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From: Johannes Thumshirn <Johannes.Thumshirn@wdc.com>
To: Matthew Wilcox <willy@infradead.org>,
	"linux-fsdevel@vger.kernel.org" <linux-fsdevel@vger.kernel.org>
Cc: "linux-mm@kvack.org" <linux-mm@kvack.org>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	"linux-btrfs@vger.kernel.org" <linux-btrfs@vger.kernel.org>,
	"linux-erofs@lists.ozlabs.org" <linux-erofs@lists.ozlabs.org>,
	"linux-ext4@vger.kernel.org" <linux-ext4@vger.kernel.org>,
	"linux-f2fs-devel@lists.sourceforge.net" 
	<linux-f2fs-devel@lists.sourceforge.net>,
	"cluster-devel@redhat.com" <cluster-devel@redhat.com>,
	"ocfs2-devel@oss.oracle.com" <ocfs2-devel@oss.oracle.com>,
	"linux-xfs@vger.kernel.org" <linux-xfs@vger.kernel.org>
Subject: Re: [PATCH v5 01/13] mm: Fix the return type of __do_page_cache_readahead
Date: Tue, 11 Feb 2020 08:19:14 +0000	[thread overview]
Message-ID: <SN4PR0401MB3598602411B75B46F5267B829B180@SN4PR0401MB3598.namprd04.prod.outlook.com> (raw)
In-Reply-To: 20200211010348.6872-2-willy@infradead.org

On 11/02/2020 02:05, Matthew Wilcox wrote:
> even though I'm pretty sure we're not going to readahead more than 2^32
> pages ever.

And 640K is more memory than anyone will ever need on a computer *scnr*


WARNING: multiple messages have this Message-ID (diff)
From: Johannes Thumshirn <Johannes.Thumshirn@wdc.com>
To: Matthew Wilcox <willy@infradead.org>,
	"linux-fsdevel@vger.kernel.org" <linux-fsdevel@vger.kernel.org>
Cc: "linux-xfs@vger.kernel.org" <linux-xfs@vger.kernel.org>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	"linux-f2fs-devel@lists.sourceforge.net"
	<linux-f2fs-devel@lists.sourceforge.net>,
	"cluster-devel@redhat.com" <cluster-devel@redhat.com>,
	"linux-mm@kvack.org" <linux-mm@kvack.org>,
	"ocfs2-devel@oss.oracle.com" <ocfs2-devel@oss.oracle.com>,
	"linux-ext4@vger.kernel.org" <linux-ext4@vger.kernel.org>,
	"linux-erofs@lists.ozlabs.org" <linux-erofs@lists.ozlabs.org>,
	"linux-btrfs@vger.kernel.org" <linux-btrfs@vger.kernel.org>
Subject: Re: [f2fs-dev] [PATCH v5 01/13] mm: Fix the return type of __do_page_cache_readahead
Date: Tue, 11 Feb 2020 08:19:14 +0000	[thread overview]
Message-ID: <SN4PR0401MB3598602411B75B46F5267B829B180@SN4PR0401MB3598.namprd04.prod.outlook.com> (raw)
In-Reply-To: 20200211010348.6872-2-willy@infradead.org

On 11/02/2020 02:05, Matthew Wilcox wrote:
> even though I'm pretty sure we're not going to readahead more than 2^32
> pages ever.

And 640K is more memory than anyone will ever need on a computer *scnr*



_______________________________________________
Linux-f2fs-devel mailing list
Linux-f2fs-devel@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/linux-f2fs-devel

