fix preprocessor idiocy in reiserfs

	#x blocks expansion of macro argument, but it won't do you any
good if it's already been expanded...  As it is, RFALSE(cond, ....)
ended up with stringified _expanded_ cond.  Real fun when cond contains
something like le32_to_cpu() and you are on a big-endian box...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 5 insertions, 3 deletions

diff --git a/include/linux/reiserfs_fs.h b/include/linux/reiserfs_fs.h
index 965d5b3ea9eb..180a9d832dde 100644
--- a/include/linux/reiserfs_fs.h
+++ b/include/linux/reiserfs_fs.h
@@ -81,14 +81,16 @@ void reiserfs_warning(struct super_block *s, const char *fmt, ...);
 /* assertions handling */
 
 /** always check a condition and panic if it's false. */
-#define RASSERT( cond, format, args... )                                        \
+#define __RASSERT( cond, scond, format, args... )                                       \
 if( !( cond ) )                                                                 \
-  reiserfs_panic( NULL, "reiserfs[%i]: assertion " #cond " failed at "  \
+  reiserfs_panic( NULL, "reiserfs[%i]: assertion " scond " failed at "  \
                   __FILE__ ":%i:%s: " format "\n",              \
                   in_interrupt() ? -1 : current -> pid, __LINE__ , __FUNCTION__ , ##args )
 
+#define RASSERT(cond, format, args...) __RASSERT(cond, #cond, format, ##args)
+
 #if defined( CONFIG_REISERFS_CHECK )
-#define RFALSE( cond, format, args... ) RASSERT( !( cond ), format, ##args )
+#define RFALSE(cond, format, args...) __RASSERT(!(cond), "!(" #cond ")", format, ##args)
 #else
 #define RFALSE( cond, format, args... ) do {;} while( 0 )
 #endif