Hi, Here's the 10th version of the writeback patches. Changes since v9: - Fix bdi task exit race leaving work on the list, flush it after we know we cannot be found anymore. - Rename flusher tasks from bdi-foo to flush-foo. Should make it more clear to the casual observer. - Fix a problem with the btrfs bdi register patch that would spew warnings for > 1 mounted btrfs file system. - Rebase to current -git, there were some conflicts with the latest work from viro/hch. - Fix a block layer core problem were stacked devices would overwrite the bdi state, causing problems and warning spew. - In bdi_writeback_all(), in the race occurence of a work allocation failure, restart scanning from the beginning. Then we can drop the bdi_lock mutex before diving into bdi specific writeback. - Convert bdi_lock to a spinlock. - Use spin_trylock() in bdi_writeback_all(), if this isn't a data integrity writeback. Debatable, I kind of like it... - Get rid of BDI_CAP_FLUSH_FORKER, just check for match with the default_backing_dev_info. - Fix race in list checking in bdi_forker_task(). For ease of patching, I've put the full diff here: http://kernel.dk/writeback-v10.patch and also stored this in a writeback-v10 branch that will not change, you can pull that into Linus tree from here: git://git.kernel.dk/linux-2.6-block.git writeback-v10 Please test and report results/interesting finds. Thanks! b/block/blk-core.c | 6 b/block/blk-settings.c | 4 b/drivers/block/aoe/aoeblk.c | 1 b/drivers/char/mem.c | 1 b/fs/btrfs/disk-io.c | 27 - b/fs/buffer.c | 2 b/fs/char_dev.c | 1 b/fs/configfs/inode.c | 1 b/fs/fs-writeback.c | 818 +++++++++++++++++++++++++++------- b/fs/fuse/inode.c | 1 b/fs/hugetlbfs/inode.c | 1 b/fs/nfs/client.c | 1 b/fs/ocfs2/dlm/dlmfs.c | 1 b/fs/ramfs/inode.c | 1 b/fs/super.c | 3 b/fs/sysfs/inode.c | 1 b/fs/ubifs/super.c | 4 b/include/linux/backing-dev.h | 72 ++ b/include/linux/fs.h | 11 b/include/linux/writeback.h | 15 b/kernel/cgroup.c | 1 b/mm/Makefile | 2 b/mm/backing-dev.c | 519 +++++++++++++++++++++ b/mm/page-writeback.c | 157 ------ b/mm/swap_state.c | 1 b/mm/vmscan.c | 2 mm/pdflush.c | 269 ----------- 27 files changed, 1317 insertions(+), 606 deletions(-) -- Jens Axboe -- To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
