From: David Howells <dhowells@redhat.com>
To: David Laight <David.Laight@ACULAB.COM>
Cc: dhowells@redhat.com, Al Viro <viro@zeniv.linux.org.uk>,
Linus Torvalds <torvalds@linux-foundation.org>,
Jens Axboe <axboe@kernel.dk>, "Christoph Hellwig" <hch@lst.de>,
Christian Brauner <christian@brauner.io>,
"Matthew Wilcox" <willy@infradead.org>,
Brendan Higgins <brendanhiggins@google.com>,
David Gow <davidgow@google.com>,
"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>,
"netdev@vger.kernel.org" <netdev@vger.kernel.org>,
"linux-kselftest@vger.kernel.org"
<linux-kselftest@vger.kernel.org>,
"kunit-dev@googlegroups.com" <kunit-dev@googlegroups.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
Andrew Morton <akpm@linux-foundation.org>,
Christian Brauner <brauner@kernel.org>,
"David Hildenbrand" <david@redhat.com>,
John Hubbard <jhubbard@nvidia.com>
Subject: Re: [RFC PATCH 9/9] iov_iter: Add benchmarking kunit tests for UBUF/IOVEC
Date: Fri, 15 Sep 2023 13:36:06 +0100 [thread overview]
Message-ID: <3585404.1694781366@warthog.procyon.org.uk> (raw)
In-Reply-To: <72e93605b28742c2a496ce4890ecaa80@AcuMS.aculab.com>
David Laight <David.Laight@ACULAB.COM> wrote:
> I was thinking of import_iovec() - or whatever its current
> name is.
That doesn't actually access the buffer described by the iovec[].
> That really needs a single structure that contains the iov_iter
> and the cache[] (which the caller pretty much always allocates
> in the same place).
cache[]?
> Fiddling with that is ok until you find what io_uring does.
> Then it all gets entirely horrid.
That statement sounds like back-of-the-OLS-T-shirt material ;-)
David
next prev parent reply other threads:[~2023-09-15 12:38 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-09-14 22:15 [RFC PATCH 0/9] iov_iter: kunit: Cleanup, abstraction and more tests David Howells
2023-09-14 22:15 ` [RFC PATCH 1/9] iov_iter: Fix some checkpatch complaints in kunit tests David Howells
2023-09-14 22:15 ` [RFC PATCH 2/9] iov_iter: Consolidate some of the repeated code into helpers David Howells
2023-09-14 22:15 ` [RFC PATCH 3/9] iov_iter: Consolidate the test vector struct in the kunit tests David Howells
2023-09-14 22:15 ` [RFC PATCH 4/9] iov_iter: Consolidate bvec pattern checking David Howells
2023-09-14 22:15 ` [RFC PATCH 5/9] iov_iter: Create a function to prepare userspace VM for UBUF/IOVEC tests David Howells
2023-09-14 22:15 ` [RFC PATCH 6/9] iov_iter: Add copy kunit tests for ITER_UBUF and ITER_IOVEC David Howells
2023-09-14 22:15 ` [RFC PATCH 7/9] iov_iter: Add extract " David Howells
2023-09-14 22:15 ` [RFC PATCH 8/9] iov_iter: Add benchmarking kunit tests David Howells
2023-09-14 22:15 ` [RFC PATCH 9/9] iov_iter: Add benchmarking kunit tests for UBUF/IOVEC David Howells
2023-09-15 7:09 ` David Laight
2023-09-15 10:10 ` David Howells
2023-09-15 10:51 ` David Laight
2023-09-15 11:23 ` David Howells
2023-09-15 12:10 ` David Laight
2023-09-15 12:36 ` David Howells [this message]
2023-09-15 13:08 ` David Laight
2023-09-15 13:24 ` David Howells
2023-09-15 12:19 ` David Howells
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