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authorChuck Lever2010-12-14 14:58:01 +0000
committerTrond Myklebust2010-12-16 12:37:24 -0500
commit8111f373600cd43b3198b48b9238e3ad2fd9908d (patch)
tree5f4c1751405da033a1987de47b90598f08f3b6c6
parentd8367c504e39528a057a5d7a267b6724f7fdb4b8 (diff)
NFS: Fix hdrlen calculation in NFSv4's decode_read()
When computing the length of the header, be sure to include the four octets consumed by "count". Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Tested-by: J. Bruce Fields <bfields@redhat.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
-rw-r--r--fs/nfs/nfs4xdr.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/nfs/nfs4xdr.c b/fs/nfs/nfs4xdr.c
index a48a43c75111..868815c55450 100644
--- a/fs/nfs/nfs4xdr.c
+++ b/fs/nfs/nfs4xdr.c
@@ -4475,7 +4475,7 @@ static int decode_read(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs_
goto out_overflow;
eof = be32_to_cpup(p++);
count = be32_to_cpup(p);
- hdrlen = (u8 *) p - (u8 *) iov->iov_base;
+ hdrlen = (u8 *) xdr->p - (u8 *) iov->iov_base;
recvd = req->rq_rcv_buf.len - hdrlen;
if (count > recvd) {
dprintk("NFS: server cheating in read reply: "