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=-17.3 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,NICE_REPLY_A,SPF_HELO_NONE,SPF_PASS, 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 57121C4743C for ; Wed, 23 Jun 2021 06:08:22 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 3942161186 for ; Wed, 23 Jun 2021 06:08:22 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229726AbhFWGKi (ORCPT ); Wed, 23 Jun 2021 02:10:38 -0400 Received: from smtp-out1.suse.de ([195.135.220.28]:43018 "EHLO smtp-out1.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229660AbhFWGKi (ORCPT ); Wed, 23 Jun 2021 02:10:38 -0400 Received: from imap.suse.de (imap-alt.suse-dmz.suse.de [192.168.254.47]) (using TLSv1.2 with cipher ECDHE-ECDSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp-out1.suse.de (Postfix) with ESMTPS id 514252195A; Wed, 23 Jun 2021 06:08:20 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_rsa; t=1624428500; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=BJpyVZdke16d/9FOBE6NzBiyoDDJPlNtlwfP3Kla7Ys=; b=J5xDNd9Hhjt2M2kWVTTHKj8oPRAQH2d4eQ0zmpkiFOUNMmIbK38kLx0z+n0ZwSObb8s01n vtqxbQlVFdzjhk7yjRvnUydPgXoPntVUm/BVYdbGkPcE5tmoSwbombKhIkXp/Uk8AuOmo3 s9p/PXWW8LJAPZranDh52EREXHQE/XY= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_ed25519; t=1624428500; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=BJpyVZdke16d/9FOBE6NzBiyoDDJPlNtlwfP3Kla7Ys=; b=ZNv+ixAcCywad4AfqjRKK7Xq7G3u1sIQCMmFGj2v0O5R1b9aIni+dMR0CBqbn0Oip96Z/t Wu7/OOdkSwLXHcAw== Received: from imap3-int (imap-alt.suse-dmz.suse.de [192.168.254.47]) by imap.suse.de (Postfix) with ESMTP id E7FA311A97; Wed, 23 Jun 2021 06:08:18 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_rsa; t=1624428500; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=BJpyVZdke16d/9FOBE6NzBiyoDDJPlNtlwfP3Kla7Ys=; b=J5xDNd9Hhjt2M2kWVTTHKj8oPRAQH2d4eQ0zmpkiFOUNMmIbK38kLx0z+n0ZwSObb8s01n vtqxbQlVFdzjhk7yjRvnUydPgXoPntVUm/BVYdbGkPcE5tmoSwbombKhIkXp/Uk8AuOmo3 s9p/PXWW8LJAPZranDh52EREXHQE/XY= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_ed25519; t=1624428500; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=BJpyVZdke16d/9FOBE6NzBiyoDDJPlNtlwfP3Kla7Ys=; b=ZNv+ixAcCywad4AfqjRKK7Xq7G3u1sIQCMmFGj2v0O5R1b9aIni+dMR0CBqbn0Oip96Z/t Wu7/OOdkSwLXHcAw== Received: from director2.suse.de ([192.168.254.72]) by imap3-int with ESMTPSA id doE3L9LP0mA8XgAALh3uQQ (envelope-from ); Wed, 23 Jun 2021 06:08:18 +0000 Subject: Re: [PATCH 08/14] bcache: get allocated pages from specific owner To: Hannes Reinecke Cc: linux-bcache@vger.kernel.org, axboe@kernel.dk, linux-block@vger.kernel.org, Jianpeng Ma , Qiaowei Ren References: <20210615054921.101421-1-colyli@suse.de> <20210615054921.101421-9-colyli@suse.de> <42724b1b-8b6d-8118-84c6-ec76f3f78e19@suse.de> From: Coly Li Message-ID: <0be3f724-2419-89f6-73a7-6269d495d4e1@suse.de> Date: Wed, 23 Jun 2021 14:08:17 +0800 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:78.0) Gecko/20100101 Thunderbird/78.11.0 MIME-Version: 1.0 In-Reply-To: <42724b1b-8b6d-8118-84c6-ec76f3f78e19@suse.de> Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit Content-Language: en-US Precedence: bulk List-ID: X-Mailing-List: linux-bcache@vger.kernel.org On 6/22/21 6:54 PM, Hannes Reinecke wrote: > On 6/15/21 7:49 AM, Coly Li wrote: >> From: Jianpeng Ma >> >> This patch implements bch_get_allocated_pages() of the buddy to be used to > buddy allocator > Copied. Will be updated in next post. >> 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 74d08950c67c..42b0504d9564 100644 >> --- a/drivers/md/bcache/nvm-pages.c >> +++ b/drivers/md/bcache/nvm-pages.c >> @@ -397,6 +397,12 @@ 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); >> + >> #define BCH_PGOFF_TO_KVADDR(pgoff) ((void *)((unsigned long)pgoff << PAGE_SHIFT)) >> >> static int init_owner_info(struct bch_nvm_namespace *ns) >> diff --git a/drivers/md/bcache/nvm-pages.h b/drivers/md/bcache/nvm-pages.h >> index 0ca699166855..c763bf2e2721 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 */ >> >> > Reviewed-by: Hannes Reinecke Thanks for your review. Coly Li