POSIX/FreeBSD/NetBSD/Linux/etc agree -- blk[size|cnt]_t is the bomb.

So add the types blksize_t (a.k.a. int32_t) and blkcnt_t (a.k.a.
int64_t). Use blkcnt_t in stat.h since the base type (int64_t) does
not change. blksize_t in stat.h will follow after the tree is audited
for signed issues, since the base type will change from u_int32_t
to a POSIX compliant int32_t.

Guidance and feedback from guenther@

ok millert@

4 files changed, 11 insertions, 7 deletions

diff --git a/lib/libc/sys/stat.2 b/lib/libc/sys/stat.2
index bdbb2576d05..428086c3848 100644
--- a/lib/libc/sys/stat.2
+++ b/lib/libc/sys/stat.2
@@ -1,4 +1,4 @@
-.\"	$OpenBSD: stat.2,v 1.40 2014/02/13 07:30:39 guenther Exp $
+.\"	$OpenBSD: stat.2,v 1.41 2014/08/22 23:05:15 krw Exp $
 .\"
 .\" Copyright (c) 1980, 1991, 1993, 1994
 .\"	The Regents of the University of California.  All rights reserved.
@@ -29,7 +29,7 @@
 .\"
 .\"     @(#)stat.2	8.3 (Berkeley) 4/19/94
 .\"
-.Dd $Mdocdate: February 13 2014 $
+.Dd $Mdocdate: August 22 2014 $
 .Dt STAT 2
 .Os
 .Sh NAME
@@ -141,7 +141,7 @@ struct stat {
     struct timespec st_mtim;  /* time of last data modification */
     struct timespec st_ctim;  /* time of last file status change */
     off_t      st_size;   /* file size, in bytes */
-    int64_t    st_blocks; /* blocks allocated for file */
+    blkcnt_t   st_blocks; /* blocks allocated for file */
     u_int32_t  st_blksize;/* optimal blocksize for I/O */
     u_int32_t  st_flags;  /* user defined flags for file */
     u_int32_t  st_gen;    /* file generation number */
diff --git a/sys/sys/_types.h b/sys/sys/_types.h
index ba924d9f084..e05867429cd 100644
--- a/sys/sys/_types.h
+++ b/sys/sys/_types.h
@@ -1,4 +1,4 @@
-/*	$OpenBSD: _types.h,v 1.8 2013/10/24 07:34:56 guenther Exp $	*/
+/*	$OpenBSD: _types.h,v 1.9 2014/08/22 23:05:15 krw Exp $	*/
 
 /*-
  * Copyright (c) 1990, 1993
@@ -36,6 +36,8 @@
 
 #include <machine/_types.h>
 
+typedef __int64_t	__blkcnt_t;	/* blocks allocated for file */
+typedef __int32_t	__blksize_t;	/* optimal blocksize for I/O */
 typedef	__int64_t	__clock_t;	/* ticks in CLOCKS_PER_SEC */
 typedef	__int32_t	__clockid_t;	/* CLOCK_* identifiers */
 typedef	unsigned long	__cpuid_t;	/* CPU id */
diff --git a/sys/sys/stat.h b/sys/sys/stat.h
index c50860e2e9f..fc8b6393efc 100644
--- a/sys/sys/stat.h
+++ b/sys/sys/stat.h
@@ -1,4 +1,4 @@
-/*	$OpenBSD: stat.h,v 1.24 2013/09/14 01:35:02 guenther Exp $	*/
+/*	$OpenBSD: stat.h,v 1.25 2014/08/22 23:05:15 krw Exp $	*/
 /*	$NetBSD: stat.h,v 1.20 1996/05/16 22:17:49 cgd Exp $	*/
 
 /*-
@@ -63,7 +63,7 @@ struct stat {
 	long	  st_ctimensec;		/* nsec of last file status change */
 #endif /* __POSIX_VISIBLE >= 200809 || __BSD_VISIBLE */
 	off_t	  st_size;		/* file size, in bytes */
-	int64_t	  st_blocks;		/* blocks allocated for file */
+	blkcnt_t  st_blocks;		/* blocks allocated for file */
 	u_int32_t st_blksize;		/* optimal blocksize for I/O */
 	u_int32_t st_flags;		/* user defined flags for file */
 	u_int32_t st_gen;		/* file generation number */
diff --git a/sys/sys/types.h b/sys/sys/types.h
index a2e9962693e..d686c36c49a 100644
--- a/sys/sys/types.h
+++ b/sys/sys/types.h
@@ -1,4 +1,4 @@
-/*	$OpenBSD: types.h,v 1.41 2014/07/12 16:25:08 guenther Exp $	*/
+/*	$OpenBSD: types.h,v 1.42 2014/08/22 23:05:15 krw Exp $	*/
 /*	$NetBSD: types.h,v 1.29 1996/11/15 22:48:25 jtc Exp $	*/
 
 /*-
@@ -130,6 +130,8 @@ typedef __psize_t	psize_t;
 #endif /* __BSD_VISIBLE */
 
 /* Standard system types */
+typedef __blkcnt_t	blkcnt_t;	/* blocks allocated for file */
+typedef __blksize_t	blksize_t;	/* optimal blocksize for I/O */
 typedef	char *		caddr_t;	/* core address */
 typedef	__int32_t	daddr32_t;	/* 32-bit disk address */
 typedef	__int64_t	daddr_t;	/* 64-bit disk address */