libxfs: fix xfs_extent_busy_flush macro definition
xfs_extent_busy_flush is a void function, so don't reduce it to zero.
This shuts up gcc warnings about do-nothing statements.
[sandeen: switch to more common ((void)0) paradigm]
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Eric Sandeen <sandeen@redhat.com>
Signed-off-by: Eric Sandeen <sandeen@sandeen.net>
diff --git a/libxfs/libxfs_priv.h b/libxfs/libxfs_priv.h
index c2d4494..23875e5 100644
--- a/libxfs/libxfs_priv.h
+++ b/libxfs/libxfs_priv.h
@@ -419,7 +419,7 @@
*(busy_gen) = __foo; \
false; \
})
-#define xfs_extent_busy_flush(mp,pag,busy_gen) (0)
+#define xfs_extent_busy_flush(mp,pag,busy_gen) ((void)(0))
/* avoid unused variable warning */
#define xfs_alloc_busy_insert(tp,ag,b,len) ({ \
