I've run into a couple filesystems where btrfs-find-root would spin
indefinitely.
If the first cache extent start location is 0, we end up in an infinite
loop in btrfs_next_bg(). Fix it by checking for that situation, and
jumping to the next bg if necessary.
Fixes: e2e0dae9 (btrfs-progs: volume: Fix a bug causing btrfs-find-root to skip
first chunk)
Signed-off-by: Justin Maggard <jmagg...@netgear.com>
---
volumes.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/volumes.c b/volumes.c
index b350e259..8c0c10ce 100644
--- a/volumes.c
+++ b/volumes.c
@@ -1278,6 +1278,8 @@ int btrfs_next_bg(struct btrfs_mapping_tree *map_tree,
u64 *logical,
*size = ce->size;
return 0;
}
+ if (!cur)
+ ce = next_cache_extent(ce);
}
return -ENOENT;
--
2.13.0
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