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=-14.8 required=3.0 tests=BAYES_00, DATE_IN_FUTURE_06_12,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT 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 5B187C4332B for ; Wed, 17 Mar 2021 07:31:47 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 2B5EB64F75 for ; Wed, 17 Mar 2021 07:31:47 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229873AbhCQHbP (ORCPT ); Wed, 17 Mar 2021 03:31:15 -0400 Received: from mga09.intel.com ([134.134.136.24]:61940 "EHLO mga09.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230036AbhCQHaw (ORCPT ); Wed, 17 Mar 2021 03:30:52 -0400 IronPort-SDR: 1QV+dDZBZ02pUUtOI0aPVO3c4pJIK00qn+lihVjLF4p4KFyjl/kqk9qOkOh+2tE8fNAIoVdBy1 CtZ9RE1shewA== X-IronPort-AV: E=McAfee;i="6000,8403,9925"; a="189500627" X-IronPort-AV: E=Sophos;i="5.81,255,1610438400"; d="scan'208";a="189500627" Received: from fmsmga006.fm.intel.com ([10.253.24.20]) by orsmga102.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 17 Mar 2021 00:30:51 -0700 IronPort-SDR: wtt8pR10gPqZ2P/eAdQlnmcfuKaCn0vbVVGkWqdgbyK3bbxrrwkleC3Iqf8XNZGdSTssMzV3eM W6Oj3XoZXx3g== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.81,255,1610438400"; d="scan'208";a="602130360" Received: from ceph.sh.intel.com ([10.239.241.176]) by fmsmga006.fm.intel.com with ESMTP; 17 Mar 2021 00:30:50 -0700 From: Qiaowei Ren To: Coly Li Cc: Qiaowei Ren , Jianpeng Ma , linux-bcache@vger.kernel.org Subject: [bch-nvm-pages v7 6/6] bcache: get allocated pages from specific owner Date: Wed, 17 Mar 2021 11:10:29 -0400 Message-Id: <20210317151029.40735-7-qiaowei.ren@intel.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210317151029.40735-1-qiaowei.ren@intel.com> References: <20210317151029.40735-1-qiaowei.ren@intel.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-bcache@vger.kernel.org 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-authored-by: Qiaowei Ren --- drivers/md/bcache/nvm-pages.c | 6 ++++++ drivers/md/bcache/nvm-pages.h | 7 ++++++- 2 files changed, 12 insertions(+), 1 deletion(-) diff --git a/drivers/md/bcache/nvm-pages.c b/drivers/md/bcache/nvm-pages.c index c5b1811b201c..a8b3c53d7aaf 100644 --- a/drivers/md/bcache/nvm-pages.c +++ b/drivers/md/bcache/nvm-pages.c @@ -380,6 +380,12 @@ 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 4ea831894583..87b1efc301c8 100644 --- a/drivers/md/bcache/nvm-pages.h +++ b/drivers/md/bcache/nvm-pages.h @@ -62,7 +62,7 @@ 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 static inline struct bch_nvm_namespace *bch_register_namespace(const char *dev_path) @@ -81,6 +81,11 @@ static inline void *bch_nvm_alloc_pages(int order, const char *owner_uuid) 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 */ #endif /* _BCACHE_NVM_PAGES_H */ -- 2.25.1