From: Felix Janda <felix.janda@posteo.de>
Date: Tue, 1 Nov 2016 01:38:42 +0000 (+1100)
Subject: xfs.h: require transparent LFS for all users
X-Git-Tag: v4.9.0-rc1~10
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=7fda99a0c2970f7da2661118b438e64dec1751b4;p=thirdparty%2Fxfsprogs-dev.git

xfs.h: require transparent LFS for all users

Since our interfaces depend on the consistent use of a 64bit offset
type, force downstreams to use transparent LFS (_FILE_OFFSET_BITS=64),
so that it becomes impossible for them to use 32bit interfaces.

Signed-off-by: Felix Janda <felix.janda@posteo.de>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Dave Chinner <david@fromorbit.com>
---

diff --git a/include/xfs.h b/include/xfs.h
index c878b2470..e1d2c1cba 100644
--- a/include/xfs.h
+++ b/include/xfs.h
@@ -47,6 +47,11 @@
 # error unknown platform... have fun porting!
 #endif
 
+/*
+ * make sure that any user of the xfs headers has a 64bit off_t type
+ */
+extern int xfs_assert_largefile[sizeof(off_t)-8];
+
 /*
  * sparse kernel source annotations
  */