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Tue, 22 Jun 2021 06:56:27 -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-out2.suse.de (Postfix) with ESMTPS id 8EE5A1FD45; Tue, 22 Jun 2021 10:54:10 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_rsa; t=1624359250; 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=i1Ni/Gzg9uvlmrsWko5N6LHxC1c+x+FU+0x79XPnh40=; b=xkjdSOPa1/mO8RpEyDYT5rWIAl73UEo1ZMj80AhMiiQRQp62xKeG7QEDjphQk+2EsWaGk/ KBBjvPIGeRsAj8as8841gCoGSbty6ujXR6d1cocEnB3RDUUqiGd0qwjPJ/0BjVly/a70k4 /Mz1hdAP7ymwClO7voo0/4+x0fygIS4= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_ed25519; t=1624359250; 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; 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bh=i1Ni/Gzg9uvlmrsWko5N6LHxC1c+x+FU+0x79XPnh40=; b=Cukq1yruwf2qKCWT6/tIULGAzIIaKn18OZgYLwKPG/dykR2YeLeHiaghaj3H5JuB/s0z1m fUKEO8vDLBKaLwDw== Received: from director2.suse.de ([192.168.254.72]) by imap3-int with ESMTPSA id 7F9sH1LB0WDmWgAALh3uQQ (envelope-from ); Tue, 22 Jun 2021 10:54:10 +0000 Subject: Re: [PATCH 08/14] bcache: get allocated pages from specific owner To: Coly Li , axboe@kernel.dk Cc: linux-bcache@vger.kernel.org, linux-block@vger.kernel.org, Jianpeng Ma , Qiaowei Ren References: <20210615054921.101421-1-colyli@suse.de> <20210615054921.101421-9-colyli@suse.de> From: Hannes Reinecke Message-ID: <42724b1b-8b6d-8118-84c6-ec76f3f78e19@suse.de> Date: Tue, 22 Jun 2021 12:54:10 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.9.1 MIME-Version: 1.0 In-Reply-To: <20210615054921.101421-9-colyli@suse.de> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-bcache@vger.kernel.org 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 > 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 Cheers, Hannes -- Dr. Hannes Reinecke Kernel Storage Architect hare@suse.de +49 911 74053 688 SUSE Software Solutions Germany GmbH, Maxfeldstr. 5, 90409 Nürnberg HRB 36809 (AG Nürnberg), GF: Felix Imendörffer