[PATCH v2 1/2] btrfs-progs: add BTRFS_DEV_ITEMS_OBJECTID in comment in print-tree

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So when searching for BTRFS_DEV_ITEMS_OBJECTID, it hits, albeit it is
defined same as BTRFS_ROOT_TREE_OBJECTID.

Signed-off-by: Anand Jain <anand.jain@xxxxxxxxxx>
---
v1->v2: Improve comment.

 print-tree.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/print-tree.c b/print-tree.c
index b31e515f8989..b1c59d776547 100644
--- a/print-tree.c
+++ b/print-tree.c
@@ -705,6 +705,11 @@ void print_objectid(FILE *stream, u64 objectid, u8 type)
 
 	switch (objectid) {
 	case BTRFS_ROOT_TREE_OBJECTID:
+		/*
+		 * BTRFS_ROOT_TREE_OBJECTID and BTRFS_DEV_ITEMS_OBJECTID are
+		 * defined with the same value of 1ULL, distinguish them by
+		 * checking the type.
+		 */
 		if (type == BTRFS_DEV_ITEM_KEY)
 			fprintf(stream, "DEV_ITEMS");
 		else
-- 
2.21.0 (Apple Git-120)




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