This reverts commit 3d200242a6c968af321913b635fc4014b238cba4.
Buffer selection with nops was used for debugging and benchmarking but
is useless in real life. Let's revert it before it's released.
Signed-off-by: Pavel Begunkov <asml.silence@xxxxxxxxx>
---
fs/io_uring.c | 15 +--------------
1 file changed, 1 insertion(+), 14 deletions(-)
diff --git a/fs/io_uring.c b/fs/io_uring.c
index bf556f77d4ab..1b95c6750a81 100644
--- a/fs/io_uring.c
+++ b/fs/io_uring.c
@@ -1114,7 +1114,6 @@ static const struct io_op_def io_op_defs[] = {
[IORING_OP_NOP] = {
.audit_skip = 1,
.iopoll = 1,
- .buffer_select = 1,
},
[IORING_OP_READV] = {
.needs_file = 1,
@@ -5269,19 +5268,7 @@ static int io_nop_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe)
*/
static int io_nop(struct io_kiocb *req, unsigned int issue_flags)
{
- unsigned int cflags;
- void __user *buf;
-
- if (req->flags & REQ_F_BUFFER_SELECT) {
- size_t len = 1;
-
- buf = io_buffer_select(req, &len, issue_flags);
- if (!buf)
- return -ENOBUFS;
- }
-
- cflags = io_put_kbuf(req, issue_flags);
- __io_req_complete(req, issue_flags, 0, cflags);
+ __io_req_complete(req, issue_flags, 0, 0);
return 0;
}
--
2.36.1
