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-rw-r--r--fs/btrfs/inode.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index 30a6cc5..c46a025 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -7456,7 +7456,7 @@ static ssize_t btrfs_direct_IO(int rw, struct kiocb *iocb,
* we need to flush the dirty pages again to make absolutely sure
* that any outstanding dirty pages are on disk.
*/
- count = iov_length(iter->iov, iter->nr_segs);
+ count = iov_iter_count(iter);
if (test_bit(BTRFS_INODE_HAS_ASYNC_EXTENT,
&BTRFS_I(inode)->runtime_flags))
filemap_fdatawrite_range(inode->i_mapping, offset, count);
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