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[81.40.121.121]) by smtp.gmail.com with ESMTPSA id x133sm7604709wmg.39.2020.08.21.12.54.17 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 21 Aug 2020 12:54:17 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1598039661; 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=3lqHxzXh/lLTVxijpUS4Uwli7GjtQ2LdijRLIbNHx/E=; b=h6zVdcFhhblpK9sJ9AVbaQ6Ot2O6Gr00Kb8zw39flcLBAzKfoqSM4OQDOfWYc4AOKcSy/N QcOkpfOV5GH3YoaSoepXidCUh9Bbt9T5hPLQjQTNxfKoo3pMIwfrx1yiPfQorTEOzXyBlG cOxeh3yNVi+55OmhZm2R92IffKh+x1Q= X-MC-Unique: ew029iKJObeiDAEqWM-Xjw-1 X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=3lqHxzXh/lLTVxijpUS4Uwli7GjtQ2LdijRLIbNHx/E=; b=oYzBr7zfh/o0rNunrYfIkCH4p/mEEgjTfNYuCfIwJH+vUfL15JKrVNAKFob8gaH15E +mDTuy5v1inX0C3Sw+/ws2W1mzfHIt2jH9TGB1Kv6U7Xm/HJBU6G2Gwua2sY5n3X4V/w tks6NslmknswUHWlDCjBaKPlGi52jj/B7EL7PGTmEZzQeoX4dEqKAvYt8G067JLXGDqC CGrgvymbi/LTc2A0aQXi/X4hC8RsAzdKIdOdEHFOX+2075H4fqbivmiYbhyiV1+mvU6f CKt8yb0skI6ESTHYlxt5G+tKa5j4lcRWx1Pbc4Xix43zGbSv57dqRoiy2592XvxmKJ+g ZnoA== X-Gm-Message-State: AOAM5315XrEfFEn6HaP2kD+gqdQkHvehvA77LytDosY6b7lDEeu9bvp+ Nr4Xus5DvnWdxAfv6hx85LbKtiFMsNTiFrDJCxK6EqmStZOmfurrXVv3Uhd2oKMX7FgmDAkHyOa o6WAN4Fe3Dz3xVec= X-Received: by 2002:a5d:6348:: with SMTP id b8mr4014930wrw.362.1598039658339; Fri, 21 Aug 2020 12:54:18 -0700 (PDT) X-Google-Smtp-Source: ABdhPJxWiZLnWDYHHdpRqC3K0ok/pfI8IjezKPPXbRz6Kir7dS5BmYBBoS0KzcNcyp4AXd5qchq9CA== X-Received: by 2002:a5d:6348:: with SMTP id b8mr4014912wrw.362.1598039658133; Fri, 21 Aug 2020 12:54:18 -0700 (PDT) From: =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= To: qemu-devel@nongnu.org Subject: [PATCH v6 03/15] block/nvme: Let nvme_create_queue_pair() fail gracefully Date: Fri, 21 Aug 2020 21:53:47 +0200 Message-Id: <20200821195359.1285345-4-philmd@redhat.com> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20200821195359.1285345-1-philmd@redhat.com> References: <20200821195359.1285345-1-philmd@redhat.com> MIME-Version: 1.0 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=philmd@redhat.com X-Mimecast-Spam-Score: 0.002 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset="utf-8"; text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=205.139.110.61; envelope-from=philmd@redhat.com; helo=us-smtp-delivery-1.mimecast.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/08/21 01:00:15 X-ACL-Warn: Detected OS = Linux 2.2.x-3.x [generic] [fuzzy] X-Spam_score_int: -40 X-Spam_score: -4.1 X-Spam_bar: ---- X-Spam_report: (-4.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-1, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H2=-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: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Kevin Wolf , Fam Zheng , qemu-block@nongnu.org, Max Reitz , Stefan Hajnoczi , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , Stefano Garzarella Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) As nvme_create_queue_pair() is allowed to fail, replace the alloc() calls by try_alloc() to avoid aborting QEMU. Reviewed-by: Stefan Hajnoczi Reviewed-by: Stefano Garzarella Signed-off-by: Philippe Mathieu-Daud=C3=A9 --- block/nvme.c | 12 ++++++++++-- 1 file changed, 10 insertions(+), 2 deletions(-) diff --git a/block/nvme.c b/block/nvme.c index 8c30a5fee28..a6e5537aaaf 100644 --- a/block/nvme.c +++ b/block/nvme.c @@ -213,14 +213,22 @@ static NVMeQueuePair *nvme_create_queue_pair(BlockDri= verState *bs, int i, r; BDRVNVMeState *s =3D bs->opaque; Error *local_err =3D NULL; - NVMeQueuePair *q =3D g_new0(NVMeQueuePair, 1); + NVMeQueuePair *q; uint64_t prp_list_iova; =20 + q =3D g_try_new0(NVMeQueuePair, 1); + if (!q) { + return NULL; + } + q->prp_list_pages =3D qemu_try_blockalign0(bs, + s->page_size * NVME_NUM_REQS); + if (!q->prp_list_pages) { + goto fail; + } qemu_mutex_init(&q->lock); q->s =3D s; q->index =3D idx; qemu_co_queue_init(&q->free_req_queue); - q->prp_list_pages =3D qemu_blockalign0(bs, s->page_size * NVME_NUM_REQ= S); q->completion_bh =3D aio_bh_new(bdrv_get_aio_context(bs), nvme_process_completion_bh, q); r =3D qemu_vfio_dma_map(s->vfio, q->prp_list_pages, --=20 2.26.2