From: Kemeng Shi <shikemeng@huaweicloud.com>
To: Tejun Heo <tj@kernel.org>
Cc: willy@infradead.org, akpm@linux-foundation.org, jack@suse.cz,
linux-fsdevel@vger.kernel.org, linux-mm@kvack.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH 02/10] writeback: add general function domain_dirty_avail to calculate dirty and avail of domain
Date: Mon, 6 May 2024 09:32:41 +0800 [thread overview]
Message-ID: <d69093d9-0786-b16f-1ed9-7cc5e37791d9@huaweicloud.com> (raw)
In-Reply-To: <ZjJysTZO6IOpe4BT@slm.duckdns.org>
on 5/2/2024 12:49 AM, Tejun Heo wrote:
> Hello,
>
> On Mon, Apr 29, 2024 at 11:47:30AM +0800, Kemeng Shi wrote:
>> +/*
>> + * Dirty background will ignore pages being written as we're trying to
>> + * decide whether to put more under writeback.
>> + */
>> +static void domain_dirty_avail(struct dirty_throttle_control *dtc, bool bg)
>
> I wonder whether it'd be better if the bool arg is flipped to something like
> `bool include_writeback` so that it's clear what the difference is between
Sure, I rename 'bool bg' to 'bool include_writeback'.
> the two. Also, do global_domain_dirty_avail() and wb_domain_dirty_avail()
> have to be separate functions? They seem trivial enough to include into the
> body of domain_dirty_avail(). Are they used directly elsewhere?
I will fold global_domain_dirty_avail() and wb_domain_dirty_avail() and
just use domain_dirty_avail.
>
>> +{
>> + struct dirty_throttle_control *gdtc = mdtc_gdtc(dtc);
>> +
>> + if (gdtc)
>
> I know this test is used elsewhere but it isn't the most intuitive. Would it
> make sense to add dtc_is_global() (or dtc_is_gdtc()) helper instead?
Will add helper dtc_is_global().
Thanks.
Kemeng
>
>> + wb_domain_dirty_avail(dtc, bg);
>> + else
>> + global_domain_dirty_avail(dtc, bg);
>> +}
>
> Thanks.
>
next prev parent reply other threads:[~2024-05-06 1:32 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-04-29 3:47 [PATCH 00/10] Add helper functions to remove repeated code and Kemeng Shi
2024-04-29 3:47 ` [PATCH 01/10] writeback: factor out wb_bg_dirty_limits to remove repeated code Kemeng Shi
2024-05-01 16:40 ` Tejun Heo
2024-04-29 3:47 ` [PATCH 02/10] writeback: add general function domain_dirty_avail to calculate dirty and avail of domain Kemeng Shi
2024-05-01 16:49 ` Tejun Heo
2024-05-06 1:32 ` Kemeng Shi [this message]
2024-04-29 3:47 ` [PATCH 03/10] writeback: factor out domain_over_bg_thresh to remove repeated code Kemeng Shi
2024-05-01 16:53 ` Tejun Heo
2024-04-29 3:47 ` [PATCH 04/10] writeback use [global/wb]_domain_dirty_avail helper in cgwb_calc_thresh Kemeng Shi
2024-05-01 16:56 ` Tejun Heo
2024-05-06 1:36 ` Kemeng Shi
2024-04-29 3:47 ` [PATCH 05/10] writeback: call domain_dirty_avail in balance_dirty_pages Kemeng Shi
2024-05-01 16:57 ` Tejun Heo
2024-05-06 1:36 ` Kemeng Shi
2024-04-29 3:47 ` [PATCH 06/10] writeback: Factor out code of freerun to remove repeated code Kemeng Shi
2024-05-01 17:15 ` Tejun Heo
2024-05-06 1:38 ` Kemeng Shi
2024-04-29 3:47 ` [PATCH 07/10] writeback: factor out wb_dirty_freerun to remove more repeated freerun code Kemeng Shi
2024-05-01 17:18 ` Tejun Heo
2024-05-06 1:53 ` Kemeng Shi
2024-04-29 3:47 ` [PATCH 08/10] writeback: factor out balance_domain_limits to remove repeated code Kemeng Shi
2024-05-01 17:21 ` Tejun Heo
2024-04-29 3:47 ` [PATCH 09/10] writeback: factor out wb_dirty_exceeded " Kemeng Shi
2024-04-30 7:24 ` Dan Carpenter
2024-05-06 2:15 ` Kemeng Shi
2024-05-01 17:28 ` Tejun Heo
2024-04-29 3:47 ` [PATCH 10/10] writeback: factor out balance_wb_limits " Kemeng Shi
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