From: Damien Le Moal <dlemoal@kernel.org>
To: John Garry <john.g.garry@oracle.com>,
Yihang Li <liyihang9@huawei.com>,
yanaijie@huawei.com, jejb@linux.ibm.com,
martin.petersen@oracle.com, chenxiang66@hisilicon.com
Cc: linux-scsi@vger.kernel.org, linux-kernel@vger.kernel.org,
linuxarm@huawei.com, prime.zeng@huawei.com,
yangxingui@huawei.com
Subject: Re: [PATCH v2] scsi: libsas: Allocation SMP request is aligned to ARCH_DMA_MINALIGN
Date: Tue, 26 Mar 2024 22:40:35 +0900 [thread overview]
Message-ID: <79bca118-5027-4153-9fea-bda4c5ad6edb@kernel.org> (raw)
In-Reply-To: <0ba9914d-7060-498a-beac-2b19770e1963@oracle.com>
On 3/26/24 22:32, John Garry wrote:
>> John,
>>
>> Unrelated to this patch, but I wonder if the GFP_KERNEL used here shouldn't be
>> GFP_NOIO... Is this ever called in the IO path or error recovery ?
>>
>
> These should not be called in the IO path - as they are management
> functions. But I am quite confident that they can be called in SCSI
> error handling (for libsas).
So it sounds like GFP_NOIO would be a lot safer...
>
> Thanks,
> John
--
Damien Le Moal
Western Digital Research
next prev parent reply other threads:[~2024-03-26 13:40 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-03-26 12:43 Yihang Li
2024-03-26 13:14 ` Damien Le Moal
2024-03-26 13:32 ` John Garry
2024-03-26 13:40 ` Damien Le Moal [this message]
2024-03-28 6:35 ` Christoph Hellwig
2024-03-28 6:59 ` Yihang Li
2024-03-28 7:23 ` Damien Le Moal
2024-03-28 7:29 ` Christoph Hellwig
2024-03-28 7:36 ` Damien Le Moal
2024-03-28 7:45 ` Christoph Hellwig
2024-03-28 8:00 ` Yihang Li
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=79bca118-5027-4153-9fea-bda4c5ad6edb@kernel.org \
--to=dlemoal@kernel.org \
--cc=chenxiang66@hisilicon.com \
--cc=jejb@linux.ibm.com \
--cc=john.g.garry@oracle.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-scsi@vger.kernel.org \
--cc=linuxarm@huawei.com \
--cc=liyihang9@huawei.com \
--cc=martin.petersen@oracle.com \
--cc=prime.zeng@huawei.com \
--cc=yanaijie@huawei.com \
--cc=yangxingui@huawei.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox
all inboxes | Powered by JetHome®