diff options
| author | Jens Axboe <axboe@kernel.dk> | 2021-02-28 12:23:27 -0700 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2021-03-04 06:37:03 -0700 |
| commit | 0d30b3e7eea94cc818fadf2ac0dd189c616028f8 (patch) | |
| tree | 6be9fe733049053511fdb3a49d5d9f8b27d83542 | |
| parent | 914390bcfdd6351a4d308da7f43294476ea7d3bf (diff) | |
| download | linux-0d30b3e7eea94cc818fadf2ac0dd189c616028f8.tar.gz | |
io_uring: kill io_uring_flush()
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@kernel.dk>
| -rw-r--r-- | fs/io_uring.c | 47 |
1 files changed, 0 insertions, 47 deletions
diff --git a/fs/io_uring.c b/fs/io_uring.c index 7cad82b51eca1e..766df21769a839 100644 --- a/fs/io_uring.c +++ b/fs/io_uring.c @@ -8914,52 +8914,6 @@ void __io_uring_task_cancel(void) __io_uring_free(current); } -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) { @@ -9291,7 +9245,6 @@ 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, |