* [PATCH v2 0/5] Add RDMA support to the pNFS file+flexfiles data channels @ 2020-11-09 21:10 trondmy 2020-11-09 21:10 ` [PATCH v2 1/5] SUNRPC: xprt_load_transport() needs to support the netid "rdma6" trondmy 0 siblings, 1 reply; 8+ messages in thread From: trondmy @ 2020-11-09 21:10 UTC (permalink / raw) To: linux-nfs From: Trond Myklebust <trond.myklebust@hammerspace.com> Add support for connecting to the pNFS files/flexfiles data servers through RDMA, assuming that the GETDEVICEINFO call advertises that support. v2: Fix layoutstats encoding for pNFS/flexfiles. Trond Myklebust (5): SUNRPC: xprt_load_transport() needs to support the netid "rdma6" NFSv4/pNFS: Use connections to a DS that are all of the same protocol family NFSv4/pNFS: Store the transport type in struct nfs4_pnfs_ds_addr pNFS/flexfiles: Fix up layoutstats reporting for non-TCP transports pNFS: Clean up open coded kmemdup_nul() fs/nfs/flexfilelayout/flexfilelayout.c | 34 +++++++++-- fs/nfs/pnfs.h | 1 + fs/nfs/pnfs_nfs.c | 80 +++++++++++++++++++------- net/sunrpc/xprtrdma/module.c | 2 + 4 files changed, 91 insertions(+), 26 deletions(-) -- 2.28.0 ^ permalink raw reply [flat|nested] 8+ messages in thread
* [PATCH v2 1/5] SUNRPC: xprt_load_transport() needs to support the netid "rdma6" 2020-11-09 21:10 [PATCH v2 0/5] Add RDMA support to the pNFS file+flexfiles data channels trondmy @ 2020-11-09 21:10 ` trondmy 2020-11-09 21:10 ` [PATCH v2 2/5] NFSv4/pNFS: Use connections to a DS that are all of the same protocol family trondmy 2020-11-09 21:50 ` [PATCH v2 1/5] SUNRPC: xprt_load_transport() needs to support the netid "rdma6" Chuck Lever 0 siblings, 2 replies; 8+ messages in thread From: trondmy @ 2020-11-09 21:10 UTC (permalink / raw) To: linux-nfs From: Trond Myklebust <trond.myklebust@hammerspace.com> According to RFC5666, the correct netid for an IPv6 addressed RDMA transport is "rdma6", which we've supported as a mount option since Linux-4.7. The problem is when we try to load the module "xprtrdma6", that will fail, since there is no modulealias of that name. Fixes: 181342c5ebe8 ("xprtrdma: Add rdma6 option to support NFS/RDMA IPv6") Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com> --- net/sunrpc/xprtrdma/module.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/net/sunrpc/xprtrdma/module.c b/net/sunrpc/xprtrdma/module.c index 620327c01302..fb55983628b4 100644 --- a/net/sunrpc/xprtrdma/module.c +++ b/net/sunrpc/xprtrdma/module.c @@ -23,7 +23,9 @@ MODULE_AUTHOR("Open Grid Computing and Network Appliance, Inc."); MODULE_DESCRIPTION("RPC/RDMA Transport"); MODULE_LICENSE("Dual BSD/GPL"); MODULE_ALIAS("svcrdma"); +MODULE_ALIAS("svcrdma6"); MODULE_ALIAS("xprtrdma"); +MODULE_ALIAS("xprtrdma6"); static void __exit rpc_rdma_cleanup(void) { -- 2.28.0 ^ permalink raw reply related [flat|nested] 8+ messages in thread
