From patchwork Wed Apr 27 11:40:54 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hanna Czenczek X-Patchwork-Id: 1622990 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: bilbo.ozlabs.org; dkim=fail reason="signature verification failed" (1024-bit key; unprotected) header.d=redhat.com header.i=@redhat.com header.a=rsa-sha256 header.s=mimecast20190719 header.b=cvt+IjHM; dkim-atps=neutral Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org (client-ip=209.51.188.17; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=) 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 bilbo.ozlabs.org (Postfix) with ESMTPS id 4KpHG54lXQz9s3q for ; Wed, 27 Apr 2022 21:53:49 +1000 (AEST) Received: from localhost ([::1]:43990 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1njgEt-0006cN-8Z for incoming@patchwork.ozlabs.org; Wed, 27 Apr 2022 07:53:47 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:45758) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1njg2h-0005Ep-A5 for qemu-devel@nongnu.org; Wed, 27 Apr 2022 07:41:11 -0400 Received: from us-smtp-delivery-124.mimecast.com ([170.10.133.124]:52344) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1njg2a-00033S-Cl for qemu-devel@nongnu.org; Wed, 27 Apr 2022 07:41:10 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1651059663; 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=WDQbciLiSrBnSqJXLCbr8UiR8jR6OaXTZjujO5M5L+U=; b=cvt+IjHM2cSh5aTfW2sgqkX8t7gbY7Q945UxT4yaL8NIjMkhWDZOPssKvbBEuG3e34oLW4 ExoFR+OCE9CrWa0wem9HZxZi7vS8g9d+2WZV93NmLAaQw2NrOKK3KB/+HTUTdPhjgtkiNY dwtohuYnsq1rWnTFKJcyG6sapwkQOsE= 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-662-9Q16OL0GNjSV8399ERgXgQ-1; Wed, 27 Apr 2022 07:41:01 -0400 X-MC-Unique: 9Q16OL0GNjSV8399ERgXgQ-1 Received: from smtp.corp.redhat.com (int-mx06.intmail.prod.int.rdu2.redhat.com [10.11.54.6]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 6C34A29DD993; Wed, 27 Apr 2022 11:41:01 +0000 (UTC) Received: from localhost (unknown [10.39.193.160]) by smtp.corp.redhat.com (Postfix) with ESMTPS id B38582166B4D; Wed, 27 Apr 2022 11:41:00 +0000 (UTC) From: Hanna Reitz To: qemu-block@nongnu.org Subject: [PATCH 1/4] block: Classify bdrv_get_flags() as I/O function Date: Wed, 27 Apr 2022 13:40:54 +0200 Message-Id: <20220427114057.36651-2-hreitz@redhat.com> In-Reply-To: <20220427114057.36651-1-hreitz@redhat.com> References: <20220427114057.36651-1-hreitz@redhat.com> MIME-Version: 1.0 Content-type: text/plain X-Scanned-By: MIMEDefang 2.78 on 10.11.54.6 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: -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: , Cc: Kevin Wolf , Emanuele Giuseppe Esposito , Hanna Reitz , qemu-devel@nongnu.org, Paolo Bonzini Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" This function is safe to call in an I/O context, and qcow2_do_open() does so (invoked in an I/O context by qcow2_co_invalidate_cache()). Signed-off-by: Hanna Reitz Reviewed-by: Eric Blake --- include/block/block-global-state.h | 1 - include/block/block-io.h | 1 + block.c | 2 +- 3 files changed, 2 insertions(+), 2 deletions(-) diff --git a/include/block/block-global-state.h b/include/block/block-global-state.h index 25bb69bbef..21265e3966 100644 --- a/include/block/block-global-state.h +++ b/include/block/block-global-state.h @@ -172,7 +172,6 @@ void bdrv_next_cleanup(BdrvNextIterator *it); BlockDriverState *bdrv_next_monitor_owned(BlockDriverState *bs); void bdrv_iterate_format(void (*it)(void *opaque, const char *name), void *opaque, bool read_only); -int bdrv_get_flags(BlockDriverState *bs); char *bdrv_get_full_backing_filename(BlockDriverState *bs, Error **errp); char *bdrv_dirname(BlockDriverState *bs, Error **errp); diff --git a/include/block/block-io.h b/include/block/block-io.h index 5e3f346806..62c84f0519 100644 --- a/include/block/block-io.h +++ b/include/block/block-io.h @@ -103,6 +103,7 @@ int bdrv_apply_auto_read_only(BlockDriverState *bs, const char *errmsg, bool bdrv_is_read_only(BlockDriverState *bs); bool bdrv_is_writable(BlockDriverState *bs); bool bdrv_is_sg(BlockDriverState *bs); +int bdrv_get_flags(BlockDriverState *bs); bool bdrv_is_inserted(BlockDriverState *bs); void bdrv_lock_medium(BlockDriverState *bs, bool locked); void bdrv_eject(BlockDriverState *bs, bool eject_flag); diff --git a/block.c b/block.c index 8cd16e757e..2c00dddd80 100644 --- a/block.c +++ b/block.c @@ -6298,7 +6298,7 @@ const char *bdrv_get_device_or_node_name(const BlockDriverState *bs) int bdrv_get_flags(BlockDriverState *bs) { - GLOBAL_STATE_CODE(); + IO_CODE(); return bs->open_flags; } From patchwork Wed Apr 27 11:40:55 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hanna Czenczek X-Patchwork-Id: 1622989 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: bilbo.ozlabs.org; dkim=fail reason="signature verification failed" (1024-bit key; unprotected) header.d=redhat.com header.i=@redhat.com header.a=rsa-sha256 header.s=mimecast20190719 header.b=G0NG8jL7; 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Wed, 27 Apr 2022 11:41:06 +0000 (UTC) Received: from localhost (unknown [10.39.193.160]) by smtp.corp.redhat.com (Postfix) with ESMTPS id C08EC9E74; Wed, 27 Apr 2022 11:41:02 +0000 (UTC) From: Hanna Reitz To: qemu-block@nongnu.org Subject: [PATCH 2/4] qcow2: Do not reopen data_file in invalidate_cache Date: Wed, 27 Apr 2022 13:40:55 +0200 Message-Id: <20220427114057.36651-3-hreitz@redhat.com> In-Reply-To: <20220427114057.36651-1-hreitz@redhat.com> References: <20220427114057.36651-1-hreitz@redhat.com> MIME-Version: 1.0 Content-type: text/plain X-Scanned-By: MIMEDefang 2.79 on 10.11.54.5 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: -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: , Cc: Kevin Wolf , Emanuele Giuseppe Esposito , Hanna Reitz , qemu-devel@nongnu.org, Paolo Bonzini Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" qcow2_co_invalidate_cache() closes and opens the qcow2 file, by calling qcow2_close() and qcow2_do_open(). These two functions must thus be usable from both a global-state and an I/O context. As they are, they are not safe to call in an I/O context, because they use bdrv_unref_child() and bdrv_open_child() to close/open the data_file child, respectively, both of which are global-state functions. When used from qcow2_co_invalidate_cache(), we do not need to close/open the data_file child, though (we do not do this for bs->file or bs->backing either), and so we should skip it in the qcow2_co_invalidate_cache() path. To do so, add a parameter to qcow2_do_open() and qcow2_close() to make them skip handling s->data_file, and have qcow2_co_invalidate_cache() exempt it from the memset() on the BDRVQcow2State. (Note that the QED driver similarly closes/opens the QED image by invoking bdrv_qed_close()+bdrv_qed_do_open(), but both functions seem safe to use in an I/O context.) Fixes: https://gitlab.com/qemu-project/qemu/-/issues/945 