From 16270893d71219816513a255e6c3163bc7224ce4 Mon Sep 17 00:00:00 2001
From: Pavel Begunkov <asml.silence@gmail.com>
Date: Mon, 1 Mar 2021 13:02:16 +0000
Subject: [PATCH] io_uring: remove sqo_task
Now, sqo_task is used only for a warning that is not interesting anymore
since sqo_dead is gone, remove all of that including ctx->sqo_task.
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
---
fs/io_uring.c | 10 ----------
1 file changed, 10 deletions(-)
diff --git a/fs/io_uring.c b/fs/io_uring.c
index 6090a380e903a..f060dcc1cc864 100644
--- a/fs/io_uring.c
+++ b/fs/io_uring.c
@@ -379,11 +379,6 @@ struct io_ring_ctx {
struct io_rings *rings;
- /*
- * For SQPOLL usage
- */
- struct task_struct *sqo_task;
-
/* Only used for accounting purposes */
struct mm_struct *mm_account;
@@ -8747,10 +8742,6 @@ static int io_uring_add_task_file(struct io_ring_ctx *ctx, struct file *file)
fput(file);
return ret;
}
-
- /* one and only SQPOLL file note, held by sqo_task */
- WARN_ON_ONCE((ctx->flags & IORING_SETUP_SQPOLL) &&
- current != ctx->sqo_task);
}
tctx->last = file;
}
@@ -9376,7 +9367,6 @@ static int io_uring_create(unsigned entries, struct io_uring_params *p,
ctx->compat = in_compat_syscall();
if (!capable(CAP_IPC_LOCK))
ctx->user = get_uid(current_user());
- ctx->sqo_task = current;
/*
* This is just grabbed for accounting purposes. When a process exits,
--
2.30.2