btrfs: add more __cold annotations
The __cold functions are placed to a special section, as they're
expected to be called rarely. This could help i-cache prefetches or help
compiler to decide which branches are more/less likely to be taken
without any other annotations needed.
Though we can't add more __exit annotations, it's still possible to add
__cold (that's also added with __exit). That way the following function
categories are tagged:
- printf wrappers, error messages
- exit helpers
Signed-off-by: David Sterba <dsterba@suse.com>
diff --git a/fs/btrfs/ordered-data.h b/fs/btrfs/ordered-data.h
index c53e2cf..4a1672a 100644
--- a/fs/btrfs/ordered-data.h
+++ b/fs/btrfs/ordered-data.h
@@ -217,5 +217,5 @@ void btrfs_wait_logged_extents(struct btrfs_trans_handle *trans,
struct btrfs_root *log, u64 transid);
void btrfs_free_logged_extents(struct btrfs_root *log, u64 transid);
int __init ordered_data_init(void);
-void ordered_data_exit(void);
+void __cold ordered_data_exit(void);
#endif