Support only one source server address: the same address that
the client and source server use.
Signed-off-by: Andy Adamson <andros@xxxxxxxxxx>
Signed-off-by: Olga Kornievskaia <kolga@xxxxxxxxxx>
---
fs/nfs/nfs42.h | 3 ++-
fs/nfs/nfs42proc.c | 26 +++++++++++++++++---------
fs/nfs/nfs42xdr.c | 19 +++++++++++++++++--
fs/nfs/nfs4file.c | 7 ++++++-
include/linux/nfs_xdr.h | 1 +
5 files changed, 43 insertions(+), 13 deletions(-)
diff --git a/fs/nfs/nfs42.h b/fs/nfs/nfs42.h
index a0d6d45..6bf5775 100644
--- a/fs/nfs/nfs42.h
+++ b/fs/nfs/nfs42.h
@@ -14,7 +14,8 @@
/* nfs4.2proc.c */
#if defined(CONFIG_NFS_V4_2)
int nfs42_proc_allocate(struct file *, loff_t, loff_t);
-ssize_t nfs42_proc_copy(struct file *, loff_t, struct file *, loff_t, size_t);
+ssize_t nfs42_proc_copy(struct file *, loff_t, struct file *, loff_t, size_t,
+ struct nl4_servers *, nfs4_stateid *);
int nfs42_proc_deallocate(struct file *, loff_t, loff_t);
loff_t nfs42_proc_llseek(struct file *, loff_t, int);
int nfs42_proc_layoutstats_generic(struct nfs_server *,
diff --git a/fs/nfs/nfs42proc.c b/fs/nfs/nfs42proc.c
index d133533..36b265a 100644
--- a/fs/nfs/nfs42proc.c
+++ b/fs/nfs/nfs42proc.c
@@ -219,7 +219,9 @@ static ssize_t _nfs42_proc_copy(struct file *src,
struct file *dst,
struct nfs_lock_context *dst_lock,
struct nfs42_copy_args *args,
- struct nfs42_copy_res *res)
+ struct nfs42_copy_res *res,
+ struct nl4_servers *nss,
+ nfs4_stateid *cnr_stateid)
{
struct rpc_message msg = {
.rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_COPY],
@@ -233,11 +235,15 @@ static ssize_t _nfs42_proc_copy(struct file *src,
size_t count = args->count;
ssize_t status;
- status = nfs4_set_rw_stateid(&args->src_stateid, src_lock->open_context,
- src_lock, FMODE_READ);
- if (status)
- return status;
-
+ if (nss) {
+ args->cp_src = nss;
+ nfs4_stateid_copy(&args->src_stateid, cnr_stateid);
+ } else {
+ status = nfs4_set_rw_stateid(&args->src_stateid,
+ src_lock->open_context, src_lock, FMODE_READ);
+ if (status)
+ return status;
+ }
status = nfs_filemap_write_and_wait_range(file_inode(src)->i_mapping,
pos_src, pos_src + (loff_t)count - 1);
if (status)
@@ -292,8 +298,9 @@ static ssize_t _nfs42_proc_copy(struct file *src,
}
ssize_t nfs42_proc_copy(struct file *src, loff_t pos_src,
- struct file *dst, loff_t pos_dst,
- size_t count)
+ struct file *dst, loff_t pos_dst, size_t count,
+ struct nl4_servers *nss,
+ nfs4_stateid *cnr_stateid)
{
struct nfs_server *server = NFS_SERVER(file_inode(dst));
struct nfs_lock_context *src_lock;
@@ -338,7 +345,8 @@ ssize_t nfs42_proc_copy(struct file *src, loff_t pos_src,
inode_lock(file_inode(dst));
err = _nfs42_proc_copy(src, src_lock,
dst, dst_lock,
