bcachefs: Improve error message in bch2_write_super()

It's helpful to know what the superblock write is for.

Signed-off-by: Kent Overstreet <kent.overstreet@gmail.com>
This commit is contained in:
Kent Overstreet 2021-11-03 17:23:49 -04:00 • committed by Kent Overstreet
commit d647db314a