From patchwork Fri Jan 22 20:47:52 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Omar Sandoval X-Patchwork-Id: 12040607 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 41CABC433E0 for ; Fri, 22 Jan 2021 21:11:18 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 01ED823A7A for ; Fri, 22 Jan 2021 21:11:17 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730033AbhAVVLM (ORCPT ); Fri, 22 Jan 2021 16:11:12 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49756 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1731057AbhAVUxe (ORCPT ); Fri, 22 Jan 2021 15:53:34 -0500 Received: from mail-pj1-x102c.google.com (mail-pj1-x102c.google.com [IPv6:2607:f8b0:4864:20::102c]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 907F0C0698D4 for ; Fri, 22 Jan 2021 12:48:40 -0800 (PST) Received: by mail-pj1-x102c.google.com with SMTP id g15so4662716pjd.2 for ; Fri, 22 Jan 2021 12:48:40 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=osandov-com.20150623.gappssmtp.com; s=20150623; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=iHS144DxLbBMpm965BQLT7zCwBiEuqsfigSMglTrs0I=; b=VfGysgsvrue0+3LQNRCUg+NcyLTA13X5zLrIvchmLAMCkBiPfUgnFSEvCoYc2xTsUD hK6Wfo1YDgwp7fRN+5davLhgmNJ7CZ4771kF/bWvDL9Rn0R+icDso+Jeqh2zw+MZJP+s CvOdP1Wat8pHJ5IcZlICIZkpViatpKV2Pz4RtNSGTBtBvEVnWRTrNViXE94PcZ1YEbem y/+dCaWWsXOlq29NJho6EJr6qH9PbEDtJKP8SFgCkp6/m1Ud3kL7Rz6Pjx3+GM+SX4jf YY+s266bOqAvu4jKPhiXlC5qMiRCSAcDd9AW771izjfoS6CZWIIC7R75smQQG9gt3yjs jyBw== 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=iHS144DxLbBMpm965BQLT7zCwBiEuqsfigSMglTrs0I=; b=JsdGhoPyS3/AIPMumF3fEHleIkUwNji65QwgwreM41UDRu3Z3XEjGO0zxU/yzmgRTz z6kIlGr3L45g4zEsRw8lOboQq/DL/j4+DH5kc2DK0Rb2A91n2X848SdrUYZlbidq8rKY XGTAYdIGwj74flhiwfQm+4LcygmdMraQJdUQDH5Y40MLGyEt6mHuJVXFW5jdbSH2ph4h NUKEylZOFvqIrhbN03ZcXGSmr8W5Ayhd3uiKcm5MMOup4Od/7/VRqqJ/OZ5swzvNV3FG XALTL5n9gLB/6qXYLInvvA5qFY12W18tT7jBdJCm13WzBZcY1VqNiTcmbfNEElE9rK3Z Qv9Q== X-Gm-Message-State: AOAM533UPqOocDOc4BGrVYwF6RBM7w1s0Z6aL3lWXK1LNPGQ3DNLn2Gg vjeGO2GHKlIEPQ9BLKVZaDgMRkeAEDV/+g== X-Google-Smtp-Source: ABdhPJzFXbgDRARyE4owNTTt/BocEaIJ9gaa9aJT7xlJClUZzGX1KC6ZGd9vG0G4mhUGanlObS+bCA== X-Received: by 2002:a17:902:7481:b029:df:e6bf:7e53 with SMTP id h1-20020a1709027481b02900dfe6bf7e53mr2559651pll.80.1611348519376; Fri, 22 Jan 2021 12:48:39 -0800 (PST) Received: from relinquished.tfbnw.net ([2620:10d:c090:400::5:ea88]) by smtp.gmail.com with ESMTPSA id y16sm9865617pfb.83.2021.01.22.12.48.37 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 22 Jan 2021 12:48:37 -0800 (PST) From: Omar Sandoval To: linux-btrfs@vger.kernel.org Cc: linux-fsdevel@vger.kernel.org, kernel-team@fb.com Subject: [PATCH v3 5/5] btrfs: send: enable support for stream v2 and compressed writes Date: Fri, 22 Jan 2021 12:47:52 -0800 Message-Id: X-Mailer: git-send-email 2.30.0 In-Reply-To: References: MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-btrfs@vger.kernel.org From: Omar Sandoval Now that the new support is implemented, allow the ioctl to accept the flags and update the version in sysfs. Signed-off-by: Omar Sandoval --- fs/btrfs/send.c | 10 +++++++++- fs/btrfs/send.h | 2 +- include/uapi/linux/btrfs.h | 4 +++- 3 files changed, 13 insertions(+), 3 deletions(-) diff --git a/fs/btrfs/send.c b/fs/btrfs/send.c index 7516eba701af..cb824d1271fa 100644 --- a/fs/btrfs/send.c +++ b/fs/btrfs/send.c @@ -671,7 +671,10 @@ static int send_header(struct send_ctx *sctx) struct btrfs_stream_header hdr; strcpy(hdr.magic, BTRFS_SEND_STREAM_MAGIC); - hdr.version = cpu_to_le32(BTRFS_SEND_STREAM_VERSION); + if (sctx->flags & BTRFS_SEND_FLAG_STREAM_V2) + hdr.version = cpu_to_le32(2); + else + hdr.version = cpu_to_le32(1); return write_buf(sctx->send_filp, &hdr, sizeof(hdr), &sctx->send_off); @@ -7446,6 +7449,11 @@ long btrfs_ioctl_send(struct file *mnt_file, struct btrfs_ioctl_send_args *arg) ret = -EINVAL; goto out; } + if ((arg->flags & BTRFS_SEND_FLAG_COMPRESSED) && + !(arg->flags & BTRFS_SEND_FLAG_STREAM_V2)) { + ret = -EINVAL; + goto out; + } sctx = kzalloc(sizeof(struct send_ctx), GFP_KERNEL); if (!sctx) { diff --git a/fs/btrfs/send.h b/fs/btrfs/send.h index 9f4f7b96b1eb..9c83e14a43b2 100644 --- a/fs/btrfs/send.h +++ b/fs/btrfs/send.h @@ -10,7 +10,7 @@ #include "ctree.h" #define BTRFS_SEND_STREAM_MAGIC "btrfs-stream" -#define BTRFS_SEND_STREAM_VERSION 1 +#define BTRFS_SEND_STREAM_VERSION 2 /* * In send stream v1, no command is larger than 64k. In send stream v2, no limit diff --git a/include/uapi/linux/btrfs.h b/include/uapi/linux/btrfs.h index 93aa0932234e..b12a9a1a106c 100644 --- a/include/uapi/linux/btrfs.h +++ b/include/uapi/linux/btrfs.h @@ -786,7 +786,9 @@ struct btrfs_ioctl_received_subvol_args { #define BTRFS_SEND_FLAG_MASK \ (BTRFS_SEND_FLAG_NO_FILE_DATA | \ BTRFS_SEND_FLAG_OMIT_STREAM_HEADER | \ - BTRFS_SEND_FLAG_OMIT_END_CMD) + BTRFS_SEND_FLAG_OMIT_END_CMD | \ + BTRFS_SEND_FLAG_STREAM_V2 | \ + BTRFS_SEND_FLAG_COMPRESSED) struct btrfs_ioctl_send_args { __s64 send_fd; /* in */