From: David Howells <dhowells@redhat.com>
To: David Hildenbrand <david@redhat.com>
Cc: dhowells@redhat.com, Al Viro <viro@zeniv.linux.org.uk>,
Christoph Hellwig <hch@infradead.org>,
Matthew Wilcox <willy@infradead.org>,
Jens Axboe <axboe@kernel.dk>, Jan Kara <jack@suse.cz>,
Jeff Layton <jlayton@kernel.org>,
Logan Gunthorpe <logang@deltatee.com>,
linux-fsdevel@vger.kernel.org, linux-block@vger.kernel.org,
linux-kernel@vger.kernel.org, Christoph Hellwig <hch@lst.de>,
John Hubbard <jhubbard@nvidia.com>,
linux-mm@kvack.org
Subject: Re: [PATCH v7 2/8] iov_iter: Add a function to extract a page list from an iterator
Date: Fri, 27 Jan 2023 00:05:59 +0000 [thread overview]
Message-ID: <2907560.1674777959@warthog.procyon.org.uk> (raw)
In-Reply-To: <5a1796f3-e49c-80e8-2dd6-9a6e82939271@redhat.com>
David Hildenbrand <david@redhat.com> wrote:
> As raised already somewhere in the whole discussion by me, the right way to
> take such a long-term ping as vmsplice() does is to use
> FOLL_PIN|FOLL_LONGTERM.
So the pipe infrastructure would have to be able to pin pages instead of
carrying refs on them? What about pages just allocated and added to the pipe
ring in normal pipe use?
David
next prev parent reply other threads:[~2023-01-27 0:07 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20230120175556.3556978-1-dhowells@redhat.com>
2023-01-20 17:55 ` David Howells
2023-01-21 13:01 ` Christoph Hellwig
2023-01-21 13:10 ` Christoph Hellwig
2023-01-21 13:30 ` David Howells
2023-01-21 13:33 ` Christoph Hellwig
2023-01-23 11:28 ` David Hildenbrand
2023-01-23 11:51 ` David Howells
2023-01-23 13:11 ` David Hildenbrand
2023-01-23 13:19 ` David Howells
2023-01-23 13:24 ` David Hildenbrand
2023-01-23 19:56 ` John Hubbard
2023-01-26 22:15 ` Al Viro
2023-01-26 23:41 ` David Hildenbrand
2023-01-27 0:05 ` David Howells [this message]
2023-01-27 0:20 ` David Hildenbrand
2023-01-23 13:38 ` David Howells
2023-01-23 14:20 ` David Hildenbrand
2023-01-23 14:48 ` Christoph Hellwig
2023-01-23 16:11 ` Jan Kara
2023-01-23 16:17 ` Christoph Hellwig
2023-01-23 23:07 ` John Hubbard
2023-01-24 5:57 ` Christoph Hellwig
2023-01-24 6:55 ` John Hubbard
2023-01-23 12:00 ` David Howells
2023-01-20 17:55 ` [PATCH v7 3/8] mm: Provide a helper to drop a pin/ref on a page David Howells
2023-01-20 17:55 ` [PATCH v7 8/8] mm: Renumber FOLL_GET and FOLL_PIN down David Howells
2023-01-20 18:59 ` Matthew Wilcox
2023-01-20 19:18 ` David Howells
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