diff options
Diffstat (limited to 'mm')
| -rw-r--r-- | mm/truncate.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/mm/truncate.c b/mm/truncate.c index 6479ed2afc53f..2330223841fbb 100644 --- a/mm/truncate.c +++ b/mm/truncate.c @@ -530,9 +530,15 @@ unsigned long invalidate_mapping_pages(struct address_space *mapping, } else if (PageTransHuge(page)) { index += HPAGE_PMD_NR - 1; i += HPAGE_PMD_NR - 1; - /* 'end' is in the middle of THP */ - if (index == round_down(end, HPAGE_PMD_NR)) + /* + * 'end' is in the middle of THP. Don't + * invalidate the page as the part outside of + * 'end' could be still useful. + */ + if (index > end) { + unlock_page(page); continue; + } } ret = invalidate_inode_page(page); |