[PATCH v2 4/5] btrfs: introduce EXPORT_FOR_TESTS macro

[Johannes Thumshirn <jthumshirn@suse.de>]

Depending on whether CONFIG_BTRFS_FS_RUN_SANITY_TESTS is set, some BTRFS
functions are either local to the file they are implemented in and thus
should be declared static or are called from within the test implementation
defined in a different file.

Introduce an EXPORT_FOR_TESTS macro which depending on
CONFIG_BTRFS_FS_RUN_SANITY_TESTS either adds the 'static' keyword to a
function or not.

Signed-off-by: Johannes Thumshirn <jthumshirn@suse.de>
---
 fs/btrfs/ctree.h | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h
index e62824cae00a..5119dacab981 100644
--- a/fs/btrfs/ctree.h
+++ b/fs/btrfs/ctree.h
@@ -3471,6 +3471,12 @@ static inline void assfail(const char *expr, const char *file, int line)
 #define ASSERT(expr)	((void)0)
 #endif
 
+#ifndef CONFIG_BTRFS_FS_RUN_SANITY_TESTS
+#define EXPORT_FOR_TESTS static
+#else
+#define EXPORT_FOR_TESTS
+#endif
+
 __cold
 static inline void btrfs_print_v0_err(struct btrfs_fs_info *fs_info)
 {
-- 
2.16.4