WARNING: multiple messages have this Message-ID (diff)
From: Johannes Thumshirn <Johannes.Thumshirn@wdc.com>
To: Matthew Wilcox <willy@infradead.org>,
	"linux-fsdevel@vger.kernel.org" <linux-fsdevel@vger.kernel.org>
Cc: "linux-xfs@vger.kernel.org" <linux-xfs@vger.kernel.org>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	"linux-f2fs-devel@lists.sourceforge.net"
	<linux-f2fs-devel@lists.sourceforge.net>,
	"cluster-devel@redhat.com" <cluster-devel@redhat.com>,
	"linux-mm@kvack.org" <linux-mm@kvack.org>,
	"ocfs2-devel@oss.oracle.com" <ocfs2-devel@oss.oracle.com>,
	"linux-ext4@vger.kernel.org" <linux-ext4@vger.kernel.org>,
	"linux-erofs@lists.ozlabs.org" <linux-erofs@lists.ozlabs.org>,
	"linux-btrfs@vger.kernel.org" <linux-btrfs@vger.kernel.org>
Subject: Re: [PATCH v5 01/13] mm: Fix the return type of __do_page_cache_readahead
Date: Tue, 11 Feb 2020 08:19:14 +0000	[thread overview]
Message-ID: <SN4PR0401MB3598602411B75B46F5267B829B180@SN4PR0401MB3598.namprd04.prod.outlook.com> (raw)
In-Reply-To: 20200211010348.6872-2-willy@infradead.org

On 11/02/2020 02:05, Matthew Wilcox wrote:
> even though I'm pretty sure we're not going to readahead more than 2^32
> pages ever.

And 640K is more memory than anyone will ever need on a computer *scnr*


WARNING: multiple messages have this Message-ID (diff)
From: Johannes Thumshirn <Johannes.Thumshirn@wdc.com>
To: cluster-devel.redhat.com
Subject: [Cluster-devel] [PATCH v5 01/13] mm: Fix the return type of __do_page_cache_readahead
Date: Tue, 11 Feb 2020 08:19:14 +0000	[thread overview]
Message-ID: <SN4PR0401MB3598602411B75B46F5267B829B180@SN4PR0401MB3598.namprd04.prod.outlook.com> (raw)
In-Reply-To: 20200211010348.6872-2-willy@infradead.org

On 11/02/2020 02:05, Matthew Wilcox wrote:
> even though I'm pretty sure we're not going to readahead more than 2^32
> pages ever.

And 640K is more memory than anyone will ever need on a computer *scnr*






  reply	other threads:[~2020-02-11  8:19 UTC|newest]

