Re: Inode Lock Scalability V7 (was V6)

From: Dave Chinner
Date: Thu Oct 21 2010 - 01:04:37 EST

Folks,

I just pushed a new version of this patchset which is pretty much a rebase on
2.6.36 out. I'm not going to post all the patches as not much changed - mostly
comments were changed. The changelog for the update is:

Version 7:
- rebase on 2.6.36
- iref() to inode->i_ref++ conversion in fs/nfs/write.c
- removed stray inode hash removal call from patches it didn't
belong in.
- cleaned up another stale remove_inode_hash comment.
- cleaned up more comments as reported by Christian Stroetmann
<stroetmann@xxxxxxxxxxxxx>.

--

The following changes since commit f6f94e2ab1b33f0082ac22d71f66385a60d8157f:

Linux 2.6.36 (2010-10-20 13:30:22 -0700)

are available in the git repository at:
git://git.kernel.org/pub/scm/linux/kernel/git/dgc/xfsdev.git inode-scale

Christoph Hellwig (4):
fs: Stop abusing find_inode_fast in iunique
fs: move i_ref increments into find_inode/find_inode_fast
fs: remove inode_add_to_list/__inode_add_to_list
fs: do not assign default i_ino in new_inode

Dave Chinner (13):
fs: switch bdev inode bdi's correctly
fs: Convert nr_inodes and nr_unused to per-cpu counters
fs: Clean up inode reference counting
exofs: use iput() for inode reference count decrements
fs: rework icount to be a locked variable
fs: Factor inode hash operations into functions
fs: Introduce per-bucket inode hash locks
fs: add a per-superblock lock for the inode list
fs: split locking of inode writeback and LRU lists
fs: Protect inode->i_state with the inode->i_lock
fs: protect wake_up_inode with inode->i_lock
fs: icache remove inode_lock
fs: Reduce inode I_FREEING and factor inode disposal

Eric Dumazet (1):
fs: introduce a per-cpu last_ino allocator

Nick Piggin (3):
kernel: add bl_list
fs: Implement lazy LRU updates for inodes
fs: inode split IO and LRU lists

