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Fri, 26 Mar 2021 09:11:09 +0000 (UTC) Received: from [10.36.114.167] (ovpn-114-167.ams2.redhat.com [10.36.114.167]) by smtp.corp.redhat.com (Postfix) with ESMTP id 5D47210016F4; Fri, 26 Mar 2021 09:11:08 +0000 (UTC) Subject: Re: [PATCH] mm/sparse: Add the missing sparse_buffer_fini() in error branch To: Wang Wensheng , akpm@linux-foundation.org, pasha.tatashin@oracle.com, osalvador@suse.de, linux-mm@kvack.org, linux-kernel@vger.kernel.org Cc: rui.xiang@huawei.com References: <20210326022325.3181-1-wangwensheng4@huawei.com> From: David Hildenbrand Organization: Red Hat GmbH Message-ID: <85e0d0f0-e6c7-e287-c6b2-ab5d37b718e2@redhat.com> Date: Fri, 26 Mar 2021 10:11:07 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.8.0 MIME-Version: 1.0 In-Reply-To: <20210326022325.3181-1-wangwensheng4@huawei.com> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit X-Scanned-By: MIMEDefang 2.84 on 10.5.11.22 X-Stat-Signature: am3a88uq1t7b9on3r1peaf7ac4338xj8 X-Rspamd-Server: rspam05 X-Rspamd-Queue-Id: 4BA416000100 Received-SPF: none (redhat.com>: No applicable sender policy available) receiver=imf09; identity=mailfrom; envelope-from=""; helo=us-smtp-delivery-124.mimecast.com; client-ip=170.10.133.124 X-HE-DKIM-Result: pass/pass X-HE-Tag: 1616749875-87229 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 26.03.21 03:23, Wang Wensheng wrote: > sparse_buffer_init() and sparse_buffer_fini() should appear in pair, or > a WARN issue would be through the next time sparse_buffer_init() runs. > > Add the missing sparse_buffer_fini() in error branch. > > Fixes: 85c77f791390 ("mm/sparse: add new sparse_init_nid() and sparse_init()") > Signed-off-by: Wang Wensheng > --- > mm/sparse.c | 1 + > 1 file changed, 1 insertion(+) > > diff --git a/mm/sparse.c b/mm/sparse.c > index 7bd23f9..33406ea 100644 > --- a/mm/sparse.c > +++ b/mm/sparse.c > @@ -547,6 +547,7 @@ static void __init sparse_init_nid(int nid, unsigned long pnum_begin, > pr_err("%s: node[%d] memory map backing failed. Some memory will not be available.", > __func__, nid); > pnum_begin = pnum; > + sparse_buffer_fini(); > goto failed; > } > check_usemap_section_nr(nid, usage); > I am confused, why the resend, and why without RBs? https://lkml.kernel.org/r/20210325113155.118574-1-wangwensheng4@huawei.com -- Thanks, David / dhildenb