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Fixes for 3.12

Paul E. McKenney lkml stable 1 version In review

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  1. v1 Latest11 patches 13 repliesIn review

Patches in v1 No applies recorded yet

#Subject and filesSizeRepliesApplied
1/11rcu: Expedite grace periods during suspend/resumekernel/rcutree.c+18 -04 replies
2/11rcu: Expedite during suspend and resume only on smallish systemskernel/rcutree.c+2 -12 replies
3/11rcu: Simplify debug-objects fixupskernel/rcupdate.c+0 -1000 replies
4/11debugobjects: Make debug_object_activate() return statusinclude/linux/debugobjects.h lib/debugobjects.c+17 -90 replies
5/11rcu: Make call_rcu() leak callbacks for debug-object errorskernel/rcu.h kernel/rcutree.c+20 -40 replies
6/11rcu: Switch to exedited grace periods for suspend as well as hibernationkernel/rcutree.c+3 -12 replies
7/11rcu: Avoid redundant grace-period kthread wakeupskernel/rcutree.c+5 -30 replies
8/11rculist: list_first_or_null_rcu() should use list_entry_rcu()include/linux/rculist.h+3 -20 replies
9/11rcu: Select IRQ_WORK from TREE_PREEMPT_RCUinit/Kconfig+1 -00 replies
10/11rcu: Simplify _rcu_barrier() processingkernel/rcutree.c+13 -20 replies
11/11jiffies: Avoid undefined behavior from signed overflowinclude/linux/jiffies.h+4 -44 replies

Reviews trailers per patch

2 of 11 patches have a Reviewed-by or Acked-by of their own; the series has one for all of them.

PatchSedat DilekJosh Triplett
SeriesR-b
1/11R-b
2/11
3/11T-b
4/11T-b
5/11T-b
6/11
7/11
8/11
9/11
10/11
11/11R-b

Trailers given in replies are filled; those carried in the patches from earlier versions are outlined with dashes.

Read the v1 thread

Cover letter [PATCH tip/core/rcu 0/11] Fixes for 3.12

Hello!

This series contains a number of miscellaneous fixes:

1. Switch to expedited grace periods during hibernation operations
(courtesy of Borislav Petkov).

2. Restrict above expediting to systems of 256 or fewer CPUs.

3. Make RCU debugobjects fixup actions leak callbacks rather than
risking corrupting the callback lists.

4. Propagate above callback leaking to debugobjects's callers.

5. Make call_rcu() leak callbacks when debugobjects indicates an error.

6. Switch to expedited grace periods during suspend/resume operations
(Courtesy of Bjørn Mork).

7. Avoid needless self-wakeups from the grace-period kthreads.

8. Make list_first_or_null_rcu() use list_entry_rcu() (courtesy of
Tejun Heo).

9. Fix irq_work_queue() build error for TREE_PREEMPT_RCU for some
configurations (courtesy of James Hogan).

10. Simplify _rcu_barrier() processing per Linus Torvalds feedback.

11. Avoid signed-overflow undefined behavior in time_after() and friends.

Thanx, Paul

 b/include/linux/debugobjects.h |    6 +-
 b/include/linux/jiffies.h      |    8 +--
 b/include/linux/rculist.h      |    5 +-
 b/init/Kconfig                 |    1 
 b/kernel/rcu.h                 |   10 ++--
 b/kernel/rcupdate.c            |  100 -----------------------------------------
 b/kernel/rcutree.c             |   62 ++++++++++++++++++++++---
 b/lib/debugobjects.c           |   20 +++++---
 8 files changed, 86 insertions(+), 126 deletions(-)