If we drop buffers between scheduling a retry, then we need to re-import
when we start the request again.
Signed-off-by: Jens Axboe <axboe@xxxxxxxxx>
---
fs/io_uring.c | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/fs/io_uring.c b/fs/io_uring.c
index 4d8366bc226f..584b36dcd0aa 100644
--- a/fs/io_uring.c
+++ b/fs/io_uring.c
@@ -3737,6 +3737,16 @@ static int io_read(struct io_kiocb *req, unsigned int issue_flags)
if (unlikely(ret < 0))
return ret;
} else {
+ /*
+ * Safe and required to re-import if we're using provided
+ * buffers, as we dropped the selected one before retry.
+ */
+ if (req->flags & REQ_F_BUFFER_SELECT) {
+ ret = io_import_iovec(READ, req, &iovec, s, issue_flags);
+ if (unlikely(ret < 0))
+ return ret;
+ }
+
rw = req->async_data;
s = &rw->s;
/*
--
2.35.1
