[PATCH v3 5/6] btrfs-progs: original check: Add dev_item check for used bytes and total bytes

[Qu Wenruo <wqu@suse.com>]

Signed-off-by: Qu Wenruo <wqu@suse.com>
---
 check/main.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/check/main.c b/check/main.c
index ff9a785ce555..12f12e18a83f 100644
--- a/check/main.c
+++ b/check/main.c
@@ -7938,6 +7938,12 @@ static int check_device_used(struct device_record *dev_rec,
 	struct device_extent_record *dev_extent_rec;
 	u64 total_byte = 0;
 
+	if (dev_rec->byte_used > dev_rec->total_byte) {
+		error("device %llu has incorrect used bytes %llu > total bytes %llu",
+		      dev_rec->devid, dev_rec->byte_used, dev_rec->total_byte);
+		return -EUCLEAN;
+	}
+
 	cache = search_cache_extent2(&dext_cache->tree, dev_rec->devid, 0);
 	while (cache) {
 		dev_extent_rec = container_of(cache,
-- 
2.19.1