* [PATCH v2 2/5] NFSv4/pNFS: Use connections to a DS that are all of the same protocol family 2020-11-09 21:10 ` [PATCH v2 1/5] SUNRPC: xprt_load_transport() needs to support the netid "rdma6" trondmy @ 2020-11-09 21:10 ` trondmy 2020-11-09 21:10 ` [PATCH v2 3/5] NFSv4/pNFS: Store the transport type in struct nfs4_pnfs_ds_addr trondmy 2020-11-09 21:50 ` [PATCH v2 1/5] SUNRPC: xprt_load_transport() needs to support the netid "rdma6" Chuck Lever 1 sibling, 1 reply; 8+ messages in thread From: trondmy @ 2020-11-09 21:10 UTC (permalink / raw) To: linux-nfs From: Trond Myklebust <trond.myklebust@hammerspace.com> If the pNFS metadata server advertises multiple addresses for the same data server, we should try to connect to just one protocol family and transport type on the assumption that homogeneity will improve performance. Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com> --- fs/nfs/pnfs_nfs.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/fs/nfs/pnfs_nfs.c b/fs/nfs/pnfs_nfs.c index 679767ac258d..7027dac41cc7 100644 --- a/fs/nfs/pnfs_nfs.c +++ b/fs/nfs/pnfs_nfs.c @@ -860,6 +860,9 @@ static int _nfs4_pnfs_v3_ds_connect(struct nfs_server *mds_srv, .addrlen = da->da_addrlen, .servername = clp->cl_hostname, }; + + if (da->da_addr.ss_family != clp->cl_addr.ss_family) + continue; /* Add this address as an alias */ rpc_clnt_add_xprt(clp->cl_rpcclient, &xprt_args, rpc_clnt_test_and_add_xprt, NULL); @@ -920,6 +923,8 @@ static int _nfs4_pnfs_v4_ds_connect(struct nfs_server *mds_srv, .data = &xprtdata, }; + if (da->da_addr.ss_family != clp->cl_addr.ss_family) + continue; /** * Test this address for session trunking and * add as an alias -- 2.28.0 ^ permalink raw reply related [flat|nested] 8+ messages in thread
* [PATCH v2 3/5] NFSv4/pNFS: Store the transport type in struct nfs4_pnfs_ds_addr 2020-11-09 21:10 ` [PATCH v2 2/5] NFSv4/pNFS: Use connections to a DS that are all of the same protocol family trondmy @ 2020-11-09 21:10 ` trondmy 2020-11-09 21:10 ` [PATCH v2 4/5] pNFS/flexfiles: Fix up layoutstats reporting for non-TCP transports trondmy 0 siblings, 1 reply; 8+ messages in thread From: trondmy @ 2020-11-09 21:10 UTC (permalink / raw) To: linux-nfs From: Trond Myklebust <trond.myklebust@hammerspace.com> We want to enable RDMA and UDP as valid transport methods if a GETDEVICEINFO call specifies it. Do so by adding a parser for the netid that translates it to an appropriate argument for the RPC transport layer. Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com> --- fs/nfs/pnfs.h | 1 + fs/nfs/pnfs_nfs.c | 66 +++++++++++++++++++++++++++++++++++++---------- 2 files changed, 53 insertions(+), 14 deletions(-) diff --git a/fs/nfs/pnfs.h b/fs/nfs/pnfs.h index 2661c44c62db..20ee37b751e3 100644 --- a/fs/nfs/pnfs.h +++ b/fs/nfs/pnfs.h @@ -51,6 +51,7 @@ struct nfs4_pnfs_ds_addr { size_t da_addrlen; struct list_head da_node; /* nfs4_pnfs_dev_hlist dev_dslist */ char *da_remotestr; /* human readable addr+port */ + int da_transport; }; struct nfs4_pnfs_ds { diff --git a/fs/nfs/pnfs_nfs.c b/fs/nfs/pnfs_nfs.c index 7027dac41cc7..d00750743100 100644 --- a/fs/nfs/pnfs_nfs.c +++ b/fs/nfs/pnfs_nfs.c @@ -854,13 +854,15 @@ static int _nfs4_pnfs_v3_ds_connect(struct nfs_server *mds_srv, if (!IS_ERR(clp)) { struct xprt_create xprt_args = { - .ident = XPRT_TRANSPORT_TCP, + .ident = da->da_transport, .net = clp->cl_net, .dstaddr = (struct sockaddr *)&da->da_addr, .addrlen = da->da_addrlen, .servername = clp->cl_hostname, }; + if (da->da_transport != clp->cl_proto) + continue; if (da->da_addr.ss_family != clp->cl_addr.ss_family) continue; /* Add this address as an alias */ @@ -870,7 +872,7 @@ static int _nfs4_pnfs_v3_ds_connect(struct nfs_server *mds_srv, } clp = get_v3_ds_connect(mds_srv, (struct sockaddr *)&da->da_addr, - da->da_addrlen, IPPROTO_TCP, + da->da_addrlen, da->da_transport, timeo, retrans); if (IS_ERR(clp)) continue; @@ -908,7 +910,7 @@ static int _nfs4_pnfs_v4_ds_connect(struct nfs_server *mds_srv, if (!IS_ERR(clp) && clp->cl_mvops->session_trunk) { struct xprt_create xprt_args = { - .ident = XPRT_TRANSPORT_TCP, + .ident = da->da_transport, .net = clp->cl_net, .dstaddr = (struct sockaddr *)&da->da_addr, .addrlen = da->da_addrlen, @@ -923,6 +925,8 @@ static int _nfs4_pnfs_v4_ds_connect(struct nfs_server *mds_srv, .data = &xprtdata, }; + if (da->da_transport != clp->cl_proto) + continue; if (da->da_addr.ss_family != clp->cl_addr.ss_family) continue; /** @@ -937,8 +941,9 @@ static int _nfs4_pnfs_v4_ds_connect(struct nfs_server *mds_srv, } else { clp = nfs4_set_ds_client(mds_srv, (struct sockaddr *)&da->da_addr, - da->da_addrlen, IPPROTO_TCP, - timeo, retrans, minor_version); + da->da_addrlen, + da->da_transport, timeo, + retrans, minor_version); if (IS_ERR(clp)) continue; @@ -1017,6 +1022,41 @@ int nfs4_pnfs_ds_connect(struct nfs_server *mds_srv, struct nfs4_pnfs_ds *ds, } EXPORT_SYMBOL_GPL(nfs4_pnfs_ds_connect); +struct xprt_lookup_transport { + const char *name; + sa_family_t protofamily; + int type; +}; + +static const struct xprt_lookup_transport xl_xprt[] = { + { "tcp", AF_INET, XPRT_TRANSPORT_TCP }, + { "tcp6", AF_INET6, XPRT_TRANSPORT_TCP }, + { "rdma", AF_INET, XPRT_TRANSPORT_RDMA }, + { "rdma6", AF_INET6, XPRT_TRANSPORT_RDMA }, + { "udp", AF_INET, XPRT_TRANSPORT_UDP }, + { "udp6", AF_INET6, XPRT_TRANSPORT_UDP }, + { NULL, 0, -1 }, +}; + +static int +nfs4_decode_transport(const char *str, size_t len, sa_family_t protofamily) +{ + const struct xprt_lookup_transport *p; + + for (p = xl_xprt; p->name; p++) { + if (p->protofamily != protofamily) + continue; + if (strlen(p->name) != len) + continue; + if (memcmp(p->name, str, len) != 0) + continue; + if (xprt_load_transport(p->name) != 0) + continue; + return p->type; + } + return -1; +} + /* * Currently only supports ipv4, ipv6 and one multi-path address. */ @@ -1029,8 +1069,8 @@ nfs4_decode_mp_ds_addr(struct net *net, struct xdr_stream *xdr, gfp_t gfp_flags) int nlen, rlen; int tmp[2]; __be32 *p; - char *netid, *match_netid; - size_t len, match_netid_len; + char *netid; + size_t len; char *startsep = ""; char *endsep = ""; @@ -1114,15 +1154,11 @@ nfs4_decode_mp_ds_addr(struct net *net, struct xdr_stream *xdr, gfp_t gfp_flags) case AF_INET: ((struct sockaddr_in *)&da->da_addr)->sin_port = port; da->da_addrlen = sizeof(struct sockaddr_in); - match_netid = "tcp"; - match_netid_len = 3; break; case AF_INET6: ((struct sockaddr_in6 *)&da->da_addr)->sin6_port = port; da->da_addrlen = sizeof(struct sockaddr_in6); - match_netid = "tcp6"; - match_netid_len = 4; startsep = "["; endsep = "]"; break; @@ -1133,9 +1169,11 @@ nfs4_decode_mp_ds_addr(struct net *net, struct xdr_stream *xdr, gfp_t gfp_flags) goto out_free_da; } - if (nlen != match_netid_len || strncmp(netid, match_netid, nlen)) { - dprintk("%s: ERROR: r_netid \"%s\" != \"%s\"\n", - __func__, netid, match_netid); + da->da_transport = nfs4_decode_transport(netid, nlen, + da->da_addr.ss_family); + if (da->da_transport == -1) { + dprintk("%s: ERROR: unknown r_netid \"%*s\"\n", + __func__, nlen, netid); goto out_free_da; } -- 2.28.0 ^ permalink raw reply related [flat|nested] 8+ messages in thread
