From: Balbir Singh <bsingharora@gmail.com>
To: john.hubbard@gmail.com
Cc: Matthew Wilcox <willy@infradead.org>,
Michal Hocko <mhocko@kernel.org>,
Christopher Lameter <cl@linux.com>,
Jason Gunthorpe <jgg@ziepe.ca>,
Dan Williams <dan.j.williams@intel.com>, Jan Kara <jack@suse.cz>,
linux-mm@kvack.org, Andrew Morton <akpm@linux-foundation.org>,
LKML <linux-kernel@vger.kernel.org>,
linux-rdma <linux-rdma@vger.kernel.org>,
linux-fsdevel@vger.kernel.org, John Hubbard <jhubbard@nvidia.com>
Subject: Re: [PATCH 1/6] mm: get_user_pages: consolidate error handling
Date: Fri, 12 Oct 2018 17:30:34 +1100 [thread overview]
Message-ID: <20181012063034.GI8537@350D> (raw)
In-Reply-To: <20181012060014.10242-2-jhubbard@nvidia.com>
On Thu, Oct 11, 2018 at 11:00:09PM -0700, john.hubbard@gmail.com wrote:
> From: John Hubbard <jhubbard@nvidia.com>
>
> An upcoming patch requires a way to operate on each page that
> any of the get_user_pages_*() variants returns.
>
> In preparation for that, consolidate the error handling for
> __get_user_pages(). This provides a single location (the "out:" label)
> for operating on the collected set of pages that are about to be returned.
>
> As long every use of the "ret" variable is being edited, rename
> "ret" --> "err", so that its name matches its true role.
> This also gets rid of two shadowed variable declarations, as a
> tiny beneficial a side effect.
>
> Reviewed-by: Jan Kara <jack@suse.cz>
> Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
> Signed-off-by: John Hubbard <jhubbard@nvidia.com>
> ---
Looks good, might not be needed but
Reviewed-by: Balbir Singh <bsingharora@gmail.com>
next prev parent reply other threads:[~2018-10-12 6:30 UTC|newest]
Thread overview: 46+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-10-12 6:00 [PATCH 0/6] RFC: gup+dma: tracking dma-pinned pages john.hubbard
2018-10-12 6:00 ` [PATCH 1/6] mm: get_user_pages: consolidate error handling john.hubbard
2018-10-12 6:30 ` Balbir Singh [this message]
2018-10-12 22:45 ` John Hubbard
2018-10-12 22:45 ` John Hubbard
2018-10-12 6:00 ` [PATCH 2/6] mm: introduce put_user_page*(), placeholder versions john.hubbard
2018-10-12 7:35 ` Balbir Singh
2018-10-12 22:31 ` John Hubbard
2018-10-12 22:31 ` John Hubbard
2018-10-12 6:00 ` [PATCH 3/6] infiniband/mm: convert put_page() to put_user_page*() john.hubbard
2018-10-12 6:00 ` [PATCH 4/6] mm: introduce page->dma_pinned_flags, _count john.hubbard
2018-10-12 10:56 ` Balbir Singh
2018-10-13 0:15 ` John Hubbard
2018-10-13 0:15 ` John Hubbard
2018-10-24 11:00 ` Balbir Singh
2018-11-02 23:27 ` John Hubbard
2018-11-02 23:27 ` John Hubbard
2018-10-13 3:55 ` Dave Chinner
2018-10-13 7:34 ` John Hubbard
2018-10-13 7:34 ` John Hubbard
2018-10-13 16:47 ` Christoph Hellwig
2018-10-13 21:19 ` John Hubbard
2018-10-13 21:19 ` John Hubbard
2018-11-05 7:10 ` John Hubbard
2018-11-05 7:10 ` John Hubbard
2018-11-05 9:54 ` Jan Kara
2018-11-06 0:26 ` John Hubbard
2018-11-06 0:26 ` John Hubbard
2018-11-06 2:47 ` Dave Chinner
2018-11-06 11:00 ` Jan Kara
2018-11-06 20:41 ` Dave Chinner
2018-11-07 6:36 ` John Hubbard
2018-11-07 6:36 ` John Hubbard
2018-10-13 23:01 ` Dave Chinner
2018-10-16 8:51 ` Jan Kara
2018-10-17 1:48 ` John Hubbard
2018-10-17 1:48 ` John Hubbard
2018-10-17 11:09 ` Michal Hocko
2018-10-18 0:03 ` John Hubbard
2018-10-18 0:03 ` John Hubbard
2018-10-19 8:11 ` Michal Hocko
2018-10-12 6:00 ` [PATCH 5/6] mm: introduce zone_gup_lock, for dma-pinned pages john.hubbard
2018-10-12 6:00 ` [PATCH 6/6] mm: track gup pages with page->dma_pinned_* fields john.hubbard
2018-10-12 11:07 ` Balbir Singh
2018-10-13 0:33 ` John Hubbard
2018-10-13 0:33 ` John Hubbard
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