On Tue 18-11-14 03:37:18, Tejun Heo wrote:
> Hello,
>
> This patchset contains the following 10 prepatory patches for cgroup
> writeback support. None of these patches introduces behavior changes.
>
> 0001-writeback-move-backing_dev_info-state-into-bdi_write.patch
> 0002-writeback-move-backing_dev_info-bdi_stat-into-bdi_wr.patch
> 0003-writeback-move-bandwidth-related-fields-from-backing.patch
> 0004-writeback-move-backing_dev_info-wb_lock-and-worklist.patch
> 0005-writeback-move-lingering-dirty-IO-lists-transfer-fro.patch
> 0006-writeback-reorganize-mm-backing-dev.c.patch
> 0007-writeback-separate-out-include-linux-backing-dev-def.patch
> 0008-writeback-cosmetic-change-in-account_page_dirtied.patch
> 0009-writeback-add-gfp-to-wb_init.patch
> 0010-writeback-move-inode_to_bdi-to-include-linux-backing.patch
>
> 0001-0005 move writeback related fields from bdi (backing_dev_info) to
> wb (bdi_writeback). Currently, one bdi embeds one wb and the
> separation between the two is blurry. bdi's lock protects wb's fields
> and fields which are closely related are scattered across the two.
> These five patches move all fields which are used during writeback
> into wb.
>
> 0006-0010 are misc prep patches. They're all rather trivial and each
> is self-explanatory.
>
> This patchset is on top of the current block/for-next eb494facbee2
> ("5748c0fce0fd40c87d164d6bee61") and is available in the following git
> branch.
I have no problem with these patches in principle (I'll check individual
patches in detail) but do you have some higher level design where exactly
are you going?
Honza
PS: I've added CC to linux-fsdevel since there's high chance people miss
these patches in lkml...
> git://git.kernel.org/pub/scm/linux/kernel/git/tj/misc.git review-cgroup-writeback-wb-prep
>
> diffstat follows. Thanks.
>
> block/blk-core.c | 1
> block/blk-integrity.c | 1
> block/blk-sysfs.c | 1
> block/bounce.c | 1
> block/genhd.c | 1
> drivers/block/drbd/drbd_int.h | 1
> drivers/block/drbd/drbd_main.c | 10 -
> drivers/block/pktcdvd.c | 1
> drivers/char/raw.c | 1
> drivers/md/bcache/request.c | 1
> drivers/md/dm.c | 2
> drivers/md/dm.h | 1
> drivers/md/md.h | 1
> drivers/md/raid1.c | 4
> drivers/md/raid10.c | 2
> drivers/mtd/devices/block2mtd.c | 1
> fs/block_dev.c | 1
> fs/ext4/extents.c | 1
> fs/ext4/mballoc.c | 1
> fs/f2fs/node.c | 2
> fs/f2fs/segment.h | 1
> fs/fs-writeback.c | 121 ++++++---------
> fs/fuse/file.c | 12 -
> fs/gfs2/super.c | 2
> fs/hfs/super.c | 1
> fs/hfsplus/super.c | 1
> fs/nfs/filelayout/filelayout.c | 5
> fs/nfs/write.c | 11 -
> fs/reiserfs/super.c | 1
> fs/ufs/super.c | 1
> include/linux/backing-dev-defs.h | 105 +++++++++++++
> include/linux/backing-dev.h | 174 +++++-----------------
> include/linux/blkdev.h | 2
> include/linux/writeback.h | 19 +-
> include/trace/events/writeback.h | 8 -
> mm/backing-dev.c | 306 +++++++++++++++++++--------------------
> mm/filemap.c | 2
> mm/madvise.c | 1
> mm/page-writeback.c | 304 +++++++++++++++++++-------------------
> mm/truncate.c | 4
> 40 files changed, 570 insertions(+), 546 deletions(-)
>
> --
> tejun
--
Jan Kara <jack@xxxxxxx>
SUSE Labs, CR
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