+ mm-add-and-use-find_lock_entries-fix.patch added to -mm tree

+ mm-add-and-use-find_lock_entries-fix.patch added to -mm tree

[akpm]

The patch titled
     Subject: fix mm-add-and-use-find_lock_entries.patch
has been added to the -mm tree.  Its filename is
     mm-add-and-use-find_lock_entries-fix.patch

This patch should soon appear at
    https://ozlabs.org/~akpm/mmots/broken-out/mm-add-and-use-find_lock_entries-fix.patch
and later at
    https://ozlabs.org/~akpm/mmotm/broken-out/mm-add-and-use-find_lock_entries-fix.patch

Before you just go and hit "reply", please:
   a) Consider who else should be cc'ed
   b) Prefer to cc a suitable mailing list as well
   c) Ideally: find the original patch on the mailing list and do a
      reply-to-all to that, adding suitable additional cc's

*** Remember to use Documentation/process/submit-checklist.rst when testing your code ***

The -mm tree is included into linux-next and is updated
there every 3-4 working days

------------------------------------------------------
From: "Matthew Wilcox (Oracle)" <willy@infradead.org>
Subject: fix mm-add-and-use-find_lock_entries.patch

Link: https://lkml.kernel.org/r/20201124041507.28996-3-willy@infradead.org

Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 mm/filemap.c |    2 ++
 1 file changed, 2 insertions(+)

--- a/mm/filemap.c~mm-add-and-use-find_lock_entries-fix
+++ a/mm/filemap.c
@@ -1963,6 +1963,8 @@ unsigned find_lock_entries(struct addres
 				goto put;
 			if (page->mapping != mapping || PageWriteback(page))
 				goto unlock;
+			VM_BUG_ON_PAGE(!thp_contains(page, xas.xa_index),
+					page);
 		}
 		indices[pvec->nr] = xas.xa_index;
 		if (!pagevec_add(pvec, page))
_

Patches currently in -mm which might be from willy@infradead.org are

mm-page-flags-fix-comment.patch
mm-page_alloc-add-__free_pages-documentation.patch
mm-support-thps-in-zero_user_segments.patch
mm-make-pagecache-tagged-lookups-return-only-head-pages.patch
mm-shmem-use-pagevec_lookup-in-shmem_unlock_mapping.patch
mm-swap-optimise-get_shadow_from_swap_cache.patch
mm-add-fgp_entry.patch
mm-filemap-rename-find_get_entry-to-mapping_get_entry.patch
mm-filemap-add-helper-for-finding-pages.patch
mm-filemap-add-helper-for-finding-pages-fix.patch
mm-filemap-add-mapping_seek_hole_data.patch
iomap-use-mapping_seek_hole_data.patch
mm-add-and-use-find_lock_entries.patch
mm-add-and-use-find_lock_entries-fix.patch
mm-add-an-end-parameter-to-find_get_entries.patch
mm-add-an-end-parameter-to-pagevec_lookup_entries.patch
mm-remove-nr_entries-parameter-from-pagevec_lookup_entries.patch
mm-pass-pvec-directly-to-find_get_entries.patch
mm-remove-pagevec_lookup_entries.patch
mm-truncateshmem-handle-truncates-that-split-thps.patch
mm-filemap-return-only-head-pages-from-find_get_entries.patch