Linux-Fsdevel Archive on lore.kernel.org
 help / color / Atom feed
From: Matthew Wilcox <willy@infradead.org>
To: linux-fsdevel@vger.kernel.org
Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org,
	linux-btrfs@vger.kernel.org, linux-erofs@lists.ozlabs.org,
	linux-ext4@vger.kernel.org,
	linux-f2fs-devel@lists.sourceforge.net,
	linux-xfs@vger.kernel.org, cluster-devel@redhat.com,
	ocfs2-devel@oss.oracle.com
Subject: Re: [PATCH 03/12] readahead: Put pages in cache earlier
Date: Sat, 25 Jan 2020 11:44:49 -0800
Message-ID: <20200125194449.GO4675@bombadil.infradead.org> (raw)
In-Reply-To: <20200125013553.24899-4-willy@infradead.org>

On Fri, Jan 24, 2020 at 05:35:44PM -0800, Matthew Wilcox wrote:
> @@ -192,8 +194,18 @@ unsigned long __do_page_cache_readahead(struct address_space *mapping,
>  		page = __page_cache_alloc(gfp_mask);
>  		if (!page)
>  			break;
> -		page->index = page_offset;
> -		list_add(&page->lru, &page_pool);
> +		if (use_list) {
> +			page->index = page_offset;
> +			list_add(&page->lru, &page_pool);
> +		} else if (!add_to_page_cache_lru(page, mapping, page_offset,
> +					gfp_mask)) {
> +			if (nr_pages)
> +				read_pages(mapping, filp, &page_pool,
> +						page_offset - nr_pages,
> +						nr_pages);
> +			nr_pages = 0;

This is missing a call to put_page().

> +			continue;
> +		}
>  		if (page_idx == nr_to_read - lookahead_size)
>  			SetPageReadahead(page);
>  		nr_pages++;

  reply index

Thread overview: 34+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-01-25  1:35 [PATCH 00/12] Change readahead API Matthew Wilcox
2020-01-25  1:35 ` [PATCH 01/12] mm: Fix the return type of __do_page_cache_readahead Matthew Wilcox
2020-01-25  1:35 ` [PATCH 02/12] readahead: Ignore return value of ->readpages Matthew Wilcox
2020-01-25  1:35 ` [PATCH 03/12] readahead: Put pages in cache earlier Matthew Wilcox
2020-01-25 19:44   ` Matthew Wilcox [this message]
2020-01-25  1:35 ` [PATCH 04/12] mm: Add readahead address space operation Matthew Wilcox
2020-01-25  3:57   ` Randy Dunlap
2020-02-01  0:25     ` Matthew Wilcox
2020-01-29  0:24   ` Dave Chinner
2020-01-30  8:00     ` Matthew Wilcox
2020-01-25  1:35 ` [PATCH 05/12] fs: Convert mpage_readpages to mpage_readahead Matthew Wilcox
2020-01-25  1:35 ` [PATCH 06/12] btrfs: Convert from readpages to readahead Matthew Wilcox
2020-01-29  0:46   ` Dave Chinner
2020-01-30  8:09     ` Matthew Wilcox
2020-01-31  2:17       ` Dave Chinner
2020-01-25  1:35 ` [PATCH 07/12] erofs: Convert uncompressed files " Matthew Wilcox
2020-01-25  1:53   ` Gao Xiang
2020-01-25 19:09     ` Matthew Wilcox
2020-01-29  0:57   ` Dave Chinner
2020-01-30  8:10     ` Matthew Wilcox
2020-01-25  1:35 ` [PATCH 08/12] erofs: Convert compressed " Matthew Wilcox
2020-01-25  1:35 ` [PATCH 09/12] ext4: Convert " Matthew Wilcox
2020-01-25  1:35 ` [PATCH 10/12] f2fs: " Matthew Wilcox
2020-01-25  1:35 ` [PATCH 11/12] fuse: " Matthew Wilcox
2020-01-29  1:08   ` Dave Chinner
2020-01-30 21:35     ` Matthew Wilcox
2020-01-31  2:19       ` Dave Chinner
2020-01-29 10:50   ` Miklos Szeredi
2020-01-30  7:26     ` Matthew Wilcox
2020-01-25  1:35 ` [PATCH 12/12] iomap: " Matthew Wilcox
2020-01-29  1:38   ` Dave Chinner
2020-01-31  9:44     ` Matthew Wilcox
2020-02-13  4:38 ` [PATCH 00/12] Change readahead API Andrew Morton
2020-02-13 13:43   ` Matthew Wilcox

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20200125194449.GO4675@bombadil.infradead.org \
    --to=willy@infradead.org \
    --cc=cluster-devel@redhat.com \
    --cc=linux-btrfs@vger.kernel.org \
    --cc=linux-erofs@lists.ozlabs.org \
    --cc=linux-ext4@vger.kernel.org \
    --cc=linux-f2fs-devel@lists.sourceforge.net \
    --cc=linux-fsdevel@vger.kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-mm@kvack.org \
    --cc=linux-xfs@vger.kernel.org \
    --cc=ocfs2-devel@oss.oracle.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

Linux-Fsdevel Archive on lore.kernel.org

Archives are clonable:
	git clone --mirror https://lore.kernel.org/linux-fsdevel/0 linux-fsdevel/git/0.git

	# If you have public-inbox 1.1+ installed, you may
	# initialize and index your mirror using the following commands:
	public-inbox-init -V2 linux-fsdevel linux-fsdevel/ https://lore.kernel.org/linux-fsdevel \
		linux-fsdevel@vger.kernel.org
	public-inbox-index linux-fsdevel

Example config snippet for mirrors

Newsgroup available over NNTP:
	nntp://nntp.lore.kernel.org/org.kernel.vger.linux-fsdevel


AGPL code for this site: git clone https://public-inbox.org/public-inbox.git