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From: Matthew Wilcox <willy@infradead.org>
To: Mike Rapoport <rppt@kernel.org>
Cc: linux-mm@kvack.org, linux-fsdevel@vger.kernel.org,
	Andrew Morton <akpm@linux-foundation.org>,
	Hugh Dickins <hughd@google.com>,
	Johannes Weiner <hannes@cmpxchg.org>,
	Yang Shi <yang.shi@linux.alibaba.com>,
	Dave Chinner <dchinner@redhat.com>,
	linux-kernel@vger.kernel.org, Jan Kara <jack@suse.cz>,
	William Kucharski <william.kucharski@oracle.com>
Subject: Re: [PATCH v3 01/12] mm: Make pagecache tagged lookups return only head pages
Date: Thu, 12 Nov 2020 17:41:50 +0000	[thread overview]
Message-ID: <20201112174150.GC17076@casper.infradead.org> (raw)
In-Reply-To: <20201028075056.GB1362354@kernel.org>

On Wed, Oct 28, 2020 at 09:50:56AM +0200, Mike Rapoport wrote:
> > @@ -2074,8 +2074,8 @@ EXPORT_SYMBOL(find_get_pages_contig);
> >   * @nr_pages:	the maximum number of pages
> >   * @pages:	where the resulting pages are placed
> >   *
> > - * Like find_get_pages, except we only return pages which are tagged with
> > - * @tag.   We update @index to index the next page for the traversal.
> > + * Like find_get_pages(), except we only return head pages which are tagged
> > + * with @tag.   We update @index to index the next page for the traversal.
> 
> Nit:                                           ^ next head page

I don't love the sentence anyway.  How about:

 * Like find_get_pages(), except we only return head pages which are tagged
 * with @tag.  @index is updated to the index immediately after the last
 * page we return, ready for the next iteration.


  reply	other threads:[~2020-11-12 17:42 UTC|newest]

Thread overview: 25+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-10-26  4:13 [PATCH v3 00/12] Overhaul multi-page lookups for THP Matthew Wilcox (Oracle)
2020-10-26  4:13 ` [PATCH v3 01/12] mm: Make pagecache tagged lookups return only head pages Matthew Wilcox (Oracle)
2020-10-28  7:50   ` Mike Rapoport
2020-11-12 17:41     ` Matthew Wilcox [this message]
2020-11-12 19:11       ` Mike Rapoport
2020-10-26  4:13 ` [PATCH v3 02/12] mm/shmem: Use pagevec_lookup in shmem_unlock_mapping Matthew Wilcox (Oracle)
2020-10-26  4:13 ` [PATCH v3 03/12] mm/filemap: Add helper for finding pages Matthew Wilcox (Oracle)
2020-10-27 18:56   ` Christoph Hellwig
2020-11-12 14:25     ` Matthew Wilcox
2020-10-26  4:14 ` [PATCH v3 04/12] mm/filemap: Add mapping_seek_hole_data Matthew Wilcox (Oracle)
2020-10-26 10:48   ` Jan Kara
2020-10-26 12:17     ` Matthew Wilcox
2020-10-26 14:49       ` Jan Kara
2020-10-27 18:58   ` Christoph Hellwig
2020-10-27 20:04     ` Matthew Wilcox
2020-10-28  6:40       ` Christoph Hellwig
2020-10-26  4:14 ` [PATCH v3 05/12] mm: Add and use find_lock_entries Matthew Wilcox (Oracle)
2020-10-26  4:14 ` [PATCH v3 06/12] mm: Add an 'end' parameter to find_get_entries Matthew Wilcox (Oracle)
2020-10-26  4:14 ` [PATCH v3 07/12] mm: Add an 'end' parameter to pagevec_lookup_entries Matthew Wilcox (Oracle)
2020-10-26  4:14 ` [PATCH v3 08/12] mm: Remove nr_entries parameter from pagevec_lookup_entries Matthew Wilcox (Oracle)
2020-10-26  4:14 ` [PATCH v3 09/12] mm: Pass pvec directly to find_get_entries Matthew Wilcox (Oracle)
2020-10-26  4:14 ` [PATCH v3 10/12] mm: Remove pagevec_lookup_entries Matthew Wilcox (Oracle)
2020-10-26  4:14 ` [PATCH v3 11/12] mm/truncate,shmem: Handle truncates that split THPs Matthew Wilcox (Oracle)
2020-10-26 11:05   ` Jan Kara
2020-10-26  4:14 ` [PATCH v3 12/12] mm/filemap: Return only head pages from find_get_entries Matthew Wilcox (Oracle)

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