linux-kernel - [PATCH] io_uring: use IO_REQ_LINK

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Message-ID: <20250211202002.3316324-1-csander@purestorage.com>
Date: Tue, 11 Feb 2025 13:19:56 -0700
From: Caleb Sander Mateos <csander@...estorage.com>
To: Jens Axboe <axboe@...nel.dk>,
	Pavel Begunkov <asml.silence@...il.com>
Cc: Caleb Sander Mateos <csander@...estorage.com>,
	io-uring@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH] io_uring: use IO_REQ_LINK_FLAGS more

Replace the 2 instances of REQ_F_LINK | REQ_F_HARDLINK with
the more commonly used IO_REQ_LINK_FLAGS.

Signed-off-by: Caleb Sander Mateos <csander@...estorage.com>
---
 io_uring/io_uring.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/io_uring/io_uring.c b/io_uring/io_uring.c
index ec98a0ec6f34..8bb8c099c3e1 100644
--- a/io_uring/io_uring.c
+++ b/io_uring/io_uring.c
@@ -108,15 +108,17 @@
 			  IOSQE_IO_HARDLINK | IOSQE_ASYNC)
 
 #define SQE_VALID_FLAGS	(SQE_COMMON_FLAGS | IOSQE_BUFFER_SELECT | \
 			IOSQE_IO_DRAIN | IOSQE_CQE_SKIP_SUCCESS)
 
+#define IO_REQ_LINK_FLAGS (REQ_F_LINK | REQ_F_HARDLINK)
+
 #define IO_REQ_CLEAN_FLAGS (REQ_F_BUFFER_SELECTED | REQ_F_NEED_CLEANUP | \
 				REQ_F_POLLED | REQ_F_INFLIGHT | REQ_F_CREDS | \
 				REQ_F_ASYNC_DATA)
 
-#define IO_REQ_CLEAN_SLOW_FLAGS (REQ_F_REFCOUNT | REQ_F_LINK | REQ_F_HARDLINK |\
+#define IO_REQ_CLEAN_SLOW_FLAGS (REQ_F_REFCOUNT | IO_REQ_LINK_FLAGS | \
 				 REQ_F_REISSUE | IO_REQ_CLEAN_FLAGS)
 
 #define IO_TCTX_REFS_CACHE_NR	(1U << 10)
 
 #define IO_COMPL_BATCH			32
@@ -129,11 +131,10 @@ struct io_defer_entry {
 	u32			seq;
 };
 
 /* requests with any of those set should undergo io_disarm_next() */
 #define IO_DISARM_MASK (REQ_F_ARM_LTIMEOUT | REQ_F_LINK_TIMEOUT | REQ_F_FAIL)
-#define IO_REQ_LINK_FLAGS (REQ_F_LINK | REQ_F_HARDLINK)
 
 /*
  * No waiters. It's larger than any valid value of the tw counter
  * so that tests against ->cq_wait_nr would fail and skip wake_up().
  */
@@ -1155,11 +1156,11 @@ static inline void io_req_local_work_add(struct io_kiocb *req,
 
 	/*
 	 * We don't know how many reuqests is there in the link and whether
 	 * they can even be queued lazily, fall back to non-lazy.
 	 */
-	if (req->flags & (REQ_F_LINK | REQ_F_HARDLINK))
+	if (req->flags & IO_REQ_LINK_FLAGS)
 		flags &= ~IOU_F_TWQ_LAZY_WAKE;
 
 	guard(rcu)();
 
 	head = READ_ONCE(ctx->work_llist.first);
-- 
2.45.2