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Message-Id: <1243511204-2328-1-git-send-email-jens.axboe@oracle.com>
Date: Thu, 28 May 2009 13:46:33 +0200
From: Jens Axboe <jens.axboe@...cle.com>
To: linux-kernel@...r.kernel.org, linux-fsdevel@...r.kernel.org,
tytso@....edu
Cc: chris.mason@...cle.com, david@...morbit.com, hch@...radead.org,
akpm@...ux-foundation.org, jack@...e.cz,
yanmin_zhang@...ux.intel.com, richard@....demon.co.uk,
damien.wyart@...e.fr
Subject: [PATCH 0/11] Per-bdi writeback flusher threads v9
Hi,
Here's the 9th version of the writeback patches. Changes since v8:
- Fix a bdi_work on-stack allocation hang. I hope this fixes Ted's
issue.
- Get rid of the explicit wait queues, we can just use wake_up_process()
since it's just for that one task.
- Add separate "sync_supers" thread that makes sure that the dirty
super blocks get written. We cannot safely do this from bdi_forker_task(),
as that risks deadlocking on ->s_umount. Artem, I implemented this
by doing the wake ups from a timer so that it would be easier for you
to just deactivate the timer when there are no super blocks.
For ease of patching, I've put the full diff here:
http://kernel.dk/writeback-v9.patch
and also stored this in a writeback-v9 branch that will not change,
you can pull that into Linus tree from here:
git://git.kernel.dk/linux-2.6-block.git writeback-v9
block/blk-core.c | 1 +
drivers/block/aoe/aoeblk.c | 1 +
drivers/char/mem.c | 1 +
fs/btrfs/disk-io.c | 24 +-
fs/buffer.c | 2 +-
fs/char_dev.c | 1 +
fs/configfs/inode.c | 1 +
fs/fs-writeback.c | 804 ++++++++++++++++++++++++++++-------
fs/fuse/inode.c | 1 +
fs/hugetlbfs/inode.c | 1 +
fs/nfs/client.c | 1 +
fs/ntfs/super.c | 33 +--
fs/ocfs2/dlm/dlmfs.c | 1 +
fs/ramfs/inode.c | 1 +
fs/super.c | 3 -
fs/sync.c | 2 +-
fs/sysfs/inode.c | 1 +
fs/ubifs/super.c | 1 +
include/linux/backing-dev.h | 73 ++++-
include/linux/fs.h | 11 +-
include/linux/writeback.h | 15 +-
kernel/cgroup.c | 1 +
mm/Makefile | 2 +-
mm/backing-dev.c | 518 ++++++++++++++++++++++-
mm/page-writeback.c | 151 +------
mm/pdflush.c | 269 ------------
mm/swap_state.c | 1 +
mm/vmscan.c | 2 +-
28 files changed, 1286 insertions(+), 637 deletions(-)
--
Jens Axboe
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