All of lore.kernel.org
 help / color / mirror / Atom feed
From: "Matthew Wilcox (Oracle)" <willy@infradead.org>
To: David Howells <dhowells@redhat.com>
Cc: "Matthew Wilcox (Oracle)" <willy@infradead.org>,
	linux-fsdevel@vger.kernel.org
Subject: [PATCH 0/3] readahead improvements
Date: Wed,  7 Apr 2021 21:18:54 +0100	[thread overview]
Message-ID: <20210407201857.3582797-1-willy@infradead.org> (raw)

As requested, fix up readahead_expand() so as to not confuse the ondemand
algorithm.  Also make the documentation slightly better.  Dave, could you
put in some debug and check this actually works?  I don't generally test
with any filesystems that use readahead_expand(), but printing (index,
nr_to_read, lookahead_size) in page_cache_ra_unbounded() would let a human
(such as your good self) determine whether it's working approximately
as designed.

This is against linux-next 20210407.

Matthew Wilcox (Oracle) (3):
  mm/filemap: Pass the file_ra_state in the ractl
  fs: Document file_ra_state
  mm/readahead: Adjust file_ra in readahead_expand

 fs/ext4/verity.c        |  2 +-
 fs/f2fs/file.c          |  2 +-
 fs/f2fs/verity.c        |  2 +-
 include/linux/fs.h      | 24 ++++++++++++++----------
 include/linux/pagemap.h | 20 +++++++++++---------
 mm/filemap.c            |  4 ++--
 mm/internal.h           |  7 +++----
 mm/readahead.c          | 25 ++++++++++++++-----------
 8 files changed, 47 insertions(+), 39 deletions(-)

-- 
2.30.2


             reply	other threads:[~2021-04-07 20:19 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-04-07 20:18 Matthew Wilcox (Oracle) [this message]
2021-04-07 20:18 ` [PATCH 1/3] mm/filemap: Pass the file_ra_state in the ractl Matthew Wilcox (Oracle)
2021-04-07 20:18 ` [PATCH 2/3] fs: Document file_ra_state Matthew Wilcox (Oracle)
2021-04-07 20:18 ` [PATCH 3/3] mm/readahead: Adjust file_ra in readahead_expand Matthew Wilcox (Oracle)
2021-04-07 22:43 ` [PATCH 0/3] readahead improvements David Howells
2021-04-08 10:57 ` riteshh
2021-04-08 13:15   ` Brendan Gregg
2021-04-08 12:51 ` [PATCH] mm, netfs: Fix readahead bits David Howells
2021-04-08 13:09   ` 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=20210407201857.3582797-1-willy@infradead.org \
    --to=willy@infradead.org \
    --cc=dhowells@redhat.com \
    --cc=linux-fsdevel@vger.kernel.org \
    --subject='Re: [PATCH 0/3] readahead improvements' \
    /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

This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.