RE:(2) [PATCH v3 5/9] xfs: refuse a direct allocation whose block reservation would wrap

[Daejun Park]

On Thu, Oct 15, 2026 at 08:09:32AM +0200, Christoph Hellwig wrote:
> I think the limit needs to be lower, as xfs_bmapi_write can't hand
> out such large limits.  We'll also need to make sure pnfs can
> request multiple maps.

Thanks, I'll limit the count to XFS_MAX_BMBT_EXTLEN in v4. nfsd asks
again for the rest of the range since commit cc6c40e09d7b
("NFSD/blocklayout: Support multiple extents per LAYOUTGET"), and
letting a single ->map_blocks call return several mappings is what
patches 4, 5, 7 and 8 of the ->map_blocks series did [1]; I'll resend
those for the next cycle.

[1] https://lore.kernel.org/r/20261008-xfs-nfsd-map-blocks-v1-0-560026cdccb6@xxxxxxxxxxx