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,URIBL_BLOCKED, 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 DA9E1C43460 for ; Tue, 13 Apr 2021 06:27:13 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id B761B61370 for ; Tue, 13 Apr 2021 06:27:13 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230017AbhDMG1b (ORCPT ); Tue, 13 Apr 2021 02:27:31 -0400 Received: from mga18.intel.com ([134.134.136.126]:18137 "EHLO mga18.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229950AbhDMG1b (ORCPT ); Tue, 13 Apr 2021 02:27:31 -0400 IronPort-SDR: 4U+lCst9C3nRqYYZy+AVQIh9FoFQRGF2lycXfTBwezQm08SOy5fPIJDYc2KvuofRcxFJ2b1NAv J2Ib9HgdN+vQ== X-IronPort-AV: E=McAfee;i="6200,9189,9952"; a="181869354" X-IronPort-AV: E=Sophos;i="5.82,218,1613462400"; d="scan'208";a="181869354" Received: from orsmga001.jf.intel.com ([10.7.209.18]) by orsmga106.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 12 Apr 2021 23:27:12 -0700 IronPort-SDR: Rll6wTyMiZDseViZUXkrKPfMTpTx5Y/PsqXLHVbkqYNOwJVzfMZNwihLo1IH9RVDvWhBgKS0HZ LvpUbQWqGutw== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.82,218,1613462400"; d="scan'208";a="460470400" Received: from ceph.sh.intel.com ([10.239.241.176]) by orsmga001.jf.intel.com with ESMTP; 12 Apr 2021 23:27:10 -0700 From: Qiaowei Ren To: Coly Li Cc: Qiaowei Ren , Jianpeng Ma , linux-bcache@vger.kernel.org Subject: [bch-nvm-pages v8 6/6] bcache: get allocated pages from specific owner Date: Tue, 13 Apr 2021 10:05:49 -0400 Message-Id: <20210413140549.224482-7-qiaowei.ren@intel.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210413140549.224482-1-qiaowei.ren@intel.com> References: <20210413140549.224482-1-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 | 6 ++++++ 2 files changed, 12 insertions(+) diff --git a/drivers/md/bcache/nvm-pages.c b/drivers/md/bcache/nvm-pages.c index eaa6e18f3cad..c7e3ccc6af46 100644 --- a/drivers/md/bcache/nvm-pages.c +++ b/drivers/md/bcache/nvm-pages.c @@ -390,6 +390,12 @@ 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..ef4aa4a0f286 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 +82,11 @@ 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