(mh, M_DONTWAIT, MT_HEADER);
+		MGETHDR(mh, M_NOWAIT, MT_HEADER);
 		if (mh == 0) {
 			m_freem(m);
 			return ENOBUFS;
diff --git a/sys/netinet6/ipcomp_core.c b/sys/netinet6/ipcomp_core.c
index a6cdea5..e47779a 100644
--- a/sys/netinet6/ipcomp_core.c
+++ b/sys/netinet6/ipcomp_core.c
@@ -146,9 +146,9 @@ do { \
 	}							\
 								\
 	/* get a fresh reply buffer */				\
-	MGET(n, M_DONTWAIT, MT_DATA);				\
+	MGET(n, M_NOWAIT, MT_DATA);				\
 	if (n) {						\
-		MCLGET(n, M_DONTWAIT);				\
+		MCLGET(n, M_NOWAIT);				\
 	}							\
 	if (!n) {						\
 		error = ENOBUFS;				\
diff --git a/sys/netinet6/ipcomp_output.c b/sys/netinet6/ipcomp_output.c
index 71e5755..17da454 100644
--- a/sys/netinet6/ipcomp_output.c
+++ b/sys/netinet6/ipcomp_output.c
@@ -171,12 +171,12 @@ ipcomp_output(m, nexthdrp, md, isr, af)
 	 * compromise two m_copym().  we will be going through every byte of
 	 * the payload during compression process anyways.
 	 */
-	mcopy = m_copym(m, 0, M_COPYALL, M_DONTWAIT);
+	mcopy = m_copym(m, 0, M_COPYALL, M_NOWAIT);
 	if (mcopy == NULL) {
 		error = ENOBUFS;
 		return 0;
 	}
-	md0 = m_copym(md, 0, M_COPYALL, M_DONTWAIT);
+	md0 = m_copym(md, 0, M_COPYALL, M_NOWAIT);
 	if (md0 == NULL) {
 		m_freem(mcopy);
 		error = ENOBUFS;
@@ -279,7 +279,7 @@ ipcomp_output(m, nexthdrp, md, isr, af)
 	 * after:  IP ... ipcomp payload
 	 */
 	if (M_LEADINGSPACE(md) < complen) {
-		MGET(n, M_DONTWAIT, MT_DATA);
+		MGET(n, M_NOWAIT, MT_DATA);
 		if (!n) {
 			m_freem(m);
 			error = ENOBUFS;
diff --git a/sys/netinet6/ipsec.c b/sys/netinet6/ipsec.c
index f898c0a..4f795fe 100644
--- a/sys/netinet6/ipsec.c
+++ b/sys/netinet6/ipsec.c
@@ -2006,7 +2006,7 @@ ipsec4_encapsulate(m, sav)
 	 */
 	if (M_LEADINGSPACE(m->m_next) < hlen) {
 		struct mbuf *n;
-		MGET(n, M_DONTWAIT, MT_DATA);
+		MGET(n, M_NOWAIT, MT_DATA);
 		if (!n) {
 			m_freem(m);
 			return ENOBUFS;
@@ -2105,7 +2105,7 @@ ipsec6_encapsulate(m, sav)
 		panic("ipsec6_encapsulate: assumption failed (first mbuf length)");
 	if (M_LEADINGSPACE(m->m_next) < sizeof(struct ip6_hdr)) {
 		struct mbuf *n;
-		MGET(n, M_DONTWAIT, MT_DATA);
+		MGET(n, M_NOWAIT, MT_DATA);
 		if (!n) {
 			m_freem(m);
 			return ENOBUFS;
@@ -3119,7 +3119,7 @@ ipsec4_splithdr(m)
 	hlen = ip->ip_hl << 2;
 #endif
 	if (m->m_len > hlen) {
-		MGETHDR(mh, M_DONTWAIT, MT_HEADER);
+		MGETHDR(mh, M_NOWAIT, MT_HEADER);
 		if (!mh) {
 			m_freem(m);
 			return NULL;
@@ -3155,7 +3155,7 @@ ipsec6_splithdr(m)
 	ip6 = mtod(m, struct ip6_hdr *);
 	hlen = sizeof(struct ip6_hdr);
 	if (m->m_len > hlen) {
-		MGETHDR(mh, M_DONTWAIT, MT_HEADER);
+		MGETHDR(mh, M_NOWAIT, MT_HEADER);
 		if (!mh) {
 			m_freem(m);
 			return NULL;
@@ -3366,16 +3366,16 @@ ipsec_copypkt(m)
 				struct mbuf *mm;
 
 				if (n->m_flags & M_PKTHDR) {
-					MGETHDR(mnew, M_DONTWAIT, MT_HEADER);
+					MGETHDR(mnew, M_NOWAIT, MT_HEADER);
 					if (mnew == NULL)
 						goto fail;
-					if (!m_dup_pkthdr(mnew, n, M_DONTWAIT)) {
+					if (!m_dup_pkthdr(mnew, n, M_NOWAIT)) {
 						m_free(mnew);
 						goto fail;
 					}
 				}
 				else {
-					MGET(mnew, M_DONTWAIT, MT_DATA);
+					MGET(mnew, M_NOWAIT, MT_DATA);
 					if (mnew == NULL)
 						goto fail;
 				}
@@ -3399,7 +3399,7 @@ ipsec_copypkt(m)
 					if (remain <= (mm->m_flags & M_PKTHDR ? MHLEN : MLEN))
 						len = remain;
 					else { /* allocate a cluster */
-						MCLGET(mm, M_DONTWAIT);
+						MCLGET(mm, M_NOWAIT);
 						if (!(mm->m_flags & M_EXT)) {
 							m_free(mm);
 							goto fail;
@@ -3419,7 +3419,7 @@ ipsec_copypkt(m)
 						break;
 