* [PATCH v2 4/5] pNFS/flexfiles: Fix up layoutstats reporting for non-TCP transports 2020-11-09 21:10 ` [PATCH v2 3/5] NFSv4/pNFS: Store the transport type in struct nfs4_pnfs_ds_addr trondmy @ 2020-11-09 21:10 ` trondmy 2020-11-09 21:10 ` [PATCH v2 5/5] pNFS: Clean up open coded kmemdup_nul() trondmy 0 siblings, 1 reply; 8+ messages in thread From: trondmy @ 2020-11-09 21:10 UTC (permalink / raw) To: linux-nfs From: Trond Myklebust <trond.myklebust@hammerspace.com> Ensure that we report the correct netid when using UDP or RDMA transports to the DSes. Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com> --- fs/nfs/flexfilelayout/flexfilelayout.c | 34 ++++++++++++++++++++++---- 1 file changed, 29 insertions(+), 5 deletions(-) diff --git a/fs/nfs/flexfilelayout/flexfilelayout.c b/fs/nfs/flexfilelayout/flexfilelayout.c index a163533446fa..c760238ba649 100644 --- a/fs/nfs/flexfilelayout/flexfilelayout.c +++ b/fs/nfs/flexfilelayout/flexfilelayout.c @@ -2279,18 +2279,41 @@ ff_layout_encode_netaddr(struct xdr_stream *xdr, struct nfs4_pnfs_ds_addr *da) if (ff_layout_ntop4(sap, addrbuf, sizeof(addrbuf)) == 0) return; port = ntohs(((struct sockaddr_in *)sap)->sin_port); - netid = "tcp"; - netid_len = 3; + switch (da->da_transport) { + case XPRT_TRANSPORT_TCP: + netid = "tcp"; + break; + case XPRT_TRANSPORT_RDMA: + netid = "rdma"; + break; + case XPRT_TRANSPORT_UDP: + netid = "udp"; + break; + default: + WARN_ON_ONCE(1); + return; + } break; case AF_INET6: if (ff_layout_ntop6_noscopeid(sap, addrbuf, sizeof(addrbuf)) == 0) return; port = ntohs(((struct sockaddr_in6 *)sap)->sin6_port); - netid = "tcp6"; - netid_len = 4; + switch (da->da_transport) { + case XPRT_TRANSPORT_TCP: + netid = "tcp6"; + break; + case XPRT_TRANSPORT_RDMA: + netid = "rdma6"; + break; + case XPRT_TRANSPORT_UDP: + netid = "udp6"; + break; + default: + WARN_ON_ONCE(1); + return; + } break; default: - /* we only support tcp and tcp6 */ WARN_ON_ONCE(1); return; } @@ -2298,6 +2321,7 @@ ff_layout_encode_netaddr(struct xdr_stream *xdr, struct nfs4_pnfs_ds_addr *da) snprintf(portbuf, sizeof(portbuf), ".%u.%u", port >> 8, port & 0xff); len = strlcat(addrbuf, portbuf, sizeof(addrbuf)); + netid_len = strlen(netid); p = xdr_reserve_space(xdr, 4 + netid_len); xdr_encode_opaque(p, netid, netid_len); -- 2.28.0 ^ permalink raw reply related [flat|nested] 8+ messages in thread
* [PATCH v2 5/5] pNFS: Clean up open coded kmemdup_nul() 2020-11-09 21:10 ` [PATCH v2 4/5] pNFS/flexfiles: Fix up layoutstats reporting for non-TCP transports trondmy @ 2020-11-09 21:10 ` trondmy 0 siblings, 0 replies; 8+ messages in thread From: trondmy @ 2020-11-09 21:10 UTC (permalink / raw) To: linux-nfs From: Trond Myklebust <trond.myklebust@hammerspace.