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[2003:cb:c70b:1600:c48b:1fab:a330:5182]) by smtp.gmail.com with ESMTPSA id o4-20020a05600c510400b003a5dde32e4bsm21918622wms.37.2022.08.23.02.39.30 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 23 Aug 2022 02:39:30 -0700 (PDT) Message-ID: <031e2b78-7356-013c-9375-5fa0c7deba9e@redhat.com> Date: Tue, 23 Aug 2022 11:39:30 +0200 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.11.0 Subject: Re: [PATCH v2 4/8] memblock tests: add additional tests for basic api and memblock_alloc To: Rebecca Mckeever , Mike Rapoport , linux-mm@kvack.org, linux-kernel@vger.kernel.org References: From: David Hildenbrand Organization: Red Hat In-Reply-To: X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Language: en-US Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit ARC-Authentication-Results: i=1; imf06.hostedemail.com; dkim=pass header.d=redhat.com header.s=mimecast20190719 header.b=ilAGyRzm; spf=pass (imf06.hostedemail.com: domain of david@redhat.com designates 170.10.133.124 as permitted sender) smtp.mailfrom=david@redhat.com; dmarc=pass (policy=none) header.from=redhat.com ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1661247574; a=rsa-sha256; cv=none; b=SkpkHk75MQPgBTSyvU6XjRbHMWNyxUY9uDsscsieBMfIH5q5k/Qi6DfAVxkDJB+0LBBPAA wz9f7D8Fm/Dt+MwdvjJ81KAMNn65Yp6lJy8RG5NjogOr/HDAIcJlfWeUwQwjQ2uic9f8+l Jea9aCBzrSlgu3bw5wC1531GTAD6YcM= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1661247574; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:mime-version:mime-version: content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references:dkim-signature; bh=tdpZcpZ9CAoMWvOU4u52qpOeJcc0NvknOBwRKuLXRGY=; b=hb8mizuEaFwIaoO/7023DcRfkC2KnoiQSICtBdWRmZ6OCUj76hUUcLQNQ96uxPAJBdoNpm sMKboAaa672IF/oyLjy7z8thoo2SKlB4GkwOPOvO60S9P30nTiCPleyl89ceyIpaLwpaST pdl3T6GuBufd0YvLvdWOkbTTKTY85Jo= Authentication-Results: imf06.hostedemail.com; dkim=pass header.d=redhat.com header.s=mimecast20190719 header.b=ilAGyRzm; spf=pass (imf06.hostedemail.com: domain of david@redhat.com designates 170.10.133.124 as permitted sender) smtp.mailfrom=david@redhat.com; dmarc=pass (policy=none) header.from=redhat.com X-Stat-Signature: seqwwzy7whmqf6izyys4wwcrp81pt1qw X-Rspamd-Queue-Id: 5E23C180043 X-Rspam-User: X-Rspamd-Server: rspam12 X-HE-Tag: 1661247574-99492 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On 19.08.22 10:34, Rebecca Mckeever wrote: > Add tests for memblock_add(), memblock_reserve(), memblock_remove(), > memblock_free(), and memblock_alloc() for the following test scenarios. > > memblock_add() and memblock_reserve(): > - add/reserve a memory block in the gap between two existing memory > blocks, and check that the blocks are merged into one region > - try to add/reserve memblock regions that extend past PHYS_ADDR_MAX > > memblock_remove() and memblock_free(): > - remove/free a region when it is the only available region > + These tests ensure that the first region is overwritten with a > "dummy" region when the last remaining region of that type is > removed or freed. > - remove/free() a region that overlaps with two existing regions of the > relevant type > - try to remove/free memblock regions that extend past PHYS_ADDR_MAX > > memblock_alloc(): > - try to allocate a region that is larger than the total size of available > memory (memblock.memory) > > Signed-off-by: Rebecca Mckeever Reviewed-by: David Hildenbrand -- Thanks, David / dhildenb