From patchwork Thu Jun 30 09:13:38 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Pavel Begunkov X-Patchwork-Id: 12901474 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 5B7F5CCA47B for ; Thu, 30 Jun 2022 09:17:34 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234283AbiF3JRV (ORCPT ); Thu, 30 Jun 2022 05:17:21 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44740 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234246AbiF3JQz (ORCPT ); Thu, 30 Jun 2022 05:16:55 -0400 Received: from mail-ej1-x62b.google.com (mail-ej1-x62b.google.com [IPv6:2a00:1450:4864:20::62b]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 9B124205DA for ; Thu, 30 Jun 2022 02:15:46 -0700 (PDT) Received: by mail-ej1-x62b.google.com with SMTP id fi2so37687256ejb.9 for ; Thu, 30 Jun 2022 02:15:46 -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=QrDJbv7hodxTmOkHyYFWVJ4gHQ4HcCzGLPo//xF4i0I=; b=HWEaI/HGZOPZ3J1/ERd4jeXVU3l1DButGaxeCiP7RCpwXoHbRlKqhio/yp8XwrZ8Cr pRRueFjvosPJ9EPL4bhl7TwCOUq4QJkyjCtVZsv0Z+7EQZcJxyX4iwVEhX9TzxAAC5hB lcLU7BopUKDYcjyBCcYQKW/I9ns1/jJSvxtdfnzsS4PpxvxfJTmtBRWg9VSxYqayw8B0 O6Nj0wjh+ex5CQ/u/mXpBO6Zt3rfwjXjWRfiwtO5o+PlRt48HxedAZpHOMJ8PeqbYSxt kfQpWCAp4GtSHRGuhVXCTY+sCxbZ2iiKuYO7C7Orw/1A9J7H1vNJBOU4fEtvtAkg1AsT mULA== 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=QrDJbv7hodxTmOkHyYFWVJ4gHQ4HcCzGLPo//xF4i0I=; b=k02m1Hx6KpXH4ZjXyZlqBCpuWINv4n/tLAdOVqiecQnfi1QI8vLYwbejL90wkZfHat zPAp8PQ+S4IKswBj+8RlCigIwM7pAa82LMI9GMOAG5OOBWPFqeqflwZsmXWQyYoF0vDu poFqdhe6hs+76IyguwjQthptvi5avXD8hpTu1aGJHpxk2hBbqjtF8J3653KQzUK62Ejo KqEXB3T/3J9cREFHJqDbpEvqYDkW5NVX5FXrBamd9+VWtL5/87rv5hKVSf7gJkEuXE3C rdldZ3xE7DW44HFT+jdkRzxER7PzwsOj8ziQhyrP/nlVCjQWugGim99XQq7ruVdvZAaV Fdww== X-Gm-Message-State: AJIora/fBlZwDtB0XnEC7F1PIg9wGwb55Z0hYKSrm2ozyEa5/G3z97WE VzcwzCBvBjqAviPiKbLkexxk+1ydLaSUyw== X-Google-Smtp-Source: AGRyM1vGVimGeoRHt6aY8qkrZs/FqNJ4l+8QN+Rmn0Y3YRwzh/CMwXC+fQ5MymVFUWFLgboSQ5Q+CA== X-Received: by 2002:a17:907:7f90:b0:726:e8ed:3c28 with SMTP id qk16-20020a1709077f9000b00726e8ed3c28mr7971031ejc.63.1656580544526; Thu, 30 Jun 2022 02:15:44 -0700 (PDT) Received: from 127.0.0.1localhost.com ([2620:10d:c092:600::2:a3ae]) by smtp.gmail.com with ESMTPSA id s10-20020a1709060c0a00b0070beb9401d9sm8884925ejf.171.2022.06.30.02.15.43 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 30 Jun 2022 02:15:44 -0700 (PDT) From: Pavel Begunkov To: io-uring@vger.kernel.org Cc: Jens Axboe , asml.silence@gmail.com Subject: [PATCH for-next 2/3] alloc range helpers Date: Thu, 30 Jun 2022 10:13:38 +0100 Message-Id: <218118e4343c04010e9142e14627a7f580f7bca5.1656580293.git.asml.silence@gmail.com> 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/register.c | 14 ++++++++++++++ 2 files changed, 17 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/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); +}