undefined | Better HN

0 pointsamtadt1y ago0 comments

Because CRC is in the on-disk data structure, not in the in-ram data structure. It is stripped upon reading to ram, and created upon writing to disk.

That's how bcachefs is designed right now.

0 comments

No, we carefully carry around existing checksums when moving data.

Page cache is a different story, but doesn't apply to what we're talking about here.

j / k navigate · click thread line to collapse

No, we carefully carry around existing checksums when moving data.

Page cache is a different story, but doesn't apply to what we're talking about here.

j / k navigate · click thread line to collapse