[PATCH 6.19 042/781] io_uring/eventfd: remove unused ctx->evfd_last_cq_tail member

Greg Kroah-Hartman
2026-02-25T01:27:32Z

From: Jens Axboe <axboe@kernel.dk>

[ Upstream commit 07f3c3a1cd56c2048a92dad0c11f15e4ac3888c1 ]

A previous commit got rid of any use of this member, but forgot to
remove it. Kill it.

Fixes: f4bb2f65bb81 ("io_uring/eventfd: move ctx->evfd_last_cq_tail into io_ev_fd")
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
include/linux/io_uring_types.h | 7 +++----
1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/include/linux/io_uring_types.h b/include/linux/io_uring_types.h
index a3e8ddc9b380f..4c9770536eb5d 100644
--- a/include/linux/io_uring_types.h
+++ b/include/linux/io_uring_types.h
@@ -444,6 +444,9 @@ struct io_ring_ctx {
struct list_head defer_list;
unsigned nr_drained;

+ /* protected by ->completion_lock */
+ unsigned nr_req_allocated;
+
#ifdef CONFIG_NET_RX_BUSY_POLL
struct list_head napi_list; /* track busy poll napi_id */
spinlock_t napi_lock; /* napi_list lock */
@@ -456,10 +459,6 @@ struct io_ring_ctx {
DECLARE_HASHTABLE(napi_ht, 4);
#endif

- /* protected by ->completion_lock */
- unsigned evfd_last_cq_tail;
- unsigned nr_req_allocated;
-
/*
* Protection for resize vs mmap races - both the mmap and resize
* side will need to grab this lock, to prevent either side from
--
2.51.0