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com> --- fs/nfs/pnfs_nfs.c | 9 ++------- 1 file changed, 2 insertions(+), 7 deletions(-) diff --git a/fs/nfs/pnfs_nfs.c b/fs/nfs/pnfs_nfs.c index d00750743100..5acddd14ffe8 100644 --- a/fs/nfs/pnfs_nfs.c +++ b/fs/nfs/pnfs_nfs.c @@ -1085,13 +1085,10 @@ nfs4_decode_mp_ds_addr(struct net *net, struct xdr_stream *xdr, gfp_t gfp_flags) if (unlikely(!p)) goto out_err; - netid = kmalloc(nlen+1, gfp_flags); + netid = kmemdup_nul(p, nlen, gfp_flags); if (unlikely(!netid)) goto out_err; - netid[nlen] = '\0'; - memcpy(netid, p, nlen); - /* r_addr: ip/ip6addr with port in dec octets - see RFC 5665 */ p = xdr_inline_decode(xdr, 4); if (unlikely(!p)) @@ -1108,13 +1105,11 @@ nfs4_decode_mp_ds_addr(struct net *net, struct xdr_stream *xdr, gfp_t gfp_flags) rlen); goto out_free_netid; } - buf = kmalloc(rlen + 1, gfp_flags); + buf = kmemdup_nul(p, rlen, gfp_flags); if (!buf) { dprintk("%s: Not enough memory\n", __func__); goto out_free_netid; } - buf[rlen] = '\0'; - memcpy(buf, p, rlen); /* replace port '.' with '-' */ portstr = strrchr(buf, '.'); -- 2.28.0 ^ permalink raw reply related [flat|nested] 8+ messages in thread
* Re: [PATCH v2 1/5] SUNRPC: xprt_load_transport() needs to support the netid "rdma6" 2020-11-09 21:10 ` [PATCH v2 1/5] SUNRPC: xprt_load_transport() needs to support the netid "rdma6" trondmy 2020-11-09 21:10 ` [PATCH v2 2/5] NFSv4/pNFS: Use connections to a DS that are all of the same protocol family trondmy @ 2020-11-09 21:50 ` Chuck Lever 2020-11-09 22:06 ` Trond Myklebust 1 sibling, 1 reply; 8+ messages in thread From: Chuck Lever @ 2020-11-09 21:50 UTC (permalink / raw) To: Trond Myklebust; +Cc: Linux NFS Mailing List > On Nov 9, 2020, at 4:10 PM, trondmy@gmail.com wrote: > > From: Trond Myklebust <trond.myklebust@hammerspace.com> > > According to RFC5666, the correct netid for an IPv6 addressed RDMA > transport is "rdma6", which we've supported as a mount option since > Linux-4.7. The problem is when we try to load the module "xprtrdma6", > that will fail, since there is no modulealias of that name. Trying to wrap my head around this. Who is forming the legacy names "xprtrdma6" and "svcrdma6" ? The module name these days is "rpcrdma". Seems like you should fix the code that is trying to load these by the wrong name rather than adding more legacy names. > Fixes: 181342c5ebe8 ("xprtrdma: Add rdma6 option to support NFS/RDMA IPv6") > Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com> > --- > net/sunrpc/xprtrdma/module.c | 2 ++ > 1 file changed, 2 insertions(+) > > diff --git a/net/sunrpc/xprtrdma/module.c b/net/sunrpc/xprtrdma/module.c > index 620327c01302..fb55983628b4 100644 > --- a/net/sunrpc/xprtrdma/module.c > +++ b/net/sunrpc/xprtrdma/module.c > @@ -23,7 +23,9 @@ MODULE_AUTHOR("Open Grid Computing and Network Appliance, Inc."); > MODULE_DESCRIPTION("RPC/RDMA Transport"); > MODULE_LICENSE("Dual BSD/GPL"); > MODULE_ALIAS("svcrdma"); > +MODULE_ALIAS("svcrdma6"); > MODULE_ALIAS("xprtrdma"); > +MODULE_ALIAS("xprtrdma6"); > > static void __exit rpc_rdma_cleanup(void) > { > -- > 2.28.0 > -- Chuck Lever ^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: [PATCH v2 1/5] SUNRPC: xprt_load_transport() needs to support the netid "rdma6" 2020-11-09 21:50 ` [PATCH v2 1/5] SUNRPC: xprt_load_transport() needs to support the netid "rdma6" Chuck Lever @ 2020-11-09 22:06 ` Trond Myklebust 0 siblings, 0 replies; 8+ messages in