[PATCH 5.15 01/14] io_uring: use original request task for inflight tracking

Greg Kroah-Hartman
2022-08-19T15:41:37Z

From: Jens Axboe <axboe@kernel.dk>

commit 386e4fb6962b9f248a80f8870aea0870ca603e89 upstream.

In prior kernels, we did file assignment always at prep time. This meant
that req->task == current. But after deferring that assignment and then
pushing the inflight tracking back in, we've got the inflight tracking
using current when it should in fact now be using req->task.

Fixup that error introduced by adding the inflight tracking back after
file assignments got modifed.

Fixes: 9cae36a094e7 ("io_uring: reinstate the inflight tracking")
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
fs/io_uring.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

--- a/fs/io_uring.c
+++ b/fs/io_uring.c
@@ -1405,7 +1405,7 @@ static void io_req_track_inflight(struct
{
if (!(req->flags & REQ_F_INFLIGHT)) {
req->flags |= REQ_F_INFLIGHT;
- atomic_inc(&current->io_uring->inflight_tracked);
+ atomic_inc(&req->task->io_uring->inflight_tracked);
}
}