linux-kernel - Re: [PATCH 2/6] writeback: support retrieving per group debug writeback stats of bdi

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Message-ID: <956133f9-f758-002f-64a3-4c44d4bd04d5@huaweicloud.com>
Date: Thu, 21 Mar 2024 11:45:29 +0800
From: Kemeng Shi <shikemeng@...weicloud.com>
To: Tejun Heo <tj@...nel.org>
Cc: akpm@...ux-foundation.org, linux-mm@...ck.org,
 linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
 willy@...radead.org, bfoster@...hat.com, jack@...e.cz, dsterba@...e.com,
 mjguzik@...il.com, dhowells@...hat.com, peterz@...radead.org
Subject: Re: [PATCH 2/6] writeback: support retrieving per group debug
 writeback stats of bdi



on 3/20/2024 11:01 PM, Tejun Heo wrote:
> On Wed, Mar 20, 2024 at 07:02:18PM +0800, Kemeng Shi wrote:
>> diff --git a/include/linux/writeback.h b/include/linux/writeback.h
>> index 9845cb62e40b..bb1ce1123b52 100644
>> --- a/include/linux/writeback.h
>> +++ b/include/linux/writeback.h
>> @@ -355,6 +355,7 @@ int dirtytime_interval_handler(struct ctl_table *table, int write,
>>  
>>  void global_dirty_limits(unsigned long *pbackground, unsigned long *pdirty);
>>  unsigned long wb_calc_thresh(struct bdi_writeback *wb, unsigned long thresh);
>> +unsigned long wb_calc_cg_thresh(struct bdi_writeback *wb);
> 
> Would cgwb_calc_thresh() be an easier name?
> 
Sure, will rename it in next version. Thansk!
> Thanks.
>