Revert "[Huawei] io_uring: fix soft lockup in io_submit_sqes()"

Offering: HULK
hulk inclusion
category: feature
bugzilla: https://gitee.com/src-openeuler/kernel/issues/I6BTWC

-------------------------------

This reverts commit ac02c0bf.

We need to apply patch 788d0824269bef (io_uring: import 5.15-stable
io_uring) to move io_uring to separate directory and solve
the problem of CVE-2023-0240.
Revert this patch and add it again after patch 788d0824269bef to
reduce conflicts.
Signed-off-by: NLi Lingfeng <lilingfeng3@huawei.com>
Reviewed-by: NZhang Yi <yi.zhang@huawei.com>
Reviewed-by: NWang Weiyang <wangweiyang2@huawei.com>
Signed-off-by: NJialin Zhang <zhangjialin11@huawei.com>

fs/io_uring.c

@@ -6705,9 +6705,6 @@ static int io_submit_sqes(struct io_ring_ctx *ctx, unsigned int nr)
 		err = io_submit_sqe(req, sqe, &link, &state.comp);
 		if (err)
 			goto fail_req;
-		/* to avoid doing too much in one submit round */
-		if (submitted > IORING_MAX_ENTRIES / 2)
-			cond_resched();
 	}
 
 	if (unlikely(submitted != nr)) {