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[ Upstream commit 149562f7509404c382c32c3fa8a6ba356135e5cf ] Allow hugetlbfs_migrate_folio to check and read subpool information by passing in a folio. Link: https://lkml.kernel.org/r/20220922154207.1575343-4-sidhartha.kumar@oracle.com Signed-off-by: Sidhartha Kumar <sidhartha.kumar@oracle.com> Reviewed-by: Mike Kravetz <mike.kravetz@oracle.com> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Colin Cross <ccross@google.com> Cc: David Howells <dhowells@redhat.com> Cc: "Eric W . Biederman" <ebiederm@xmission.com> Cc: Hugh Dickins <hughd@google.com> Cc: kernel test robot <lkp@intel.com> Cc: Matthew Wilcox <willy@infradead.org> Cc: Muchun Song <songmuchun@bytedance.com> Cc: Peter Xu <peterx@redhat.com> Cc: Vlastimil Babka <vbabka@suse.cz> Cc: William Kucharski <william.kucharski@oracle.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Stable-dep-of: b76b46902c2d ("mm/hugetlb: fix missing hugetlb_lock for resv uncharge") Signed-off-by: Sasha Levin <sashal@kernel.org>