linux-kernel - Re: [PATCH v1 2/3] Treewide: Stop corrupting socket's task

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Message-ID: <4585e331-03ad-959f-e715-29af15f63712@linuxfoundation.org>
Date:   Mon, 21 Nov 2022 14:40:56 -0700
From:   Shuah Khan <skhan@...uxfoundation.org>
To:     Benjamin Coddington <bcodding@...hat.com>,
        David Howells <dhowells@...hat.com>
Cc:     netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
        Philipp Reisner <philipp.reisner@...bit.com>,
        Lars Ellenberg <lars.ellenberg@...bit.com>,
        Christoph Böhmwalder 
        <christoph.boehmwalder@...bit.com>, Jens Axboe <axboe@...nel.dk>,
        Josef Bacik <josef@...icpanda.com>,
        Keith Busch <kbusch@...nel.org>,
        Christoph Hellwig <hch@....de>,
        Sagi Grimberg <sagi@...mberg.me>,
        Lee Duncan <lduncan@...e.com>, Chris Leech <cleech@...hat.com>,
        Mike Christie <michael.christie@...cle.com>,
        "James E.J. Bottomley" <jejb@...ux.ibm.com>,
        "Martin K. Petersen" <martin.petersen@...cle.com>,
        Valentina Manea <valentina.manea.m@...il.com>,
        Shuah Khan <shuah@...nel.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Marc Dionne <marc.dionne@...istor.com>,
        Steve French <sfrench@...ba.org>,
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        Chuck Lever <chuck.lever@...cle.com>,
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        Shuah Khan <skhan@...uxfoundation.org>
Subject: Re: [PATCH v1 2/3] Treewide: Stop corrupting socket's task_frag

On 11/21/22 07:34, Benjamin Coddington wrote:
> On 21 Nov 2022, at 8:56, David Howells wrote:
> 
>> Benjamin Coddington <bcodding@...hat.com> wrote:
>>
>>> Since moving to memalloc_nofs_save/restore, SUNRPC has stopped setting the
>>> GFP_NOIO flag on sk_allocation which the networking system uses to decide
>>> when it is safe to use current->task_frag.
>>
>> Um, what's task_frag?
> 
> Its a per-task page_frag used to coalesce small writes for networking -- see:
> 
> 5640f7685831 net: use a per task frag allocator
> 
> Ben
> 
> 

I am not seeing this in the mainline. Where can find this commit?

thanks,
-- Shuah