This was always a weird work-around or file referencing, and we don't
need it anymore. Get rid of it.
Signed-off-by: Jens Axboe <axboe@xxxxxxxxx>
---
fs/io_uring.c | 47 -----------------------------------------------
1 file changed, 47 deletions(-)
diff --git a/fs/io_uring.c b/fs/io_uring.c
index def9da1ddc3c..f6bc0254cd01 100644
--- a/fs/io_uring.c
+++ b/fs/io_uring.c
@@ -8932,52 +8932,6 @@ void __io_uring_unshare(void)
}
}
-static int io_uring_flush(struct file *file, void *data)
-{
- struct io_uring_task *tctx = current->io_uring;
- struct io_ring_ctx *ctx = file->private_data;
-
- /* Ignore helper thread files exit */
- if (current->flags & PF_IO_WORKER)
- return 0;
-
- if (fatal_signal_pending(current) || (current->flags & PF_EXITING)) {
- io_uring_cancel_task_requests(ctx, NULL);
- io_req_caches_free(ctx);
- }
-
- io_run_ctx_fallback(ctx);
-
- if (!tctx)
- return 0;
-
- /* we should have cancelled and erased it before PF_EXITING */
- WARN_ON_ONCE((current->flags & PF_EXITING) &&
- xa_load(&tctx->xa, (unsigned long)file));
-
- /*
- * fput() is pending, will be 2 if the only other ref is our potential
- * task file note. If the task is exiting, drop regardless of count.
- */
- if (atomic_long_read(&file->f_count) != 2)
- return 0;
-
- if (ctx->flags & IORING_SETUP_SQPOLL) {
- /* there is only one file note, which is owned by sqo_task */
- WARN_ON_ONCE(ctx->sqo_task != current &&
- xa_load(&tctx->xa, (unsigned long)file));
- /* sqo_dead check is for when this happens after cancellation */
- WARN_ON_ONCE(ctx->sqo_task == current && !ctx->sqo_dead &&
- !xa_load(&tctx->xa, (unsigned long)file));
-
- io_disable_sqo_submit(ctx);
- }
-
- if (!(ctx->flags & IORING_SETUP_SQPOLL) || ctx->sqo_task == current)
- io_uring_del_task_file(file);
- return 0;
-}
-
static void *io_uring_validate_mmap_request(struct file *file,
loff_t pgoff, size_t sz)
{
@@ -9313,7 +9267,6 @@ static void io_uring_show_fdinfo(struct seq_file *m, struct file *f)
static const struct file_operations io_uring_fops = {
.release = io_uring_release,
- .flush = io_uring_flush,
.mmap = io_uring_mmap,
#ifndef CONFIG_MMU
.get_unmapped_area = io_uring_nommu_get_unmapped_area,
--
2.30.1