- &args, &res);
+ &args, &res,
+ nss, cnr_stateid);
inode_unlock(file_inode(dst));
switch (err) {
case -NFS4ERR_OFFLOAD_NO_REQS:
diff --git a/fs/nfs/nfs42xdr.c b/fs/nfs/nfs42xdr.c
index ae84bae..68ba3cc 100644
--- a/fs/nfs/nfs42xdr.c
+++ b/fs/nfs/nfs42xdr.c
@@ -20,7 +20,10 @@
#define encode_copy_maxsz (op_encode_hdr_maxsz + \
XDR_QUADLEN(NFS4_STATEID_SIZE) + \
XDR_QUADLEN(NFS4_STATEID_SIZE) + \
- 2 + 2 + 2 + 1 + 1 + 1)
+ 2 + 2 + 2 + 1 + 1 + 1 +\
+ 1 + /* One cnr_source_server */\
+ 1 + /* nl4_type */ \
+ 1 + XDR_QUADLEN(NFS4_OPAQUE_LIMIT))
#define decode_copy_maxsz (op_decode_hdr_maxsz + \
NFS42_WRITE_RES_SIZE + \
1 /* cr_consecutive */ + \
@@ -186,6 +189,9 @@ static void encode_copy(struct xdr_stream *xdr,
struct nfs42_copy_args *args,
struct compound_hdr *hdr)
{
+ struct nl4_server *ns;
+ int i;
+
encode_op_hdr(xdr, OP_COPY, decode_copy_maxsz, hdr);
encode_nfs4_stateid(xdr, &args->src_stateid);
encode_nfs4_stateid(xdr, &args->dst_stateid);
@@ -196,7 +202,16 @@ static void encode_copy(struct xdr_stream *xdr,
encode_uint32(xdr, 1); /* consecutive = true */
encode_uint32(xdr, args->sync);
- encode_uint32(xdr, 0); /* src server list */
+ if (args->cp_src == NULL) { /* intra-ssc */
+ encode_uint32(xdr, 0); /* no src server list */
+ return;
+ }
+ encode_uint32(xdr, args->cp_src->nl_nsvr);
+ ns = args->cp_src->nl_svr;
+ for (i = 0; i < args->cp_src->nl_nsvr; i++) {
+ encode_nl4_server(xdr, args->cp_src->nl_svr);
+ ns++;
+ }
}
static void encode_offload_status(struct xdr_stream *xdr,
diff --git a/fs/nfs/nfs4file.c b/fs/nfs/nfs4file.c
index b7b8c47..0e15a6d 100644
--- a/fs/nfs/nfs4file.c
+++ b/fs/nfs/nfs4file.c
@@ -134,6 +134,8 @@ static ssize_t nfs4_copy_file_range(struct file *file_in, loff_t pos_in,
size_t count, unsigned int flags)
{
struct nfs42_copy_notify_res *cn_resp = NULL;
+ struct nl4_servers *nss = NULL;
+ nfs4_stateid *cnrs = NULL;
ssize_t ret;
if (file_inode(file_in) == file_inode(file_out))
@@ -159,8 +161,11 @@ static ssize_t nfs4_copy_file_range(struct file *file_in, loff_t pos_in,
ret = nfs42_proc_copy_notify(file_in, file_out, cn_resp);
if (ret)
goto out;
+ nss = &cn_resp->cnr_src;
+ cnrs = &cn_resp->cnr_stateid;
}
- ret = nfs42_proc_copy(file_in, pos_in, file_out, pos_out, count);
+ ret = nfs42_proc_copy(file_in, pos_in, file_out, pos_out, count, nss,
+ cnrs);
out:
if (cn_resp) {
diff --git a/include/linux/nfs_xdr.h b/include/linux/nfs_xdr.h
index 300289b..658aaff 100644
--- a/include/linux/nfs_xdr.h
+++ b/include/linux/nfs_xdr.h
@@ -1372,6 +1372,7 @@ struct nfs42_copy_args {
u64 count;
bool sync;
+ struct nl4_servers *cp_src;
};
struct nfs42_write_res {
--
1.8.3.1
--
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