 					/* need another mbuf */
-					MGETHDR(mn, M_DONTWAIT, MT_HEADER);
+					MGETHDR(mn, M_NOWAIT, MT_HEADER);
 					if (mn == NULL)
 						goto fail;
 					mn->m_pkthdr.rcvif = NULL;
diff --git a/sys/netinet6/mld6.c b/sys/netinet6/mld6.c
index 61c0e0c..fce6e1b 100644
--- a/sys/netinet6/mld6.c
+++ b/sys/netinet6/mld6.c
@@ -400,10 +400,10 @@ mld6_sendpkt(in6m, type, dst)
 	 * We allocate 2 mbufs and make chain in advance because
 	 * it is more convenient when inserting the hop-by-hop option later.
 	 */
-	MGETHDR(mh, M_DONTWAIT, MT_HEADER);
+	MGETHDR(mh, M_NOWAIT, MT_HEADER);
 	if (mh == NULL)
 		return;
-	MGET(md, M_DONTWAIT, MT_DATA);
+	MGET(md, M_NOWAIT, MT_DATA);
 	if (md == NULL) {
 		m_free(mh);
 		return;
diff --git a/sys/netinet6/nd6.c b/sys/netinet6/nd6.c
index 33913d4..df3fdb9 100644
--- a/sys/netinet6/nd6.c
+++ b/sys/netinet6/nd6.c
@@ -164,7 +164,7 @@ nd6_ifattach(ifp)
 
 		/* grow nd_ifinfo */
 		n = nd_ifinfo_indexlim * sizeof(struct nd_ifinfo);
-		q = (caddr_t)malloc(n, M_IP6NDP, M_WAITOK);
+		q = (caddr_t)malloc(n, M_IP6NDP, 0);
 		bzero(q, n);
 		if (nd_ifinfo) {
 			bcopy((caddr_t)nd_ifinfo, q, n/2);
diff --git a/sys/netinet6/nd6_nbr.c b/sys/netinet6/nd6_nbr.c
index 16bfbb4..4bf1820 100644
--- a/sys/netinet6/nd6_nbr.c
+++ b/sys/netinet6/nd6_nbr.c
@@ -362,9 +362,9 @@ nd6_ns_output(ifp, daddr6, taddr6, ln, dad)
 		return;
 	}
 
-	MGETHDR(m, M_DONTWAIT, MT_DATA);
+	MGETHDR(m, M_NOWAIT, MT_DATA);
 	if (m && max_linkhdr + maxlen >= MHLEN) {
-		MCLGET(m, M_DONTWAIT);
+		MCLGET(m, M_NOWAIT);
 		if ((m->m_flags & M_EXT) == 0) {
 			m_free(m);
 			m = NULL;
@@ -847,9 +847,9 @@ nd6_na_output(ifp, daddr6, taddr6, flags, tlladdr, sdl0)
 		return;
 	}
 
-	MGETHDR(m, M_DONTWAIT, MT_DATA);
+	MGETHDR(m, M_NOWAIT, MT_DATA);
 	if (m && max_linkhdr + maxlen >= MHLEN) {
-		MCLGET(m, M_DONTWAIT);
+		MCLGET(m, M_NOWAIT);
 		if ((m->m_flags & M_EXT) == 0) {
 			m_free(m);
 			m = NULL;
diff --git a/sys/netinet6/raw_ip6.c b/sys/netinet6/raw_ip6.c
index 540533b..abb7358 100644
--- a/sys/netinet6/raw_ip6.c
+++ b/sys/netinet6/raw_ip6.c
@@ -372,7 +372,7 @@ rip6_output(m, va_alist)
 		code = icmp6->icmp6_code;
 	}
 
-	M_PREPEND(m, sizeof(*ip6), M_TRYWAIT);
+	M_PREPEND(m, sizeof(*ip6), 0);
 	ip6 = mtod(m, struct ip6_hdr *);
 
 	/*
diff --git a/sys/netinet6/scope6.c b/sys/netinet6/scope6.c
index 0c32da8..10637e3 100644
--- a/sys/netinet6/scope6.c
+++ b/sys/netinet6/scope6.c
@@ -75,7 +75,7 @@ scope6_ifattach(ifp)
 		/* grow scope index array */
 		n = if_indexlim * sizeof(struct scope6_id);
 		/* XXX: need new malloc type? */
-		q = (caddr_t)malloc(n, M_IFADDR, M_WAITOK);
+		q = (caddr_t)malloc(n, M_IFADDR, 0);
 		bzero(q, n);
 		if (scope6_ids) {
 			bcopy((caddr_t)scope6_ids, q, n/2);
diff --git a/sys/netinet6/udp6_output.c b/sys/netinet6/udp6_output.c
index 1de45f0..659eb0d 100644
--- a/sys/netinet6/udp6_output.c
+++ b/sys/netinet6/udp6_output.c
@@ -248,7 +248,7 @@ udp6_output(in6p, m, addr6, control, td)
 	 * Calculate data length and get a mbuf
 	 * for UDP and IP6 headers.
 	 */
-	M_PREPEND(m, hlen + sizeof(struct udphdr), M_DONTWAIT);
+	M_PREPEND(m, hlen + sizeof(struct udphdr), M_NOWAIT);
 	if (m == 0) {
 		error = ENOBUFS;
 		goto release;