diff options
| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-12-03 07:56:15 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-12-03 07:56:15 +0100 |
| commit | 22fee7d3851314f8384c9d44233bb86a2862ed64 (patch) | |
| tree | f080b7f8b8f4e24e3e349a4c45ce9463718716f8 /mm/rmap.c | |
| parent | b5570ca7c475bffbc5fc2e9af994dc6d249eb13e (diff) | |
| parent | 2595646791c319cadfdbf271563aac97d0843dc7 (diff) | |
Merge 4.20-rc5 into char-misc-next
We need the fixes in here as well.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'mm/rmap.c')
| -rw-r--r-- | mm/rmap.c | 13 |
1 files changed, 3 insertions, 10 deletions
diff --git a/mm/rmap.c b/mm/rmap.c index 1e79fac3186b..85b7f9423352 100644 --- a/mm/rmap.c +++ b/mm/rmap.c @@ -1627,16 +1627,9 @@ static bool try_to_unmap_one(struct page *page, struct vm_area_struct *vma, address + PAGE_SIZE); } else { /* - * We should not need to notify here as we reach this - * case only from freeze_page() itself only call from - * split_huge_page_to_list() so everything below must - * be true: - * - page is not anonymous - * - page is locked - * - * So as it is a locked file back page thus it can not - * be remove from the page cache and replace by a new - * page before mmu_notifier_invalidate_range_end so no + * This is a locked file-backed page, thus it cannot + * be removed from the page cache and replaced by a new + * page before mmu_notifier_invalidate_range_end, so no * concurrent thread might update its page table to * point at new page while a device still is using this * page. |