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From: William Kucharski <william.kucharski@oracle.com>
To: "Matthew Wilcox (Oracle)" <willy@infradead.org>
Cc: linux-mm <linux-mm@kvack.org>,
	Andrew Morton <akpm@linux-foundation.org>,
	Hugh Dickins <hughd@google.com>,
	Johannes Weiner <hannes@cmpxchg.org>, Jan Kara <jack@suse.cz>,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH 0/7] Overhaul find_get_entries and pagevec_lookup_entries
Date: Fri, 21 Aug 2020 20:34:38 -0600	[thread overview]
Message-ID: <F3875B5A-52FF-41B8-8F57-2F25659949D6@oracle.com> (raw)
In-Reply-To: <20200819150555.31669-1-willy@infradead.org>



> On Aug 19, 2020, at 9:05 AM, Matthew Wilcox (Oracle) <willy@infradead.org> wrote:
> 
> This started out as part of the THP patchset, but it's turned into a
> nice simplification in its own right.  Essentially we end up unifying
> find_get_entries() and pagevec_lookup_entries() into one function that's
> better than either, and we get rid of a lot of code in the callers as
> a result.
> 
> I'm running this through xfstests right now, but something similar to
> this has already passed xfstests as part of the THP patchset.
> 
> I've done my best to avoid off-by-one errors for 'end', but I wouldn't be
> surprised if I made a mistake.  We're not consistent with whether 'end'
> is inclusive or exclusive and I didn't want to make extensive changes
> to ensure they were consistent.
> 
> Matthew Wilcox (Oracle) (7):
>  mm: Use pagevec_lookup in shmem_unlock_mapping
>  mm: Rewrite shmem_seek_hole_data
>  mm: Add an 'end' parameter to find_get_entries
>  mm: Add an 'end' parameter to pagevec_lookup_entries
>  mm: Remove nr_entries parameter from pagevec_lookup_entries
>  mm: Pass pvec directly to find_get_entries
>  mm: Remove pagevec_lookup_entries
> 
> include/linux/pagemap.h |  3 +-
> include/linux/pagevec.h |  4 --
> mm/filemap.c            | 19 +++++----
> mm/shmem.c              | 85 ++++++++++++++---------------------------
> mm/swap.c               | 38 +-----------------
> mm/truncate.c           | 33 +++-------------
> 6 files changed, 45 insertions(+), 137 deletions(-)

Very nice cleanups and the code makes more sense, thanks.

Reviewed-by: William Kucharski <william.kucharski@oracle.com>

      parent reply	other threads:[~2020-08-22  2:36 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-08-19 15:05 [PATCH 0/7] Overhaul find_get_entries and pagevec_lookup_entries Matthew Wilcox (Oracle)
2020-08-19 15:05 ` [PATCH 1/7] mm: Use pagevec_lookup in shmem_unlock_mapping Matthew Wilcox (Oracle)
2020-08-21 15:53   ` Jan Kara
2020-08-19 15:05 ` [PATCH 2/7] mm: Rewrite shmem_seek_hole_data Matthew Wilcox (Oracle)
2020-08-20 16:45   ` Mike Rapoport
2020-08-20 19:04     ` Matthew Wilcox
2020-08-19 15:05 ` [PATCH 3/7] mm: Add an 'end' parameter to find_get_entries Matthew Wilcox (Oracle)
2020-08-20 16:47   ` Mike Rapoport
2020-08-21 16:07   ` Jan Kara
2020-08-21 16:33     ` Matthew Wilcox
2020-08-21 18:06       ` Jan Kara
2020-08-19 15:05 ` [PATCH 4/7] mm: Add an 'end' parameter to pagevec_lookup_entries Matthew Wilcox (Oracle)
2020-08-24 16:09   ` Jan Kara
2020-08-19 15:05 ` [PATCH 5/7] mm: Remove nr_entries parameter from pagevec_lookup_entries Matthew Wilcox (Oracle)
2020-08-24 16:10   ` Jan Kara
2020-08-19 15:05 ` [PATCH 6/7] mm: Pass pvec directly to find_get_entries Matthew Wilcox (Oracle)
2020-08-24 16:16   ` Jan Kara
2020-08-24 17:36     ` Matthew Wilcox
2020-08-25 12:33       ` Jan Kara
2020-08-25 13:28         ` Matthew Wilcox
2020-08-25 15:24           ` Jan Kara
2020-08-25 16:23           ` Johannes Weiner
2020-08-19 15:05 ` [PATCH 7/7] mm: Remove pagevec_lookup_entries Matthew Wilcox (Oracle)
2020-08-22  2:34 ` William Kucharski [this message]

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