linux-ext4 - [patch 0/5] per-zone dirty limits v3

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Message-Id: <1317367044-475-1-git-send-email-jweiner@redhat.com>
Date:	Fri, 30 Sep 2011 09:17:19 +0200
From:	Johannes Weiner <jweiner@...hat.com>
To:	Andrew Morton <akpm@...ux-foundation.org>
Cc:	Mel Gorman <mgorman@...e.de>,
	Christoph Hellwig <hch@...radead.org>,
	Dave Chinner <david@...morbit.com>,
	Wu Fengguang <fengguang.wu@...el.com>, Jan Kara <jack@...e.cz>,
	Rik van Riel <riel@...hat.com>,
	Minchan Kim <minchan.kim@...il.com>,
	Chris Mason <chris.mason@...cle.com>,
	"Theodore Ts'o" <tytso@....edu>,
	Andreas Dilger <adilger.kernel@...ger.ca>,
	Shaohua Li <shaohua.li@...el.com>, xfs@....sgi.com,
	linux-btrfs@...r.kernel.org, linux-ext4@...r.kernel.org,
	linux-mm@...ck.org, linux-fsdevel@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [patch 0/5] per-zone dirty limits v3

Hi,

this is the third revision of the per-zone dirty limits.  Changes from
the second version have been mostly documentation, changelog, and
naming fixes based on review feedback:

o add new dirty_balance_reserve instead of abusing totalreserve_pages
  for undirtyable (per-zone) reserves and document the variable and
  its calculation (Mel)
o use !ALLOC_WMARK_LOW instead of adding new ALLOC_SLOWPATH (Mel)
o rename determine_dirtyable_memory -> global_dirtyable_memory (Andrew)
o better explain behaviour on NUMA in changelog (Andrew)
o extend changelogs and code comments on how per-zone dirty limits are
  calculated, and why, and their proportions to the global limit (Mel, Andrew)
o kernel-doc zone_dirty_ok() (Andrew)
o extend changelogs and code comments on how per-zone dirty limits are
  used to protect zones from dirty pages (Mel, Andrew)
o revert back to a separate set of zone_dirtyable_memory() and zone_dirty_limit()
  for easier reading (Andrew)

Based on v3.1-rc3-mmotm-2011-08-24-14-08.

 fs/btrfs/file.c           |    2 +-
 include/linux/gfp.h       |    4 +-
 include/linux/mmzone.h    |    6 ++
 include/linux/swap.h      |    1 +
 include/linux/writeback.h |    1 +
 mm/filemap.c              |    5 +-
 mm/page-writeback.c       |  181 +++++++++++++++++++++++++++++++++------------
 mm/page_alloc.c           |   48 ++++++++++++
 8 files changed, 197 insertions(+), 51 deletions(-)
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