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authorAndy Adamson <andros@netapp.com>2009-06-16 04:20:53 +0300
committerJ. Bruce Fields <bfields@citi.umich.edu>2009-06-18 18:33:57 -0700
commitab52ae6db035fa425f90146327ab7d2c5d3e5654 (patch)
tree449acdb98ca035bd57c45b4bd8e89ac04f8ecff7
parentef52bff8409bba78b042f1bcf33a0f49debc9774 (diff)
nfsd41: Backchannel: minorversion support for the back channel
Prepare to share backchannel code with NFSv4.1. Signed-off-by: Andy Adamson <andros@netapp.com> Signed-off-by: Benny Halevy <bhalevy@panasas.com> Signed-off-by: Ricardo Labiaga <Ricardo.Labiaga@netapp.com> [nfsd41: use nfsd4_cb_sequence for callback minorversion] Signed-off-by: Benny Halevy <bhalevy@panasas.com> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
-rw-r--r--fs/nfsd/nfs4callback.c3
-rw-r--r--fs/nfsd/nfs4state.c1
-rw-r--r--include/linux/nfsd/state.h3
3 files changed, 5 insertions, 2 deletions
diff --git a/fs/nfsd/nfs4callback.c b/fs/nfsd/nfs4callback.c
index 353eb4a0b84..3fd23f7acec 100644
--- a/fs/nfsd/nfs4callback.c
+++ b/fs/nfsd/nfs4callback.c
@@ -141,6 +141,7 @@ struct nfs4_cb_compound_hdr {
u32 ident;
u32 nops;
__be32 *nops_p;
+ u32 minorversion;
u32 taglen;
char *tag;
};
@@ -209,7 +210,7 @@ encode_cb_compound_hdr(struct xdr_stream *xdr, struct nfs4_cb_compound_hdr *hdr)
RESERVE_SPACE(16);
WRITE32(0); /* tag length is always 0 */
- WRITE32(NFS4_MINOR_VERSION);
+ WRITE32(hdr->minorversion);
WRITE32(hdr->ident);
hdr->nops_p = p;
WRITE32(hdr->nops);
diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c
index ef6944b19f0..980a216a48c 100644
--- a/fs/nfsd/nfs4state.c
+++ b/fs/nfsd/nfs4state.c
@@ -984,6 +984,7 @@ gen_callback(struct nfs4_client *clp, struct nfsd4_setclientid *se)
if ( !(parse_ipv4(se->se_callback_addr_len, se->se_callback_addr_val,
&cb->cb_addr, &cb->cb_port)))
goto out_err;
+ cb->cb_minorversion = 0;
cb->cb_prog = se->se_callback_prog;
cb->cb_ident = se->se_callback_ident;
return;
diff --git a/include/linux/nfsd/state.h b/include/linux/nfsd/state.h
index 105cc100de0..f5a95fd3431 100644
--- a/include/linux/nfsd/state.h
+++ b/include/linux/nfsd/state.h
@@ -85,7 +85,8 @@ struct nfs4_cb_conn {
u32 cb_addr;
unsigned short cb_port;
u32 cb_prog;
- u32 cb_ident;
+ u32 cb_minorversion;
+ u32 cb_ident; /* minorversion 0 only */
/* RPC client info */
atomic_t cb_set; /* successful CB_NULL call */
struct rpc_clnt * cb_client;