io_uring: remove iopoll_queue from struct io_issue_def

The opcode iopoll_queue flag is now redundant with REQ_F_IOPOLL. Only
io_{read,write}{,_fixed}() and io_uring_cmd() set the REQ_F_IOPOLL flag,
and the opcodes with these ->issue() implementations are precisely the
ones that set iopoll_queue. So don't bother checking the iopoll_queue
flag in io_issue_sqe(). Remove the unused flag from struct io_issue_def.

Signed-off-by: Caleb Sander Mateos <csander@purestorage.com>
Reviewed-by: Kanchan Joshi <joshi.k@samsung.com>
Reviewed-by: Anuj Gupta <anuj20.g@samsung.com>
Link: https://patch.msgid.link/20260302172914.2488599-3-csander@purestorage.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>

io_uring/io_uring.c

@@ -1417,8 +1417,7 @@ static int io_issue_sqe(struct io_kiocb *req, unsigned int issue_flags)
 	if (ret == IOU_ISSUE_SKIP_COMPLETE) {
 		ret = 0;
 
-		/* If the op doesn't have a file, we're not polling for it */
+		if (req->flags & REQ_F_IOPOLL)
-		if ((req->flags & REQ_F_IOPOLL) && def->iopoll_queue)
 			io_iopoll_req_issued(req, issue_flags);
 	}
 	return ret;

io_uring/opdef.c

@@ -67,7 +67,6 @@ const struct io_issue_def io_issue_defs[] = {
 		.audit_skip		= 1,
 		.ioprio			= 1,
 		.iopoll			= 1,
-		.iopoll_queue		= 1,
 		.vectored		= 1,
 		.async_size		= sizeof(struct io_async_rw),
 		.prep			= io_prep_readv,
@@ -82,7 +81,6 @@ const struct io_issue_def io_issue_defs[] = {
 		.audit_skip		= 1,
 		.ioprio			= 1,
 		.iopoll			= 1,
-		.iopoll_queue		= 1,
 		.vectored		= 1,
 		.async_size		= sizeof(struct io_async_rw),
 		.prep			= io_prep_writev,
@@ -102,7 +100,6 @@ const struct io_issue_def io_issue_defs[] = {
 		.audit_skip		= 1,
 		.ioprio			= 1,
 		.iopoll			= 1,
-		.iopoll_queue		= 1,
 		.async_size		= sizeof(struct io_async_rw),
 		.prep			= io_prep_read_fixed,
 		.issue			= io_read_fixed,
@@ -116,7 +113,6 @@ const struct io_issue_def io_issue_defs[] = {
 		.audit_skip		= 1,
 		.ioprio			= 1,
 		.iopoll			= 1,
-		.iopoll_queue		= 1,
 		.async_size		= sizeof(struct io_async_rw),
 		.prep			= io_prep_write_fixed,
 		.issue			= io_write_fixed,
@@ -250,7 +246,6 @@ const struct io_issue_def io_issue_defs[] = {
 		.audit_skip		= 1,
 		.ioprio			= 1,
 		.iopoll			= 1,
-		.iopoll_queue		= 1,
 		.async_size		= sizeof(struct io_async_rw),
 		.prep			= io_prep_read,
 		.issue			= io_read,
@@ -264,7 +259,6 @@ const struct io_issue_def io_issue_defs[] = {
 		.audit_skip		= 1,
 		.ioprio			= 1,
 		.iopoll			= 1,
-		.iopoll_queue		= 1,
 		.async_size		= sizeof(struct io_async_rw),
 		.prep			= io_prep_write,
 		.issue			= io_write,
@@ -423,7 +417,6 @@ const struct io_issue_def io_issue_defs[] = {
 		.needs_file		= 1,
 		.plug			= 1,
 		.iopoll			= 1,
-		.iopoll_queue		= 1,
 		.async_size		= sizeof(struct io_async_cmd),
 		.prep			= io_uring_cmd_prep,
 		.issue			= io_uring_cmd,
@@ -556,7 +549,6 @@ const struct io_issue_def io_issue_defs[] = {
 		.audit_skip		= 1,
 		.ioprio			= 1,
 		.iopoll			= 1,
-		.iopoll_queue		= 1,
 		.vectored		= 1,
 		.async_size		= sizeof(struct io_async_rw),
 		.prep			= io_prep_readv_fixed,
@@ -571,7 +563,6 @@ const struct io_issue_def io_issue_defs[] = {
 		.audit_skip		= 1,
 		.ioprio			= 1,
 		.iopoll			= 1,
-		.iopoll_queue		= 1,
 		.vectored		= 1,
 		.async_size		= sizeof(struct io_async_rw),
 		.prep			= io_prep_writev_fixed,
@@ -593,7 +584,6 @@ const struct io_issue_def io_issue_defs[] = {
 		.needs_file		= 1,
 		.plug			= 1,
 		.iopoll			= 1,
-		.iopoll_queue		= 1,
 		.is_128			= 1,
 		.async_size		= sizeof(struct io_async_cmd),
 		.prep			= io_uring_cmd_prep,

io_uring/opdef.h

@@ -25,8 +25,6 @@ struct io_issue_def {
 	unsigned		poll_exclusive : 1;
 	/* skip auditing */
 	unsigned		audit_skip : 1;
-	/* have to be put into the iopoll list */
-	unsigned		iopoll_queue : 1;
 	/* vectored opcode, set if 1) vectored, and 2) handler needs to know */
 	unsigned		vectored : 1;
 	/* set to 1 if this opcode uses 128b sqes in a mixed sq */