ceph: print dentry offset in hex and fix xattr_version type

In the debug logs about the di->offset or ctx->pos it is in hex
format, but some others are using the dec format. It is a little
hard to read.

For the xattr version, it is u64 type, using a shorter type may
truncate it.
Signed-off-by: Xiubo Li <xiubli@redhat.com>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>

fs/ceph/dir.c

@@ -1186,7 +1186,7 @@ void __ceph_dentry_dir_lease_touch(struct ceph_dentry_info *di)
 	struct dentry *dn = di->dentry;
 	struct ceph_mds_client *mdsc;
 
-	dout("dentry_dir_lease_touch %p %p '%pd' (offset %lld)\n",
+	dout("dentry_dir_lease_touch %p %p '%pd' (offset 0x%llx)\n",
 	     di, dn, dn, di->offset);
 
 	if (!list_empty(&di->lease_list)) {
@@ -1567,7 +1567,7 @@ static int ceph_d_revalidate(struct dentry *dentry, unsigned int flags)
 		inode = d_inode(dentry);
 	}
 
-	dout("d_revalidate %p '%pd' inode %p offset %lld\n", dentry,
+	dout("d_revalidate %p '%pd' inode %p offset 0x%llx\n", dentry,
 	     dentry, inode, ceph_dentry(dentry)->offset);
 
 	/* always trust cached snapped dentries, snapdir dentry */

fs/ceph/xattr.c

@@ -655,7 +655,7 @@ static int __build_xattrs(struct inode *inode)
 	u32 len;
 	const char *name, *val;
 	struct ceph_inode_info *ci = ceph_inode(inode);
-	int xattr_version;
+	u64 xattr_version;
 	struct ceph_inode_xattr **xattrs = NULL;
 	int err = 0;
 	int i;