bcachefs: Check for extents with too many ptrs

We have a hardcoded maximum on number of pointers in an extent that's
used by some other data structures - notably bch_devs_list - but we
weren't actually checking for it. Oops.

Signed-off-by: Kent Overstreet <kent.overstreet@gmail.com>
This commit is contained in:
Kent Overstreet 2022-06-16 22:38:10 -04:00 • committed by Kent Overstreet
commit b5f73fd79f