bcachefs: Use memalloc_nofs_save() in bch2_read_endio()

This solves a problematic memory allocation in bch2_bio_uncompress() ->
vmap().

Signed-off-by: Kent Overstreet <kent.overstreet@gmail.com>
This commit is contained in:
Kent Overstreet 2021-06-30 15:44:11 -04:00 • committed by Kent Overstreet
commit 077ed08ec7