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Signed-off-by: Sidhartha Kumar Reviewed-by: Mike Kravetz --- fs/hugetlbfs/inode.c | 8 ++++---- include/linux/hugetlb.h | 15 +++++++++++++-- 2 files changed, 17 insertions(+), 6 deletions(-) diff --git a/fs/hugetlbfs/inode.c b/fs/hugetlbfs/inode.c index ed57a029eab0..5a4b136c6c36 100644 --- a/fs/hugetlbfs/inode.c +++ b/fs/hugetlbfs/inode.c @@ -1099,10 +1099,10 @@ static int hugetlbfs_migrate_folio(struct address_space *mapping, if (rc != MIGRATEPAGE_SUCCESS) return rc; - if (hugetlb_page_subpool(&src->page)) { - hugetlb_set_page_subpool(&dst->page, - hugetlb_page_subpool(&src->page)); - hugetlb_set_page_subpool(&src->page, NULL); + if (hugetlb_folio_subpool(src)) { + hugetlb_set_folio_subpool(dst, + hugetlb_folio_subpool(src)); + hugetlb_set_folio_subpool(src, NULL); } if (mode != MIGRATE_SYNC_NO_COPY) diff --git a/include/linux/hugetlb.h b/include/linux/hugetlb.h index 8edcdb6a833f..f92b9e6c8f9e 100644 --- a/include/linux/hugetlb.h +++ b/include/linux/hugetlb.h @@ -752,18 +752,29 @@ extern unsigned int default_hstate_idx; #define default_hstate (hstates[default_hstate_idx]) +static inline struct hugepage_subpool *hugetlb_folio_subpool(struct folio *folio) +{ + return (void *)folio_get_private_1(folio); +} + /* * hugetlb page subpool pointer located in hpage[1].private */ static inline struct hugepage_subpool *hugetlb_page_subpool(struct page *hpage) { - return (void *)page_private(hpage + SUBPAGE_INDEX_SUBPOOL); + return hugetlb_folio_subpool(page_folio(hpage)); +} + +static inline void hugetlb_set_folio_subpool(struct folio *folio, + struct hugepage_subpool *subpool) +{ + folio_set_private_1(folio, (unsigned long)subpool); } static inline void hugetlb_set_page_subpool(struct page *hpage, struct hugepage_subpool *subpool) { - set_page_private(hpage + SUBPAGE_INDEX_SUBPOOL, (unsigned long)subpool); + hugetlb_set_folio_subpool(page_folio(hpage), subpool); } static inline struct hstate *hstate_file(struct file *f) -- 2.31.1