+++ /dev/null
-From b1b6b5a30dce872f500dc43f067cba8e7f86fc7d Mon Sep 17 00:00:00 2001
-From: Pavel Begunkov <asml.silence@gmail.com>
-Date: Wed, 30 Dec 2020 21:34:16 +0000
-Subject: kernel/io_uring: cancel io_uring before task works
-
-From: Pavel Begunkov <asml.silence@gmail.com>
-
-commit b1b6b5a30dce872f500dc43f067cba8e7f86fc7d upstream.
-
-For cancelling io_uring requests it needs either to be able to run
-currently enqueued task_works or having it shut down by that moment.
-Otherwise io_uring_cancel_files() may be waiting for requests that won't
-ever complete.
-
-Go with the first way and do cancellations before setting PF_EXITING and
-so before putting the task_work infrastructure into a transition state
-where task_work_run() would better not be called.
-
-Cc: stable@vger.kernel.org # 5.5+
-Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
-Signed-off-by: Jens Axboe <axboe@kernel.dk>
-Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-
----
- fs/file.c | 2 --
- kernel/exit.c | 2 ++
- 2 files changed, 2 insertions(+), 2 deletions(-)
-
---- a/fs/file.c
-+++ b/fs/file.c
-@@ -21,7 +21,6 @@
- #include <linux/rcupdate.h>
- #include <linux/close_range.h>
- #include <net/sock.h>
--#include <linux/io_uring.h>
-
- unsigned int sysctl_nr_open __read_mostly = 1024*1024;
- unsigned int sysctl_nr_open_min = BITS_PER_LONG;
-@@ -453,7 +452,6 @@ void exit_files(struct task_struct *tsk)
- struct files_struct * files = tsk->files;
-
- if (files) {
-- io_uring_files_cancel(files);
- task_lock(tsk);
- tsk->files = NULL;
- task_unlock(tsk);
---- a/kernel/exit.c
-+++ b/kernel/exit.c
-@@ -63,6 +63,7 @@
- #include <linux/random.h>
- #include <linux/rcuwait.h>
- #include <linux/compat.h>
-+#include <linux/io_uring.h>
-
- #include <linux/uaccess.h>
- #include <asm/unistd.h>
-@@ -762,6 +763,7 @@ void __noreturn do_exit(long code)
- schedule();
- }
-
-+ io_uring_files_cancel(tsk->files);
- exit_signals(tsk); /* sets PF_EXITING */
-
- /* sync mm's RSS info before statistics gathering */
io_uring-use-bottom-half-safe-lock-for-fixed-file-data.patch
io_uring-add-a-helper-for-setting-a-ref-node.patch
io_uring-fix-io_sqe_files_unregister-hangs.patch
-kernel-io_uring-cancel-io_uring-before-task-works.patch
uapi-move-constants-from-linux-kernel.h-to-linux-const.h.patch
tools-headers-uapi-sync-linux-const.h-with-the-kernel-headers.patch
cgroup-fix-memory-leak-when-parsing-multiple-source-parameters.patch