Thread overview: 140+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-02-11  1:03 [PATCH v5 00/13] Change readahead API Matthew Wilcox
2020-02-11  1:03 ` [Cluster-devel] " Matthew Wilcox
2020-02-11  1:03 ` Matthew Wilcox
2020-02-11  1:03 ` [f2fs-dev] " Matthew Wilcox
2020-02-11  1:03 ` [PATCH v5 01/13] mm: Fix the return type of __do_page_cache_readahead Matthew Wilcox
2020-02-11  1:03   ` [Cluster-devel] " Matthew Wilcox
2020-02-11  1:03   ` Matthew Wilcox
2020-02-11  1:03   ` [f2fs-dev] " Matthew Wilcox
2020-02-11  8:19   ` Johannes Thumshirn [this message]
2020-02-11  8:19     ` [Cluster-devel] " Johannes Thumshirn
2020-02-11  8:19     ` Johannes Thumshirn
2020-02-11  8:19     ` [f2fs-dev] " Johannes Thumshirn
2020-02-11  8:19     ` Johannes Thumshirn
2020-02-11 12:34     ` Matthew Wilcox
2020-02-11 12:34       ` [Cluster-devel] " Matthew Wilcox
2020-02-11 12:34       ` Matthew Wilcox
2020-02-11 12:34       ` [f2fs-dev] " Matthew Wilcox
2020-02-11 12:34       ` Matthew Wilcox
2020-02-12 18:13   ` Christoph Hellwig
2020-02-12 18:13     ` [Cluster-devel] " Christoph Hellwig
2020-02-12 18:13     ` Christoph Hellwig
2020-02-12 18:13     ` [f2fs-dev] " Christoph Hellwig
2020-02-12 18:13     ` [Ocfs2-devel] " Christoph Hellwig
2020-02-14  3:19   ` John Hubbard
2020-02-14  3:19     ` [Cluster-devel] " John Hubbard
2020-02-14  3:19     ` John Hubbard
2020-02-14  3:19     ` [f2fs-dev] " John Hubbard
2020-02-14  3:19     ` [Ocfs2-devel] " John Hubbard
2020-02-14  4:21     ` Matthew Wilcox
2020-02-14  4:21       ` [Cluster-devel] " Matthew Wilcox
2020-02-14  4:21       ` Matthew Wilcox
2020-02-14  4:21       ` [f2fs-dev] " Matthew Wilcox
2020-02-14  4:21       ` [Ocfs2-devel] " Matthew Wilcox
2020-02-14  4:33       ` John Hubbard
2020-02-14  4:33         ` [Cluster-devel] " John Hubbard
2020-02-14  4:33         ` John Hubbard
2020-02-14  4:33         ` [f2fs-dev] " John Hubbard
2020-02-14  4:33         ` [Ocfs2-devel] " John Hubbard
2020-02-14 19:50   ` Matthew Wilcox
2020-02-14 19:50     ` [Cluster-devel] " Matthew Wilcox
2020-02-14 19:50     ` Matthew Wilcox
2020-02-14 19:50     ` [f2fs-dev] " Matthew Wilcox
2020-02-14 19:50     ` [Ocfs2-devel] " Matthew Wilcox
2020-02-11  1:03 ` [PATCH v5 02/13] mm: Ignore return value of ->readpages Matthew Wilcox
2020-02-11  1:03   ` [Cluster-devel] " Matthew Wilcox
2020-02-11  1:03   ` Matthew Wilcox
2020-02-11  1:03   ` [f2fs-dev] " Matthew Wilcox
2020-02-12 18:13   ` Christoph Hellwig
2020-02-12 18:13     ` [Cluster-devel] " Christoph Hellwig
2020-02-12 18:13     ` Christoph Hellwig
2020-02-12 18:13     ` [f2fs-dev] " Christoph Hellwig
2020-02-12 18:13     ` [Ocfs2-devel] " Christoph Hellwig
2020-02-11  1:03 ` [PATCH v5 03/13] mm: Put readahead pages in cache earlier Matthew Wilcox
2020-02-11  1:03   ` [Cluster-devel] " Matthew Wilcox
2020-02-11  1:03   ` Matthew Wilcox
2020-02-11  1:03   ` [f2fs-dev] " Matthew Wilcox
2020-02-14  3:36   ` John Hubbard
2020-02-14  3:36     ` [Cluster-devel] " John Hubbard
2020-02-14  3:36     ` John Hubbard
2020-02-14  3:36     ` [f2fs-dev] " John Hubbard
2020-02-14  3:36     ` [Ocfs2-devel] " John Hubbard
2020-02-15  1:15     ` Matthew Wilcox
2020-02-15  1:15       ` [Cluster-devel] " Matthew Wilcox
2020-02-15  1:15       ` Matthew Wilcox
2020-02-15  1:15       ` [f2fs-dev] " Matthew Wilcox
2020-02-15  1:15       ` [Ocfs2-devel] " Matthew Wilcox
2020-02-11  1:03 ` [PATCH v5 04/13] mm: Add readahead address space operation Matthew Wilcox
2020-02-11  1:03   ` [Cluster-devel] " Matthew Wilcox
2020-02-11  1:03   ` Matthew Wilcox
2020-02-11  1:03   ` [f2fs-dev] " Matthew Wilcox
