btrfs-progs: dump-tree: convert key-to-string to table

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

diff --git a/print-tree.c b/print-tree.c
index f053a93..ea9b194 100644 (file)
--- a/print-tree.c
+++ b/print-tree.c
@@ -610,132 +610,58 @@ static void print_free_space_header(struct extent_buffer *leaf, int slot)
 
 void print_key_type(FILE *stream, u64 objectid, u8 type)
 {
+       static const char* key_to_str[256] = {
+               [BTRFS_INODE_ITEM_KEY]          = "INODE_ITEM",
+               [BTRFS_INODE_REF_KEY]           = "INODE_REF",
+               [BTRFS_INODE_EXTREF_KEY]        = "INODE_EXTREF",
+               [BTRFS_DIR_ITEM_KEY]            = "DIR_ITEM",
+               [BTRFS_DIR_INDEX_KEY]           = "DIR_INDEX",
+               [BTRFS_DIR_LOG_ITEM_KEY]        = "DIR_LOG_ITEM",
+               [BTRFS_DIR_LOG_INDEX_KEY]       = "DIR_LOG_INDEX",
+               [BTRFS_XATTR_ITEM_KEY]          = "XATTR_ITEM",
+               [BTRFS_ORPHAN_ITEM_KEY]         = "ORPHAN_ITEM",
+               [BTRFS_ROOT_ITEM_KEY]           = "ROOT_ITEM",
+               [BTRFS_ROOT_REF_KEY]            = "ROOT_REF",
+               [BTRFS_ROOT_BACKREF_KEY]        = "ROOT_BACKREF",
+               [BTRFS_EXTENT_ITEM_KEY]         = "EXTENT_ITEM",
+               [BTRFS_METADATA_ITEM_KEY]       = "METADATA_ITEM",
+               [BTRFS_TREE_BLOCK_REF_KEY]      = "TREE_BLOCK_REF",
+               [BTRFS_SHARED_BLOCK_REF_KEY]    = "SHARED_BLOCK_REF",
+               [BTRFS_EXTENT_DATA_REF_KEY]     = "EXTENT_DATA_REF",
+               [BTRFS_SHARED_DATA_REF_KEY]     = "SHARED_DATA_REF",
+               [BTRFS_EXTENT_REF_V0_KEY]       = "EXTENT_REF_V0",
+               [BTRFS_CSUM_ITEM_KEY]           = "CSUM_ITEM",
+               [BTRFS_EXTENT_CSUM_KEY]         = "EXTENT_CSUM",
+               [BTRFS_EXTENT_DATA_KEY]         = "EXTENT_DATA",
+               [BTRFS_BLOCK_GROUP_ITEM_KEY]    = "BLOCK_GROUP_ITEM",
+               [BTRFS_FREE_SPACE_INFO_KEY]     = "FREE_SPACE_INFO",
+               [BTRFS_FREE_SPACE_EXTENT_KEY]   = "FREE_SPACE_EXTENT",
+               [BTRFS_FREE_SPACE_BITMAP_KEY]   = "FREE_SPACE_BITMAP",
+               [BTRFS_CHUNK_ITEM_KEY]          = "CHUNK_ITEM",
+               [BTRFS_DEV_ITEM_KEY]            = "DEV_ITEM",
+               [BTRFS_DEV_EXTENT_KEY]          = "DEV_EXTENT",
+               [BTRFS_BALANCE_ITEM_KEY]        = "BALANCE_ITEM",
+               [BTRFS_DEV_REPLACE_KEY]         = "DEV_REPLACE",
+               [BTRFS_STRING_ITEM_KEY]         = "STRING_ITEM",
+               [BTRFS_QGROUP_STATUS_KEY]       = "QGROUP_STATUS",
+               [BTRFS_QGROUP_RELATION_KEY]     = "QGROUP_RELATION",
+               [BTRFS_QGROUP_INFO_KEY]         = "QGROUP_INFO",
+               [BTRFS_QGROUP_LIMIT_KEY]        = "QGROUP_LIMIT",
+               [BTRFS_DEV_STATS_KEY]           = "DEV_STATS",
+               [BTRFS_UUID_KEY_SUBVOL]         = "UUID_KEY_SUBVOL",
+               [BTRFS_UUID_KEY_RECEIVED_SUBVOL] = "UUID_KEY_RECEIVED_SUBVOL",
+       };
+
        if (type == 0 && objectid == BTRFS_FREE_SPACE_OBJECTID) {
                fprintf(stream, "UNTYPED");
                return;
        }
 
