From: David Howells <dhowells@redhat.com>
To: Christoph Hellwig <hch@infradead.org>,
Jens Axboe <axboe@kernel.dk>,
smfrench@gmail.com
Cc: dhowells@redhat.com, Matthew Wilcox <willy@infradead.org>,
Al Viro <viro@zeniv.linux.org.uk>, 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,
syzbot+a440341a59e3b7142895@syzkaller.appspotmail.com,
Christoph Hellwig <hch@lst.de>,
John Hubbard <jhubbard@nvidia.com>
Subject: Re: [PATCH v14 01/12] splice: Fix O_DIRECT file read splice to avoid reversion of ITER_PIPE
Date: Wed, 15 Feb 2023 15:56:09 +0000 [thread overview]
Message-ID: <3370610.1676476569@warthog.procyon.org.uk> (raw)
In-Reply-To: <Y+zrNiDsC0Mt7JAc@infradead.org>
Christoph Hellwig <hch@infradead.org> wrote:
> On Wed, Feb 15, 2023 at 01:17:56PM +0000, David Howells wrote:
> > Probably not, but I don't want to fiddle with that right now. I can send a
> > follow up patch for it.
>
> Honestly, I think this rush for 6.3 inclusion is a really bad idea.
>
> This series fundamentally changes how splice reads work, and has only
> been out for about a week. It hasn't even been Cc'ed to Al
Sorry, what?! Al has been To'd or cc'd on every patch.
> and Linus
I don't know that it's necessary to cc Linus on everything. Jens is the
splice maintainer, I thought.
> which generally have a good knowledge of the splice code and an opinion
> on it.
>
> I think it is a good change, but I'd feel much more comfortable with
> it for the next merge window rather than rushing it.
The lack of iov_iter_extract_pages() is blocking other things I want to work
on - and will push those out another 3 months further beyond this.
I'm fine with dropping the block layer changes and most of the splice changes,
but I do want to try to get patches 1-3, 10 and 11:
mm: Pass info, not iter, into filemap_get_pages()
splice: Add a func to do a splice from a buffered file without ITER_PIPE
splice: Add a func to do a splice from an O_DIRECT file without ITER_PIPE
iov_iter: Add a function to extract a page list from an iterator
iov_iter: Define flags to qualify page extraction.
upstream through the cifs tree if you, Jens and Steve French have no
objection, with my cifs iteratorisation patches on top. It shouldn't affect
anything other than cifs in this merge window, barring the change to the flags
to iov_iter_get_pages*().
David
next prev parent reply other threads:[~2023-02-15 15:56 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-02-09 10:29 [PATCH v13 00/12] iov_iter: Improve page extraction (pin or just list) David Howells
2023-02-09 10:29 ` [PATCH v13 01/12] splice: Fix O_DIRECT file read splice to avoid reversion of ITER_PIPE David Howells
2023-02-09 14:53 ` Matthew Wilcox
2023-02-09 15:06 ` David Howells
2023-02-09 16:15 ` [PATCH v14 " David Howells
2023-02-13 8:22 ` Christoph Hellwig
2023-02-15 13:17 ` David Howells
2023-02-15 14:24 ` Christoph Hellwig
2023-02-15 15:56 ` David Howells [this message]
2023-02-15 13:42 ` [PATCH] splice: Clean up direct_splice_read() a bit David Howells
2023-02-15 13:47 ` David Howells
2023-02-09 10:29 ` [PATCH v13 02/12] mm: Pass info, not iter, into filemap_get_pages() and unstatic it David Howells
2023-02-13 8:22 ` Christoph Hellwig
2023-02-09 10:29 ` [PATCH v13 03/12] splice: Do splice read from a buffered file without using ITER_PIPE David Howells
2023-02-13 8:28 ` Christoph Hellwig
2023-02-13 10:11 ` David Howells
2023-02-13 10:18 ` Christoph Hellwig
2023-02-13 11:15 ` David Howells
2023-02-13 14:44 ` Christoph Hellwig
2023-02-13 18:06 ` Guenter Roeck
2023-02-13 22:43 ` David Howells
2023-02-13 22:51 ` Guenter Roeck
2023-02-13 23:12 ` David Howells
2023-02-13 23:25 ` Guenter Roeck
2023-02-09 10:29 ` [PATCH v13 04/12] iov_iter: Kill ITER_PIPE David Howells
2023-02-13 8:28 ` Christoph Hellwig
2023-02-09 10:29 ` [PATCH v13 05/12] iov_iter: Define flags to qualify page extraction David Howells
2023-02-09 10:29 ` [PATCH v13 06/12] iov_iter: Add a function to extract a page list from an iterator David Howells
2023-02-09 10:29 ` [PATCH v13 07/12] iomap: Don't get an reference on ZERO_PAGE for direct I/O block zeroing David Howells
2023-02-09 10:29 ` [PATCH v13 08/12] block: Fix bio_flagged() so that gcc can better optimise it David Howells
2023-02-09 10:29 ` [PATCH v13 09/12] block: Replace BIO_NO_PAGE_REF with BIO_PAGE_REFFED with inverted logic David Howells
2023-02-09 10:29 ` [PATCH v13 10/12] block: Add BIO_PAGE_PINNED and associated infrastructure David Howells
2023-02-09 10:29 ` [PATCH v13 11/12] block: Convert bio_iov_iter_get_pages to use iov_iter_extract_pages David Howells
2023-02-09 10:29 ` [PATCH v13 12/12] block: convert bio_map_user_iov " David Howells
2023-02-10 22:31 ` [PATCH v13 00/12] iov_iter: Improve page extraction (pin or just list) Jens Axboe
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