From patchwork Wed Sep 2 23:27:01 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Laurent Vivier X-Patchwork-Id: 274744 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=-13.0 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham 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 C14FFC433E7 for ; Wed, 2 Sep 2020 23:29:14 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 92755207D3 for ; Wed, 2 Sep 2020 23:29:14 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 92755207D3 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=vivier.eu Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:53818 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kDcBl-0007nI-Qp for qemu-devel@archiver.kernel.org; Wed, 02 Sep 2020 19:29:13 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:43258) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kDc9s-000411-B5 for qemu-devel@nongnu.org; Wed, 02 Sep 2020 19:27:16 -0400 Received: from mout.kundenserver.de ([217.72.192.73]:42957) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kDc9p-0004rW-AG for qemu-devel@nongnu.org; Wed, 02 Sep 2020 19:27:16 -0400 Received: from localhost.localdomain ([82.252.135.186]) by mrelayeu.kundenserver.de (mreue109 [212.227.15.183]) with ESMTPSA (Nemesis) id 1Mr9O4-1ksz861SYI-00oJQE; Thu, 03 Sep 2020 01:27:08 +0200 From: Laurent Vivier To: qemu-devel@nongnu.org Subject: [PULL 9/9] linux-user: Add support for btrfs ioctls used to scrub a filesystem Date: Thu, 3 Sep 2020 01:27:01 +0200 Message-Id: <20200902232701.13299-10-laurent@vivier.eu> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20200902232701.13299-1-laurent@vivier.eu> References: <20200902232701.13299-1-laurent@vivier.eu> MIME-Version: 1.0 X-Provags-ID: V03:K1:FbOUrguhhfiM7OosGDDPqj0/2XY0hrbALcGsIXLPDphSnIE1AQi E4xsLjGNh/oxcMl42+0VpgZRukVIrIEx7IGLmPdi4m2w/+yJ5DJh+UM/iTUs6HpVRw5Ysse OpDzkoEVn4+5l2nkelCJbLIc+/DgttMwCF33IWiC4zTr6i/7wsxCK12/bbW/RnQ5hCk95JP SCkM0rRNs/PlZ88KCSfBw== X-UI-Out-Filterresults: notjunk:1; V03:K0:+GQE7kHLKF4=:Wew5pawjjurEfTA1H2vMJ7 5udrLUNsl5X+GAJgub0QUU/J3KFhRoB2b8T8+xbKIhl+Jv9YO+bp3wUdpljQFBiZA4lBoNsBL +64CChk761wxWKKtiZtBNeJpYIwiA9zcDiZi2Tt0ar3IXoQi50hle4kILfG+vMyqWz4EAqjzP Ic0mwyS5WtSHX3f4v7op3wPsBW/2r2Ze342NqOklhRQzNc4MWxQWU3sDY41d9Yj4CMpdtHvyb cE812e1f787CRsXCkhGHbJJ5kIVoMGSHA2PcxrBPYD60HyipjS7zjAQrNW60s+FaS2XsllHv9 hl9E3scyXhP5v0UnLomGSeObvmfscR2gBZEqJHw5RB6qCvhOv0d9yYCk3Aw//aOBoVAJ+9Iol JUQTbgQ+qCfhODiNcivFePY8TR2ZaZcXWYiqS/1/54qNDErORM7Piu1Q1sDCs4999jY+nejUE loXUMDVJXsovzFfbJ4XBPRT62EQ9h+feIRMAwm4v1aHlxdjqYwptMphttnanbv1y+B1KSsnA+ o+UlrE+fg5fJKQeegxaWK7C/Zv6rcPcNBYRgc6shrGGkubifd/zAOmexspT0uwl6SE5vEZo1F wvwLCNEbwPzCrvLU4fV5g9nqhVn7ia7VZ7HsPa0qABa24sZi7yPHc/9J+NWcEJNiLvQ9n3L82 