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 8A7B7C43470 for ; Wed, 28 Apr 2021 14:02:34 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 4F79B61443 for ; Wed, 28 Apr 2021 14:02:34 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S238380AbhD1ODR (ORCPT ); Wed, 28 Apr 2021 10:03:17 -0400 Received: from mga09.intel.com ([134.134.136.24]:18526 "EHLO mga09.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230057AbhD1ODK (ORCPT ); Wed, 28 Apr 2021 10:03:10 -0400 IronPort-SDR: GE39yXtwyDJiCSvBDaiKP4eM/ZOzfKzBt92nKMMiKeFm3Tw4Bx1oKqvqFKJ91DP/C5urC4vDap AfMBvRTKA6kQ== X-IronPort-AV: E=McAfee;i="6200,9189,9968"; a="196855512" X-IronPort-AV: E=Sophos;i="5.82,258,1613462400"; d="scan'208";a="196855512" Received: from orsmga008.jf.intel.com ([10.7.209.65]) by orsmga102.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 28 Apr 2021 07:02:25 -0700 IronPort-SDR: ICFpeV6AuVkXXBTyYbwDi9yOF5Bx47yzY6GI0s1tchPKGRw2eR8ZxwjeTZBUsYc6me9o66Wvk1 es5ht4D+z7HQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.82,258,1613462400"; d="scan'208";a="430311937" Received: from ceph.sh.intel.com ([10.239.241.176]) by orsmga008.jf.intel.com with ESMTP; 28 Apr 2021 07:02:23 -0700 From: Qiaowei Ren To: linux-bcache@vger.kernel.org Cc: qiaowei.ren@intel.com, jianpeng.ma@intel.com, colyli@suse.de, rdunlap@infradead.oom Subject: [bch-nvm-pages v9 6/6] bcache: get allocated pages from specific owner Date: Wed, 28 Apr 2021 17:39:52 -0400 Message-Id: <20210428213952.197504-7-qiaowei.ren@intel.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210428213952.197504-1-qiaowei.ren@intel.com> References: <20210428213952.197504-1-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-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 */ -- 2.25.1