btrfs: tests: add table of most common errors

Allocation of main objects like fs_info or extent buffers is in each
test so let's simplify and unify the error messages to a table and add a
convenience helper.

Signed-off-by: David Sterba <dsterba@suse.com>

1 files changed, 14 insertions, 0 deletions

diff --git a/fs/btrfs/tests/btrfs-tests.h b/fs/btrfs/tests/btrfs-tests.h
index bb9e9c234535..ee277bbd939b 100644
--- a/fs/btrfs/tests/btrfs-tests.h
+++ b/fs/btrfs/tests/btrfs-tests.h
@@ -13,6 +13,20 @@ int btrfs_run_sanity_tests(void);
 #define test_err(fmt, ...) pr_err("BTRFS: selftest: %s:%d " fmt "\n",	\
 		__FILE__, __LINE__, ##__VA_ARGS__)
 
+#define test_std_err(index)	test_err("%s", test_error[index])
+
+enum {
+	TEST_ALLOC_FS_INFO,
+	TEST_ALLOC_ROOT,
+	TEST_ALLOC_EXTENT_BUFFER,
+	TEST_ALLOC_PATH,
+	TEST_ALLOC_INODE,
+	TEST_ALLOC_BLOCK_GROUP,
+	TEST_ALLOC_EXTENT_MAP,
+};
+
+extern const char *test_error[];
+
 struct btrfs_root;
 struct btrfs_trans_handle;