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Date: Mon, 3 Dec 2012 12:58:16 -0800
From: Kent Overstreet <koverstreet@...gle.com>
To: linux-kernel@...r.kernel.org, linux-aio@...ck.org,
linux-fsdevel@...r.kernel.org
Cc: zab@...hat.com, bcrl@...ck.org, jmoyer@...hat.com, axboe@...nel.dk,
viro@...iv.linux.org.uk, Kent Overstreet <koverstreet@...gle.com>
Subject: [PATCH 00/26] AIO performance improvements/cleanups, v2
Last posting: http://thread.gmane.org/gmane.linux.kernel.aio.general/3169
Changes since the last posting should all be noted in the individual
patch descriptions.
* Zach pointed out the aio_read_evt() patch was calling functions that
could sleep in TASK_INTERRUPTIBLE state, that patch is rewritten.
* Ben pointed out some synchronize_rcu() usage was problematic,
converted it to call_rcu()
* The flush_dcache_page() patch is new
* Changed the "use cancellation list lazily" patch so as to remove
ki_flags from struct kiocb.
Kent Overstreet (21):
aio: Kill return value of aio_complete()
aio: kiocb_cancel()
aio: Move private stuff out of aio.h
aio: dprintk() -> pr_debug()
aio: do fget() after aio_get_req()
aio: Make aio_put_req() lockless
aio: Refcounting cleanup
aio: Convert read_events() to hrtimers
aio: Make aio_read_evt() more efficient
aio: Use flush_dcache_page()
aio: Use cancellation list lazily
aio: Change reqs_active to include unreaped completions
aio: Kill batch allocation
aio: Kill struct aio_ring_info
aio: Give shared kioctx fields their own cachelines
aio: reqs_active -> reqs_available
aio: percpu reqs_available
Generic dynamic per cpu refcounting
aio: Percpu ioctx refcount
aio: use xchg() instead of completion_lock
aio: Don't include aio.h in sched.h
Zach Brown (5):
mm: remove old aio use_mm() comment
aio: remove dead code from aio.h
gadget: remove only user of aio retry
aio: remove retry-based AIO
char: add aio_{read,write} to /dev/{null,zero}
arch/s390/hypfs/inode.c | 1 +
block/scsi_ioctl.c | 1 +
drivers/char/mem.c | 36 +
drivers/infiniband/hw/ipath/ipath_file_ops.c | 1 +
drivers/infiniband/hw/qib/qib_file_ops.c | 2 +-
drivers/staging/android/logger.c | 1 +
drivers/usb/gadget/inode.c | 42 +-
fs/9p/vfs_addr.c | 1 +
fs/afs/write.c | 1 +
fs/aio.c | 1432 ++++++++++----------------
fs/block_dev.c | 1 +
fs/btrfs/file.c | 1 +
fs/btrfs/inode.c | 1 +
fs/ceph/file.c | 1 +
fs/compat.c | 1 +
fs/direct-io.c | 1 +
fs/ecryptfs/file.c | 1 +
fs/ext2/inode.c | 1 +
fs/ext3/inode.c | 1 +
fs/ext4/file.c | 1 +
fs/ext4/indirect.c | 1 +
fs/ext4/inode.c | 1 +
fs/ext4/page-io.c | 1 +
fs/fat/inode.c | 1 +
fs/fuse/dev.c | 1 +
fs/fuse/file.c | 1 +
fs/gfs2/aops.c | 1 +
fs/gfs2/file.c | 1 +
fs/hfs/inode.c | 1 +
fs/hfsplus/inode.c | 1 +
fs/jfs/inode.c | 1 +
fs/nilfs2/inode.c | 2 +-
fs/ntfs/file.c | 1 +
fs/ntfs/inode.c | 1 +
fs/ocfs2/aops.h | 2 +
fs/ocfs2/dlmglue.c | 2 +-
fs/ocfs2/inode.h | 2 +
fs/pipe.c | 1 +
fs/read_write.c | 35 +-
fs/reiserfs/inode.c | 1 +
fs/ubifs/file.c | 1 +
fs/udf/inode.c | 1 +
fs/xfs/xfs_aops.c | 1 +
fs/xfs/xfs_file.c | 1 +
include/linux/aio.h | 135 +--
include/linux/cgroup.h | 1 +
include/linux/errno.h | 1 -
include/linux/percpu-refcount.h | 29 +
include/linux/sched.h | 2 -
kernel/fork.c | 1 +
kernel/printk.c | 1 +
kernel/ptrace.c | 1 +
lib/Makefile | 2 +-
lib/percpu-refcount.c | 164 +++
mm/mmu_context.c | 3 -
mm/page_io.c | 1 +
mm/shmem.c | 1 +
mm/swap.c | 1 +
security/keys/internal.h | 2 +
security/keys/keyctl.c | 1 +
sound/core/pcm_native.c | 2 +-
61 files changed, 868 insertions(+), 1070 deletions(-)
create mode 100644 include/linux/percpu-refcount.h
create mode 100644 lib/percpu-refcount.c
--
1.7.12
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