summary of current pending changes in aio-next.git

The first 10 of Kent's AIO optimization series have been pulled into my tree as summarised below. I had to rework some of the patches to correctly apply after Gu Zheng's polishing of the AIO ringbuffer migration support, so any extra eyes on those changes would be helpful. I also fixed a couple of bugs in the table lookup patch, as well as eliminating a BUG_ON() Kent added in order to be a bit more defensive.

These changes should show up in linux-next, so please give them a beating. I plan to post a few more changes against this tree in the next couple of weeks.

-ben
---
The following changes since commit 47188d39b5deeebf41f87a02af1b3935866364cf:

Merge tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4 (2013-07-14 21:47:51 -0700)

are available in the git repository at:

git://git.kvack.org/~bcrl/aio-next.git master

for you to fetch changes up to 6878ea72a5d1aa6caae86449975a50b7fe9abed5:

aio: be defensive to ensure request batching is non-zero instead of BUG_ON() (2013-07-31 10:34:18 -0400)

----------------------------------------------------------------
Benjamin LaHaise (4):
aio: fix build when migration is disabled
aio: double aio_max_nr in calculations
aio: convert the ioctx list to table lookup v3
aio: be defensive to ensure request batching is non-zero instead of BUG_ON()

Gu Zheng (2):
fs/anon_inode: Introduce a new lib function anon_inode_getfile_private() fs/aio: Add support to aio ring pages migration

Kent Overstreet (9):
aio: reqs_active -> reqs_available
aio: percpu reqs_available
aio: percpu ioctx refcount
aio: io_cancel() no longer returns the io_event
aio: Don't use ctx->tail unnecessarily
aio: Kill aio_rw_vect_retry()
aio: Kill unneeded kiocb members
aio: Kill ki_users
aio: Kill ki_dtor

 drivers/staging/android/logger.c |   2 +-
 drivers/usb/gadget/inode.c       |   9 +-
 fs/aio.c                         | 717 +++++++++++++++++++++++++--------------
 fs/anon_inodes.c                 |  66 ++++
 fs/block_dev.c                   |   2 +-
 fs/nfs/direct.c                  |   1 -
 fs/ocfs2/file.c                  |   6 +-
 fs/read_write.c                  |   3 -
 fs/udf/file.c                    |   2 +-
 include/linux/aio.h              |  21 +-
 include/linux/anon_inodes.h      |   3 +
 include/linux/migrate.h          |   3 +
 include/linux/mm_types.h         |   5 +-
 kernel/fork.c                    |   2 +-
 mm/migrate.c                     |   2 +-
 mm/page_io.c                     |   1 -
 net/socket.c                     |  15 +-
 17 files changed, 549 insertions(+), 311 deletions(-)

"Thought is the essence of where you are now."