This is a note to let you know that I've just added the patch titled
io_uring: use original request task for inflight tracking
to the 5.15-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
io_uring-use-original-request-task-for-inflight-tracking.patch
and it can be found in the queue-5.15 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 386e4fb6962b9f248a80f8870aea0870ca603e89 Mon Sep 17 00:00:00 2001
From: Jens Axboe <axboe@xxxxxxxxx>
Date: Thu, 23 Jun 2022 11:06:43 -0600
Subject: io_uring: use original request task for inflight tracking
From: Jens Axboe <axboe@xxxxxxxxx>
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@xxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
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(¤t->io_uring->inflight_tracked);
+ atomic_inc(&req->task->io_uring->inflight_tracked);
}
}
Patches currently in stable-queue which might be from axboe@xxxxxxxxx are
queue-5.15/io_uring-use-original-request-task-for-inflight-tracking.patch