Signed-off-by: Hanna Reitz Reviewed-by: Eric Blake --- block/qcow2.c | 104 ++++++++++++++++++++++++++++++-------------------- 1 file changed, 62 insertions(+), 42 deletions(-) diff --git a/block/qcow2.c b/block/qcow2.c index b5c47931ef..4f5e6440fb 100644 --- a/block/qcow2.c +++ b/block/qcow2.c @@ -1296,7 +1296,8 @@ static int validate_compression_type(BDRVQcow2State *s, Error **errp) /* Called with s->lock held. */ static int coroutine_fn qcow2_do_open(BlockDriverState *bs, QDict *options, - int flags, Error **errp) + int flags, bool open_data_file, + Error **errp) { ERRP_GUARD(); BDRVQcow2State *s = bs->opaque; @@ -1614,50 +1615,52 @@ static int coroutine_fn qcow2_do_open(BlockDriverState *bs, QDict *options, goto fail; } - /* Open external data file */ - s->data_file = bdrv_open_child(NULL, options, "data-file", bs, - &child_of_bds, BDRV_CHILD_DATA, - true, errp); - if (*errp) { - ret = -EINVAL; - goto fail; - } + if (open_data_file) { + /* Open external data file */ + s->data_file = bdrv_open_child(NULL, options, "data-file", bs, + &child_of_bds, BDRV_CHILD_DATA, + true, errp); + if (*errp) { + ret = -EINVAL; + goto fail; + } - if (s->incompatible_features & QCOW2_INCOMPAT_DATA_FILE) { - if (!s->data_file && s->image_data_file) { - s->data_file = bdrv_open_child(s->image_data_file, options, - "data-file", bs, &child_of_bds, - BDRV_CHILD_DATA, false, errp); + if (s->incompatible_features & QCOW2_INCOMPAT_DATA_FILE) { + if (!s->data_file && s->image_data_file) { + s->data_file = bdrv_open_child(s->image_data_file, options, + "data-file", bs, &child_of_bds, + BDRV_CHILD_DATA, false, errp); + if (!s->data_file) { + ret = -EINVAL; + goto fail; + } + } if (!s->data_file) { + error_setg(errp, "'data-file' is required for this image"); ret = -EINVAL; goto fail; } - } - if (!s->data_file) { - error_setg(errp, "'data-file' is required for this image"); - ret = -EINVAL; - goto fail; - } - /* No data here */ - bs->file->role &= ~BDRV_CHILD_DATA; + /* No data here */ + bs->file->role &= ~BDRV_CHILD_DATA; - /* Must succeed because we have given up permissions if anything */ - bdrv_child_refresh_perms(bs, bs->file, &error_abort); - } else { - if (s->data_file) { - error_setg(errp, "'data-file' can only be set for images with an " - "external data file"); - ret = -EINVAL; - goto fail; - } + /* Must succeed because we have given up permissions if anything */ + bdrv_child_refresh_perms(bs, bs->file, &error_abort); + } else { + if (s->data_file) { + error_setg(errp, "'data-file' can only be set for images with " + "an external data file"); + ret = -EINVAL; + goto fail; + } - s->data_file = bs->file; + s->data_file = bs->file; - if (data_file_is_raw(bs)) { - error_setg(errp, "data-file-raw requires a data file"); - ret = -EINVAL; - goto fail; + if (data_file_is_raw(bs)) { + error_setg(errp, "data-file-raw requires a data file"); + ret = -EINVAL; + goto fail; + } } } @@ -1839,7 +1842,7 @@ static int coroutine_fn qcow2_do_open(BlockDriverState *bs, QDict *options, fail: g_free(s->image_data_file); - if (has_data_file(bs)) { + if (open_data_file && has_data_file(bs)) { bdrv_unref_child(bs, s->data_file); s->data_file = NULL; } @@ -1876,7 +1879,8 @@ static void coroutine_fn qcow2_open_entry(void *opaque) BDRVQcow2State *s = qoc->bs->opaque; qemu_co_mutex_lock(&s->lock); - qoc->ret = qcow2_do_open(qoc->bs, qoc->options, qoc->flags, qoc->errp); + qoc->ret = qcow2_do_open(qoc->bs, qoc->options, qoc->flags, true, + qoc->errp); qemu_co_mutex_unlock(&s->lock); } @@ -2714,7 +2718,7 @@ static int qcow2_inactivate(BlockDriverState *bs) return result; } -static void qcow2_close(BlockDriverState *bs) +static void qcow2_do_close(BlockDriverState *bs, bool close_data_file) { BDRVQcow2State *s = bs->opaque; qemu_vfree(s->l1_table); @@ -2740,7 +2744,7 @@ static void qcow2_close(BlockDriverState *bs) g_free(s->image_backing_file); g_free(s->image_backing_format); - if (has_data_file(bs)) { + if (close_data_file && has_data_file(bs)) { bdrv_unref_child(bs, s->data_file); s->data_file = NULL; } @@ -2749,11 +2753,17 @@ static void qcow2_close(BlockDriverState *bs) qcow2_free_snapshots(bs); } +static void qcow2_close(BlockDriverState *bs) +{ + qcow2_do_close(bs, true); +} + static void coroutine_fn qcow2_co_invalidate_cache(BlockDriverState *bs, Error **errp) { ERRP_GUARD(); BDRVQcow2State *s = bs->opaque; + BdrvChild *data_file; int flags = s->flags; QCryptoBlock *crypto = NULL; QDict *options; @@ -2767,14 +2777,24 @@ static void coroutine_fn qcow2_co_invalidate_cache(BlockDriverState *bs, crypto = s->crypto; s->crypto = NULL; - qcow2_close(bs); + /* + * Do not reopen s->data_file (i.e., have qcow2_do_close() not close it, + * and then prevent qcow2_do_open() from opening it), because this function + * runs in the I/O path and as such we must not invoke global-state + * functions like bdrv_unref_child() and bdrv_open_child(). + */ + qcow2_do_close(bs, false); + + data_file = s->data_file; memset(s, 0, sizeof(BDRVQcow2State)); + s->data_file = data_file; + options = qdict_clone_shallow(bs->options); flags &= ~BDRV_O_INACTIVE; qemu_co_mutex_lock(&s->lock); - ret = qcow2_do_open(bs, options, flags, errp); + ret = qcow2_do_open(bs, options, flags, false, errp); qemu_co_mutex_unlock(&s->lock); qobject_unref(options); if (ret < 0) { From patchwork Wed Apr 27 11:40:56 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hanna Czenczek X-Patchwork-Id: 1622985 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: bilbo.ozlabs.org; dkim=fail reason="signature verification failed" (1024-bit key; unprotected) header.d=redhat.com header.i=@redhat.com header.a=rsa-sha256 header.s=mimecast20190719 header.b=Wxju4sAZ; dkim-atps=neutral Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org (client-ip=209.51.188.17; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=) 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 bilbo.ozlabs.org (Postfix) with ESMTPS id 4KpH4W3TWjz9s3q for ; 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bh=QUajXLIz1w0mEkoz0EDPtlK93pHKpbHvMptJ5r4Aryo=; b=Wxju4sAZqtDVAEFPXd6Tv51AIsi1Xta5cE5qhTKOTBzMV6UVCYeu2TFHjOdxHzlSg0JChl Q5mqq4NfPWxPwih5nMWm65Ak2G2Ruivrl1XgmyAUFUZAQ+XEKhNSDbVP8OLNddUeUZBAR1 7GXCjlJEgN4WWsCkyylLgty4KPRV+F8= 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-375-u9TBWR8zMy6t5S-ZYgzXjg-1; Wed, 27 Apr 2022 07:41:19 -0400 X-MC-Unique: u9TBWR8zMy6t5S-ZYgzXjg-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 5A50C801E67; Wed, 27 Apr 2022 11:41:19 +0000 (UTC) Received: from localhost (unknown [10.39.193.160]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 66853111D3C7; Wed, 27 Apr 2022 11:41:08 +0000 (UTC) From: Hanna Reitz To: qemu-block@nongnu.org Subject: [PATCH 3/4] Revert "main-loop: Disable GLOBAL_STATE_CODE() assertions" Date: Wed, 27 Apr 2022 13:40:56 +0200 Message-Id: <20220427114057.36651-4-hreitz@redhat.com> In-Reply-To: <20220427114057.36651-1-hreitz@redhat.com> References: <20220427114057.36651-1-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=170.10.129.124; envelope-from=hreitz@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: , Cc: Kevin Wolf , Emanuele Giuseppe Esposito , Hanna Reitz , qemu-devel@nongnu.org, Paolo Bonzini Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" This reverts commit b1c073490553f80594b903ceedfc7c1aef6b1b19. (We wanted to do so once the 7.1 tree opens, which has happened. The issue reported in https://gitlab.com/qemu-project/qemu/-/issues/945 should be fixed by the preceding patches.) Signed-off-by: Hanna Reitz Reviewed-by: Eric Blake --- include/qemu/main-loop.h | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/include/qemu/main-loop.h b/include/qemu/main-loop.h index d3750c8e76..89bd9edefb 100644 --- a/include/qemu/main-loop.h +++ b/include/qemu/main-loop.h @@ -284,8 +284,7 @@ bool qemu_in_main_thread(void); #else #define GLOBAL_STATE_CODE() \ do { \ - /* FIXME: Re-enable after 7.0 release */ \ - /* assert(qemu_in_main_thread()); */ \ + assert(qemu_in_main_thread()); \ } while (0) #endif /* CONFIG_COCOA */ From patchwork Wed Apr 27 11:40:57 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hanna Czenczek X-Patchwork-Id: 1623004 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: bilbo.ozlabs.org; dkim=fail reason="signature verification failed" (1024-bit key; unprotected) header.d=redhat.com header.i=@redhat.com header.a=rsa-sha256 header.s=mimecast20190719 header.b=QCr3pRv2; dkim-atps=neutral Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org (client-ip=209.51.188.17; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=) 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 bilbo.ozlabs.org (Postfix) with ESMTPS id 4KpHMC59Y1z9s3q for ; Wed, 27 Apr 2022 21:58:14 +1000 (AEST) Received: from localhost ([::1]:54090 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1njgJ8-0005Jh-W5 for incoming@patchwork.ozlabs.org; Wed, 27 Apr 2022 07:58:11 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:45900) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1njg2y-0005UU-Nk for qemu-devel@nongnu.org; Wed, 27 Apr 2022 07:41:28 -0400 Received: from us-smtp-delivery-124.mimecast.com ([170.10.129.124]:25693) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1njg2w-00036W-TZ for qemu-devel@nongnu.org; Wed, 27 Apr 2022 07:41:28 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1651059684; 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=KqnC/kFWBk9HMXAqhrc0Zsmjken4glYncZVOIILbbbo=; b=QCr3pRv2WpY7BRI7i2EFw/aes+iv+IBiNwFHNp1fKjsZTnsy3vXvufjAIucGKuHLE2Rzxs fudehxI7z8T6A1c3mVDwoQLG8AxNi+rgGZklaD2gMOkI2zTl6R55KLLHbOZIuuyb2ASaDT ArGnVRLjPdZl4USl2u5GqyYLDhxiitE= 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-441-mmu3c5TWNXiYihSjaPjufg-1; Wed, 27 Apr 2022 07:41:21 -0400 X-MC-Unique: mmu3c5TWNXiYihSjaPjufg-1 Received: from smtp.corp.redhat.com (int-mx01.intmail.prod.int.rdu2.redhat.com [10.11.54.1]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 2752B8001EA; Wed, 27 Apr 2022 11:41:21 +0000 (UTC) Received: from localhost (unknown [10.39.193.160]) by smtp.corp.redhat.com (Postfix) with ESMTPS id D6AE840CFD05; Wed, 27 Apr 2022 11:41:20 +0000 (UTC) From: Hanna Reitz To: qemu-block@nongnu.org Subject: [PATCH 4/4] iotests: Add regression test for issue 945 Date: Wed, 27 Apr 2022 13:40:57 +0200 Message-Id: <20220427114057.36651-5-hreitz@redhat.com> In-Reply-To: <20220427114057.36651-1-hreitz@redhat.com> References: <20220427114057.36651-1-hreitz@redhat.com> MIME-Version: 1.0 Content-type: text/plain X-Scanned-By: MIMEDefang 2.84 on 10.11.54.1 Received-SPF: pass client-ip=170.10.129.124; envelope-from=hreitz@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=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: , Cc: Kevin Wolf , Emanuele Giuseppe Esposito , Hanna Reitz , qemu-devel@nongnu.org, Paolo Bonzini Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" Create a VM with a BDS in an iothread, add -incoming defer to the command line, and then export this BDS via NBD. Doing so should not fail an assertion. Signed-off-by: Hanna Reitz Reviewed-by: Eric Blake Tested-by: Eric Blake --- .../tests/export-incoming-iothread | 81 +++++++++++++++++++ .../tests/export-incoming-iothread.out | 5 ++ 2 files changed, 86 insertions(+) create mode 100755 tests/qemu-iotests/tests/export-incoming-iothread create mode 100644 tests/qemu-iotests/tests/export-incoming-iothread.out diff --git a/tests/qemu-iotests/tests/export-incoming-iothread b/tests/qemu-iotests/tests/export-incoming-iothread new file mode 100755 index 0000000000..7679e49103 --- /dev/null +++ b/tests/qemu-iotests/tests/export-incoming-iothread @@ -0,0 +1,81 @@ +#!/usr/bin/env python3 +# group: rw quick migration +# +# Regression test for issue 945: +# https://gitlab.com/qemu-project/qemu/-/issues/945 +# Test adding an export on top of an iothread-ed block device while in +# -incoming defer. +# +# Copyright (C) 2022 Red Hat, Inc. +# +# This program is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 2 of the License, or +# (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program. If not, see . +# + +import os +import iotests +from iotests import qemu_img_create + + +image_size = 1 * 1024 * 1024 +test_img = os.path.join(iotests.test_dir, 'test.img') +node_name = 'node0' +iothread_id = 'iothr0' + +nbd_sock = os.path.join(iotests.sock_dir, 'nbd.sock') + + +class TestExportIncomingIothread(iotests.QMPTestCase): + def setUp(self) -> None: + qemu_img_create('-f', iotests.imgfmt, test_img, str(image_size)) + + self.vm = iotests.VM() + self.vm.add_object(f'iothread,id={iothread_id}') + self.vm.add_blockdev(( + f'driver={iotests.imgfmt}', + f'node-name={node_name}', + 'file.driver=file', + f'file.filename={test_img}' + )) + self.vm.add_incoming('defer') + self.vm.launch() + + def tearDown(self): + self.vm.shutdown() + os.remove(test_img) + + def test_export_add(self): + result = self.vm.qmp('nbd-server-start', { + 'addr': { + 'type': 'unix', + 'data': { + 'path': nbd_sock + } + } + }) + self.assert_qmp(result, 'return', {}) + + # Regression test for issue 945: This should not fail an assertion + result = self.vm.qmp('block-export-add', { + 'type': 'nbd', + 'id': 'exp0', + 'node-name': node_name, + 'iothread': iothread_id + }) + self.assert_qmp(result, 'return', {}) + + +if __name__ == '__main__': + iotests.main(supported_fmts=['generic'], + unsupported_fmts=['luks'], # Would need a secret + supported_protocols=['file']) diff --git a/tests/qemu-iotests/tests/export-incoming-iothread.out b/tests/qemu-iotests/tests/export-incoming-iothread.out new file mode 100644 index 0000000000..ae1213e6f8 --- /dev/null +++ b/tests/qemu-iotests/tests/export-incoming-iothread.out @@ -0,0 +1,5 @@ +. +---------------------------------------------------------------------- +Ran 1 tests + +OK