btrfs: tree-log: add and rename extent bits for dirty_log_pages tree

The dirty_log_pages tree is used for tree logging and marks extents
based on log_transid. The bits could be renamed to resemble the
LOG1/LOG2 naming used for the BTRFS_FS_LOG1_ERR bits.

The DIRTY bit is renamed to LOG1 and NEW to LOG2.

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

Author: kdave

fs/btrfs/extent-io-tree.h

@@ -19,7 +19,8 @@ enum {
 	ENUM_BIT(EXTENT_DIRTY),
 	ENUM_BIT(EXTENT_LOCKED),
 	ENUM_BIT(EXTENT_DIO_LOCKED),
-	ENUM_BIT(EXTENT_NEW),
+	ENUM_BIT(EXTENT_DIRTY_LOG1),
+	ENUM_BIT(EXTENT_DIRTY_LOG2),
 	ENUM_BIT(EXTENT_DELALLOC),
 	ENUM_BIT(EXTENT_DEFRAG),
 	ENUM_BIT(EXTENT_BOUNDARY),

fs/btrfs/extent-tree.c

@@ -5113,11 +5113,11 @@ btrfs_init_new_buffer(struct btrfs_trans_handle *trans, struct btrfs_root *root,
 		if (buf->log_index == 0)
 			btrfs_set_extent_bit(&root->dirty_log_pages, buf->start,
 					     buf->start + buf->len - 1,
-					     EXTENT_DIRTY, NULL);
+					     EXTENT_DIRTY_LOG1, NULL);
 		else
 			btrfs_set_extent_bit(&root->dirty_log_pages, buf->start,
 					     buf->start + buf->len - 1,
-					     EXTENT_NEW, NULL);
+					     EXTENT_DIRTY_LOG2, NULL);
 	} else {
 		buf->log_index = -1;
 		btrfs_set_extent_bit(&trans->transaction->dirty_pages, buf->start,

fs/btrfs/tests/extent-io-tests.c

@@ -75,7 +75,8 @@ static void extent_flag_to_str(const struct extent_state *state, char *dest)
 	dest[0] = 0;
 	PRINT_ONE_FLAG(state, dest, cur, DIRTY);
 	PRINT_ONE_FLAG(state, dest, cur, LOCKED);
-	PRINT_ONE_FLAG(state, dest, cur, NEW);
+	PRINT_ONE_FLAG(state, dest, cur, DIRTY_LOG1);
+	PRINT_ONE_FLAG(state, dest, cur, DIRTY_LOG2);
 	PRINT_ONE_FLAG(state, dest, cur, DELALLOC);
 	PRINT_ONE_FLAG(state, dest, cur, DEFRAG);
 	PRINT_ONE_FLAG(state, dest, cur, BOUNDARY);

fs/btrfs/transaction.c

@@ -1232,11 +1232,11 @@ int btrfs_wait_tree_log_extents(struct btrfs_root *log_root, int mark)
 	ASSERT(btrfs_root_id(log_root) == BTRFS_TREE_LOG_OBJECTID);
 
 	ret = __btrfs_wait_marked_extents(fs_info, dirty_pages);
-	if ((mark & EXTENT_DIRTY) &&
+	if ((mark & EXTENT_DIRTY_LOG1) &&
 	    test_and_clear_bit(BTRFS_FS_LOG1_ERR, &fs_info->flags))
 		errors = true;
 
-	if ((mark & EXTENT_NEW) &&
+	if ((mark & EXTENT_DIRTY_LOG2) &&
 	    test_and_clear_bit(BTRFS_FS_LOG2_ERR, &fs_info->flags))
 		errors = true;
 

fs/btrfs/tree-log.c

@@ -2961,9 +2961,9 @@ int btrfs_sync_log(struct btrfs_trans_handle *trans,
 	}
 
 	if (log_transid % 2 == 0)
-		mark = EXTENT_DIRTY;
+		mark = EXTENT_DIRTY_LOG1;
 	else
-		mark = EXTENT_NEW;
+		mark = EXTENT_DIRTY_LOG2;
 
 	/* we start IO on  all the marked extents here, but we don't actually
 	 * wait for them until later.
@@ -3094,7 +3094,7 @@ int btrfs_sync_log(struct btrfs_trans_handle *trans,
 
 	ret = btrfs_write_marked_extents(fs_info,
 					 &log_root_tree->dirty_log_pages,
-					 EXTENT_DIRTY | EXTENT_NEW);
+					 EXTENT_DIRTY_LOG1 | EXTENT_DIRTY_LOG2);
 	blk_finish_plug(&plug);
 	/*
 	 * As described above, -EAGAIN indicates a hole in the extents. We
@@ -3114,7 +3114,7 @@ int btrfs_sync_log(struct btrfs_trans_handle *trans,
 	ret = btrfs_wait_tree_log_extents(log, mark);
 	if (!ret)
 		ret = btrfs_wait_tree_log_extents(log_root_tree,
-						  EXTENT_NEW | EXTENT_DIRTY);
+						  EXTENT_DIRTY_LOG1 | EXTENT_DIRTY_LOG2);
 	if (ret) {
 		btrfs_set_log_full_commit(trans);
 		mutex_unlock(&log_root_tree->log_mutex);
@@ -3240,9 +3240,9 @@ static void free_log_tree(struct btrfs_trans_handle *trans,
 			 */
 			btrfs_write_marked_extents(log->fs_info,
 						   &log->dirty_log_pages,
-						   EXTENT_DIRTY | EXTENT_NEW);
+						   EXTENT_DIRTY_LOG1 | EXTENT_DIRTY_LOG2);
 			btrfs_wait_tree_log_extents(log,
-						    EXTENT_DIRTY | EXTENT_NEW);
+						    EXTENT_DIRTY_LOG1 | EXTENT_DIRTY_LOG2);
 
 			if (trans)
 				btrfs_abort_transaction(trans, ret);

include/trace/events/btrfs.h

@@ -144,7 +144,8 @@ FLUSH_STATES
 #define EXTENT_FLAGS						\
 	{ EXTENT_DIRTY,			"DIRTY"},		\
 	{ EXTENT_LOCKED,		"LOCKED"},		\
-	{ EXTENT_NEW,			"NEW"},			\
+	{ EXTENT_DIRTY_LOG1,		"DIRTY_LOG1"},		\
+	{ EXTENT_DIRTY_LOG2,		"DIRTY_LOG2"},		\
 	{ EXTENT_DELALLOC,		"DELALLOC"},		\
 	{ EXTENT_DEFRAG,		"DEFRAG"},		\
 	{ EXTENT_BOUNDARY,		"BOUNDARY"},		\