On 13 Feb 2024, at 17:05, Luis Chamberlain wrote: > On Tue, Feb 13, 2024 at 04:55:18PM -0500, Zi Yan wrote: >> From: Zi Yan <ziy@xxxxxxxxxx> >> Order-1 folio is not supported because _deferred_list, which is used by >> partially mapped folios, is stored in subpage 2 and an order-1 folio only >> has subpage 0 and 1. > > The LBS patches has the patch from Matthew which enables and allowed us > to successfully test order 1. So this restriction could be dropped if > that gets merged. OK. But it only applies to file-backed folios IIUC. Anonymous folios still cannot be split to order-1. -- Best Regards, Yan, Zi
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