kernel: provide create_io_thread() helper
stable inclusion from stable-v5.10.162 commit 1500fed00878fd59b2d6a1832b8d3f7c261a5671 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I6BTWC CVE: NA Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=v5.10.168&id=1500fed00878fd59b2d6a1832b8d3f7c261a5671 -------------------------------- [ Upstream commit cc440e87 ] Provide a generic helper for setting up an io_uring worker. Returns a task_struct so that the caller can do whatever setup is needed, then call wake_up_new_task() to kick it into gear. Add a kernel_clone_args member, io_thread, which tells copy_process() to mark the task with PF_IO_WORKER. Signed-off-by: NJens Axboe <axboe@kernel.dk> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: NLi Lingfeng <lilingfeng3@huawei.com> Acked-by: NZhang Yi <yi.zhang@huawei.com> Reviewed-by: NWang Weiyang <wangweiyang2@huawei.com> Signed-off-by: NJialin Zhang <zhangjialin11@huawei.com>
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