nfs: use timespec64 in nfs_fattr

Push down the use of timespec64 into NFS nfs_fattr, to avoid needless
conversions, and get closer to having 64-bit time_t support on 32-bit
NFSv4 and removing some old interfaces from the kernel.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>

fs/nfs/internal.h

@@ -697,9 +697,9 @@ unsigned int nfs_page_array_len(unsigned int base, size_t len)
 }
 
 /*
- * Convert a struct timespec into a 64-bit change attribute
+ * Convert a struct timespec64 into a 64-bit change attribute
  *
- * This does approximately the same thing as timespec_to_ns(),
+ * This does approximately the same thing as timespec64_to_ns(),
  * but for calculation efficiency, we multiply the seconds by
  * 1024*1024*1024.
  */

fs/nfs/nfs4xdr.c

@@ -4097,7 +4097,7 @@ static int decode_attr_time_access(struct xdr_stream *xdr, uint32_t *bitmap, str
 			status = NFS_ATTR_FATTR_ATIME;
 		bitmap[1] &= ~FATTR4_WORD1_TIME_ACCESS;
 	}
-	dprintk("%s: atime=%ld\n", __func__, (long)time->tv_sec);
+	dprintk("%s: atime=%lld\n", __func__, time->tv_sec);
 	return status;
 }
 
@@ -4115,7 +4115,7 @@ static int decode_attr_time_metadata(struct xdr_stream *xdr, uint32_t *bitmap, s
 			status = NFS_ATTR_FATTR_CTIME;
 		bitmap[1] &= ~FATTR4_WORD1_TIME_METADATA;
 	}
-	dprintk("%s: ctime=%ld\n", __func__, (long)time->tv_sec);
+	dprintk("%s: ctime=%lld\n", __func__, time->tv_sec);
 	return status;
 }
 
@@ -4132,8 +4132,8 @@ static int decode_attr_time_delta(struct xdr_stream *xdr, uint32_t *bitmap,
 		status = decode_attr_time(xdr, time);
 		bitmap[1] &= ~FATTR4_WORD1_TIME_DELTA;
 	}
-	dprintk("%s: time_delta=%ld %ld\n", __func__, (long)time->tv_sec,
-		(long)time->tv_nsec);
+	dprintk("%s: time_delta=%lld %ld\n", __func__, time->tv_sec,
+		time->tv_nsec);
 	return status;
 }
 
@@ -4197,7 +4197,7 @@ static int decode_attr_time_modify(struct xdr_stream *xdr, uint32_t *bitmap, str
 			status = NFS_ATTR_FATTR_MTIME;
 		bitmap[1] &= ~FATTR4_WORD1_TIME_MODIFY;
 	}
-	dprintk("%s: mtime=%ld\n", __func__, (long)time->tv_sec);
+	dprintk("%s: mtime=%lld\n", __func__, time->tv_sec);
 	return status;
 }