[PATCH 4.14 041/146] btrfs: Check that each block group has corresponding chunk at mount time

4.14-stable review patch. If anyone has any objections, please let me know. -- commit 514c7dca85a0bf40be984dab0b477403a6db901f upstream. A crafted btrfs image with incorrect chunk<->block group mapping will trigger a lot of unexpected things as the mapping is essential.

[PATCH 4.14 041/146] btrfs: Check that each block group has corresponding chunk at mount time

4.14-stable review patch. If anyone has any objections, please let me know. -- commit 514c7dca85a0bf40be984dab0b477403a6db901f upstream. A crafted btrfs image with incorrect chunk<->block group mapping will trigger a lot of unexpected things as the mapping is essential.