thread From: Trond Myklebust @ 2020-11-09 22:06 UTC (permalink / raw) To: chuck.lever; +Cc: linux-nfs On Mon, 2020-11-09 at 16:50 -0500, Chuck Lever wrote: > > > > On Nov 9, 2020, at 4:10 PM, trondmy@gmail.com wrote: > > > > From: Trond Myklebust <trond.myklebust@hammerspace.com> > > > > According to RFC5666, the correct netid for an IPv6 addressed RDMA > > transport is "rdma6", which we've supported as a mount option since > > Linux-4.7. The problem is when we try to load the module > > "xprtrdma6", > > that will fail, since there is no modulealias of that name. > > Trying to wrap my head around this. Who is forming the legacy names > "xprtrdma6" and "svcrdma6" ? I don't care about "svcrdma6", because nothing uses that name, AFAICS, because __write_ports_addxprt() appears to use the "transport name", whatever that is. > The module name these days is "rpcrdma". Seems like you should fix > the code that is trying to load these by the wrong name rather than > adding more legacy names. No, I'm not going to do that. The intention was always that xprt_load_transport() should take the netid as its argument. Furthermore, it makes no sense for either the NFS or generic RPC layers to have to figure out how by themselves how to translate netids into transport module names. > > > Fixes: 181342c5ebe8 ("xprtrdma: Add rdma6 option to support > > NFS/RDMA IPv6") > > Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com> > > --- > > net/sunrpc/xprtrdma/module.c | 2 ++ > > 1 file changed, 2 insertions(+) > > > > diff --git a/net/sunrpc/xprtrdma/module.c > > b/net/sunrpc/xprtrdma/module.c > > index 620327c01302..fb55983628b4 100644 > > --- a/net/sunrpc/xprtrdma/module.c > > +++ b/net/sunrpc/xprtrdma/module.c > > @@ -23,7 +23,9 @@ MODULE_AUTHOR("Open Grid Computing and Network > > Appliance, Inc."); > > MODULE_DESCRIPTION("RPC/RDMA Transport"); > > MODULE_LICENSE("Dual BSD/GPL"); > > MODULE_ALIAS("svcrdma"); > > +MODULE_ALIAS("svcrdma6"); > > MODULE_ALIAS("xprtrdma"); > > +MODULE_ALIAS("xprtrdma6"); > > > > static void __exit rpc_rdma_cleanup(void) > > { > > -- > > 2.28.0 > > > > -- > Chuck Lever > > > -- Trond Myklebust Linux NFS client maintainer, Hammerspace trond.myklebust@hammerspace.com ^ permalink raw reply [flat|nested] 8+ messages in thread
end of thread, other threads:[~2020-11-09 22:06 UTC | newest] Thread overview: 8+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2020-11-09 21:10 [PATCH v2 0/5] Add RDMA support to the pNFS file+flexfiles data channels trondmy 2020-11-09 21:10 ` [PATCH v2 1/5] SUNRPC: xprt_load_transport() needs to support the netid "rdma6" trondmy 2020-11-09 21:10 ` [PATCH v2 2/5] NFSv4/pNFS: Use connections to a DS that are all of the same protocol family trondmy 2020-11-09 21:10 ` [PATCH v2 3/5] NFSv4/pNFS: Store the transport type in struct nfs4_pnfs_ds_addr trondmy 2020-11-09 21:10 ` [PATCH v2 4/5] pNFS/flexfiles: Fix up layoutstats reporting for non-TCP transports trondmy 2020-11-09 21:10 ` [PATCH v2 5/5] pNFS: Clean up open coded kmemdup_nul() trondmy 2020-11-09 21:50 ` [PATCH v2 1/5] SUNRPC: xprt_load_transport() needs to support the netid "rdma6" Chuck Lever 2020-11-09 22:06 ` Trond Myklebust
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