filemap_fdatawrite_range() expect the third arg to be @end
not @len, fix it.
Signed-off-by: Wang Shilong <wangsl.fnst@xxxxxxxxxxxxxx>
---
fs/btrfs/inode.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index e2c3d63..ed8b55c 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -7567,7 +7567,8 @@ static ssize_t btrfs_direct_IO(int rw, struct kiocb *iocb,
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);
+ filemap_fdatawrite_range(inode->i_mapping, offset,
+ offset + count - 1);
if (rw & WRITE) {
/*
--
1.8.2.1
--
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