NFSv4: Simplify the NFSv4 CREATE compound

Get rid of the post-op GETATTR on the directory in order to reduce
the amount of processing done on the server.

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>

2 files changed, 1 insertions, 22 deletions

diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index f01c3d1b54b7..619bc1eb157b 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -2994,7 +2994,6 @@ struct nfs4_createdata {
         struct nfs4_create_res res;
         struct nfs_fh fh;
         struct nfs_fattr fattr;
-        struct nfs_fattr dir_fattr;
 };
 
 static struct nfs4_createdata *nfs4_alloc_createdata(struct inode *dir,
@@ -3018,9 +3017,7 @@ static struct nfs4_createdata *nfs4_alloc_createdata(struct inode *dir,
                 data->res.server = server;
                 data->res.fh = &data->fh;
                 data->res.fattr = &data->fattr;
-                data->res.dir_fattr = &data->dir_fattr;
                 nfs_fattr_init(data->res.fattr);
-                nfs_fattr_init(data->res.dir_fattr);
         }
         return data;
 }
@@ -3031,7 +3028,6 @@ static int nfs4_do_create(struct inode *dir, struct dentry *dentry, struct nfs4_
                                     &data->arg.seq_args, &data->res.seq_res, 1);
         if (status == 0) {
                 update_changeattr(dir, &data->res.dir_cinfo);
-                nfs_post_op_update_inode(dir, data->res.dir_fattr);
                 status = nfs_instantiate(dentry, data->res.fh, data->res.fattr);
         }
         return status;
diff --git a/fs/nfs/nfs4xdr.c b/fs/nfs/nfs4xdr.c
index 6e878dcc0d2d..1a70097a8dc7 100644
--- a/fs/nfs/nfs4xdr.c
+++ b/fs/nfs/nfs4xdr.c
@@ -647,20 +647,14 @@ static int nfs4_stat_to_errno(int);
 #define NFS4_enc_create_sz      (compound_encode_hdr_maxsz + \
                                 encode_sequence_maxsz + \
                                 encode_putfh_maxsz + \
-                                encode_savefh_maxsz + \
                                 encode_create_maxsz + \
                                 encode_getfh_maxsz + \
-                                encode_getattr_maxsz + \
-                                encode_restorefh_maxsz + \
                                 encode_getattr_maxsz)
 #define NFS4_dec_create_sz      (compound_decode_hdr_maxsz + \
                                 decode_sequence_maxsz + \
                                 decode_putfh_maxsz + \
-                                decode_savefh_maxsz + \
                                 decode_create_maxsz + \
                                 decode_getfh_maxsz + \
-                                decode_getattr_maxsz + \
-                                decode_restorefh_maxsz + \
                                 decode_getattr_maxsz)
 #define NFS4_enc_pathconf_sz    (compound_encode_hdr_maxsz + \
                                 encode_sequence_maxsz + \
@@ -2119,12 +2113,9 @@ static void nfs4_xdr_enc_create(struct rpc_rqst *req, struct xdr_stream *xdr,
         encode_compound_hdr(xdr, req, &hdr);
         encode_sequence(xdr, &args->seq_args, &hdr);
         encode_putfh(xdr, args->dir_fh, &hdr);
-        encode_savefh(xdr, &hdr);
         encode_create(xdr, args, &hdr);
         encode_getfh(xdr, &hdr);
         encode_getfattr(xdr, args->bitmask, &hdr);
-        encode_restorefh(xdr, &hdr);
-        encode_getfattr(xdr, args->bitmask, &hdr);
         encode_nops(&hdr);
 }
 
@@ -5895,21 +5886,13 @@ static int nfs4_xdr_dec_create(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
         status = decode_putfh(xdr);
         if (status)
                 goto out;
-        status = decode_savefh(xdr);
-        if (status)
-                goto out;
         status = decode_create(xdr, &res->dir_cinfo);
         if (status)
                 goto out;
         status = decode_getfh(xdr, res->fh);
         if (status)
                 goto out;
-        if (decode_getfattr(xdr, res->fattr, res->server))
-                goto out;
-        status = decode_restorefh(xdr);
-        if (status)
-                goto out;
-        decode_getfattr(xdr, res->dir_fattr, res->server);
+        decode_getfattr(xdr, res->fattr, res->server);
 out:
         return status;
 }