From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-15.3 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,NICE_REPLY_A,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_SANE_1 autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id C4FF2C433ED for ; Tue, 11 May 2021 13:45:20 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 92DFC6128E for ; Tue, 11 May 2021 13:45:20 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231587AbhEKNq0 (ORCPT ); Tue, 11 May 2021 09:46:26 -0400 Received: from mx2.suse.de ([195.135.220.15]:59964 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231461AbhEKNqY (ORCPT ); Tue, 11 May 2021 09:46:24 -0400 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.221.27]) by mx2.suse.de (Postfix) with ESMTP id BFB35AE81; Tue, 11 May 2021 13:45:16 +0000 (UTC) Subject: Re: [bch-nvm-pages v9 6/6] bcache: get allocated pages from specific owner To: Qiaowei Ren , jianpeng.ma@intel.com Cc: linux-bcache@vger.kernel.org References: <20210428213952.197504-1-qiaowei.ren@intel.com> <20210428213952.197504-7-qiaowei.ren@intel.com> From: Coly Li Message-ID: Date: Tue, 11 May 2021 21:45:12 +0800 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:78.0) Gecko/20100101 Thunderbird/78.10.1 MIME-Version: 1.0 In-Reply-To: <20210428213952.197504-7-qiaowei.ren@intel.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-bcache@vger.kernel.org On 4/29/21 5:39 AM, Qiaowei Ren wrote: > From: Jianpeng Ma > > This patch implements bch_get_allocated_pages() of the buddy to be used to > get allocated pages from specific owner. > > Signed-off-by: Jianpeng Ma > Co-developed-by: Qiaowei Ren > Signed-off-by: Qiaowei Ren > Signed-off-by: Coly Li > --- > drivers/md/bcache/nvm-pages.c | 6 ++++++ > drivers/md/bcache/nvm-pages.h | 5 +++++ > 2 files changed, 11 insertions(+) > > diff --git a/drivers/md/bcache/nvm-pages.c b/drivers/md/bcache/nvm-pages.c > index 39807046ecce..0be89a03255c 100644 > --- a/drivers/md/bcache/nvm-pages.c > +++ b/drivers/md/bcache/nvm-pages.c > @@ -389,6 +389,12 @@ void *bch_nvm_alloc_pages(int order, const char *owner_uuid) > } > EXPORT_SYMBOL_GPL(bch_nvm_alloc_pages); > > +struct bch_nvm_pages_owner_head *bch_get_allocated_pages(const char *owner_uuid) > +{ > + return find_owner_head(owner_uuid, false); > +} > +EXPORT_SYMBOL_GPL(bch_get_allocated_pages); > + > static int init_owner_info(struct bch_nvm_namespace *ns) > { > struct bch_owner_list_head *owner_list_head = ns->sb->owner_list_head; > diff --git a/drivers/md/bcache/nvm-pages.h b/drivers/md/bcache/nvm-pages.h > index 918aee6a9afc..cfb3e8ef01ee 100644 > --- a/drivers/md/bcache/nvm-pages.h > +++ b/drivers/md/bcache/nvm-pages.h > @@ -64,6 +64,7 @@ int bch_nvm_init(void); > void bch_nvm_exit(void); > void *bch_nvm_alloc_pages(int order, const char *owner_uuid); > void bch_nvm_free_pages(void *addr, int order, const char *owner_uuid); > +struct bch_nvm_pages_owner_head *bch_get_allocated_pages(const char *owner_uuid); > > #else > > @@ -81,6 +82,10 @@ static inline void *bch_nvm_alloc_pages(int order, const char *owner_uuid) > return NULL; > } > static inline void bch_nvm_free_pages(void *addr, int order, const char *owner_uuid) { } > +static inline struct bch_nvm_pages_owner_head *bch_get_allocated_pages(const char *owner_uuid) > +{ > + return NULL; > +} > > #endif /* CONFIG_BCACHE_NVM_PAGES */ > > It looks fine to me. Thanks for the great work :-) Coly Li