[merged mm-stable] mm-gup-cleanup-next_page-handling.patch removed from -mm tree

[merged mm-stable] mm-gup-cleanup-next_page-handling.patch removed from -mm tree

[Andrew Morton]

The quilt patch titled
     Subject: mm/gup: cleanup next_page handling
has been removed from the -mm tree.  Its filename was
     mm-gup-cleanup-next_page-handling.patch

This patch was dropped because it was merged into the mm-stable branch
of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

------------------------------------------------------
From: Peter Xu <peterx@redhat.com>
Subject: mm/gup: cleanup next_page handling
Date: Wed, 28 Jun 2023 17:53:06 -0400

The only path that doesn't use generic "**pages" handling is the gate vma.
Make it use the same path, meanwhile tune the next_page label upper to
cover "**pages" handling.  This prepares for THP handling for "**pages".

Link: https://lkml.kernel.org/r/20230628215310.73782-5-peterx@redhat.com
Signed-off-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Lorenzo Stoakes <lstoakes@gmail.com>
Acked-by: David Hildenbrand <david@redhat.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: James Houghton <jthoughton@google.com>
Cc: Jason Gunthorpe <jgg@nvidia.com>
Cc: John Hubbard <jhubbard@nvidia.com>
Cc: Kirill A . Shutemov <kirill@shutemov.name>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Mike Kravetz <mike.kravetz@oracle.com>
Cc: Mike Rapoport (IBM) <rppt@kernel.org>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Yang Shi <shy828301@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 mm/gup.c |    7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

--- a/mm/gup.c~mm-gup-cleanup-next_page-handling
+++ a/mm/gup.c
@@ -1207,7 +1207,7 @@ static long __get_user_pages(struct mm_s
 			if (!vma && in_gate_area(mm, start)) {
 				ret = get_gate_page(mm, start & PAGE_MASK,
 						gup_flags, &vma,
-						pages ? &pages[i] : NULL);
+						pages ? &page : NULL);
 				if (ret)
 					goto out;
 				ctx.page_mask = 0;
@@ -1277,19 +1277,18 @@ retry:
 				ret = PTR_ERR(page);
 				goto out;
 			}
-
-			goto next_page;
 		} else if (IS_ERR(page)) {
 			ret = PTR_ERR(page);
 			goto out;
 		}
+next_page:
 		if (pages) {
 			pages[i] = page;
 			flush_anon_page(vma, page, start);
 			flush_dcache_page(page);
 			ctx.page_mask = 0;
 		}
-next_page:
+
 		page_increm = 1 + (~(start >> PAGE_SHIFT) & ctx.page_mask);
 		if (page_increm > nr_pages)
 			page_increm = nr_pages;
_

Patches currently in -mm which might be from peterx@redhat.com are