From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.133.124]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id AC758366 for ; Sat, 11 May 2024 00:15:11 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=170.10.133.124 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1715386513; cv=none; b=qL5g0H2hErTSo8jK9a1Yep97zvON3cvBuSOuEx8L5GUPQKPSJAVW1t0oIzkKZ1afjm3lJWFmrUPDvX6poLJsps4/IU2EyiTE4L4RG13GzVTSJEC4THcXX/7CHom0bhD9hUTVyxn5gZxCBe/QQKOyBInJWynX+Cw/uSDXmV2kizY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1715386513; c=relaxed/simple; bh=MKegbj/sSG6GrSO39MvSbwAdhEM0ymmBOZm1pzPMUtE=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=k7iGsXs56JaoZoQw3Pk563GsdyuGdCeMjHiQ8a3bBeXp4GClTs5D9CxV2HL5NmnMYr7uVQYf79MDs6ZpaXQSIl1ZdIJL+xuzhuYd68CB/jRgO1XEVFfBl73UcICqMcy01HmLMEdXVmbSdcN05PSFQo8hgGX9zvuHdVIwsXVoQEU= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=redhat.com; spf=pass smtp.mailfrom=redhat.com; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b=EM5YuGiM; arc=none smtp.client-ip=170.10.133.124 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=redhat.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=redhat.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="EM5YuGiM" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1715386510; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=lKTTtY1y7k7AmfzI2jF98Rd0+0s+DQV8PWG07tTxXmY=; b=EM5YuGiMDF/oTi07wzNicjp1VIJVABF85ImpA78zUjtdccM3IsLYRTeEETJyX0kxdNIH2i EBobPIx9Iv6yJCIRJ+dCr30sJwq6b9P2OYM8efX2qrMK0jTLD4zs9zGnfTLgj6IPjeKaTG r/OdFJx+tTAAVKsopFfDxTflE3H+82U= Received: from mimecast-mx02.redhat.com (mx-ext.redhat.com [66.187.233.73]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-626-CmKsSaIfNuu7FDFw8nCyNA-1; Fri, 10 May 2024 20:12:30 -0400 X-MC-Unique: CmKsSaIfNuu7FDFw8nCyNA-1 Received: from smtp.corp.redhat.com (int-mx04.intmail.prod.int.rdu2.redhat.com [10.11.54.4]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id BDA691C01718; Sat, 11 May 2024 00:12:29 +0000 (UTC) Received: from localhost (unknown [10.72.116.30]) by smtp.corp.redhat.com (Postfix) with ESMTP id C8F572079B08; Sat, 11 May 2024 00:12:28 +0000 (UTC) From: Ming Lei To: Jens Axboe , io-uring@vger.kernel.org Cc: linux-block@vger.kernel.org, Pavel Begunkov , Kevin Wolf , Ming Lei Subject: [PATCH V3 2/9] io_uring: add io_submit_fail_link() helper Date: Sat, 11 May 2024 08:12:05 +0800 Message-ID: <20240511001214.173711-3-ming.lei@redhat.com> In-Reply-To: <20240511001214.173711-1-ming.lei@redhat.com> References: <20240511001214.173711-1-ming.lei@redhat.com> Precedence: bulk X-Mailing-List: io-uring@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Scanned-By: MIMEDefang 3.4.1 on 10.11.54.4 Add io_submit_fail_link() helper and put linking fail logic into this helper. This way simplifies io_submit_fail_init(), and becomes easier to add sqe group failing logic. Signed-off-by: Ming Lei --- io_uring/io_uring.c | 22 ++++++++++++++++------ 1 file changed, 16 insertions(+), 6 deletions(-) diff --git a/io_uring/io_uring.c b/io_uring/io_uring.c index c02c9291a2df..d3b9988cdae4 100644 --- a/io_uring/io_uring.c +++ b/io_uring/io_uring.c @@ -2135,22 +2135,17 @@ static int io_init_req(struct io_ring_ctx *ctx, struct io_kiocb *req, return def->prep(req, sqe); } -static __cold int io_submit_fail_init(const struct io_uring_sqe *sqe, +static __cold int io_submit_fail_link(struct io_submit_link *link, struct io_kiocb *req, int ret) { - struct io_ring_ctx *ctx = req->ctx; - struct io_submit_link *link = &ctx->submit_state.link; struct io_kiocb *head = link->head; - trace_io_uring_req_failed(sqe, req, ret); - /* * Avoid breaking links in the middle as it renders links with SQPOLL * unusable. Instead of failing eagerly, continue assembling the link if * applicable and mark the head with REQ_F_FAIL. The link flushing code * should find the flag and handle the rest. */ - req_fail_link_node(req, ret); if (head && !(head->flags & REQ_F_FAIL)) req_fail_link_node(head, -ECANCELED); @@ -2169,9 +2164,24 @@ static __cold int io_submit_fail_init(const struct io_uring_sqe *sqe, else link->head = req; link->last = req; + return 0; } +static __cold int io_submit_fail_init(const struct io_uring_sqe *sqe, + struct io_kiocb *req, int ret) +{ + struct io_ring_ctx *ctx = req->ctx; + struct io_submit_link *link = &ctx->submit_state.link; + + trace_io_uring_req_failed(sqe, req, ret); + + req_fail_link_node(req, ret); + + /* cover both linked and non-linked request */ + return io_submit_fail_link(link, req, ret); +} + /* * Return NULL if nothing to be queued, otherwise return request for queueing */ static struct io_kiocb *io_link_sqe(struct io_submit_link *link, -- 2.42.0