From: Jason Gunthorpe <jgg@ziepe.ca>
To: John Hubbard <jhubbard@nvidia.com>
Cc: Andrew Morton <akpm@linux-foundation.org>,
Ira Weiny <ira.weiny@intel.com>,
linux-rdma@vger.kernel.org, linux-mm@kvack.org,
LKML <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH 1/1] IB/umem: use get_user_pages_fast() to pin DMA pages
Date: Tue, 12 Nov 2019 16:29:27 -0400 [thread overview]
Message-ID: <20191112202927.GC5584@ziepe.ca> (raw)
In-Reply-To: <20191109020434.389855-2-jhubbard@nvidia.com>
On Fri, Nov 08, 2019 at 06:04:34PM -0800, John Hubbard wrote:
> And get rid of the mmap_sem calls, as part of that. Note
> that get_user_pages_fast() will, if necessary, fall back to
> __gup_longterm_unlocked(), which takes the mmap_sem as needed.
>
> Cc: Jason Gunthorpe <jgg@ziepe.ca>
> Cc: Ira Weiny <ira.weiny@intel.com>
> Signed-off-by: John Hubbard <jhubbard@nvidia.com>
> ---
> drivers/infiniband/core/umem.c | 17 ++++++-----------
> 1 file changed, 6 insertions(+), 11 deletions(-)
Reviewed-by: Jason Gunthorpe <jgg@mellanox.com>
This can go through Andrew's tree if he takes this larger series,
otherwise I'll grab it
Thanks,
Jason
prev parent reply other threads:[~2019-11-12 20:29 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-11-09 2:04 [PATCH 0/1] IB/umem: use get_user_pages_fast() to pin DMA pages John Hubbard
2019-11-09 2:04 ` [PATCH 1/1] " John Hubbard
2019-11-11 3:21 ` Ira Weiny
2019-11-11 21:44 ` John Hubbard
2019-11-12 20:29 ` Jason Gunthorpe [this message]
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=20191112202927.GC5584@ziepe.ca \
--to=jgg@ziepe.ca \
--cc=akpm@linux-foundation.org \
--cc=ira.weiny@intel.com \
--cc=jhubbard@nvidia.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mm@kvack.org \
--cc=linux-rdma@vger.kernel.org \
/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;
as well as URLs for NNTP newsgroup(s).