From patchwork Thu Jun 30 14:10:14 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Pavel Begunkov X-Patchwork-Id: 12901930 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 77B25CCA481 for ; Thu, 30 Jun 2022 14:27:50 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235520AbiF3O1u (ORCPT ); Thu, 30 Jun 2022 10:27:50 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:36150 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S237219AbiF3O1b (ORCPT ); Thu, 30 Jun 2022 10:27:31 -0400 Received: from mail-wr1-x432.google.com (mail-wr1-x432.google.com [IPv6:2a00:1450:4864:20::432]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 85D8C7B35E for ; Thu, 30 Jun 2022 07:10:58 -0700 (PDT) Received: by mail-wr1-x432.google.com with SMTP id e28so22350191wra.0 for ; Thu, 30 Jun 2022 07:10:57 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=iv9sCq1Dh8AT+NVbMp9Aj2CUQWJDfbOKsX2SJqvDIl4=; b=dE9k0pS6IjzW/AVEDtl7LNSTBZuH+yN+gnl3bITkD1RVNHoSUeCgF5FDjwa5RulgQE /ZQoiE+9M05QacQSxF/W7zvMbcXP10EkUROqQ7keafWFTJyCdOOMA85xx0k0TYvn9oF8 sccMflHhfMSoxb2IWzqFyAVI0rHYxkMrtIWs4hy3NBxoeEAf2fT8RK06rOus4Qxc/v2U VmqeNNMQViiZA1gYsE4ozyIguAroSW4fSVxqN+RIy9YS22MJ7+EjDEtOxLDCmv74T8vZ OgrVeWylsdzTJ4eN4hdB/TuuHpi7uBwdFrmihsoLatKVm2lqV/zkXGnEhUC6VH9goZA3 y/YA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=iv9sCq1Dh8AT+NVbMp9Aj2CUQWJDfbOKsX2SJqvDIl4=; b=SpbYG87oE0ozbIWuwft3iFQmEMfhQ1osTKRHEbe4WxgDL/pAL2gKSNRCNwnHFpSYRe L9kK2qXjGiIN06bb/xp99EgQ1lIA/ve39iWMVfnTC5IuEMEIjpoFIcSmtaYE/a4ODWFH vcWdioCQ6f4kTLMDA+nW/2wm+l0IPCXFa7Tpfl68aTQeNAwY7hoQfoCruPvbqx/5E/J6 Lv+0RX1azy5+uy8ROhkKre50cL0twFAX2BUr5AVA/dcTFk+4vXhO9ABHA+lsoo85mB79 CZj82e3dmHtCwt+YqLosg5DiIiWXdaadsfJSKaIJIhdrrrZdw3dcsASS5O15FvX/G5DC Lxnw== X-Gm-Message-State: AJIora8h/uujNcIbA+hH4y631ahwJRcwObp8dHGXZ1/W0xLN7NVhQkak 7mwCdOLdy+Jwm/O+44VugJ0zm9Uk7RIdiQ== X-Google-Smtp-Source: AGRyM1u2Ww9dxK7CycMWG+T8SuS+t/QgBZoZyYnuEMZS2Mu6KAmWQh+kBcTJTJeqgjiW7N+oR6QF3g== X-Received: by 2002:a05:6000:10c4:b0:21b:8ea4:a27a with SMTP id b4-20020a05600010c400b0021b8ea4a27amr8642291wrx.575.1656598238918; Thu, 30 Jun 2022 07:10:38 -0700 (PDT) Received: from 127.0.0.1localhost (82-132-232-9.dab.02.net. [82.132.232.9]) by smtp.gmail.com with ESMTPSA id ay29-20020a05600c1e1d00b003a03be171b1sm3741392wmb.43.2022.06.30.07.10.37 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 30 Jun 2022 07:10:38 -0700 (PDT) From: Pavel Begunkov To: io-uring@vger.kernel.org Cc: Jens Axboe , asml.silence@gmail.com Subject: [PATCH liburing v2 2/5] alloc range helpers Date: Thu, 30 Jun 2022 15:10:14 +0100 Message-Id: X-Mailer: git-send-email 2.36.1 In-Reply-To: References: MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: io-uring@vger.kernel.org Signed-off-by: Pavel Begunkov --- src/include/liburing.h | 3 +++ src/liburing.map | 1 + src/register.c | 14 ++++++++++++++ 3 files changed, 18 insertions(+) diff --git a/src/include/liburing.h b/src/include/liburing.h index bb2fb87..45b4da0 100644 --- a/src/include/liburing.h +++ b/src/include/liburing.h @@ -186,6 +186,9 @@ int io_uring_unregister_buf_ring(struct io_uring *ring, int bgid); int io_uring_register_sync_cancel(struct io_uring *ring, struct io_uring_sync_cancel_reg *reg); +int io_uring_register_file_alloc_range(struct io_uring *ring, + unsigned off, unsigned len); + /* * Helper for the peek/wait single cqe functions. Exported because of that, * but probably shouldn't be used directly in an application. diff --git a/src/liburing.map b/src/liburing.map index a487865..318d3d7 100644 --- a/src/liburing.map +++ b/src/liburing.map @@ -59,4 +59,5 @@ LIBURING_2.2 { LIBURING_2.3 { global: io_uring_register_sync_cancel; + io_uring_register_file_alloc_range; } LIBURING_2.2; diff --git a/src/register.c b/src/register.c index f2b1026..ee370d6 100644 --- a/src/register.c +++ b/src/register.c @@ -352,3 +352,17 @@ int io_uring_register_sync_cancel(struct io_uring *ring, return ____sys_io_uring_register(ring->ring_fd, IORING_REGISTER_SYNC_CANCEL, reg, 1); } + +int io_uring_register_file_alloc_range(struct io_uring *ring, + unsigned off, unsigned len) +{ + struct io_uring_file_index_range range; + + memset(&range, 0, sizeof(range)); + range.off = off; + range.len = len; + + return ____sys_io_uring_register(ring->ring_fd, + IORING_REGISTER_FILE_ALLOC_RANGE, + &range, 0); +}