diff options
| author | Sidhartha Kumar <sidhartha.kumar@oracle.com> | 2023-01-25 18:05:34 +0100 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2023-02-14 00:54:29 +0100 |
| commit | d2d7bb44bfbd29200426ba17741550d36e081f91 (patch) | |
| tree | f9daa59186edb25e35e6e9956ac9c0d157d0bb43 /mm/hugetlb.c | |
| parent | mm/hugetlb: convert hugetlb fault paths to use alloc_hugetlb_folio() (diff) | |
| download | linux-d2d7bb44bfbd29200426ba17741550d36e081f91.tar.xz linux-d2d7bb44bfbd29200426ba17741550d36e081f91.zip | |
mm/hugetlb: convert restore_reserve_on_error to take in a folio
Every caller of restore_reserve_on_error() is now passing in &folio->page,
change the function to take in a folio directly and clean up the call
sites.
Link: https://lkml.kernel.org/r/20230125170537.96973-6-sidhartha.kumar@oracle.com
Signed-off-by: Sidhartha Kumar <sidhartha.kumar@oracle.com>
Cc: Gerald Schaefer <gerald.schaefer@linux.ibm.com>
Cc: John Hubbard <jhubbard@nvidia.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Mike Kravetz <mike.kravetz@oracle.com>
Cc: Muchun Song <songmuchun@bytedance.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to '')
| -rw-r--r-- | mm/hugetlb.c | 21 |
1 files changed, 10 insertions, 11 deletions
diff --git a/mm/hugetlb.c b/mm/hugetlb.c index ea8d4611779b..1f6270c586c0 100644 --- a/mm/hugetlb.c +++ b/mm/hugetlb.c @@ -2802,9 +2802,9 @@ static long vma_del_reservation(struct hstate *h, * and the hugetlb mutex should remain held when calling this routine. * * It handles two specific cases: - * 1) A reservation was in place and the page consumed the reservation. - * HPageRestoreReserve is set in the page. - * 2) No reservation was in place for the page, so HPageRestoreReserve is + * 1) A reservation was in place and the folio consumed the reservation. + * hugetlb_restore_reserve is set in the folio. + * 2) No reservation was in place for the page, so hugetlb_restore_reserve is * not set. However, alloc_hugetlb_folio always updates the reserve map. * * In case 1, free_huge_page later in the error path will increment the @@ -2817,9 +2817,8 @@ static long vma_del_reservation(struct hstate *h, * In case 2, simply undo reserve map modifications done by alloc_hugetlb_folio. */ void restore_reserve_on_error(struct hstate *h, struct vm_area_struct *vma, - unsigned long address, struct page *page) + unsigned long address, struct folio *folio) { - struct folio *folio = page_folio(page); long rc = vma_needs_reservation(h, vma, address); if (folio_test_hugetlb_restore_reserve(folio)) { @@ -5102,7 +5101,7 @@ again: entry = huge_ptep_get(src_pte); if (!pte_same(src_pte_old, entry)) { restore_reserve_on_error(h, dst_vma, addr, - &new_folio->page); + new_folio); folio_put(new_folio); /* huge_ptep of dst_pte won't change as in child */ goto again; @@ -5634,7 +5633,7 @@ out_release_all: * unshare) */ if (new_folio != page_folio(old_page)) - restore_reserve_on_error(h, vma, haddr, &new_folio->page); + restore_reserve_on_error(h, vma, haddr, new_folio); folio_put(new_folio); out_release_old: put_page(old_page); @@ -5846,7 +5845,7 @@ static vm_fault_t hugetlb_no_page(struct mm_struct *mm, * to the page cache. So it's safe to call * restore_reserve_on_error() here. */ - restore_reserve_on_error(h, vma, haddr, &folio->page); + restore_reserve_on_error(h, vma, haddr, folio); folio_put(folio); goto out; } @@ -5947,7 +5946,7 @@ backout: spin_unlock(ptl); backout_unlocked: if (new_folio && !new_pagecache_folio) - restore_reserve_on_error(h, vma, haddr, &folio->page); + restore_reserve_on_error(h, vma, haddr, folio); folio_unlock(folio); folio_put(folio); @@ -6210,7 +6209,7 @@ int hugetlb_mcopy_atomic_pte(struct mm_struct *dst_mm, /* Free the allocated folio which may have * consumed a reservation. */ - restore_reserve_on_error(h, dst_vma, dst_addr, &folio->page); + restore_reserve_on_error(h, dst_vma, dst_addr, folio); folio_put(folio); /* Allocate a temporary folio to hold the copied @@ -6339,7 +6338,7 @@ out_release_unlock: folio_unlock(folio); out_release_nounlock: if (!folio_in_pagecache) - restore_reserve_on_error(h, dst_vma, dst_addr, &folio->page); + restore_reserve_on_error(h, dst_vma, dst_addr, folio); folio_put(folio); goto out; } |