b9CINSBo98ROne82MiO1lYVCV0GraYgIDDtyZL79TaWmS7MhrZ4Rt+r0hrL7JcUcULO1RrvzI AMK6qcq1qomZMjWsXBK2wMvVxOWVAVwbUUqv7AnsTgMAy7b5q/FGOmSJcm6h+24v6Fyyg2oY+ O5nxm+KEvRSNDY5rUiA235mVw26cT+6rMeT8nArZNXjcQaWlMBFoPMU3F1Pya6m8IAyhao/ Received-SPF: none client-ip=217.72.192.73; envelope-from=laurent@vivier.eu; helo=mout.kundenserver.de X-detected-operating-system: by eggs.gnu.org: First seen = 2020/09/02 19:27:08 X-ACL-Warn: Detected OS = Linux 2.2.x-3.x [generic] X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H2=-0.001, SPF_HELO_NONE=0.001, SPF_NONE=0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: =?utf-8?q?Daniel_P_=2E_Berrang=C3=A9?= , Laurent Vivier , Filip Bozuta Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" From: Filip Bozuta This patch implements functionality for following ioctls: BTRFS_IOC_SCRUB - Starting a btrfs filesystem scrub Start a btrfs filesystem scrub. The third ioctls argument is a pointer to a following type: struct btrfs_ioctl_scrub_args { __u64 devid; /* in */ __u64 start; /* in */ __u64 end; /* in */ __u64 flags; /* in */ struct btrfs_scrub_progress progress; /* out */ /* pad to 1k */ __u64 unused[(1024-32-sizeof(struct btrfs_scrub_progress))/8]; }; Before calling this ioctl, field 'devid' should be filled with value that represents the device id of the btrfs filesystem for which the scrub is to be started. BTRFS_IOC_SCRUB_CANCEL - Canceling scrub of a btrfs filesystem Cancel a btrfs filesystem scrub if it is running. The third ioctls argument is ignored. BTRFS_IOC_SCRUB_PROGRESS - Getting status of a running scrub Read the status of a running btrfs filesystem scrub. The third ioctls argument is a pointer to the above mentioned 'struct btrfs_ioctl_scrub_args'. Similarly as with 'BTRFS_IOC_SCRUB', the 'devid' field should be filled with value that represents the id of the btrfs device for which the scrub has started. The status of a running scrub is returned in the field 'progress' which is of type 'struct btrfs_scrub_progress' and its definition can be found at: https://elixir.bootlin.com/linux/latest/source/include/uapi/linux/btrfs.h#L150 Implementation nots: Ioctls in this patch use type 'struct btrfs_ioctl_scrub_args' as their third argument. That is the reason why an aproppriate thunk type definition is added in file 'syscall_types.h'. Signed-off-by: Filip Bozuta Tested-by: Daniel P. Berrangé Message-Id: <20200823195014.116226-9-Filip.Bozuta@syrmia.com> Signed-off-by: Laurent Vivier --- linux-user/ioctls.h | 11 +++++++++++ linux-user/syscall_defs.h | 3 +++ linux-user/syscall_types.h | 29 +++++++++++++++++++++++++++++ 3 files changed, 43 insertions(+) diff --git a/linux-user/ioctls.h b/linux-user/ioctls.h index 42759c0778b4..585874f090ff 100644 --- a/linux-user/ioctls.h +++ b/linux-user/ioctls.h @@ -215,6 +215,17 @@ #ifdef BTRFS_IOC_SUBVOL_SETFLAGS IOCTL(BTRFS_IOC_SUBVOL_SETFLAGS, IOC_W, MK_PTR(TYPE_ULONGLONG)) #endif +#ifdef BTRFS_IOC_SCRUB + IOCTL(BTRFS_IOC_SCRUB, IOC_RW, + MK_PTR(MK_STRUCT(STRUCT_btrfs_ioctl_scrub_args))) +#endif +#ifdef BTRFS_IOC_SCRUB_CANCEL + IOCTL(BTRFS_IOC_SCRUB_CANCEL, 0, TYPE_NULL) +#endif +#ifdef BTRFS_IOC_SCRUB_PROGRESS + IOCTL(BTRFS_IOC_SCRUB_PROGRESS, IOC_RW, + MK_PTR(MK_STRUCT(STRUCT_btrfs_ioctl_scrub_args))) +#endif #ifdef BTRFS_IOC_DEV_INFO IOCTL(BTRFS_IOC_DEV_INFO, IOC_RW, MK_PTR(MK_STRUCT(STRUCT_btrfs_ioctl_dev_info_args))) diff --git a/linux-user/syscall_defs.h b/linux-user/syscall_defs.h index b557b07eec85..33a414c50f19 100644 --- a/linux-user/syscall_defs.h +++ b/linux-user/syscall_defs.h @@ -1020,6 +1020,9 @@ struct target_rtc_pll_info { abi_ullong) #define TARGET_BTRFS_IOC_SUBVOL_SETFLAGS TARGET_IOW(BTRFS_IOCTL_MAGIC, 26,\ abi_ullong) +#define TARGET_BTRFS_IOC_SCRUB TARGET_IOWRU(BTRFS_IOCTL_MAGIC, 27) +#define TARGET_BTRFS_IOC_SCRUB_CANCEL TARGET_IO(BTRFS_IOCTL_MAGIC, 28) +#define TARGET_BTRFS_IOC_SCRUB_PROGRESS TARGET_IOWRU(BTRFS_IOCTL_MAGIC, 29) #define TARGET_BTRFS_IOC_DEV_INFO TARGET_IOWRU(BTRFS_IOCTL_MAGIC, 30) #define TARGET_BTRFS_IOC_INO_PATHS TARGET_IOWRU(BTRFS_IOCTL_MAGIC, 35) #define TARGET_BTRFS_IOC_LOGICAL_INO TARGET_IOWRU(BTRFS_IOCTL_MAGIC, 36) diff --git a/linux-user/syscall_types.h b/linux-user/syscall_types.h index 51d9931b9546..ba2c1518eb5c 100644 --- a/linux-user/syscall_types.h +++ b/linux-user/syscall_types.h @@ -425,6 +425,35 @@ STRUCT(btrfs_ioctl_ino_lookup_user_args, MK_ARRAY(TYPE_CHAR, BTRFS_INO_LOOKUP_USER_PATH_MAX)) /* path */ #endif +#if defined(BTRFS_IOC_SCRUB) || defined(BTRFS_IOC_SCRUB_PROGRESS) +STRUCT(btrfs_scrub_progress, + TYPE_ULONGLONG, /* data_extents_scrubbed */ + TYPE_ULONGLONG, /* tree_extents_scrubbed */ + TYPE_ULONGLONG, /* data_bytes_scrubbed */ + TYPE_ULONGLONG, /* tree_bytes_scrubbed */ + TYPE_ULONGLONG, /* read_errors */ + TYPE_ULONGLONG, /* csum_errors */ + TYPE_ULONGLONG, /* verify_errors */ + TYPE_ULONGLONG, /* no_csum */ + TYPE_ULONGLONG, /* csum_discards */ + TYPE_ULONGLONG, /* super_errors */ + TYPE_ULONGLONG, /* malloc_errors */ + TYPE_ULONGLONG, /* uncorrectable_errors */ + TYPE_ULONGLONG, /* corrected_er */ + TYPE_ULONGLONG, /* last_physical */ + TYPE_ULONGLONG) /* unverified_errors */ + +STRUCT(btrfs_ioctl_scrub_args, + TYPE_ULONGLONG, /* devid */ + TYPE_ULONGLONG, /* start */ + TYPE_ULONGLONG, /* end */ + TYPE_ULONGLONG, /* flags */ + MK_STRUCT(STRUCT_btrfs_scrub_progress), /* progress */ + MK_ARRAY(TYPE_ULONGLONG, + (1024 - 32 - + sizeof(struct btrfs_scrub_progress)) / 8)) /* unused */ +#endif + #ifdef BTRFS_IOC_DEV_INFO STRUCT(btrfs_ioctl_dev_info_args, TYPE_ULONGLONG, /* devid */