Re: [GIT PULL tip/core/rcu+preempt] Fix RT raw/non-raw lock ordering

From: Ingo Molnar
Date: Fri Oct 09 2020 - 12:55:08 EST



* Paul E. McKenney <paulmck@xxxxxxxxxx> wrote:

> Hello!
>
> This pull request contains Thomas Gleixner's "Make preempt count
> unconditional" series [1], but with the addition of a kvfree_rcu() bug-fix
> commit making use of this PREEMPT_COUNT addition. This series reduces
> the size of the kernel by almost 100 lines of code and is intended for
> the upcoming v5.10 merge window.

> Thomas Gleixner (13):
> lib/debug: Remove pointless ARCH_NO_PREEMPT dependencies
> preempt: Make preempt count unconditional
> preempt: Cleanup PREEMPT_COUNT leftovers
> lockdep: Cleanup PREEMPT_COUNT leftovers
> mm/pagemap: Cleanup PREEMPT_COUNT leftovers
> locking/bitspinlock: Cleanup PREEMPT_COUNT leftovers
> uaccess: Cleanup PREEMPT_COUNT leftovers
> sched: Cleanup PREEMPT_COUNT leftovers
> ARM: Cleanup PREEMPT_COUNT leftovers
> xtensa: Cleanup PREEMPT_COUNT leftovers
> drm/i915: Cleanup PREEMPT_COUNT leftovers
> rcutorture: Cleanup PREEMPT_COUNT leftovers
> preempt: Remove PREEMPT_COUNT from Kconfig
>
> Uladzislau Rezki (Sony) (1):
> rcu/tree: Allocate a page when caller is preemptible
>
> kernel test robot (1):
> kvfree_rcu(): Fix ifnullfree.cocci warnings

> 21 files changed, 44 insertions(+), 136 deletions(-)

Pulled into tip:core/rcu, thanks a lot guys!

Ingo