From patchwork Thu Sep 19 13:46:19 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Dr. David Alan Gilbert" X-Patchwork-Id: 13807771 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 10FA6CF3942 for ; Thu, 19 Sep 2024 13:48:30 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1srHUj-00083d-Kf; Thu, 19 Sep 2024 09:46:53 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1srHUg-0007qE-KW for qemu-devel@nongnu.org; Thu, 19 Sep 2024 09:46:50 -0400 Received: from mx.treblig.org ([2a00:1098:5b::1]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1srHUQ-0005zl-UM for qemu-devel@nongnu.org; Thu, 19 Sep 2024 09:46:40 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=treblig.org ; s=bytemarkmx; h=MIME-Version:Message-ID:Date:Subject:From:Content-Type:From :Subject; bh=KrajGmYAtlRM8qcr9rCRYTxgOyGTlHDlDTPA25yNl6M=; b=DyyNixIh7Mwcpt9I exQIvCDteWktIf5tSe8suM5xApvyfo3h7WXidD4FokOUzOIMLX3fDhOT4662exP+QUMgqsLYxJXVK ugoGwprSI3Mp5IqkSkuOg/wibPK1CHN9mGzG7RBz0ybFTXFZ99nEWj1/2iTrHxf24ynlyZF7sAarq /dW3j1xbl1NLFHluMhuykV/KDGXgHrcXbFP8ubQCDiXteqZX9jiEEx/Xjw6quuPtOFBkQxIfTpf0i QO/mlOm6xPkrvmQvbLEysomQmtyqGNl5j15eYhtL09BQFsYhLVprdocSTzm6rAAJ+3K+lmagoOOqS sDB222UoXxZubOupZg==; Received: from localhost ([127.0.0.1] helo=dalek.home.treblig.org) by mx.treblig.org with esmtp (Exim 4.96) (envelope-from ) id 1srHUJ-006QOJ-2y; Thu, 19 Sep 2024 13:46:27 +0000 From: dave@treblig.org To: peterx@redhat.com, farosas@suse.de, eblake@redhat.com, armbru@redhat.com Cc: qemu-devel@nongnu.org, "Dr. David Alan Gilbert" Subject: [PATCH v2 0/7] Migration deadcode removal Date: Thu, 19 Sep 2024 14:46:19 +0100 Message-ID: <20240919134626.166183-1-dave@treblig.org> X-Mailer: git-send-email 2.46.1 MIME-Version: 1.0 Received-SPF: pass client-ip=2a00:1098:5b::1; envelope-from=dave@treblig.org; helo=mx.treblig.org X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 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-bounces+qemu-devel=archiver.kernel.org@nongnu.org From: "Dr. David Alan Gilbert" This is a set of deadcode removal around migration found by looking for unused symbols. v2 Don't remove the zero-blocks capability yet add Fabiano's deprecation text patch. Use the uffd helpers in postcopy rather than removing most of them. Remove one. Dave Dr. David Alan Gilbert (6): migration: Remove migrate_cap_set migration: Remove unused migrate_zero_blocks migration: Remove unused socket_send_channel_create_sync util/userfaultfd: Return -errno on error migration/postcopy: Use uffd helpers util/userfaultfd: Remove unused uffd_poll_events Fabiano Rosas (1): migration: Deprecate zero-blocks capability docs/about/deprecated.rst | 6 +++++ include/qemu/userfaultfd.h | 1 - migration/options.c | 31 ++++-------------------- migration/options.h | 2 -- migration/postcopy-ram.c | 47 ++++++++++-------------------------- migration/socket.c | 18 -------------- migration/socket.h | 1 - qapi/migration.json | 5 +++- util/userfaultfd.c | 49 ++++++++++---------------------------- 9 files changed, 39 insertions(+), 121 deletions(-)