[GIT PULL UPDATED] workqueue changes for v4.5-rc1

From: Tejun Heo
Date: Mon Jan 11 2016 - 14:30:37 EST


Hello, Linus. I messed up the request-pull part of the previous
message. Here's the correct one.

workqueue changes for v4.5. One cleanup patch and three to improve
the debuggability. Workqueue now has a stall detector which dumps
workqueue state if any worker pool hasn't made forward progress over a
certain amount of time (30s by default) and also triggers a warning if
a workqueue which can be used in memory reclaim path tries to wait on
something which can't be. These should make workqueue hangs a lot
easier to debug.

Thanks.

The following changes since commit 527e9316f8ec44bd53d90fb9f611fa7ffff52bb9:

Linux 4.4-rc4 (2015-12-06 15:43:12 -0800)

are available in the git repository at:

git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq.git for-4.5

for you to fetch changes up to 6201171e3b2c02992e62448636631a0dfe4e9d20:

workqueue: simplify the apply_workqueue_attrs_locked() (2016-01-07 11:04:34 -0500)

----------------------------------------------------------------
Tejun Heo (3):
workqueue: warn if memory reclaim tries to flush !WQ_MEM_RECLAIM workqueue
watchdog: introduce touch_softlockup_watchdog_sched()
workqueue: implement lockup detector

wanghaibin (1):
workqueue: simplify the apply_workqueue_attrs_locked()

Documentation/kernel-parameters.txt | 9 ++
include/linux/sched.h | 4 +
include/linux/workqueue.h | 6 +
kernel/sched/clock.c | 2 +-
kernel/time/tick-sched.c | 6 +-
kernel/watchdog.c | 18 ++-
kernel/workqueue.c | 220 ++++++++++++++++++++++++++++++++++--
lib/Kconfig.debug | 11 ++
8 files changed, 261 insertions(+), 15 deletions(-)

--
tejun