bcachefs: Drop some memset() calls

gcc is emitting rep stos here, which is silly (and slow) for an 8 byte
memset.

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 2021-04-03 21:09:13 -04:00 • committed by Kent Overstreet
commit 08e337618f