From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) (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 552893F20F5 for ; Tue, 24 Mar 2026 16:38:20 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=170.10.129.124 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1774370301; cv=none; b=WHSJCSlDEShyAQGBM0ouUbMnku+B61WdUOnsvW8rnkHHXeY6fUA97OqXJF8xOtmkQCD4oDfFcsrKY/YMQcOZDxqAZ2v0RKjIDtdJbTFwtFNrxO7VX90vK++4tD/TpjdsSzghNxrHpazLay+kwfnc21HCRQcu8pn75vtKkfrFAsw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1774370301; c=relaxed/simple; bh=7oJx0y/cefMmwkpRYoxWVtAiRHqX2i8rUXOSpQdRbnE=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=Y5jcCY+h3UMb9Crd18V75AuN0PHOY46Egd82fxA+pBXHMDxJeNb+it7u7ZBLWQTotm7d35wxoB5aBZW8H29c361tyqvYhb4ev+bpfsDZg3URxAabxmgc1WdO401bXmdcvV157mqpuA3YTQSqq3TYWCog/M6Ya5S96l6WUy3rTpg= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine 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=CUUl1Gnw; arc=none smtp.client-ip=170.10.129.124 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine 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="CUUl1Gnw" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1774370299; 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=G2p367JjHvbIGM3vsXDgeydV6qwFkTGOj/cTJTWEYdw=; b=CUUl1GnwotSOKKvuKPXD842LYd2KDPA1ElwQh8BEOknnGMB3mLJc3LJ9jKXqs8XkmPpNW5 LtZABXz7xgU3GSRwcsXTY7mZvwmihIYe6pLuBvOeNn3R+k5bHTpi5MzQYQoA3h7JkkmjuC WZ/NelnXOwg+OzHdDA6EWTKJypBTi3U= Received: from mx-prod-mc-08.mail-002.prod.us-west-2.aws.redhat.com (ec2-35-165-154-97.us-west-2.compute.amazonaws.com [35.165.154.97]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-331-RWxcYAGuMMqgupeQVxTxkQ-1; Tue, 24 Mar 2026 12:38:14 -0400 X-MC-Unique: RWxcYAGuMMqgupeQVxTxkQ-1 X-Mimecast-MFC-AGG-ID: RWxcYAGuMMqgupeQVxTxkQ_1774370292 Received: from mx-prod-int-06.mail-002.prod.us-west-2.aws.redhat.com (mx-prod-int-06.mail-002.prod.us-west-2.aws.redhat.com [10.30.177.93]) (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 mx-prod-mc-08.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id 7A67918002D0; Tue, 24 Mar 2026 16:38:12 +0000 (UTC) Received: from localhost (unknown [10.72.116.133]) by mx-prod-int-06.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTP id 973501800107; Tue, 24 Mar 2026 16:38:11 +0000 (UTC) From: Ming Lei To: Jens Axboe , io-uring@vger.kernel.org Cc: Caleb Sander Mateos , Akilesh Kailash , bpf@vger.kernel.org, Xiao Ni , Alexei Starovoitov , Ming Lei Subject: [PATCH V3 01/12] io_uring: make io_import_fixed() global Date: Wed, 25 Mar 2026 00:37:22 +0800 Message-ID: <20260324163753.1900977-2-ming.lei@redhat.com> In-Reply-To: <20260324163753.1900977-1-ming.lei@redhat.com> References: <20260324163753.1900977-1-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 10.30.177.93 Refactor buffer import functions: - Make io_import_fixed() global so BPF kfuncs can use it directly - Make io_import_reg_buf() static inline in rsrc.h This allows BPF kfuncs to import buffers without associating them with a request, useful when one request has multiple buffers. Signed-off-by: Ming Lei --- io_uring/rsrc.c | 17 +++-------------- io_uring/rsrc.h | 18 +++++++++++++++--- 2 files changed, 18 insertions(+), 17 deletions(-) diff --git a/io_uring/rsrc.c b/io_uring/rsrc.c index 52554ed89b11..d65d3b4149f8 100644 --- a/io_uring/rsrc.c +++ b/io_uring/rsrc.c @@ -1046,9 +1046,9 @@ static int io_import_kbuf(int ddir, struct iov_iter *iter, return 0; } -static int io_import_fixed(int ddir, struct iov_iter *iter, - struct io_mapped_ubuf *imu, - u64 buf_addr, size_t len) +int io_import_fixed(int ddir, struct iov_iter *iter, + struct io_mapped_ubuf *imu, + u64 buf_addr, size_t len) { const struct bio_vec *bvec; size_t folio_mask; @@ -1117,17 +1117,6 @@ inline struct io_rsrc_node *io_find_buf_node(struct io_kiocb *req, return NULL; } -int io_import_reg_buf(struct io_kiocb *req, struct iov_iter *iter, - u64 buf_addr, size_t len, int ddir, - unsigned issue_flags) -{ - struct io_rsrc_node *node; - - node = io_find_buf_node(req, issue_flags); - if (!node) - return -EFAULT; - return io_import_fixed(ddir, iter, node->buf, buf_addr, len); -} /* Lock two rings at once. The rings must be different! */ static void lock_two_rings(struct io_ring_ctx *ctx1, struct io_ring_ctx *ctx2) diff --git a/io_uring/rsrc.h b/io_uring/rsrc.h index cff0f8834c35..cc68cba919ab 100644 --- a/io_uring/rsrc.h +++ b/io_uring/rsrc.h @@ -65,9 +65,21 @@ int io_rsrc_data_alloc(struct io_rsrc_data *data, unsigned nr); struct io_rsrc_node *io_find_buf_node(struct io_kiocb *req, unsigned issue_flags); -int io_import_reg_buf(struct io_kiocb *req, struct iov_iter *iter, - u64 buf_addr, size_t len, int ddir, - unsigned issue_flags); +int io_import_fixed(int ddir, struct iov_iter *iter, + struct io_mapped_ubuf *imu, + u64 buf_addr, size_t len); + +static inline int io_import_reg_buf(struct io_kiocb *req, struct iov_iter *iter, + u64 buf_addr, size_t len, int ddir, + unsigned issue_flags) +{ + struct io_rsrc_node *node; + + node = io_find_buf_node(req, issue_flags); + if (!node) + return -EFAULT; + return io_import_fixed(ddir, iter, node->buf, buf_addr, len); +} int io_import_reg_vec(int ddir, struct iov_iter *iter, struct io_kiocb *req, struct iou_vec *vec, unsigned nr_iovs, unsigned issue_flags); -- 2.53.0