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authorTrond Myklebust <Trond.Myklebust@netapp.com>2012-04-29 00:05:03 +0400
committerTrond Myklebust <Trond.Myklebust@netapp.com>2012-05-01 23:42:40 +0400
commite144cbcc251f16c1a14b9256cda73ab4aebe933a (patch)
tree4ca37ff9816b9b38277a881429176b804422fe21
parent9e907fec6ef7705ba07e22f034dacf102d29a538 (diff)
downloadlinux-e144cbcc251f16c1a14b9256cda73ab4aebe933a.tar.xz
NFSv4: Retrieve attributes _before_ calling delegreturn
In order to retrieve cache consistency attributes before anyone else has a chance to change the inode, we need to put the GETATTR op _before_ the DELEGRETURN op. We can then use that as part of a 'nfs_post_op_update_inode_force_wcc()' call, to ensure that we update the attributes without clearing our cached data. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
-rw-r--r--fs/nfs/nfs4proc.c7
-rw-r--r--fs/nfs/nfs4xdr.c6
2 files changed, 7 insertions, 6 deletions
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index 111a3cc657c1..2e0fbff37d1f 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -4138,9 +4138,10 @@ static int _nfs4_proc_delegreturn(struct inode *inode, struct rpc_cred *cred, co
if (status != 0)
goto out;
status = data->rpc_status;
- if (status != 0)
- goto out;
- nfs_refresh_inode(inode, &data->fattr);
+ if (status == 0)
+ nfs_post_op_update_inode_force_wcc(inode, &data->fattr);
+ else
+ nfs_refresh_inode(inode, &data->fattr);
out:
rpc_put_task(task);
return status;
diff --git a/fs/nfs/nfs4xdr.c b/fs/nfs/nfs4xdr.c
index fe6142417dd9..ac7a3b014d99 100644
--- a/fs/nfs/nfs4xdr.c
+++ b/fs/nfs/nfs4xdr.c
@@ -2602,8 +2602,8 @@ static void nfs4_xdr_enc_delegreturn(struct rpc_rqst *req,
encode_compound_hdr(xdr, req, &hdr);
encode_sequence(xdr, &args->seq_args, &hdr);
encode_putfh(xdr, args->fhandle, &hdr);
- encode_delegreturn(xdr, args->stateid, &hdr);
encode_getfattr(xdr, args->bitmask, &hdr);
+ encode_delegreturn(xdr, args->stateid, &hdr);
encode_nops(&hdr);
}
@@ -6527,10 +6527,10 @@ static int nfs4_xdr_dec_delegreturn(struct rpc_rqst *rqstp,
status = decode_putfh(xdr);
if (status != 0)
goto out;
- status = decode_delegreturn(xdr);
+ status = decode_getfattr(xdr, res->fattr, res->server);
if (status != 0)
goto out;
- decode_getfattr(xdr, res->fattr, res->server);
+ status = decode_delegreturn(xdr);
out:
return status;
}