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[195.135.220.15]) by mx.google.com with ESMTPS id m13si3295033ejr.109.2019.02.26.04.32.57 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Tue, 26 Feb 2019 04:32:57 -0800 (PST) Received-SPF: pass (google.com: domain of vbabka@suse.cz designates 195.135.220.15 as permitted sender) client-ip=195.135.220.15; Authentication-Results: mx.google.com; spf=pass (google.com: domain of vbabka@suse.cz designates 195.135.220.15 as permitted sender) smtp.mailfrom=vbabka@suse.cz X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.220.254]) by mx1.suse.de (Postfix) with ESMTP id 4780FB11A; Tue, 26 Feb 2019 12:32:57 +0000 (UTC) Subject: Re: [PATCH] mm: compaction: remove unnecessary CONFIG_COMPACTION To: Yafang Shao , akpm@linux-foundation.org, mhocko@suse.com Cc: linux-mm@kvack.org, shaoyafang@didiglobal.com References: <1551161954-11025-1-git-send-email-laoar.shao@gmail.com> From: Vlastimil Babka Openpgp: preference=signencrypt Autocrypt: addr=vbabka@suse.cz; 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Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.5.0 MIME-Version: 1.0 In-Reply-To: <1551161954-11025-1-git-send-email-laoar.shao@gmail.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit 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 2/26/19 7:19 AM, Yafang Shao wrote: > The file trace/events/compaction.h is included only when > CONFIG_COMPACTION is defined, so it is unnecessary to use > CONFIG_COMPACTION again in this file. Are you sure? What about CONFIG_CMA? #if defined CONFIG_COMPACTION || defined CONFIG_CMA #define CREATE_TRACE_POINTS #include > Signed-off-by: Yafang Shao > --- > include/trace/events/compaction.h | 4 ---- > 1 file changed, 4 deletions(-) > > diff --git a/include/trace/events/compaction.h b/include/trace/events/compaction.h > index 6074eff..06fb680 100644 > --- a/include/trace/events/compaction.h > +++ b/include/trace/events/compaction.h > @@ -132,7 +132,6 @@ > __entry->sync ? "sync" : "async") > ); > > -#ifdef CONFIG_COMPACTION > TRACE_EVENT(mm_compaction_end, > TP_PROTO(unsigned long zone_start, unsigned long migrate_pfn, > unsigned long free_pfn, unsigned long zone_end, bool sync, > @@ -166,7 +165,6 @@ > __entry->sync ? "sync" : "async", > __print_symbolic(__entry->status, COMPACTION_STATUS)) > ); > -#endif > > TRACE_EVENT(mm_compaction_try_to_compact_pages, > > @@ -195,7 +193,6 @@ > __entry->prio) > ); > > -#ifdef CONFIG_COMPACTION > DECLARE_EVENT_CLASS(mm_compaction_suitable_template, > > TP_PROTO(struct zone *zone, > @@ -296,7 +293,6 @@ > > TP_ARGS(zone, order) > ); > -#endif > > TRACE_EVENT(mm_compaction_kcompactd_sleep, > >