bcachefs: Validate that we read the correct btree node

Signed-off-by: Kent Overstreet <kent.overstreet@gmail.com>
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
This commit is contained in:
Kent Overstreet 2020-05-12 18:34:16 -04:00 • committed by Kent Overstreet
commit f36dff2885