FAILED: patch "[PATCH] io_uring/net: don't overflow multishot recv" failed to apply to 6.4-stable tree
Subsystems (2)
[email protected]
maintainerThe patch below does not apply to the 6.4-stable tree.
If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <[email protected]>.
To reproduce the conflict and resubmit, you may use the following commands:
git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-6.4.y
git checkout FETCH_HEAD
git cherry-pick -x b2e74db55dd93d6db22a813c9a775b5dbf87c560
# <resolve conflicts, build, test, etc.>
git commit -s
git send-email --to '<[email protected]>' --in-reply-to '2023090908-cursor-reshape-7963@gregkh' --subject-prefix 'PATCH 6.4.y' HEAD^..
Possible dependencies:
b2e74db55dd9 ("io_uring/net: don't overflow multishot recv") d86eaed185e9 ("io_uring: cleanup io_aux_cqe() API")
thanks,
greg k-h
------------------ original commit in Linus's tree ------------------
From b2e74db55dd93d6db22a813c9a775b5dbf87c560 Mon Sep 17 00:00:00 2001
From: Pavel Begunkov <[email protected]>
Date: Fri, 11 Aug 2023 13:53:42 +0100
Subject: [PATCH] io_uring/net: don't overflow multishot recv
Don't allow overflowing multishot recv CQEs, it might get out of hand, hurt performance, and in the worst case scenario OOM the task.
io_uring/net.c +1 -1
@@ -642,7 +642,7 @@ static inline bool io_recv_finish(struct io_kiocb *req, int *ret,if (!mshot_finished) {if (io_aux_cqe (req, issue_flags &IO_URING_F_COMPLETE_DEFER , - *ret, cflags |IORING_CQE_F_MORE , true)) { + *ret, cflags |IORING_CQE_F_MORE , false)) {io_recv_prep_retry (req);/* Known not-empty or unknown state, retry */ if (cflags & IORING_CQE_F_SOCK_NONEMPTY ||