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From: David Howells <dhowells@redhat.com>
To: Matthew Wilcox <willy@infradead.org>
Cc: dhowells@redhat.com, viro@zeniv.linux.org.uk,
	linux-fsdevel@vger.kernel.org, linux-afs@lists.infradead.org,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH 00/10] iov_iter: Add new iters and use with AFS
Date: Thu, 13 Sep 2018 18:05:46 +0100	[thread overview]
Message-ID: <28094.1536858346@warthog.procyon.org.uk> (raw)
In-Reply-To: <20180913164351.GC11574@bombadil.infradead.org>

Matthew Wilcox <willy@infradead.org> wrote:

> It might serve to replace iov_iter_zero().

I don't think it can work like that.  iov_iter_zero() writes zeros into an
iterator someone else set up.

To use ITER_ZERO, you'd be setting up the iterator and passing it to someone
else to comsume.  I think these are at opposite ends of the concept.

David

  parent reply	other threads:[~2018-09-13 17:35 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-09-13 15:51 [PATCH 00/10] iov_iter: Add new iters and use with AFS David Howells
2018-09-13 15:51 ` [PATCH 01/10] iov_iter: Separate type from direction and use accessor functions David Howells
2018-09-13 15:51 ` [PATCH 02/10] iov_iter: Renumber the ITER_* constants in uio.h David Howells
2018-09-13 15:52 ` [PATCH 03/10] iov_iter: Make count and iov_offset loff_t not size_t David Howells
2018-09-13 15:52 ` [PATCH 04/10] iov_iter: Add mapping and discard iterator types David Howells
2018-09-14  4:18   ` Al Viro
2018-09-14 12:57     ` Trond Myklebust
2018-09-17 21:32     ` David Howells
2018-09-17 20:58   ` David Howells
2018-09-13 15:52 ` [PATCH 05/10] afs: Better tracing of protocol errors David Howells
2018-09-13 15:52 ` [PATCH 06/10] afs: Set up the iov_iter before calling afs_extract_data() David Howells
2018-09-13 15:52 ` [PATCH 07/10] afs: Use ITER_MAPPING for writing David Howells
2018-09-13 15:52 ` [PATCH 08/10] afs: Add O_DIRECT read support David Howells
2018-09-13 15:52 ` [PATCH 09/10] afs: Add a couple of tracepoints to log I/O errors David Howells
2018-09-13 15:52 ` [PATCH 10/10] afs: Don't invoke the server to read data beyond EOF David Howells
2018-09-13 16:10 ` [PATCH 00/10] iov_iter: Add new iters and use with AFS Matthew Wilcox
2018-09-13 16:18 ` David Howells
2018-09-13 16:43   ` Matthew Wilcox
2018-09-13 17:05   ` David Howells [this message]
2018-09-13 17:58 ` Al Viro
  -- strict thread matches above, loose matches on Subject: below --
2018-08-06 13:16 David Howells

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