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authorPavel Begunkov <asml.silence@gmail.com>2024-04-10 04:26:52 +0300
committerJens Axboe <axboe@kernel.dk>2024-04-15 17:10:26 +0300
commite45ec969d17acb0a1bea78c9c6c4403fceccd599 (patch)
tree42226420eec88edaa84faceeae9dba50daf2d206
parenta5bff51850c8d533f3696d45749ab169dd49f8dd (diff)
downloadlinux-e45ec969d17acb0a1bea78c9c6c4403fceccd599.tar.xz
io_uring: remove extra SQPOLL overflow flush
c1edbf5f081be ("io_uring: flag SQPOLL busy condition to userspace") added an extra overflowed CQE flush in the SQPOLL submission path due to backpressure, which was later removed. Remove the flush and let io_cqring_wait() / iopoll handle it. Signed-off-by: Pavel Begunkov <asml.silence@gmail.com> Link: https://lore.kernel.org/r/2a83b0724ca6ca9d16c7d79a51b77c81876b2e39.1712708261.git.asml.silence@gmail.com Signed-off-by: Jens Axboe <axboe@kernel.dk>
-rw-r--r--io_uring/io_uring.c2
1 files changed, 0 insertions, 2 deletions
diff --git a/io_uring/io_uring.c b/io_uring/io_uring.c
index 454d1d7695f6..885f701983d7 100644
--- a/io_uring/io_uring.c
+++ b/io_uring/io_uring.c
@@ -3238,8 +3238,6 @@ SYSCALL_DEFINE6(io_uring_enter, unsigned int, fd, u32, to_submit,
*/
ret = 0;
if (ctx->flags & IORING_SETUP_SQPOLL) {
- io_cqring_overflow_flush(ctx);
-
if (unlikely(ctx->sq_data->thread == NULL)) {
ret = -EOWNERDEAD;
goto out;