From patchwork Fri Dec 13 18:36:23 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jens Axboe X-Patchwork-Id: 11290977 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 0DD2F109A for ; Fri, 13 Dec 2019 20:38:31 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id B65D8246D0 for ; Fri, 13 Dec 2019 20:38:30 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=kernel-dk.20150623.gappssmtp.com header.i=@kernel-dk.20150623.gappssmtp.com header.b="V1JgPYs9" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728807AbfLMSgh (ORCPT ); Fri, 13 Dec 2019 13:36:37 -0500 Received: from mail-io1-f66.google.com ([209.85.166.66]:33478 "EHLO mail-io1-f66.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728712AbfLMSgh (ORCPT ); Fri, 13 Dec 2019 13:36:37 -0500 Received: by mail-io1-f66.google.com with SMTP id s25so680071iob.0 for ; Fri, 13 Dec 2019 10:36:36 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel-dk.20150623.gappssmtp.com; s=20150623; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=U7isoIObpuRRvGbDmlJPXFmnp7SHo6u55T+05rXJIhk=; b=V1JgPYs9GYLnWWGbB/pAa3+atwjeMO5ZlhkFhkc8E/ahNRqhnIHvZxZ5/IAFVWkXpb Q+7gxX+Gsu3MkK+MvgcElGFhrv2iyB7Ezo/lYfw2V384/TKfGzXy6ajaOO93Bsfg7XfT DJ8jc79up0e5rQHS/5oOsDail4nKRqrAWe4MsgXfNdWZoBpd7pIddO/lMpUFyIsDxPXR vz5i9VqJGaHAUIs7xrC+32T0OmlpXwj2/yk5wROERWeZOYjEw6ordFM9J3zhsdbiz4jm ffZcD8K/3lvqlLgYNwHlT3byn1k0pnmOJmr4yVmTLCSmcd/RO7XTMDPBTymWH77fkQzt 7yxw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=U7isoIObpuRRvGbDmlJPXFmnp7SHo6u55T+05rXJIhk=; b=nrn2wruxYYIQ++OPuXOwVucBw/PPvx6Qvt0dp9F4MrxYG5DbVPqq0UpmmLFNtOEME9 TeqJR/F+RjH1KkG2ZkZO5ADp60ory5YZY1bzymLx8yge81Z8kxsAFnTBAPo7vsCsI8G3 gdV+l45miqsOpZ2fs2F61KXvVoLxDzzbJj6Vd4pG05PPrcd8/PYtBUnsEn5TyIPH7kpo Elvc2yuknLlP3ksn7NRTSjOcsd+VJhyMvvi8Cc99lWvnJs7/oA2zTMfmEfiNgG0QBI1X 6yxNNGeQXRFDBbEOgH30HuGYMkIAjOrTL8UVFsoHTywLmLmtipK+fO9L359r4x557BKI uuGg== X-Gm-Message-State: APjAAAX73V+qmnAX7KmX1mCwR7oJ74ltuFPhCl1qpNcMFUP89LrWpYk7 la1y57GkygrQiZLFf+QT4gGlYZdwQX2DAQ== X-Google-Smtp-Source: APXvYqyMCRq/HKzzM2Kr95H2+asaRrKeYF/lWVJBYnbOzJo8ilwYYQaltp9jY/K8CGHtVX4k9n192w== X-Received: by 2002:a6b:f60e:: with SMTP id n14mr8659684ioh.241.1576262196463; Fri, 13 Dec 2019 10:36:36 -0800 (PST) Received: from x1.thefacebook.com ([65.144.74.34]) by smtp.gmail.com with ESMTPSA id w24sm2932031ilk.4.2019.12.13.10.36.35 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 13 Dec 2019 10:36:35 -0800 (PST) From: Jens Axboe To: io-uring@vger.kernel.org Cc: linux-fsdevel@vger.kernel.org, Jens Axboe Subject: [PATCH 01/10] io_uring: add support for fallocate() Date: Fri, 13 Dec 2019 11:36:23 -0700 Message-Id: <20191213183632.19441-2-axboe@kernel.dk> X-Mailer: git-send-email 2.24.1 In-Reply-To: <20191213183632.19441-1-axboe@kernel.dk> References: <20191213183632.19441-1-axboe@kernel.dk> MIME-Version: 1.0 Sender: linux-fsdevel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-fsdevel@vger.kernel.org This exposes fallocate(2) through io_uring. Signed-off-by: Jens Axboe --- fs/io_uring.c | 29 +++++++++++++++++++++++++++++ include/uapi/linux/io_uring.h | 1 + 2 files changed, 30 insertions(+) diff --git a/fs/io_uring.c b/fs/io_uring.c index 9b1833fedc5c..d780477b9a56 100644 --- a/fs/io_uring.c +++ b/fs/io_uring.c @@ -1974,6 +1974,32 @@ static int io_fsync(struct io_kiocb *req, const struct io_uring_sqe *sqe, return 0; } +static int io_fallocate(struct io_kiocb *req, struct io_kiocb **nxt, + bool force_nonblock) +{ + const struct io_uring_sqe *sqe = req->sqe; + loff_t offset, len; + int ret, mode; + + if (sqe->ioprio || sqe->buf_index || sqe->rw_flags) + return -EINVAL; + + /* fallocate always requiring blocking context */ + if (force_nonblock) + return -EAGAIN; + + offset = READ_ONCE(sqe->off); + len = READ_ONCE(sqe->addr); + mode = READ_ONCE(sqe->len); + + ret = vfs_fallocate(req->file, mode, offset, len); + if (ret < 0) + req_set_fail_links(req); + io_cqring_add_event(req, ret); + io_put_req_find_next(req, nxt); + return 0; +} + static int io_prep_sfr(struct io_kiocb *req, const struct io_uring_sqe *sqe) { struct io_ring_ctx *ctx = req->ctx; @@ -2983,6 +3009,9 @@ static int io_issue_sqe(struct io_kiocb *req, struct io_kiocb **nxt, case IORING_OP_ASYNC_CANCEL: ret = io_async_cancel(req, req->sqe, nxt); break; + case IORING_OP_FALLOCATE: + ret = io_fallocate(req, nxt, force_nonblock); + break; default: ret = -EINVAL; break; diff --git a/include/uapi/linux/io_uring.h b/include/uapi/linux/io_uring.h index a3300e1b9a01..bdbe2b130179 100644 --- a/include/uapi/linux/io_uring.h +++ b/include/uapi/linux/io_uring.h @@ -76,6 +76,7 @@ enum { IORING_OP_ASYNC_CANCEL, IORING_OP_LINK_TIMEOUT, IORING_OP_CONNECT, + IORING_OP_FALLOCATE, /* this goes last, obviously */ IORING_OP_LAST,