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6538b6221c
kvm_gmem_populate(), and the associated post-populate callbacks, have some limited support for dealing with guests backed by hugepages by passing the order information along to each post-populate callback and iterating through the pages passed to kvm_gmem_populate() in hugepage-chunks. However, guest_memfd doesn't yet support hugepages, and in most cases additional changes in the kvm_gmem_populate() path would also be needed to actually allow for this functionality. This makes the existing code unnecessarily complex, and makes changes difficult to work through upstream due to theoretical impacts on hugepage support that can't be considered properly without an actual hugepage implementation to reference. So for now, remove what's there so changes for things like in-place conversion can be implemented/reviewed more efficiently. Suggested-by: Vishal Annapurve <vannapurve@google.com> Co-developed-by: Vishal Annapurve <vannapurve@google.com> Signed-off-by: Vishal Annapurve <vannapurve@google.com> Tested-by: Vishal Annapurve <vannapurve@google.com> Tested-by: Kai Huang <kai.huang@intel.com> Signed-off-by: Michael Roth <michael.roth@amd.com> Tested-by: Yan Zhao <yan.y.zhao@intel.com> Reviewed-by: Yan Zhao <yan.y.zhao@intel.com> Link: https://patch.msgid.link/20260108214622.1084057-3-michael.roth@amd.com [sean: check for !IS_ERR() before checking folio_order()] Signed-off-by: Sean Christopherson <seanjc@google.com> |
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