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From: Christoph Hellwig <hch@infradead.org>
To: John Hubbard <jhubbard@nvidia.com>
Cc: Andrew Morton <akpm@linux-foundation.org>,
	Alexander Viro <viro@zeniv.linux.org.uk>,
	Christoph Hellwig <hch@infradead.org>,
	Ilya Dryomov <idryomov@gmail.com>, Jens Axboe <axboe@kernel.dk>,
	linux-xfs@vger.kernel.org, linux-fsdevel@vger.kernel.org,
	linux-block@vger.kernel.org, linux-mm@kvack.org,
	LKML <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH v2 3/3] bio: convert get_user_pages_fast() --> pin_user_pages_fast()
Date: Sat, 29 Aug 2020 16:02:23 +0100	[thread overview]
Message-ID: <20200829150223.GC12470@infradead.org> (raw)
In-Reply-To: <20200829080853.20337-4-jhubbard@nvidia.com>

> -	size = iov_iter_get_pages(iter, pages, LONG_MAX, nr_pages, &offset);
> +	size = iov_iter_pin_user_pages(iter, pages, LONG_MAX, nr_pages, &offset);

This is really a comment to the previous patch, but I only spotted it
here:  I think the right name is iov_iter_pin_pages, as bvec, kvec and
pipe aren't usually user pages.  Same as iov_iter_get_pages vs
get_user_pages.  Same for the _alloc variant.

> + * here on.  It will run one unpin_user_page() against each page
> + * and will run one bio_put() against the BIO.

Nit: the ant and the will still fit on the previous line.

  reply	other threads:[~2020-08-29 15:02 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-08-29  8:08 [PATCH v2 0/3] bio: Direct IO: convert to pin_user_pages_fast() John Hubbard
2020-08-29  8:08 ` [PATCH v2 1/3] mm/gup: introduce pin_user_page() John Hubbard
2020-08-29 14:54   ` Christoph Hellwig
2020-08-29 21:57     ` John Hubbard
2020-08-29  8:08 ` [PATCH v2 2/3] iov_iter: introduce iov_iter_pin_user_pages*() routines John Hubbard
2020-08-29 14:58   ` Christoph Hellwig
2020-08-29 21:58     ` John Hubbard
2020-08-30 20:17   ` Al Viro
2020-08-30 20:44     ` John Hubbard
2020-08-29  8:08 ` [PATCH v2 3/3] bio: convert get_user_pages_fast() --> pin_user_pages_fast() John Hubbard
2020-08-29 15:02   ` Christoph Hellwig [this message]
2020-08-29 22:08     ` John Hubbard

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