NFS: Fix more NFS debug related build warnings

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

fs/nfs/blocklayout/blocklayout.c

@@ -233,12 +233,11 @@ bl_read_pagelist(struct nfs_read_data *rdata)
 	sector_t isect, extent_length = 0;
 	struct parallel_io *par;
 	loff_t f_offset = rdata->args.offset;
-	size_t count = rdata->args.count;
 	struct page **pages = rdata->args.pages;
 	int pg_index = rdata->args.pgbase >> PAGE_CACHE_SHIFT;
 
-	dprintk("%s enter nr_pages %u offset %lld count %Zd\n", __func__,
-	       rdata->npages, f_offset, count);
+	dprintk("%s enter nr_pages %u offset %lld count %u\n", __func__,
+	       rdata->npages, f_offset, (unsigned int)rdata->args.count);
 
 	par = alloc_parallel(rdata);
 	if (!par)

fs/nfs/fscache.c

@@ -327,7 +327,7 @@ void nfs_fscache_reset_inode_cookie(struct inode *inode)
 {
 	struct nfs_inode *nfsi = NFS_I(inode);
 	struct nfs_server *nfss = NFS_SERVER(inode);
-	struct fscache_cookie *old = nfsi->fscache;
+	NFS_IFDEBUG(struct fscache_cookie *old = nfsi->fscache);
 
 	nfs_fscache_inode_lock(inode);
 	if (nfsi->fscache) {

fs/nfs/pnfs.h

@@ -228,7 +228,6 @@ struct nfs4_deviceid_node {
 	atomic_t			ref;
 };
 
-void nfs4_print_deviceid(const struct nfs4_deviceid *dev_id);
 struct nfs4_deviceid_node *nfs4_find_get_deviceid(const struct pnfs_layoutdriver_type *, const struct nfs_client *, const struct nfs4_deviceid *);
 void nfs4_delete_deviceid(const struct pnfs_layoutdriver_type *, const struct nfs_client *, const struct nfs4_deviceid *);
 void nfs4_init_deviceid_node(struct nfs4_deviceid_node *,
@@ -328,6 +327,13 @@ static inline int pnfs_return_layout(struct inode *ino)
 	return 0;
 }
 
+#ifdef NFS_DEBUG
+void nfs4_print_deviceid(const struct nfs4_deviceid *dev_id);
+#else
+static inline void nfs4_print_deviceid(const struct nfs4_deviceid *dev_id)
+{
+}
+#endif /* NFS_DEBUG */
 #else  /* CONFIG_NFS_V4_1 */
 
 static inline void pnfs_destroy_all_layouts(struct nfs_client *clp)

fs/nfs/pnfs_dev.c

@@ -43,6 +43,7 @@
 static struct hlist_head nfs4_deviceid_cache[NFS4_DEVICE_ID_HASH_SIZE];
 static DEFINE_SPINLOCK(nfs4_deviceid_lock);
 
+#ifdef NFS_DEBUG
 void
 nfs4_print_deviceid(const struct nfs4_deviceid *id)
 {
@@ -52,6 +53,7 @@ nfs4_print_deviceid(const struct nfs4_deviceid *id)
 		p[0], p[1], p[2], p[3]);
 }
 EXPORT_SYMBOL_GPL(nfs4_print_deviceid);
+#endif
 
 static inline u32
 nfs4_deviceid_hash(const struct nfs4_deviceid *id)

include/linux/nfs_fs.h

@@ -661,8 +661,10 @@ nfs_fileid_to_ino_t(u64 fileid)
 # undef ifdebug
 # ifdef NFS_DEBUG
 #  define ifdebug(fac)		if (unlikely(nfs_debug & NFSDBG_##fac))
+#  define NFS_IFDEBUG(x)	x
 # else
 #  define ifdebug(fac)		if (0)
+#  define NFS_IFDEBUG(x)
 # endif
 #endif /* __KERNEL */