NFS: Use unsigned intermediates for manipulating header lengths (NFSv2 XDR)

[mv-sheeva.git] / fs / nfs / nfs2xdr.c

diff --git a/fs/nfs/nfs2xdr.c b/fs/nfs/nfs2xdr.c
index c5fce756720060e4dbd2b61b8123d35000cc43ff..1f7ea675e0c5e9489d8316b60969d159f386d8ab 100644 (file)
--- a/fs/nfs/nfs2xdr.c
+++ b/fs/nfs/nfs2xdr.c
@@ -251,6 +251,7 @@ nfs_xdr_readargs(struct rpc_rqst *req, __be32 *p, struct nfs_readargs *args)
        replen = (RPC_REPHDRSIZE + auth->au_rslack + NFS_readres_sz) << 2;
        xdr_inline_pages(&req->rq_rcv_buf, replen,
                         args->pages, args->pgbase, count);
+       req->rq_rcv_buf.flags |= XDRBUF_READ;
        return 0;
 }
 
@@ -261,7 +262,9 @@ static int
 nfs_xdr_readres(struct rpc_rqst *req, __be32 *p, struct nfs_readres *res)
 {
        struct kvec *iov = req->rq_rcv_buf.head;
-       int     status, count, recvd, hdrlen;
+       size_t hdrlen;
+       u32 count, recvd;
+       int status;
 
        if ((status = ntohl(*p++)))
                return -nfs_stat_to_errno(status);
@@ -271,8 +274,8 @@ nfs_xdr_readres(struct rpc_rqst *req, __be32 *p, struct nfs_readres *res)
        res->eof = 0;
        hdrlen = (u8 *) p - (u8 *) iov->iov_base;
        if (iov->iov_len < hdrlen) {
-               printk(KERN_WARNING "NFS: READ reply header overflowed:"
-                               "length %d > %Zu\n", hdrlen, iov->iov_len);
+               dprintk("NFS: READ reply header overflowed:"
+                               "length %Zu > %Zu\n", hdrlen, iov->iov_len);
                return -errno_NFSERR_IO;
        } else if (iov->iov_len != hdrlen) {
                dprintk("NFS: READ header is short. iovec will be shifted.\n");
@@ -281,12 +284,12 @@ nfs_xdr_readres(struct rpc_rqst *req, __be32 *p, struct nfs_readres *res)
 
        recvd = req->rq_rcv_buf.len - hdrlen;
        if (count > recvd) {
-               printk(KERN_WARNING "NFS: server cheating in read reply: "
-                       "count %d > recvd %d\n", count, recvd);
+               dprintk("NFS: server cheating in read reply: "
+                       "count %u > recvd %u\n", count, recvd);
                count = recvd;
        }
 
-       dprintk("RPC:      readres OK count %d\n", count);
+       dprintk("RPC:      readres OK count %u\n", count);
        if (count < res->count)
                res->count = count;
 
@@ -313,6 +316,7 @@ nfs_xdr_writeargs(struct rpc_rqst *req, __be32 *p, struct nfs_writeargs *args)
 
        /* Copy the page array */
        xdr_encode_pages(sndbuf, args->pages, args->pgbase, count);
+       sndbuf->flags |= XDRBUF_WRITE;
        return 0;
 }
 
@@ -421,9 +425,10 @@ nfs_xdr_readdirres(struct rpc_rqst *req, __be32 *p, void *dummy)
        struct xdr_buf *rcvbuf = &req->rq_rcv_buf;
        struct kvec *iov = rcvbuf->head;
        struct page **page;
-       int hdrlen, recvd;
+       size_t hdrlen;
+       unsigned int pglen, recvd;
+       u32 len;
        int status, nr;
-       unsigned int len, pglen;
        __be32 *end, *entry, *kaddr;
 
        if ((status = ntohl(*p++)))
@@ -431,8 +436,8 @@ nfs_xdr_readdirres(struct rpc_rqst *req, __be32 *p, void *dummy)
 