Documentation/filesystems/Locking | 2 +-
Documentation/filesystems/porting | 16 +-
Documentation/filesystems/vfs.txt | 16 +-
arch/powerpc/platforms/cell/spufs/file.c | 2 +-
drivers/infiniband/hw/ipath/ipath_fs.c | 1 +
drivers/infiniband/hw/qib/qib_fs.c | 1 +
drivers/misc/ibmasm/ibmasmfs.c | 1 +
drivers/oprofile/oprofilefs.c | 1 +
drivers/usb/core/inode.c | 1 +
drivers/usb/gadget/f_fs.c | 1 +
drivers/usb/gadget/inode.c | 1 +
fs/9p/vfs_inode.c | 5 +-
fs/affs/inode.c | 2 +-
fs/afs/dir.c | 2 +-
fs/anon_inodes.c | 8 +-
fs/autofs4/inode.c | 1 +
fs/bfs/dir.c | 2 +-
fs/binfmt_misc.c | 1 +
fs/block_dev.c | 42 +-
fs/btrfs/inode.c | 18 +-
fs/buffer.c | 2 +-
fs/ceph/mds_client.c | 2 +-
fs/cifs/inode.c | 2 +-
fs/coda/dir.c | 2 +-
fs/configfs/inode.c | 1 +
fs/debugfs/inode.c | 1 +
fs/drop_caches.c | 19 +-
fs/exofs/inode.c | 6 +-
fs/exofs/namei.c | 2 +-
fs/ext2/namei.c | 2 +-
fs/ext3/ialloc.c | 4 +-
fs/ext3/namei.c | 2 +-
fs/ext4/ialloc.c | 4 +-
fs/ext4/mballoc.c | 1 +
fs/ext4/namei.c | 2 +-
fs/freevxfs/vxfs_inode.c | 1 +
fs/fs-writeback.c | 235 +++++----
fs/fuse/control.c | 1 +
fs/gfs2/ops_inode.c | 2 +-
fs/hfs/hfs_fs.h | 2 +-
fs/hfs/inode.c | 2 +-
fs/hfsplus/dir.c | 2 +-
fs/hfsplus/hfsplus_fs.h | 2 +-
fs/hfsplus/inode.c | 2 +-
fs/hpfs/inode.c | 2 +-
fs/hugetlbfs/inode.c | 1 +
fs/inode.c | 852 +++++++++++++++++++-----------
fs/internal.h | 11 +
fs/jffs2/dir.c | 4 +-
fs/jfs/jfs_txnmgr.c | 2 +-
fs/jfs/namei.c | 2 +-
fs/libfs.c | 2 +-
fs/locks.c | 2 +-
fs/logfs/dir.c | 2 +-
fs/logfs/inode.c | 2 +-
fs/logfs/readwrite.c | 2 +-
fs/minix/namei.c | 2 +-
fs/namei.c | 2 +-
fs/nfs/dir.c | 2 +-
fs/nfs/getroot.c | 2 +-
fs/nfs/inode.c | 4 +-
fs/nfs/nfs4state.c | 2 +-
fs/nfs/write.c | 2 +-
fs/nilfs2/gcdat.c | 1 +
fs/nilfs2/gcinode.c | 22 +-
fs/nilfs2/mdt.c | 5 +-
fs/nilfs2/namei.c | 2 +-
fs/nilfs2/segment.c | 2 +-
fs/nilfs2/the_nilfs.h | 2 +-
fs/notify/inode_mark.c | 46 +-
fs/notify/mark.c | 1 -
fs/notify/vfsmount_mark.c | 1 -
fs/ntfs/inode.c | 10 +-
fs/ntfs/super.c | 6 +-
fs/ocfs2/dlmfs/dlmfs.c | 2 +
fs/ocfs2/inode.c | 2 +-
fs/ocfs2/namei.c | 2 +-
fs/pipe.c | 2 +
fs/proc/base.c | 2 +
fs/proc/proc_sysctl.c | 2 +
fs/quota/dquot.c | 32 +-
fs/ramfs/inode.c | 1 +
fs/reiserfs/namei.c | 2 +-
fs/reiserfs/stree.c | 2 +-
fs/reiserfs/xattr.c | 2 +-
fs/smbfs/inode.c | 2 +-
fs/super.c | 1 +
fs/sysv/namei.c | 2 +-
fs/ubifs/dir.c | 2 +-
fs/ubifs/super.c | 2 +-
fs/udf/inode.c | 2 +-
fs/udf/namei.c | 2 +-
fs/ufs/namei.c | 2 +-
fs/xfs/linux-2.6/xfs_buf.c | 1 +
fs/xfs/linux-2.6/xfs_iops.c | 6 +-
fs/xfs/linux-2.6/xfs_trace.h | 2 +-
fs/xfs/xfs_inode.h | 3 +-
include/linux/backing-dev.h | 3 +
include/linux/fs.h | 43 +-
include/linux/list_bl.h | 146 +++++
include/linux/poison.h | 2 +
include/linux/writeback.h | 4 -
ipc/mqueue.c | 3 +-
kernel/cgroup.c | 1 +
kernel/futex.c | 2 +-
kernel/sysctl.c | 4 +-
mm/backing-dev.c | 28 +-
mm/filemap.c | 6 +-
mm/rmap.c | 6 +-
mm/shmem.c | 7 +-
net/socket.c | 3 +-
net/sunrpc/rpc_pipe.c | 1 +
security/inode.c | 1 +
security/selinux/selinuxfs.c | 1 +
114 files changed, 1134 insertions(+), 628 deletions(-)
create mode 100644 include/linux/list_bl.h

--
Dave Chinner
david@xxxxxxxxxxxxx
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