bcachefs: Don't issue writes that are more than 1 MB

the bcachefs io path in io.c can't bounce writes larger than that.

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 2020-04-29 15:28:25 -04:00 • committed by Kent Overstreet
commit f59b346477