From: Jason Gunthorpe <jgg@nvidia.com>
To: liweihang <liweihang@huawei.com>
Cc: Leon Romanovsky <leon@kernel.org>,
"dledford@redhat.com" <dledford@redhat.com>,
"linux-rdma@vger.kernel.org" <linux-rdma@vger.kernel.org>,
"linuxarm@openeuler.org" <linuxarm@openeuler.org>
Subject: Re: [PATCH RFC 1/7] RDMA/hns: Introduce DCA for RC QP
Date: Thu, 21 Jan 2021 09:34:45 -0400 [thread overview]
Message-ID: <20210121133445.GY4147@nvidia.com> (raw)
In-Reply-To: <96d7fb7db36e4bce8c556d0de5c8f961@huawei.com>
On Thu, Jan 21, 2021 at 01:33:42PM +0000, liweihang wrote:
> We need to allocate memory while spin_lock is hold, how about using GFP_KERNEL or
> GFP_NOWAIT?
You should try hard not to do that. Convert he spinlock to a mutex,
for instance.
Jason
next prev parent reply other threads:[~2021-01-21 13:59 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-01-15 10:22 [PATCH RFC 0/7] RDMA/hns: Add support for Dynamic Context Attachment Weihang Li
2021-01-15 10:22 ` [PATCH RFC 1/7] RDMA/hns: Introduce DCA for RC QP Weihang Li
2021-01-20 8:10 ` Leon Romanovsky
2021-01-21 7:01 ` liweihang
2021-01-21 8:53 ` Leon Romanovsky
2021-01-21 13:33 ` liweihang
2021-01-21 13:34 ` Jason Gunthorpe [this message]
2021-01-21 13:48 ` liweihang
2021-01-21 13:51 ` Jason Gunthorpe
2021-01-22 9:06 ` liweihang
2021-01-15 10:22 ` [PATCH RFC 2/7] RDMA/hns: Add method for shrinking DCA memory pool Weihang Li
2021-01-15 10:22 ` [PATCH RFC 3/7] RDMA/hns: Configure DCA mode for the userspace QP Weihang Li
2021-01-15 10:22 ` [PATCH RFC 4/7] RDMA/hns: Add method for attaching WQE buffer Weihang Li
2021-01-15 10:22 ` [PATCH RFC 5/7] RDMA/hns: Setup the configuration of WQE addressing to QPC Weihang Li
2021-01-15 10:22 ` [PATCH RFC 6/7] RDMA/hns: Add method to detach WQE buffer Weihang Li
2021-01-15 10:22 ` [PATCH RFC 7/7] RDMA/hns: Add method to query WQE buffer's address Weihang 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=20210121133445.GY4147@nvidia.com \
--to=jgg@nvidia.com \
--cc=dledford@redhat.com \
--cc=leon@kernel.org \
--cc=linux-rdma@vger.kernel.org \
--cc=linuxarm@openeuler.org \
--cc=liweihang@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 an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.