[PATCH 2/4] io_uring: add multishot_flags constant in io_wq_submit_work()

[Caleb Sander Mateos <csander@purestorage.com>]

REQ_F_MULTISHOT|REQ_F_APOLL_MULTISHOT is repeated twice in
io_wq_submit_work(). Introduce a constant variable multishot_flags for
it to reduce the repetition.

Signed-off-by: Caleb Sander Mateos <csander@purestorage.com>
---
 io_uring/io_uring.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/io_uring/io_uring.c b/io_uring/io_uring.c
index 5db57bf675f0..28ef95851510 100644
--- a/io_uring/io_uring.c
+++ b/io_uring/io_uring.c
@@ -1617,10 +1617,11 @@ void io_wq_free_work(struct io_wq_work *work)
 void io_wq_submit_work(struct io_wq_work *work)
 {
 	struct io_kiocb *req = container_of(work, struct io_kiocb, work);
 	const struct io_issue_def *def = &io_issue_defs[req->opcode];
 	unsigned int issue_flags = IO_URING_F_UNLOCKED | IO_URING_F_IOWQ;
+	io_req_flags_t multishot_flags = REQ_F_MULTISHOT|REQ_F_APOLL_MULTISHOT;
 	bool needs_poll = false;
 	int ret = 0, err = -ECANCELED;
 
 	/* one will be dropped by io_wq_put_work() after returning to io-wq */
 	if (!(req->flags & REQ_F_REFCOUNT))
@@ -1647,22 +1648,22 @@ void io_wq_submit_work(struct io_wq_work *work)
 	 * right context, however this is not the case of auxiliary CQEs,
 	 * which is the main mean of operation for multishot requests.
 	 * Don't allow any multishot execution from io-wq. It's more restrictive
 	 * than necessary and also cleaner.
 	 */
-	if (req->flags & (REQ_F_MULTISHOT|REQ_F_APOLL_MULTISHOT)) {
+	if (req->flags & multishot_flags) {
 		err = -EBADFD;
 		if (!io_file_can_poll(req))
 			goto fail;
 		if (req->file->f_flags & O_NONBLOCK ||
 		    req->file->f_mode & FMODE_NOWAIT) {
 			err = -ECANCELED;
 			if (io_arm_poll_handler(req, issue_flags) != IO_APOLL_OK)
 				goto fail;
 			return;
 		} else {
-			req->flags &= ~(REQ_F_APOLL_MULTISHOT|REQ_F_MULTISHOT);
+			req->flags &= ~multishot_flags;
 		}
 	}
 
 	if (req->flags & REQ_F_FORCE_ASYNC) {
 		bool opcode_poll = def->pollin || def->pollout;
-- 
2.56.1