diff options
| -rw-r--r-- | mm/filemap.c | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/mm/filemap.c b/mm/filemap.c index 7b90cbeb4a1a..008a55290f34 100644 --- a/mm/filemap.c +++ b/mm/filemap.c @@ -1589,6 +1589,16 @@ int folio_wait_private_2_killable(struct folio *folio) } EXPORT_SYMBOL(folio_wait_private_2_killable); +static void filemap_end_dropbehind(struct folio *folio) +{ + struct address_space *mapping = folio->mapping; + + VM_BUG_ON_FOLIO(!folio_test_locked(folio), folio); + + if (mapping && !folio_test_writeback(folio) && !folio_test_dirty(folio)) + folio_unmap_invalidate(mapping, folio, 0); +} + /* * If folio was marked as dropbehind, then pages should be dropped when writeback * completes. Do that now. If we fail, it's likely because of a big folio - @@ -1604,8 +1614,7 @@ static void folio_end_dropbehind_write(struct folio *folio) * invalidation in that case. */ if (in_task() && folio_trylock(folio)) { - if (folio->mapping) - folio_unmap_invalidate(folio->mapping, folio, 0); + filemap_end_dropbehind(folio); folio_unlock(folio); } } |