linux-kernel - Re: [PATCH] xfs: add tunable threshold parameter for triggering zone GC

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Message-ID: <9a3cd21b-5b51-4aae-9f04-2a63f3cc68d7@roeck-us.net>
Date: Mon, 21 Apr 2025 23:22:47 -0700
From: Guenter Roeck <linux@...ck-us.net>
To: hch <hch@....de>
Cc: Carlos Maiolino <cem@...nel.org>, Hans Holmberg <Hans.Holmberg@....com>,
 Dave Chinner <david@...morbit.com>, "Darrick J . Wong" <djwong@...nel.org>,
 "linux-xfs@...r.kernel.org" <linux-xfs@...r.kernel.org>,
 "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] xfs: add tunable threshold parameter for triggering zone
 GC

On 4/21/25 23:01, hch wrote:
> On Mon, Apr 21, 2025 at 10:57:31PM -0700, Guenter Roeck wrote:
>>> free should be floored to zero, i.e.
>>>
>>> 	free = min(0, xfs_estimate_freecounter(mp, XC_FREE_RTEXTENTS));
>>>
>>
>> Do you mean max, maybe ?
> 
> Yes, sorry.
> 
> Also if you want the work taken off your hands I can prepare a patch
> as well, I just don't want to do that without approval from the
> original author.

I didn't actually plan to write a patch myself. I thought that either
Hans or Carlos would do that. Sorry if my replies caused a misunderstanding.

Guenter