From 7ccba24d3bc084d891def1a6fea504e4cb327a8c Mon Sep 17 00:00:00 2001
From: Jens Axboe <axboe@kernel.dk>
Date: Sun, 1 May 2022 12:31:56 -0600
Subject: [PATCH] io_uring: don't clear req->kbuf when buffer selection is done
Git-commit: 7ccba24d3bc084d891def1a6fea504e4cb327a8c
Patch-mainline: v5.19-rc1
References: bsc#1205205

It's not needed as the REQ_F_BUFFER_SELECTED flag tracks the state of
whether or not kbuf is valid, so just drop it.

Suggested-by: Dylan Yudaken <dylany@fb.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Gabriel Krisman Bertazi <krisman@suse.de>
---
 fs/io_uring.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/fs/io_uring.c b/fs/io_uring.c
index 52641594a86b..22699cb359e9 100644
--- a/fs/io_uring.c
+++ b/fs/io_uring.c
@@ -1463,7 +1463,6 @@ static unsigned int __io_put_kbuf(struct io_kiocb *req, struct list_head *list)
 {
 	req->flags &= ~REQ_F_BUFFER_SELECTED;
 	list_add(&req->kbuf->list, list);
-	req->kbuf = NULL;
 
 	return IORING_CQE_F_BUFFER | (req->buf_index << IORING_CQE_BUFFER_SHIFT);
 }
@@ -1540,7 +1539,6 @@ static void io_kbuf_recycle(struct io_kiocb *req, unsigned issue_flags)
 	list_add(&buf->list, &bl->buf_list);
 	req->flags &= ~REQ_F_BUFFER_SELECTED;
 	req->buf_index = buf->bgid;
-	req->kbuf = NULL;
 
 	io_ring_submit_unlock(ctx, issue_flags);
 }
-- 
2.35.3