We can use simple enum for values that are not part of on-disk format:
global filesystem states.
Signed-off-by: David Sterba <dsterba@xxxxxxxx>
---
fs/btrfs/ctree.h | 25 +++++++++++++++++++------
1 file changed, 19 insertions(+), 6 deletions(-)
diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h
index a98507fa9192..f82ec5e41b0c 100644
--- a/fs/btrfs/ctree.h
+++ b/fs/btrfs/ctree.h
@@ -109,13 +109,26 @@ static inline unsigned long btrfs_chunk_item_size(int num_stripes)
}
/*
- * File system states
+ * Runtime (in-memory) states of filesystem
*/
-#define BTRFS_FS_STATE_ERROR 0
-#define BTRFS_FS_STATE_REMOUNTING 1
-#define BTRFS_FS_STATE_TRANS_ABORTED 2
-#define BTRFS_FS_STATE_DEV_REPLACING 3
-#define BTRFS_FS_STATE_DUMMY_FS_INFO 4
+enum {
+ /* Global indicator of serious filesysystem errors */
+ BTRFS_FS_STATE_ERROR,
+ /*
+ * Filesystem is being remounted, allow to skip some operations, like
+ * defrag
+ */
+ BTRFS_FS_STATE_REMOUNTING,
+ /* Track if the transaction abort has been reported */
+ BTRFS_FS_STATE_TRANS_ABORTED,
+ /*
+ * Indicate that replace source or target device state is changed and
+ * allow to block bio operations
+ */
+ BTRFS_FS_STATE_DEV_REPLACING,
+ /* The btrfs_fs_info created for self-tests */
+ BTRFS_FS_STATE_DUMMY_FS_INFO,
+};
#define BTRFS_BACKREF_REV_MAX 256
#define BTRFS_BACKREF_REV_SHIFT 56
--
2.19.1
