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Message-ID: <20140804140400.GB26230@htj.dyndns.org>
Date: Mon, 4 Aug 2014 10:04:00 -0400
From: Tejun Heo <tj@...nel.org>
To: Linus Torvalds <torvalds@...ux-foundation.org>
Cc: linux-kernel@...r.kernel.org
Subject: [GIT PULL] percpu changes for v3.17-rc1
Hello, Linus.
* Major reorganization of percpu header files which I think makes
things a lot more readable and logical than before.
* percpu-refcount is updated so that it requires explicit destruction
and can be reinitialized if necessary. This was pulled into the
block tree to replace the custom percpu refcnting implemented in
blk-mq.
* In the process, percpu and percpu-refcount got cleaned up a bit.
This pull request contains two stray workqueue commits from Lai.
These are my mistakes. I mistakenly applied the two to this tree and
then cherry picked them to the workqueue tree but forgot to roll them
back from this one. I realized this only after percpu-refcount
changes were pulled into the block tree so couldn't fix it up
afterwards. Sorry. They shouldn't cause any problem during merge.
Thanks.
The following changes since commit ebe06187bf2aec10d537ce4595e416035367d703:
epoll: fix use-after-free in eventpoll_release_file (2014-06-16 17:21:59 -1000)
are available in the git repository at:
git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu.git for-3.17
for you to fetch changes up to 2d7227828e1475c7b272e55bd70c4cec8eea219a:
percpu-refcount: implement percpu_ref_reinit() and percpu_ref_is_zero() (2014-06-28 08:10:14 -0400)
----------------------------------------------------------------
Christoph Lameter (1):
percpu: Use ALIGN macro instead of hand coding alignment calculation
Lai Jiangshan (2):
workqueue: clear POOL_DISASSOCIATED in rebind_workers()
workqueue: stronger test in process_one_work()
Tejun Heo (18):
percpu: disallow archs from overriding SHIFT_PERCPU_PTR()
percpu: introduce arch_raw_cpu_ptr()
percpu: include/asm-generic/percpu.h should contain only arch-overridable parts
percpu: move accessors from include/linux/percpu.h to percpu-defs.h
percpu: reorganize include/linux/percpu-defs.h
percpu: only allow sized arch overrides for {raw|this}_cpu_*() ops
percpu: move generic {raw|this}_cpu_*_N() definitions to include/asm-generic/percpu.h
percpu: move {raw|this}_cpu_*() definitions to include/linux/percpu-defs.h
percpu: reorder macros in percpu header files
percpu: use raw_cpu_*() to define __this_cpu_*()
percpu: preffity percpu header files
percpu: invoke __verify_pcpu_ptr() from the generic part of accessors and operations
percpu-refcount, aio: use percpu_ref_cancel_init() in ioctx_alloc()
percpu-refcount: one bit is enough for REF_STATUS
percpu-refcount: add helpers for ->percpu_count accesses
percpu-refcount: use unsigned long for pcpu_count pointer
percpu-refcount: require percpu_ref to be exited explicitly
percpu-refcount: implement percpu_ref_reinit() and percpu_ref_is_zero()
arch/x86/include/asm/percpu.h | 3 +-
drivers/target/target_core_tpg.c | 4 +-
fs/aio.c | 6 +-
include/asm-generic/percpu.h | 410 ++++++++++++++++++++----
include/linux/percpu-defs.h | 380 +++++++++++++++++++++-
include/linux/percpu-refcount.h | 64 ++--
include/linux/percpu.h | 673 ---------------------------------------
kernel/cgroup.c | 8 +-
kernel/workqueue.c | 19 +-
lib/percpu-refcount.c | 86 +++--
mm/percpu.c | 3 +-
11 files changed, 834 insertions(+), 822 deletions(-)
--
tejun
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