btrfs: switch BTRFS_FS_* to enums

We can use simple enum for values that are not part of on-disk format:
internal filesystem states.

Reviewed-by: Omar Sandoval <osandov@fb.com>
Reviewed-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>

1 files changed, 31 insertions, 32 deletions

diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h
index becfe1d10e47..99f8fff8f2ae 100644
--- a/fs/btrfs/ctree.h
+++ b/fs/btrfs/ctree.h
@@ -757,38 +757,37 @@ struct btrfs_swapfile_pin {
 
 bool btrfs_pinned_by_swapfile(struct btrfs_fs_info *fs_info, void *ptr);
 
-#define BTRFS_FS_BARRIER                        1
-#define BTRFS_FS_CLOSING_START                  2
-#define BTRFS_FS_CLOSING_DONE                   3
-#define BTRFS_FS_LOG_RECOVERING                 4
-#define BTRFS_FS_OPEN                           5
-#define BTRFS_FS_QUOTA_ENABLED                  6
-#define BTRFS_FS_UPDATE_UUID_TREE_GEN           9
-#define BTRFS_FS_CREATING_FREE_SPACE_TREE       10
-#define BTRFS_FS_BTREE_ERR                      11
-#define BTRFS_FS_LOG1_ERR                       12
-#define BTRFS_FS_LOG2_ERR                       13
-#define BTRFS_FS_QUOTA_OVERRIDE                 14
-/* Used to record internally whether fs has been frozen */
-#define BTRFS_FS_FROZEN                         15
-
-/*
- * Indicate that a whole-filesystem exclusive operation is running
- * (device replace, resize, device add/delete, balance)
- */
-#define BTRFS_FS_EXCL_OP                        16
-
-/*
- * To info transaction_kthread we need an immediate commit so it doesn't
- * need to wait for commit_interval
- */
-#define BTRFS_FS_NEED_ASYNC_COMMIT              17
-
-/*
- * Indicate that balance has been set up from the ioctl and is in the main
- * phase. The fs_info::balance_ctl is initialized.
- */
-#define BTRFS_FS_BALANCE_RUNNING                18
+enum {
+        BTRFS_FS_BARRIER,
+        BTRFS_FS_CLOSING_START,
+        BTRFS_FS_CLOSING_DONE,
+        BTRFS_FS_LOG_RECOVERING,
+        BTRFS_FS_OPEN,
+        BTRFS_FS_QUOTA_ENABLED,
+        BTRFS_FS_UPDATE_UUID_TREE_GEN,
+        BTRFS_FS_CREATING_FREE_SPACE_TREE,
+        BTRFS_FS_BTREE_ERR,
+        BTRFS_FS_LOG1_ERR,
+        BTRFS_FS_LOG2_ERR,
+        BTRFS_FS_QUOTA_OVERRIDE,
+        /* Used to record internally whether fs has been frozen */
+        BTRFS_FS_FROZEN,
+        /*
+         * Indicate that a whole-filesystem exclusive operation is running
+         * (device replace, resize, device add/delete, balance)
+         */
+        BTRFS_FS_EXCL_OP,
+        /*
+         * To info transaction_kthread we need an immediate commit so it
+         * doesn't need to wait for commit_interval
+         */
+        BTRFS_FS_NEED_ASYNC_COMMIT,
+        /*
+         * Indicate that balance has been set up from the ioctl and is in the
+         * main phase. The fs_info::balance_ctl is initialized.
+         */
+        BTRFS_FS_BALANCE_RUNNING,
+};
 
 struct btrfs_fs_info {
         u8 chunk_tree_uuid[BTRFS_UUID_SIZE];