On Thu, Feb 06, 2025 at 08:39:01PM -0800, Darrick J. Wong wrote: > > The bmbt values are all relative to rtstart, the daddr translation is > > what adds the offset. So if we want to take the offset out of the > > fsmap reporting, I'll need new helpers to not add it or manually > > subtract it afterwards. If that's preferred it should be doable, even > > if the fsmap code keeps confusing me more each time I look at it. > > The fmr_physical addresses of the fsmaps reported for the "XFS_DEV_RT" > device (aka when sb_rtstart > 0) are relative to the start of the data > device, right? Yes. > In a way, that makes it easier to figure out how to set > up a media scan or a block device to file translation, because the > fmr_physical number you feed in and get out of fsmap always matches the > device LBA. Yes.
