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authorOlga Kornievskaia <kolga@netapp.com>2018-07-20 18:19:18 -0400
committerJ. Bruce Fields <bfields@redhat.com>2018-09-25 20:34:54 -0400
commit6308bc98e86ee8c7bbd56a39839a257a16c9378c (patch)
tree188a304a627789da2638c4283ae52491bcd3d034 /fs/nfsd
parent9eb190fca8f9056ea4502526dc55fe52318d9afc (diff)
downloadlinux-6308bc98e86ee8c7bbd56a39839a257a16c9378c.tar.bz2
NFSD OFFLOAD_STATUS xdr
Signed-off-by: Olga Kornievskaia <kolga@netapp.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Diffstat (limited to 'fs/nfsd')
-rw-r--r--fs/nfsd/nfs4proc.c20
-rw-r--r--fs/nfsd/nfs4xdr.c27
-rw-r--r--fs/nfsd/xdr4.h10
3 files changed, 55 insertions, 2 deletions
diff --git a/fs/nfsd/nfs4proc.c b/fs/nfsd/nfs4proc.c
index b7bc6e1a85ac..aa05aa3947e0 100644
--- a/fs/nfsd/nfs4proc.c
+++ b/fs/nfsd/nfs4proc.c
@@ -1144,6 +1144,13 @@ nfsd4_fallocate(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
fput(file);
return status;
}
+static __be32
+nfsd4_offload_status(struct svc_rqst *rqstp,
+ struct nfsd4_compound_state *cstate,
+ union nfsd4_op_u *u)
+{
+ return nfserr_notsupp;
+}
static __be32
nfsd4_allocate(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
@@ -2047,6 +2054,14 @@ static inline u32 nfsd4_copy_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op)
1 /* cr_synchronous */) * sizeof(__be32);
}
+static inline u32 nfsd4_offload_status_rsize(struct svc_rqst *rqstp,
+ struct nfsd4_op *op)
+{
+ return (op_encode_hdr_size +
+ 2 /* osr_count */ +
+ 1 /* osr_complete<1> optional 0 for now */) * sizeof(__be32);
+}
+
#ifdef CONFIG_NFSD_PNFS
static inline u32 nfsd4_getdeviceinfo_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op)
{
@@ -2460,6 +2475,11 @@ static const struct nfsd4_operation nfsd4_ops[] = {
.op_name = "OP_SEEK",
.op_rsize_bop = nfsd4_seek_rsize,
},
+ [OP_OFFLOAD_STATUS] = {
+ .op_func = nfsd4_offload_status,
+ .op_name = "OP_OFFLOAD_STATUS",
+ .op_rsize_bop = nfsd4_offload_status_rsize,
+ },
};
/**
diff --git a/fs/nfsd/nfs4xdr.c b/fs/nfsd/nfs4xdr.c
index 418fa9c78186..67b7e6f19ed6 100644
--- a/fs/nfsd/nfs4xdr.c
+++ b/fs/nfsd/nfs4xdr.c
@@ -1768,6 +1768,13 @@ nfsd4_decode_copy(struct nfsd4_compoundargs *argp, struct nfsd4_copy *copy)
}
static __be32
+nfsd4_decode_offload_status(struct nfsd4_compoundargs *argp,
+ struct nfsd4_offload_status *os)
+{
+ return nfsd4_decode_stateid(argp, &os->stateid);
+}
+
+static __be32
nfsd4_decode_seek(struct nfsd4_compoundargs *argp, struct nfsd4_seek *seek)
{
DECODE_HEAD;
@@ -1874,7 +1881,7 @@ static const nfsd4_dec nfsd4_dec_ops[] = {
[OP_LAYOUTERROR] = (nfsd4_dec)nfsd4_decode_notsupp,
[OP_LAYOUTSTATS] = (nfsd4_dec)nfsd4_decode_notsupp,
[OP_OFFLOAD_CANCEL] = (nfsd4_dec)nfsd4_decode_notsupp,
- [OP_OFFLOAD_STATUS] = (nfsd4_dec)nfsd4_decode_notsupp,
+ [OP_OFFLOAD_STATUS] = (nfsd4_dec)nfsd4_decode_offload_status,
[OP_READ_PLUS] = (nfsd4_dec)nfsd4_decode_notsupp,
[OP_SEEK] = (nfsd4_dec)nfsd4_decode_seek,
[OP_WRITE_SAME] = (nfsd4_dec)nfsd4_decode_notsupp,
@@ -4257,6 +4264,22 @@ nfsd4_encode_copy(struct nfsd4_compoundres *resp, __be32 nfserr,
}
static __be32
+nfsd4_encode_offload_status(struct nfsd4_compoundres *resp, __be32 nfserr,
+ struct nfsd4_offload_status *os)
+{
+ struct xdr_stream *xdr = &resp->xdr;
+ __be32 *p;
+
+ p = xdr_reserve_space(xdr, 8 + 4);
+ if (!p)
+ return nfserr_resource;
+ p = xdr_encode_hyper(p, os->count);
+ *p++ = cpu_to_be32(0);
+
+ return nfserr;
+}
+
+static __be32
nfsd4_encode_seek(struct nfsd4_compoundres *resp, __be32 nfserr,
struct nfsd4_seek *seek)
{
@@ -4359,7 +4382,7 @@ static const nfsd4_enc nfsd4_enc_ops[] = {
[OP_LAYOUTERROR] = (nfsd4_enc)nfsd4_encode_noop,
[OP_LAYOUTSTATS] = (nfsd4_enc)nfsd4_encode_noop,
[OP_OFFLOAD_CANCEL] = (nfsd4_enc)nfsd4_encode_noop,
- [OP_OFFLOAD_STATUS] = (nfsd4_enc)nfsd4_encode_noop,
+ [OP_OFFLOAD_STATUS] = (nfsd4_enc)nfsd4_encode_offload_status,
[OP_READ_PLUS] = (nfsd4_enc)nfsd4_encode_noop,
[OP_SEEK] = (nfsd4_enc)nfsd4_encode_seek,
[OP_WRITE_SAME] = (nfsd4_enc)nfsd4_encode_noop,
diff --git a/fs/nfsd/xdr4.h b/fs/nfsd/xdr4.h
index b7c34f4a1222..06cf218944c5 100644
--- a/fs/nfsd/xdr4.h
+++ b/fs/nfsd/xdr4.h
@@ -545,6 +545,15 @@ struct nfsd4_seek {
loff_t seek_pos;
};
+struct nfsd4_offload_status {
+ /* request */
+ stateid_t stateid;
+
+ /* response */
+ u64 count;
+ u32 status;
+};
+
struct nfsd4_op {
int opnum;
const struct nfsd4_operation * opdesc;
@@ -603,6 +612,7 @@ struct nfsd4_op {
struct nfsd4_fallocate deallocate;
struct nfsd4_clone clone;
struct nfsd4_copy copy;
+ struct nfsd4_offload_status offload_status;
struct nfsd4_seek seek;
} u;
struct nfs4_replay * replay;