filemap_get_folio can return NULL, skip those cases.
Signed-off-by: Christoph Hellwig <hch@xxxxxx>
---
fs/btrfs/extent_io.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c
index d55e4531ffd212..a54d2cf74ba020 100644
--- a/fs/btrfs/extent_io.c
+++ b/fs/btrfs/extent_io.c
@@ -230,6 +230,8 @@ void extent_range_redirty_for_io(struct inode *inode, u64 start, u64 end)
while (index <= end_index) {
folio = filemap_get_folio(mapping, index);
+ if (!folio)
+ continue;
filemap_dirty_folio(mapping, folio);
folio_account_redirty(folio);
index += folio_nr_pages(folio);
--
2.39.0
