The 'written' that generic_file_direct_write return through
filemap_write_and_wait_range is not necessarily sequential,
and its iocb->ki_pos has not been updated.
Signed-off-by: Peng Hao <flyingpeng@xxxxxxxxxxx>
---
fs/fuse/file.c | 6 ++----
1 file changed, 2 insertions(+), 4 deletions(-)
diff --git a/fs/fuse/file.c b/fs/fuse/file.c
index 26730e699d68..52aaa1fb484d 100644
--- a/fs/fuse/file.c
+++ b/fs/fuse/file.c
@@ -1314,14 +1314,12 @@ static ssize_t fuse_cache_write_iter(struct kiocb *iocb, struct iov_iter *from)
goto out;
if (iocb->ki_flags & IOCB_DIRECT) {
- loff_t pos = iocb->ki_pos;
+ loff_t pos;
written = generic_file_direct_write(iocb, from);
if (written < 0 || !iov_iter_count(from))
goto out;
- pos += written;
-
- written_buffered = fuse_perform_write(iocb, mapping, from, pos);
+ written_buffered = fuse_perform_write(iocb, mapping, from, pos = iocb->ki_pos);
if (written_buffered < 0) {
err = written_buffered;
goto out;
--
2.27.0
