From: Matthew Wilcox <willy@infradead.org>
To: David Laight <David.Laight@aculab.com>
Cc: 'David Howells' <dhowells@redhat.com>,
Linus Torvalds <torvalds@linux-foundation.org>,
Al Viro <viro@zeniv.linux.org.uk>, Jens Axboe <axboe@kernel.dk>,
Christoph Hellwig <hch@list.de>,
Christian Brauner <christian@brauner.io>,
Jeff Layton <jlayton@kernel.org>,
"linux-fsdevel@vger.kernel.org" <linux-fsdevel@vger.kernel.org>,
"linux-block@vger.kernel.org" <linux-block@vger.kernel.org>,
"linux-mm@kvack.org" <linux-mm@kvack.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH v3 2/2] iov_iter: Don't deal with iter->copy_mc in memcpy_from_iter_mc()
Date: Fri, 18 Aug 2023 13:26:59 +0100 [thread overview]
Message-ID: <ZN9jkweGABK5LSNU@casper.infradead.org> (raw)
In-Reply-To: <b9c32d9669174dbbbb8e944146814a98@AcuMS.aculab.com>
On Fri, Aug 18, 2023 at 12:16:23PM +0000, David Laight wrote:
> > > + ITER_IOVEC = 1,
> > > + ITER_UBUF = 2,
> > > + ITER_KVEC = 4,
> > > + ITER_BVEC = 8,
> > > + ITER_XARRAY = 16,
> > > + ITER_DISCARD = 32,
>
> IIRC Linus had type:6 - that doesn't leave any headroom
> for additional types (even though they shouldn't proliferate).
I have proposed an ITER_KBUF in the past (it is to KVEC as UBUF is
to IOVEC). I didn't care enough to keep pushing it, but it's clearly
a common idiom.
next prev parent reply other threads:[~2023-08-18 12:28 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-08-16 12:07 [PATCH v3 0/2] iov_iter: Convert the iterator macros into inline funcs David Howells
2023-08-16 12:07 ` [PATCH v3 1/2] iov_iter: Convert iterate*() to " David Howells
2023-08-16 12:07 ` [PATCH v3 2/2] iov_iter: Don't deal with iter->copy_mc in memcpy_from_iter_mc() David Howells
2023-08-16 12:28 ` David Laight
2023-08-16 13:00 ` David Howells
2023-08-16 14:19 ` David Laight
2023-08-16 18:50 ` Linus Torvalds
2023-08-16 20:35 ` David Howells
2023-08-17 4:18 ` Linus Torvalds
2023-08-17 8:41 ` David Laight
2023-08-17 14:38 ` Linus Torvalds
2023-08-17 15:16 ` David Laight
2023-08-17 15:31 ` Linus Torvalds
2023-08-17 16:06 ` David Laight
2023-08-18 15:19 ` David Howells
2023-08-18 15:42 ` David Laight
2023-08-18 16:48 ` David Howells
2023-08-18 21:39 ` David Laight
2023-08-18 11:42 ` David Howells
2023-08-18 12:16 ` David Laight
2023-08-18 12:26 ` Matthew Wilcox [this message]
2023-08-18 12:41 ` David Laight
2023-08-18 13:33 ` David Howells
2023-08-18 11:39 ` David Howells
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