From: Linus Torvalds <torvalds@linux-foundation.org>
To: David Howells <dhowells@redhat.com>
Cc: Matthew Wilcox <willy@infradead.org>,
Jens Axboe <axboe@kernel.dk>, Al Viro <viro@zeniv.linux.org.uk>,
Christoph Hellwig <hch@infradead.org>, Jan Kara <jack@suse.cz>,
Jeff Layton <jlayton@kernel.org>,
David Hildenbrand <david@redhat.com>,
Jason Gunthorpe <jgg@nvidia.com>,
Logan Gunthorpe <logang@deltatee.com>,
Hillf Danton <hdanton@sina.com>,
linux-fsdevel@vger.kernel.org, linux-block@vger.kernel.org,
linux-kernel@vger.kernel.org, linux-mm@kvack.org,
Daniel Golle <daniel@makrotopia.org>,
Guenter Roeck <groeck7@gmail.com>, Christoph Hellwig <hch@lst.de>,
John Hubbard <jhubbard@nvidia.com>,
Hugh Dickins <hughd@google.com>
Subject: Re: [PATCH v17 03/14] shmem: Implement splice-read
Date: Tue, 14 Mar 2023 12:07:36 -0700 [thread overview]
Message-ID: <CAHk-=wh-OKQdK2AE+CD_Y5bimnoSH=_4+F5EOZoGUf3SGJdxGA@mail.gmail.com> (raw)
In-Reply-To: <3761465.1678818404@warthog.procyon.org.uk>
On Tue, Mar 14, 2023 at 11:26 AM David Howells <dhowells@redhat.com> wrote:
>
> Are you okay if we go with my current patch for the moment?
I guess.
But please at least stop doing the
get_page(buf->page);
on the zero-page (which includes using no-op .get and .put functions
in zero_pipe_buf_ops().
Maybe we can do /dev/null some day and actually have a common case for those.
Linus
next prev parent reply other threads:[~2023-03-14 19:08 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-03-08 16:52 [PATCH v17 00/14] splice, block: Use page pinning and kill ITER_PIPE David Howells
2023-03-08 16:52 ` [PATCH v17 01/14] splice: Clean up direct_splice_read() a bit David Howells
2023-03-14 17:30 ` Christoph Hellwig
2023-03-08 16:52 ` [PATCH v17 02/14] splice: Make do_splice_to() generic and export it David Howells
2023-03-14 17:31 ` Christoph Hellwig
2023-03-14 21:15 ` David Howells
2023-03-15 16:34 ` [RFC PATCH] splice: Convert longs and some ints into ssize_t David Howells
2023-03-08 16:52 ` [PATCH v17 03/14] shmem: Implement splice-read David Howells
2023-03-08 22:39 ` Linus Torvalds
2023-03-14 16:42 ` Matthew Wilcox
2023-03-14 18:02 ` Linus Torvalds
2023-03-14 20:08 ` Matthew Wilcox
2023-03-14 18:26 ` David Howells
2023-03-14 19:07 ` Linus Torvalds [this message]
2023-03-14 19:09 ` Linus Torvalds
2023-03-14 21:50 ` David Howells
2023-03-08 23:42 ` David Howells
2023-03-08 16:52 ` [PATCH v17 04/14] overlayfs: " David Howells
2023-03-08 16:52 ` [PATCH v17 05/14] coda: " David Howells
2023-03-13 13:28 ` Jan Harkes
2023-03-08 16:52 ` [PATCH v17 06/14] tty, proc, kernfs, random: Use direct_splice_read() David Howells
2023-03-08 16:52 ` [PATCH v17 07/14] splice: Do splice read from a file without using ITER_PIPE David Howells
2023-03-14 17:32 ` Christoph Hellwig
2023-03-14 21:52 ` David Howells
2023-03-08 16:52 ` [PATCH v17 08/14] iov_iter: Kill ITER_PIPE David Howells
2023-03-08 16:52 ` [PATCH v17 09/14] iomap: Don't get an reference on ZERO_PAGE for direct I/O block zeroing David Howells
2023-03-08 21:08 ` Dave Chinner
2023-03-14 17:33 ` Christoph Hellwig
2023-03-08 16:52 ` [PATCH v17 10/14] block: Fix bio_flagged() so that gcc can better optimise it David Howells
2023-03-08 16:52 ` [PATCH v17 11/14] block: Replace BIO_NO_PAGE_REF with BIO_PAGE_REFFED with inverted logic David Howells
2023-03-08 16:52 ` [PATCH v17 12/14] block: Add BIO_PAGE_PINNED and associated infrastructure David Howells
2023-03-08 16:52 ` [PATCH v17 13/14] block: Convert bio_iov_iter_get_pages to use iov_iter_extract_pages David Howells
2023-03-08 16:52 ` [PATCH v17 14/14] block: convert bio_map_user_iov " David Howells
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