2020-02-11  4:52   ` Dave Chinner
2020-02-11  4:52     ` [Cluster-devel] " Dave Chinner
2020-02-11  4:52     ` Dave Chinner
2020-02-11  4:52     ` [f2fs-dev] " Dave Chinner
2020-02-11  4:52     ` [Ocfs2-devel] " Dave Chinner
2020-02-11 12:54     ` Matthew Wilcox
2020-02-11 12:54       ` [Cluster-devel] " Matthew Wilcox
2020-02-11 12:54       ` Matthew Wilcox
2020-02-11 12:54       ` [f2fs-dev] " Matthew Wilcox
2020-02-11 20:08       ` Dave Chinner
2020-02-11 20:08         ` [Cluster-devel] " Dave Chinner
2020-02-11 20:08         ` Dave Chinner
2020-02-11 20:08         ` [f2fs-dev] " Dave Chinner
2020-02-11 20:08         ` [Ocfs2-devel] " Dave Chinner
2020-02-12 18:18   ` Christoph Hellwig
2020-02-12 18:18     ` [Cluster-devel] " Christoph Hellwig
2020-02-12 18:18     ` Christoph Hellwig
2020-02-12 18:18     ` [f2fs-dev] " Christoph Hellwig
2020-02-12 18:18     ` [Ocfs2-devel] " Christoph Hellwig
2020-02-14  5:36   ` John Hubbard
2020-02-14  5:36     ` [Cluster-devel] " John Hubbard
2020-02-14  5:36     ` John Hubbard
2020-02-14  5:36     ` [f2fs-dev] " John Hubbard
2020-02-14  5:36     ` [Ocfs2-devel] " John Hubbard
2020-02-15  1:15     ` Matthew Wilcox
2020-02-15  1:15       ` [Cluster-devel] " Matthew Wilcox
2020-02-15  1:15       ` Matthew Wilcox
2020-02-15  1:15       ` [f2fs-dev] " Matthew Wilcox
2020-02-15  1:15       ` [Ocfs2-devel] " Matthew Wilcox
2020-02-11  1:03 ` [PATCH v5 05/13] mm: Add page_cache_readahead_limit Matthew Wilcox
2020-02-11  1:03   ` [Cluster-devel] " Matthew Wilcox
2020-02-11  1:03   ` Matthew Wilcox
2020-02-11  1:03   ` [f2fs-dev] " Matthew Wilcox
2020-02-11  1:03 ` [PATCH v5 06/13] fs: Convert mpage_readpages to mpage_readahead Matthew Wilcox
2020-02-11  1:03   ` [Cluster-devel] " Matthew Wilcox
2020-02-11  1:03   ` Matthew Wilcox
2020-02-11  1:03   ` [f2fs-dev] " Matthew Wilcox
2020-02-13 22:09   ` Junxiao Bi
2020-02-13 22:09     ` [Cluster-devel] " Junxiao Bi
2020-02-13 22:09     ` Junxiao Bi
2020-02-13 22:09     ` [f2fs-dev] " Junxiao Bi
2020-02-13 22:09     ` [Ocfs2-devel] " Junxiao Bi
2020-02-11  1:03 ` [PATCH v5 07/13] btrfs: Convert from readpages to readahead Matthew Wilcox
2020-02-11  1:03   ` [Cluster-devel] " Matthew Wilcox
2020-02-11  1:03   ` Matthew Wilcox
2020-02-11  1:03   ` [f2fs-dev] " Matthew Wilcox
2020-02-11  1:03 ` [PATCH v5 08/13] erofs: Convert uncompressed files " Matthew Wilcox
2020-02-11  1:03   ` [Cluster-devel] " Matthew Wilcox
2020-02-11  1:03   ` Matthew Wilcox
2020-02-11  1:03   ` [f2fs-dev] " Matthew Wilcox
2020-02-11  1:03 ` [PATCH v5 09/13] erofs: Convert compressed " Matthew Wilcox
2020-02-11  1:03   ` [Cluster-devel] " Matthew Wilcox
2020-02-11  1:03   ` Matthew Wilcox
2020-02-11  1:03   ` [f2fs-dev] " Matthew Wilcox
2020-02-11  1:03 ` [PATCH v5 10/13] ext4: Convert " Matthew Wilcox
2020-02-11  1:03   ` [Cluster-devel] " Matthew Wilcox
2020-02-11  1:03   ` Matthew Wilcox
2020-02-11  1:03   ` [f2fs-dev] " Matthew Wilcox
2020-02-11  1:03 ` [PATCH v5 11/13] f2fs: " Matthew Wilcox
2020-02-11  1:03   ` [Cluster-devel] " Matthew Wilcox
2020-02-11  1:03   ` Matthew Wilcox
2020-02-11  1:03   ` [f2fs-dev] " Matthew Wilcox
2020-02-11  1:03 ` [PATCH v5 12/13] fuse: " Matthew Wilcox
2020-02-11  1:03   ` [Cluster-devel] " Matthew Wilcox
2020-02-11  1:03   ` Matthew Wilcox
2020-02-11  1:03   ` [f2fs-dev] " Matthew Wilcox
2020-02-11  1:03 ` [PATCH v5 13/13] iomap: " Matthew Wilcox
2020-02-11  1:03   ` [Cluster-devel] " Matthew Wilcox
2020-02-11  1:03   ` Matthew Wilcox
2020-02-11  1:03   ` [f2fs-dev] " Matthew Wilcox

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