From: Jens Axboe <axboe@kernel.dk>
To: Caleb Sander Mateos <csander@purestorage.com>
Cc: io-uring@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH v2 2/5] io_uring/rsrc: respect submitter_task in io_register_clone_buffers()
Date: Tue, 9 Sep 2025 07:35:00 -0600 [thread overview]
Message-ID: <4c322a03-058f-4caa-a741-7dfec0d3c55b@kernel.dk> (raw)
In-Reply-To: <20250904170902.2624135-3-csander@purestorage.com>
On 9/4/25 11:08 AM, Caleb Sander Mateos wrote:
> diff --git a/io_uring/rsrc.c b/io_uring/rsrc.c
> index 2d15b8785a95..1e5b7833076a 100644
> --- a/io_uring/rsrc.c
> +++ b/io_uring/rsrc.c
> @@ -1298,14 +1298,21 @@ int io_register_clone_buffers(struct io_ring_ctx *ctx, void __user *arg)
>
> src_ctx = file->private_data;
> if (src_ctx != ctx) {
> mutex_unlock(&ctx->uring_lock);
> lock_two_rings(ctx, src_ctx);
> +
> + if (src_ctx->submitter_task &&
> + src_ctx->submitter_task != current) {
> + ret = -EEXIST;
> + goto out;
> + }
Spurious end-of-line space detected here, pruned while merging.
--
Jens Axboe
next prev parent reply other threads:[~2025-09-09 13:35 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-09-04 17:08 [PATCH v2 0/5] io_uring: avoid uring_lock for IORING_SETUP_SINGLE_ISSUER Caleb Sander Mateos
2025-09-04 17:08 ` [PATCH v2 1/5] io_uring: don't include filetable.h in io_uring.h Caleb Sander Mateos
2025-09-04 17:08 ` [PATCH v2 2/5] io_uring/rsrc: respect submitter_task in io_register_clone_buffers() Caleb Sander Mateos
2025-09-09 13:35 ` Jens Axboe [this message]
2025-09-04 17:09 ` [PATCH v2 3/5] io_uring: clear IORING_SETUP_SINGLE_ISSUER for IORING_SETUP_SQPOLL Caleb Sander Mateos
2025-09-08 14:13 ` Jens Axboe
2025-09-08 18:11 ` Caleb Sander Mateos
2025-09-08 19:19 ` Jens Axboe
2025-09-04 17:09 ` [PATCH v2 4/5] io_uring: factor out uring_lock helpers Caleb Sander Mateos
2025-09-04 17:09 ` [PATCH v2 5/5] io_uring: avoid uring_lock for IORING_SETUP_SINGLE_ISSUER Caleb Sander Mateos
2025-09-08 19:20 ` Jens Axboe
2025-09-09 13:35 ` [PATCH v2 0/5] " Jens Axboe
2025-09-10 11:57 ` Pavel Begunkov
2025-09-10 15:36 ` Jens Axboe
2025-09-11 10:36 ` Pavel Begunkov
2025-09-30 23:37 ` Caleb Sander Mateos
2025-11-03 20:47 ` Caleb Sander Mateos
2025-09-11 16:14 ` Caleb Sander Mateos
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