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From: Matthew Wilcox <willy@infradead.org>
To: Christoph Hellwig <hch@lst.de>
Cc: Andrew Morton <akpm@linux-foundation.org>,
	Kent Overstreet <kent.overstreet@gmail.com>,
	linux-mm@kvack.org, linux-fsdevel@vger.kernel.org
Subject: Re: clean up the generic pagecache read helpers
Date: Sat, 31 Oct 2020 15:42:27 +0000	[thread overview]
Message-ID: <20201031154227.GQ27442@casper.infradead.org> (raw)
In-Reply-To: <20201031090004.452516-1-hch@lst.de>

On Sat, Oct 31, 2020 at 09:59:51AM +0100, Christoph Hellwig wrote:
> Hi Andrew,
> 
> this series cleans up refactors our generic read from page cache helpers.
> The recent usage of the gang lookups helped a fair amount compared to
> the previous state, but left some of the old mess and actually introduced
> some new rather odd calling conventions as well.
> 
> Matthew: I think this should actually help with your THP work even if it
> means another rebase.  I was a bit surprised how quickly the gang lookups
> went in as well.

I think this is 90% the same direction I'm heading in.  I'll chime in
with a few suggestions on the individual patches.

      parent reply	other threads:[~2020-10-31 15:42 UTC|newest]

Thread overview: 30+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-10-31  8:59 clean up the generic pagecache read helpers Christoph Hellwig
2020-10-31  8:59 ` [PATCH 01/13] mm: simplify generic_file_buffered_read_readpage Christoph Hellwig
2020-10-31  8:59 ` [PATCH 02/13] mm: simplify generic_file_buffered_read_pagenotuptodate Christoph Hellwig
2020-10-31  8:59 ` [PATCH 03/13] mm: lift the nowait checks into generic_file_buffered_read_pagenotuptodate Christoph Hellwig
2020-10-31  8:59 ` [PATCH 04/13] mm: handle readahead in generic_file_buffered_read_pagenotuptodate Christoph Hellwig
2020-10-31 17:06   ` Matthew Wilcox
2020-11-01 10:31     ` Christoph Hellwig
2020-11-01 10:49       ` Matthew Wilcox
2020-11-01 10:51         ` Christoph Hellwig
2020-11-01 10:51           ` Christoph Hellwig
2020-11-01 11:04             ` Matthew Wilcox
2020-11-01 11:52               ` Christoph Hellwig
2020-11-01 14:55                 ` Matthew Wilcox
2020-11-02  8:18                   ` Christoph Hellwig
2020-10-31  8:59 ` [PATCH 05/13] mm: simplify generic_file_buffered_read_no_cached_page Christoph Hellwig
2020-10-31 16:20   ` Matthew Wilcox
2020-10-31 16:28   ` Matthew Wilcox
2020-11-01 10:29     ` Christoph Hellwig
2020-10-31  8:59 ` [PATCH 06/13] mm: factor out a filemap_find_get_pages helper Christoph Hellwig
2020-10-31  8:59 ` [PATCH 07/13] mm: refactor generic_file_buffered_read_get_pages Christoph Hellwig
2020-11-01 11:18   ` Matthew Wilcox
2020-10-31  8:59 ` [PATCH 08/13] mm: move putting the page on error out of filemap_readpage Christoph Hellwig
2020-10-31  9:00 ` [PATCH 09/13] mm: move putting the page on error out of filemap_make_page_uptodate Christoph Hellwig
2020-10-31  9:00 ` [PATCH 10/13] mm: open code readahead in filemap_new_page Christoph Hellwig
2020-11-01 11:20   ` Matthew Wilcox
2020-10-31  9:00 ` [PATCH 11/13] mm: streamline the partially uptodate checks in filemap_make_page_uptodate Christoph Hellwig
2020-11-01 11:23   ` Matthew Wilcox
2020-10-31  9:00 ` [PATCH 12/13] mm: rename generic_file_buffered_read to filemap_read Christoph Hellwig
2020-10-31  9:00 ` [PATCH 13/13] mm: simplify generic_file_read_iter Christoph Hellwig
2020-10-31 15:42 ` Matthew Wilcox [this message]

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