mm/truncate: don't skip dirty page in folio_unmap_invalidate()

... otherwise this is a behavior change for the previous callers of
invalidate_complete_folio2(), e.g. the page invalidation routine.

Fixes: 4a9e23159fd3 ("mm/truncate: add folio_unmap_invalidate() helper")
Signed-off-by: Jingbo Xu <jefflexu@linux.alibaba.com>
Link: https://lore.kernel.org/r/20250218120209.88093-3-jefflexu@linux.alibaba.com
Signed-off-by: Christian Brauner <brauner@kernel.org>

diff --git a/mm/truncate.c b/mm/truncate.c
index e2e115adfbc58a7cfa91a2d02a7855bbc9d38c87..76d8fcd89bd003a6c0a565ec5a023376b1c86fe2 100644 (file)
--- a/mm/truncate.c
+++ b/mm/truncate.c
@@ -548,8 +548,6 @@ int folio_unmap_invalidate(struct address_space *mapping, struct folio *folio,
 
        VM_BUG_ON_FOLIO(!folio_test_locked(folio), folio);
 
-       if (folio_test_dirty(folio))
-               return 0;
        if (folio_mapped(folio))
                unmap_mapping_folio(folio);
        BUG_ON(folio_mapped(folio));