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Tue, 24 Aug 2021 11:12:57 +0000 (UTC) Received: from dovecot-director2.suse.de ([192.168.254.65]) by imap1.suse-dmz.suse.de with ESMTPSA id +K4mOznUJGE9GAAAGKfGzw (envelope-from ); Tue, 24 Aug 2021 11:12:57 +0000 Message-ID: <325020b2-67b0-7cdd-36e2-bdb90f8820e3@suse.cz> Date: Tue, 24 Aug 2021 13:12:56 +0200 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.0.1 Subject: Re: [PATCHv2 1/2] kernel/workqueue: Make schedule_on_each_cpu as EXPORT_SYMBOL_GPL Content-Language: en-US To: Dennis Zhou , Ritesh Harjani Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org, Tejun Heo , Christoph Lameter , Christoph Hellwig References: <5afc2a0c4da65e71ccf24fe65396710d34fc662e.1629751104.git.riteshh@linux.ibm.com> From: Vlastimil Babka In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Authentication-Results: imf04.hostedemail.com; dkim=pass header.d=suse.cz header.s=susede2_rsa header.b=fRmx+NCz; dkim=pass header.d=suse.cz header.s=susede2_ed25519 header.b="WDUBB+J/"; spf=pass (imf04.hostedemail.com: domain of vbabka@suse.cz designates 195.135.220.29 as permitted sender) smtp.mailfrom=vbabka@suse.cz; dmarc=none X-Rspamd-Server: rspam05 X-Rspamd-Queue-Id: A496B50000AE X-Stat-Signature: yzzizocjnkeszf97rec8paa38qa6ww3k X-HE-Tag: 1629803579-8971 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 8/24/21 04:06, Dennis Zhou wrote: > Hello, > > On Tue, Aug 24, 2021 at 02:12:29AM +0530, Ritesh Harjani wrote: >> Make schedule_on_each_cpu as EXPORT_SYMBOL_GPL >> >> Signed-off-by: Ritesh Harjani >> --- >> [v1 -> v2]: Use EXPORT_SYMBOL_GPL instead of EXPORT_SYMBOL >> >> kernel/workqueue.c | 1 + >> 1 file changed, 1 insertion(+) >> >> diff --git a/kernel/workqueue.c b/kernel/workqueue.c >> index f148eacda55a..993f8983186d 100644 >> --- a/kernel/workqueue.c >> +++ b/kernel/workqueue.c >> @@ -3309,6 +3309,7 @@ int schedule_on_each_cpu(work_func_t func) >> free_percpu(works); >> return 0; >> } >> +EXPORT_SYMBOL_GPL(schedule_on_each_cpu); >> >> /** >> * execute_in_process_context - reliably execute the routine with user context >> -- >> 2.31.1 >> > > I think you missed the point of Christoph's comment. I agree with him > and don't think a test justifies exporting of this particular function. Could symbol namespaces help in these cases? It feels wrong to limit in-tree test modules this way. https://www.kernel.org/doc/html/latest/core-api/symbol-namespaces.html > Thanks, > Dennis >