-       switch (type) {
-       case BTRFS_INODE_ITEM_KEY:
-               fprintf(stream, "INODE_ITEM");
-               break;
-       case BTRFS_INODE_REF_KEY:
-               fprintf(stream, "INODE_REF");
-               break;
-       case BTRFS_INODE_EXTREF_KEY:
-               fprintf(stream, "INODE_EXTREF");
-               break;
-       case BTRFS_DIR_ITEM_KEY:
-               fprintf(stream, "DIR_ITEM");
-               break;
-       case BTRFS_DIR_INDEX_KEY:
-               fprintf(stream, "DIR_INDEX");
-               break;
-       case BTRFS_DIR_LOG_ITEM_KEY:
-               fprintf(stream, "DIR_LOG_ITEM");
-               break;
-       case BTRFS_DIR_LOG_INDEX_KEY:
-               fprintf(stream, "DIR_LOG_INDEX");
-               break;
-       case BTRFS_XATTR_ITEM_KEY:
-               fprintf(stream, "XATTR_ITEM");
-               break;
-       case BTRFS_ORPHAN_ITEM_KEY:
-               fprintf(stream, "ORPHAN_ITEM");
-               break;
-       case BTRFS_ROOT_ITEM_KEY:
-               fprintf(stream, "ROOT_ITEM");
-               break;
-       case BTRFS_ROOT_REF_KEY:
-               fprintf(stream, "ROOT_REF");
-               break;
-       case BTRFS_ROOT_BACKREF_KEY:
-               fprintf(stream, "ROOT_BACKREF");
-               break;
-       case BTRFS_EXTENT_ITEM_KEY:
-               fprintf(stream, "EXTENT_ITEM");
-               break;
-       case BTRFS_METADATA_ITEM_KEY:
-               fprintf(stream, "METADATA_ITEM");
-               break;
-       case BTRFS_TREE_BLOCK_REF_KEY:
-               fprintf(stream, "TREE_BLOCK_REF");
-               break;
-       case BTRFS_SHARED_BLOCK_REF_KEY:
-               fprintf(stream, "SHARED_BLOCK_REF");
-               break;
-       case BTRFS_EXTENT_DATA_REF_KEY:
-               fprintf(stream, "EXTENT_DATA_REF");
-               break;
-       case BTRFS_SHARED_DATA_REF_KEY:
-               fprintf(stream, "SHARED_DATA_REF");
-               break;
-       case BTRFS_EXTENT_REF_V0_KEY:
-               fprintf(stream, "EXTENT_REF_V0");
-               break;
-       case BTRFS_CSUM_ITEM_KEY:
-               fprintf(stream, "CSUM_ITEM");
-               break;
-       case BTRFS_EXTENT_CSUM_KEY:
-               fprintf(stream, "EXTENT_CSUM");
-               break;
-       case BTRFS_EXTENT_DATA_KEY:
-               fprintf(stream, "EXTENT_DATA");
-               break;
-       case BTRFS_BLOCK_GROUP_ITEM_KEY:
-               fprintf(stream, "BLOCK_GROUP_ITEM");
-               break;
-       case BTRFS_FREE_SPACE_INFO_KEY:
-               fprintf(stream, "FREE_SPACE_INFO");
-               break;
-       case BTRFS_FREE_SPACE_EXTENT_KEY:
-               fprintf(stream, "FREE_SPACE_EXTENT");
-               break;
-       case BTRFS_FREE_SPACE_BITMAP_KEY:
-               fprintf(stream, "FREE_SPACE_BITMAP");
-               break;
-       case BTRFS_CHUNK_ITEM_KEY:
-               fprintf(stream, "CHUNK_ITEM");
-               break;
-       case BTRFS_DEV_ITEM_KEY:
-               fprintf(stream, "DEV_ITEM");
-               break;
-       case BTRFS_DEV_EXTENT_KEY:
-               fprintf(stream, "DEV_EXTENT");
-               break;
-       case BTRFS_BALANCE_ITEM_KEY:
-               fprintf(stream, "BALANCE_ITEM");
-               break;
-       case BTRFS_DEV_REPLACE_KEY:
-               fprintf(stream, "DEV_REPLACE");
-               break;
-       case BTRFS_STRING_ITEM_KEY:
-               fprintf(stream, "STRING_ITEM");
-               break;
-       case BTRFS_QGROUP_STATUS_KEY:
-               fprintf(stream, "QGROUP_STATUS");
-               break;
-       case BTRFS_QGROUP_RELATION_KEY:
-               fprintf(stream, "QGROUP_RELATION");
-               break;
-       case BTRFS_QGROUP_INFO_KEY:
-               fprintf(stream, "QGROUP_INFO");
-               break;
-       case BTRFS_QGROUP_LIMIT_KEY:
-               fprintf(stream, "QGROUP_LIMIT");
-               break;
-       case BTRFS_DEV_STATS_KEY:
-               fprintf(stream, "DEV_STATS");
-               break;
-       case BTRFS_UUID_KEY_SUBVOL:
-               fprintf(stream, "UUID_KEY_SUBVOL");
-               break;
-       case BTRFS_UUID_KEY_RECEIVED_SUBVOL:
-               fprintf(stream, "UUID_KEY_RECEIVED_SUBVOL");
-               break;
-       default:
+
+       if (key_to_str[type])
+               fputs(key_to_str[type], stream);
+       else
                fprintf(stream, "UNKNOWN.%d", type);
-       };
 }
 
 void print_objectid(FILE *stream, u64 objectid, u8 type)