        hdrlen = (u8 *) p - (u8 *) iov->iov_base;
        if (iov->iov_len < hdrlen) {
-               printk(KERN_WARNING "NFS: READDIR reply header overflowed:"
-                               "length %d > %Zu\n", hdrlen, iov->iov_len);
+               dprintk("NFS: READDIR reply header overflowed:"
+                               "length %Zu > %Zu\n", hdrlen, iov->iov_len);
                return -errno_NFSERR_IO;
        } else if (iov->iov_len != hdrlen) {
                dprintk("NFS: READDIR header is short. iovec will be shifted.\n");
@@ -454,7 +459,7 @@ nfs_xdr_readdirres(struct rpc_rqst *req, __be32 *p, void *dummy)
                len = ntohl(*p++);
                p += XDR_QUADLEN(len) + 1;      /* name plus cookie */
                if (len > NFS2_MAXNAMLEN) {
-                       printk(KERN_WARNING "NFS: giant filename in readdir (len 0x%x)!\n",
+                       dprintk("NFS: giant filename in readdir (len 0x%x)!\n",
                                                len);
                        goto err_unmap;
                }
@@ -471,7 +476,7 @@ nfs_xdr_readdirres(struct rpc_rqst *req, __be32 *p, void *dummy)
        entry[0] = entry[1] = 0;
        /* truncate listing ? */
        if (!nr) {
-               printk(KERN_NOTICE "NFS: readdir reply truncated!\n");
+               dprintk("NFS: readdir reply truncated!\n");
                entry[1] = 1;
        }
        goto out;
@@ -574,7 +579,8 @@ nfs_xdr_readlinkres(struct rpc_rqst *req, __be32 *p, void *dummy)
 {
        struct xdr_buf *rcvbuf = &req->rq_rcv_buf;
        struct kvec *iov = rcvbuf->head;
-       int hdrlen, len, recvd;
+       size_t hdrlen;
+       u32 len, recvd;
        char    *kaddr;
        int     status;
 
@@ -582,14 +588,14 @@ nfs_xdr_readlinkres(struct rpc_rqst *req, __be32 *p, void *dummy)
                return -nfs_stat_to_errno(status);
        /* Convert length of symlink */
        len = ntohl(*p++);
-       if (len >= rcvbuf->page_len || len <= 0) {
-               dprintk(KERN_WARNING "nfs: server returned giant symlink!\n");
+       if (len >= rcvbuf->page_len) {
+               dprintk("nfs: server returned giant symlink!\n");
                return -ENAMETOOLONG;
        }
        hdrlen = (u8 *) p - (u8 *) iov->iov_base;
        if (iov->iov_len < hdrlen) {
-               printk(KERN_WARNING "NFS: READLINK reply header overflowed:"
-                               "length %d > %Zu\n", hdrlen, iov->iov_len);
+               dprintk("NFS: READLINK reply header overflowed:"
+                               "length %Zu > %Zu\n", hdrlen, iov->iov_len);
                return -errno_NFSERR_IO;
        } else if (iov->iov_len != hdrlen) {
                dprintk("NFS: READLINK header is short. iovec will be shifted.\n");
@@ -597,7 +603,7 @@ nfs_xdr_readlinkres(struct rpc_rqst *req, __be32 *p, void *dummy)
        }
        recvd = req->rq_rcv_buf.len - hdrlen;
        if (recvd < len) {
-               printk(KERN_WARNING "NFS: server cheating in readlink reply: "
+               dprintk("NFS: server cheating in readlink reply: "
                                "count %u > recvd %u\n", len, recvd);
                return -EIO;
        }
@@ -695,7 +701,7 @@ nfs_stat_to_errno(int stat)
                if (nfs_errtbl[i].stat == stat)
                        return nfs_errtbl[i].errno;
        }
-       printk(KERN_ERR "nfs_stat_to_errno: bad nfs status return value: %d\n", stat);
+       dprintk("nfs_stat_to_errno: bad nfs status return value: %d\n", stat);
        return nfs_errtbl[i].errno;
 }