From patchwork Thu Jun 23 16:53:54 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: "Dr. David Alan Gilbert" X-Patchwork-Id: 12892993 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 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 smtp.lore.kernel.org (Postfix) with ESMTPS id 937D2C43334 for ; Thu, 23 Jun 2022 17:14:49 +0000 (UTC) Received: from localhost ([::1]:39684 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1o4QPo-0007Q8-2r for qemu-devel@archiver.kernel.org; Thu, 23 Jun 2022 13:14:48 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:60578) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1o4Q6E-0006P9-Tz for qemu-devel@nongnu.org; Thu, 23 Jun 2022 12:54:34 -0400 Received: from us-smtp-delivery-124.mimecast.com ([170.10.133.124]:37587) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1o4Q6C-00060n-IG for qemu-devel@nongnu.org; Thu, 23 Jun 2022 12:54:34 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1656003272; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=PY4fpvxGdjp1+fbi8zA9Qa+gNZHE10i6nQK1m8jqQU0=; b=PfrP+mW2RDX6g8PuXLKqY/57ICSIWT8IfgxZXSuxlR0N6VkN9wzg63ch7j5O/LYoNhMa4m 6XaS6WGo3dF2yztabPuVl6OI0sDnlUcnIgHIDUTC3gUioX3b+Js4ytri9K3jF5Q3LjoXu0 FzialRe3FMNqR71EIL3pwU2N0Sl9mKY= Received: from mimecast-mx02.redhat.com (mimecast-mx02.redhat.com [66.187.233.88]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-562-L2QBs5ZTMKKft7QsTffrSw-1; Thu, 23 Jun 2022 12:54:30 -0400 X-MC-Unique: L2QBs5ZTMKKft7QsTffrSw-1 Received: from smtp.corp.redhat.com (int-mx04.intmail.prod.int.rdu2.redhat.com [10.11.54.4]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 76CD9811E75; Thu, 23 Jun 2022 16:54:30 +0000 (UTC) Received: from dgilbert-t580.localhost (unknown [10.33.36.159]) by smtp.corp.redhat.com (Postfix) with ESMTP id 5CEF02026D64; Thu, 23 Jun 2022 16:54:29 +0000 (UTC) From: "Dr. David Alan Gilbert (git)" To: qemu-devel@nongnu.org, berrange@redhat.com, huangy81@chinatelecom.cn, quintela@redhat.com, leobras@redhat.com, peterx@redhat.com Cc: jdenemar@redhat.com Subject: [PULL 25/25] migration: remove the QEMUFileOps abstraction Date: Thu, 23 Jun 2022 17:53:54 +0100 Message-Id: <20220623165354.197792-26-dgilbert@redhat.com> In-Reply-To: <20220623165354.197792-1-dgilbert@redhat.com> References: <20220623165354.197792-1-dgilbert@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.78 on 10.11.54.4 Received-SPF: pass client-ip=170.10.133.124; envelope-from=dgilbert@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -28 X-Spam_score: -2.9 X-Spam_bar: -- X-Spam_report: (-2.9 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.082, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" From: Daniel P. Berrangé Now that all QEMUFile callbacks are removed, the entire concept can be deleted. Reviewed-by: Dr. David Alan Gilbert Signed-off-by: Daniel P. Berrangé Reviewed-by: Juan Quintela Signed-off-by: Juan Quintela Signed-off-by: Dr. David Alan Gilbert --- migration/channel.c | 4 +-- migration/colo.c | 5 ++-- migration/meson.build | 1 - migration/migration.c | 7 ++--- migration/qemu-file-channel.c | 53 ----------------------------------- migration/qemu-file-channel.h | 32 --------------------- migration/qemu-file.c | 20 ++++++------- migration/qemu-file.h | 7 ++--- migration/ram.c | 3 +- migration/rdma.c | 5 ++-- migration/savevm.c | 13 ++++----- tests/unit/test-vmstate.c | 5 ++-- 12 files changed, 27 insertions(+), 128 deletions(-) delete mode 100644 migration/qemu-file-channel.c delete mode 100644 migration/qemu-file-channel.h diff --git a/migration/channel.c b/migration/channel.c index a162d00fea..90087d8986 100644 --- a/migration/channel.c +++ b/migration/channel.c @@ -14,7 +14,7 @@ #include "channel.h" #include "tls.h" #include "migration.h" -#include "qemu-file-channel.h" +#include "qemu-file.h" #include "trace.h" #include "qapi/error.h" #include "io/channel-tls.h" @@ -85,7 +85,7 @@ void migration_channel_connect(MigrationState *s, return; } } else { - QEMUFile *f = qemu_fopen_channel_output(ioc); + QEMUFile *f = qemu_file_new_output(ioc); migration_ioc_register_yank(ioc); diff --git a/migration/colo.c b/migration/colo.c index 5f7071b3cd..2b71722fd6 100644 --- a/migration/colo.c +++ b/migration/colo.c @@ -14,7 +14,6 @@ #include "sysemu/sysemu.h" #include "qapi/error.h" #include "qapi/qapi-commands-migration.h" -#include "qemu-file-channel.h" #include "migration.h" #include "qemu-file.h" #include "savevm.h" @@ -559,7 +558,7 @@ static void colo_process_checkpoint(MigrationState *s) goto out; } bioc = qio_channel_buffer_new(COLO_BUFFER_BASE_SIZE); - fb = qemu_fopen_channel_output(QIO_CHANNEL(bioc)); + fb = qemu_file_new_output(QIO_CHANNEL(bioc)); object_unref(OBJECT(bioc)); qemu_mutex_lock_iothread(); @@ -873,7 +872,7 @@ void *colo_process_incoming_thread(void *opaque) colo_incoming_start_dirty_log(); bioc = qio_channel_buffer_new(COLO_BUFFER_BASE_SIZE); - fb = qemu_fopen_channel_input(QIO_CHANNEL(bioc)); + fb = qemu_file_new_input(QIO_CHANNEL(bioc)); object_unref(OBJECT(bioc)); qemu_mutex_lock_iothread(); diff --git a/migration/meson.build b/migration/meson.build index 8d309f5849..690487cf1a 100644 --- a/migration/meson.build +++ b/migration/meson.build @@ -4,7 +4,6 @@ migration_files = files( 'xbzrle.c', 'vmstate-types.c', 'vmstate.c', - 'qemu-file-channel.c', 'qemu-file.c', 'yank_functions.c', ) diff --git a/migration/migration.c b/migration/migration.c index 6d56eb1617..78f5057373 100644 --- a/migration/migration.c +++ b/migration/migration.c @@ -30,7 +30,6 @@ #include "migration/misc.h" #include "migration.h" #include "savevm.h" -#include "qemu-file-channel.h" #include "qemu-file.h" #include "migration/vmstate.h" #include "block/block.h" @@ -723,7 +722,7 @@ void migration_ioc_process_incoming(QIOChannel *ioc, Error **errp) if (!mis->from_src_file) { /* The first connection (multifd may have multiple) */ - QEMUFile *f = qemu_fopen_channel_input(ioc); + QEMUFile *f = qemu_file_new_input(ioc); if (!migration_incoming_setup(f, errp)) { return; @@ -3076,7 +3075,7 @@ static int postcopy_start(MigrationState *ms) */ bioc = qio_channel_buffer_new(4096); qio_channel_set_name(QIO_CHANNEL(bioc), "migration-postcopy-buffer"); - fb = qemu_fopen_channel_output(QIO_CHANNEL(bioc)); + fb = qemu_file_new_output(QIO_CHANNEL(bioc)); object_unref(OBJECT(bioc)); /* @@ -3966,7 +3965,7 @@ static void *bg_migration_thread(void *opaque) */ s->bioc = qio_channel_buffer_new(512 * 1024); qio_channel_set_name(QIO_CHANNEL(s->bioc), "vmstate-buffer"); - fb = qemu_fopen_channel_output(QIO_CHANNEL(s->bioc)); + fb = qemu_file_new_output(QIO_CHANNEL(s->bioc)); object_unref(OBJECT(s->bioc)); update_iteration_initial_status(s); diff --git a/migration/qemu-file-channel.c b/migration/qemu-file-channel.c deleted file mode 100644 index 51717c1137..0000000000 --- a/migration/qemu-file-channel.c +++ /dev/null @@ -1,53 +0,0 @@ -/* - * QEMUFile backend for QIOChannel objects - * - * Copyright (c) 2015-2016 Red Hat, Inc - * - * Permission is hereby granted, free of charge, to any person obtaining a copy - * of this software and associated documentation files (the "Software"), to deal - * in the Software without restriction, including without limitation the rights - * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell - * copies of the Software, and to permit persons to whom the Software is - * furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in - * all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, - * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN - * THE SOFTWARE. - */ - -#include "qemu/osdep.h" -#include "qemu-file-channel.h" -#include "qemu-file.h" -#include "io/channel-socket.h" -#include "io/channel-tls.h" -#include "qemu/iov.h" -#include "qemu/yank.h" -#include "yank_functions.h" - - -static const QEMUFileOps channel_input_ops = { -}; - - -static const QEMUFileOps channel_output_ops = { -}; - - -QEMUFile *qemu_fopen_channel_input(QIOChannel *ioc) -{ - object_ref(OBJECT(ioc)); - return qemu_file_new_input(ioc, &channel_input_ops); -} - -QEMUFile *qemu_fopen_channel_output(QIOChannel *ioc) -{ - object_ref(OBJECT(ioc)); - return qemu_file_new_output(ioc, &channel_output_ops); -} diff --git a/migration/qemu-file-channel.h b/migration/qemu-file-channel.h deleted file mode 100644 index 0028a09eb6..0000000000 --- a/migration/qemu-file-channel.h +++ /dev/null @@ -1,32 +0,0 @@ -/* - * QEMUFile backend for QIOChannel objects - * - * Copyright (c) 2015-2016 Red Hat, Inc - * - * Permission is hereby granted, free of charge, to any person obtaining a copy - * of this software and associated documentation files (the "Software"), to deal - * in the Software without restriction, including without limitation the rights - * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell - * copies of the Software, and to permit persons to whom the Software is - * furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in - * all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, - * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN - * THE SOFTWARE. - */ - -#ifndef QEMU_FILE_CHANNEL_H -#define QEMU_FILE_CHANNEL_H - -#include "io/channel.h" - -QEMUFile *qemu_fopen_channel_input(QIOChannel *ioc); -QEMUFile *qemu_fopen_channel_output(QIOChannel *ioc); -#endif diff --git a/migration/qemu-file.c b/migration/qemu-file.c index fad0e33164..1e80d496b7 100644 --- a/migration/qemu-file.c +++ b/migration/qemu-file.c @@ -35,7 +35,6 @@ #define MAX_IOV_SIZE MIN_CONST(IOV_MAX, 64) struct QEMUFile { - const QEMUFileOps *ops; const QEMUFileHooks *hooks; QIOChannel *ioc; bool is_writable; @@ -107,16 +106,14 @@ bool qemu_file_mode_is_not_valid(const char *mode) return false; } -static QEMUFile *qemu_file_new_impl(QIOChannel *ioc, - const QEMUFileOps *ops, - bool is_writable) +static QEMUFile *qemu_file_new_impl(QIOChannel *ioc, bool is_writable) { QEMUFile *f; f = g_new0(QEMUFile, 1); + object_ref(ioc); f->ioc = ioc; - f->ops = ops; f->is_writable = is_writable; return f; @@ -128,21 +125,19 @@ static QEMUFile *qemu_file_new_impl(QIOChannel *ioc, */ QEMUFile *qemu_file_get_return_path(QEMUFile *f) { - object_ref(f->ioc); - return qemu_file_new_impl(f->ioc, f->ops, !f->is_writable); + return qemu_file_new_impl(f->ioc, !f->is_writable); } -QEMUFile *qemu_file_new_output(QIOChannel *ioc, const QEMUFileOps *ops) +QEMUFile *qemu_file_new_output(QIOChannel *ioc) { - return qemu_file_new_impl(ioc, ops, true); + return qemu_file_new_impl(ioc, true); } -QEMUFile *qemu_file_new_input(QIOChannel *ioc, const QEMUFileOps *ops) +QEMUFile *qemu_file_new_input(QIOChannel *ioc) { - return qemu_file_new_impl(ioc, ops, false); + return qemu_file_new_impl(ioc, false); } - void qemu_file_set_hooks(QEMUFile *f, const QEMUFileHooks *hooks) { f->hooks = hooks; @@ -238,6 +233,7 @@ static void qemu_iovec_release_ram(QEMUFile *f) memset(f->may_free, 0, sizeof(f->may_free)); } + /** * Flushes QEMUFile buffer * diff --git a/migration/qemu-file.h b/migration/qemu-file.h index fe8f9766d1..96e72d8bd8 100644 --- a/migration/qemu-file.h +++ b/migration/qemu-file.h @@ -55,9 +55,6 @@ typedef size_t (QEMURamSaveFunc)(QEMUFile *f, size_t size, uint64_t *bytes_sent); -typedef struct QEMUFileOps { -} QEMUFileOps; - typedef struct QEMUFileHooks { QEMURamHookFunc *before_ram_iterate; QEMURamHookFunc *after_ram_iterate; @@ -65,8 +62,8 @@ typedef struct QEMUFileHooks { QEMURamSaveFunc *save_page; } QEMUFileHooks; -QEMUFile *qemu_file_new_input(QIOChannel *ioc, const QEMUFileOps *ops); -QEMUFile *qemu_file_new_output(QIOChannel *ioc, const QEMUFileOps *ops); +QEMUFile *qemu_file_new_input(QIOChannel *ioc); +QEMUFile *qemu_file_new_output(QIOChannel *ioc); void qemu_file_set_hooks(QEMUFile *f, const QEMUFileHooks *hooks); int qemu_fclose(QEMUFile *f); diff --git a/migration/ram.c b/migration/ram.c index bf321e1e72..01f9cc1d72 100644 --- a/migration/ram.c +++ b/migration/ram.c @@ -38,7 +38,6 @@ #include "migration.h" #include "migration/register.h" #include "migration/misc.h" -#include "migration/qemu-file-channel.h" #include "qemu-file.h" #include "postcopy-ram.h" #include "page_cache.h" @@ -569,7 +568,7 @@ static int compress_threads_save_setup(void) /* comp_param[i].file is just used as a dummy buffer to save data, * set its ops to empty. */ - comp_param[i].file = qemu_fopen_channel_output( + comp_param[i].file = qemu_file_new_output( QIO_CHANNEL(qio_channel_null_new())); comp_param[i].done = true; comp_param[i].quit = false; diff --git a/migration/rdma.c b/migration/rdma.c index 26a0cbbf40..94a55dd95b 100644 --- a/migration/rdma.c +++ b/migration/rdma.c @@ -21,7 +21,6 @@ #include "migration.h" #include "qemu-file.h" #include "ram.h" -#include "qemu-file-channel.h" #include "qemu/error-report.h" #include "qemu/main-loop.h" #include "qemu/module.h" @@ -4052,12 +4051,12 @@ static QEMUFile *qemu_fopen_rdma(RDMAContext *rdma, const char *mode) rioc = QIO_CHANNEL_RDMA(object_new(TYPE_QIO_CHANNEL_RDMA)); if (mode[0] == 'w') { - rioc->file = qemu_fopen_channel_output(QIO_CHANNEL(rioc)); + rioc->file = qemu_file_new_output(QIO_CHANNEL(rioc)); rioc->rdmaout = rdma; rioc->rdmain = rdma->return_path; qemu_file_set_hooks(rioc->file, &rdma_write_hooks); } else { - rioc->file = qemu_fopen_channel_input(QIO_CHANNEL(rioc)); + rioc->file = qemu_file_new_input(QIO_CHANNEL(rioc)); rioc->rdmain = rdma; rioc->rdmaout = rdma->return_path; qemu_file_set_hooks(rioc->file, &rdma_read_hooks); diff --git a/migration/savevm.c b/migration/savevm.c index 3e9612121a..e8a1b96fcd 100644 --- a/migration/savevm.c +++ b/migration/savevm.c @@ -37,7 +37,6 @@ #include "migration/global_state.h" #include "migration/channel-block.h" #include "ram.h" -#include "qemu-file-channel.h" #include "qemu-file.h" #include "savevm.h" #include "postcopy-ram.h" @@ -134,11 +133,9 @@ static struct mig_cmd_args { static QEMUFile *qemu_fopen_bdrv(BlockDriverState *bs, int is_writable) { if (is_writable) { - return qemu_fopen_channel_output( - QIO_CHANNEL(qio_channel_block_new(bs))); + return qemu_file_new_output(QIO_CHANNEL(qio_channel_block_new(bs))); } else { - return qemu_fopen_channel_input( - QIO_CHANNEL(qio_channel_block_new(bs))); + return qemu_file_new_input(QIO_CHANNEL(qio_channel_block_new(bs))); } } @@ -2161,7 +2158,7 @@ static int loadvm_handle_cmd_packaged(MigrationIncomingState *mis) bioc->usage += length; trace_loadvm_handle_cmd_packaged_received(ret); - QEMUFile *packf = qemu_fopen_channel_input(QIO_CHANNEL(bioc)); + QEMUFile *packf = qemu_file_new_input(QIO_CHANNEL(bioc)); ret = qemu_loadvm_state_main(packf, mis); trace_loadvm_handle_cmd_packaged_main(ret); @@ -2919,7 +2916,7 @@ void qmp_xen_save_devices_state(const char *filename, bool has_live, bool live, goto the_end; } qio_channel_set_name(QIO_CHANNEL(ioc), "migration-xen-save-state"); - f = qemu_fopen_channel_output(QIO_CHANNEL(ioc)); + f = qemu_file_new_output(QIO_CHANNEL(ioc)); object_unref(OBJECT(ioc)); ret = qemu_save_device_state(f); if (ret < 0 || qemu_fclose(f) < 0) { @@ -2966,7 +2963,7 @@ void qmp_xen_load_devices_state(const char *filename, Error **errp) return; } qio_channel_set_name(QIO_CHANNEL(ioc), "migration-xen-load-state"); - f = qemu_fopen_channel_input(QIO_CHANNEL(ioc)); + f = qemu_file_new_input(QIO_CHANNEL(ioc)); object_unref(OBJECT(ioc)); ret = qemu_loadvm_state(f); diff --git a/tests/unit/test-vmstate.c b/tests/unit/test-vmstate.c index 6a417bb102..72077b5780 100644 --- a/tests/unit/test-vmstate.c +++ b/tests/unit/test-vmstate.c @@ -28,7 +28,6 @@ #include "migration/vmstate.h" #include "migration/qemu-file-types.h" #include "../migration/qemu-file.h" -#include "../migration/qemu-file-channel.h" #include "../migration/savevm.h" #include "qemu/coroutine.h" #include "qemu/module.h" @@ -52,9 +51,9 @@ static QEMUFile *open_test_file(bool write) } ioc = QIO_CHANNEL(qio_channel_file_new_fd(fd)); if (write) { - f = qemu_fopen_channel_output(ioc); + f = qemu_file_new_output(ioc); } else { - f = qemu_fopen_channel_input(ioc); + f = qemu_file_new_input(ioc); } object_unref(OBJECT(ioc)); return f;