From patchwork Tue Jul 12 18:06:10 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hanna Czenczek X-Patchwork-Id: 12915409 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 DFCE3C433EF for ; Tue, 12 Jul 2022 18:41:08 +0000 (UTC) Received: from localhost ([::1]:51076 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1oBKol-0008RF-Qm for qemu-devel@archiver.kernel.org; Tue, 12 Jul 2022 14:41:07 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:52022) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1oBKI3-0003nT-Cj for qemu-devel@nongnu.org; Tue, 12 Jul 2022 14:07:20 -0400 Received: from us-smtp-delivery-124.mimecast.com ([170.10.133.124]:39993) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1oBKHx-0006ir-RB for qemu-devel@nongnu.org; Tue, 12 Jul 2022 14:07:18 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1657649231; 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=367mNO307+X7rUiC8q7j642ZuikL/1grMF4XTjlh3Fg=; b=LTdFlDTkuaA03VR8Sj3rox25vnWX3dpXOBe3AmWSRgKh1kiU6J+YHhoD9gaf+XpsmZm2fe 0W6/mF3zDUa8fb41cwASJ/4JWjP9wr3QH9S8yYjJXy/FYGt42wg9KPHxcWqcdbcCGDOM9N 9Db/okveLw+j8ITpketLwNm4lyXNH1g= Received: from mimecast-mx02.redhat.com (mx3-rdu2.redhat.com [66.187.233.73]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-588-pj8T8GwjMgmWMpyIc60I4g-1; Tue, 12 Jul 2022 14:07:08 -0400 X-MC-Unique: pj8T8GwjMgmWMpyIc60I4g-1 Received: from smtp.corp.redhat.com (int-mx03.intmail.prod.int.rdu2.redhat.com [10.11.54.3]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id AB2803801156; Tue, 12 Jul 2022 18:07:07 +0000 (UTC) Received: from localhost (unknown [10.39.193.29]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 67D9A1121314; Tue, 12 Jul 2022 18:07:07 +0000 (UTC) From: Hanna Reitz To: qemu-block@nongnu.org Cc: qemu-devel@nongnu.org, Hanna Reitz Subject: [PULL 28/35] block: Add blk_co_truncate() Date: Tue, 12 Jul 2022 20:06:10 +0200 Message-Id: <20220712180617.1362407-29-hreitz@redhat.com> In-Reply-To: <20220712180617.1362407-1-hreitz@redhat.com> References: <20220712180617.1362407-1-hreitz@redhat.com> MIME-Version: 1.0 Content-type: text/plain X-Scanned-By: MIMEDefang 2.78 on 10.11.54.3 Received-SPF: pass client-ip=170.10.133.124; envelope-from=hreitz@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -21 X-Spam_score: -2.2 X-Spam_bar: -- X-Spam_report: (-2.2 / 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_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=unavailable 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: Alberto Faria Also convert blk_truncate() into a generated_co_wrapper. Signed-off-by: Alberto Faria Reviewed-by: Paolo Bonzini Reviewed-by: Hanna Reitz Message-Id: <20220705161527.1054072-17-afaria@redhat.com> Signed-off-by: Hanna Reitz --- include/sysemu/block-backend-io.h | 8 ++++++-- block/block-backend.c | 7 ++++--- tests/unit/test-block-iothread.c | 14 ++++++++++++++ 3 files changed, 24 insertions(+), 5 deletions(-) diff --git a/include/sysemu/block-backend-io.h b/include/sysemu/block-backend-io.h index 21f3a1b4f2..a79b7d9d9c 100644 --- a/include/sysemu/block-backend-io.h +++ b/include/sysemu/block-backend-io.h @@ -182,7 +182,11 @@ int generated_co_wrapper blk_pwrite_zeroes(BlockBackend *blk, int64_t offset, BdrvRequestFlags flags); int coroutine_fn blk_co_pwrite_zeroes(BlockBackend *blk, int64_t offset, int64_t bytes, BdrvRequestFlags flags); -int blk_truncate(BlockBackend *blk, int64_t offset, bool exact, - PreallocMode prealloc, BdrvRequestFlags flags, Error **errp); +int generated_co_wrapper blk_truncate(BlockBackend *blk, int64_t offset, + bool exact, PreallocMode prealloc, + BdrvRequestFlags flags, Error **errp); +int coroutine_fn blk_co_truncate(BlockBackend *blk, int64_t offset, bool exact, + PreallocMode prealloc, BdrvRequestFlags flags, + Error **errp); #endif /* BLOCK_BACKEND_IO_H */ diff --git a/block/block-backend.c b/block/block-backend.c index a31b9f1205..d0450ffd22 100644 --- a/block/block-backend.c +++ b/block/block-backend.c @@ -2293,8 +2293,9 @@ int coroutine_fn blk_co_pwrite_compressed(BlockBackend *blk, int64_t offset, BDRV_REQ_WRITE_COMPRESSED); } -int blk_truncate(BlockBackend *blk, int64_t offset, bool exact, - PreallocMode prealloc, BdrvRequestFlags flags, Error **errp) +int coroutine_fn blk_co_truncate(BlockBackend *blk, int64_t offset, bool exact, + PreallocMode prealloc, BdrvRequestFlags flags, + Error **errp) { IO_OR_GS_CODE(); if (!blk_is_available(blk)) { @@ -2302,7 +2303,7 @@ int blk_truncate(BlockBackend *blk, int64_t offset, bool exact, return -ENOMEDIUM; } - return bdrv_truncate(blk->root, offset, exact, prealloc, flags, errp); + return bdrv_co_truncate(blk->root, offset, exact, prealloc, flags, errp); } int blk_save_vmstate(BlockBackend *blk, const uint8_t *buf, diff --git a/tests/unit/test-block-iothread.c b/tests/unit/test-block-iothread.c index bb9230a4b4..8b55eccc89 100644 --- a/tests/unit/test-block-iothread.c +++ b/tests/unit/test-block-iothread.c @@ -298,6 +298,19 @@ static void test_sync_op_truncate(BdrvChild *c) c->bs->open_flags |= BDRV_O_RDWR; } +static void test_sync_op_blk_truncate(BlockBackend *blk) +{ + int ret; + + /* Normal success path */ + ret = blk_truncate(blk, 65536, false, PREALLOC_MODE_OFF, 0, NULL); + g_assert_cmpint(ret, ==, 0); + + /* Early error: Negative offset */ + ret = blk_truncate(blk, -2, false, PREALLOC_MODE_OFF, 0, NULL); + g_assert_cmpint(ret, ==, -EINVAL); +} + static void test_sync_op_block_status(BdrvChild *c) { int ret; @@ -425,6 +438,7 @@ const SyncOpTest sync_op_tests[] = { }, { .name = "/sync-op/truncate", .fn = test_sync_op_truncate, + .blkfn = test_sync_op_blk_truncate, }, { .name = "/sync-op/block_status", .fn = test_sync_op_block_status,