Re: mmotm 2022-03-16-17-42 uploaded (uml sub-x86_64, sched/fair, RCU)

[Randy Dunlap]

On 3/16/22 17:43, Andrew Morton wrote:
> The mm-of-the-moment snapshot 2022-03-16-17-42 has been uploaded to
> 
>    https://www.ozlabs.org/~akpm/mmotm/
> 
> mmotm-readme.txt says
> 
> README for mm-of-the-moment:
> 
> https://www.ozlabs.org/~akpm/mmotm/
> 
> This is a snapshot of my -mm patch queue.  Uploaded at random hopefully
> more than once a week.
> 
> You will need quilt to apply these patches to the latest Linus release (5.x
> or 5.x-rcY).  The series file is in broken-out.tar.gz and is duplicated in
> https://ozlabs.org/~akpm/mmotm/series


UML for x86_64, defconfig:

In file included from ./arch/x86/include/generated/asm/rwonce.h:1:0,
                 from ../include/linux/compiler.h:248,
                 from ../include/linux/kernel.h:20,
                 from ../include/linux/cpumask.h:10,
                 from ../include/linux/energy_model.h:4,
                 from ../kernel/sched/fair.c:23:
../include/linux/psi.h: In function ‘cgroup_move_task’:
../include/linux/rcupdate.h:414:36: error: dereferencing pointer to incomplete type ‘struct css_set’
 #define RCU_INITIALIZER(v) (typeof(*(v)) __force __rcu *)(v)
                                    ^~~~
../include/asm-generic/rwonce.h:55:33: note: in definition of macro ‘__WRITE_ONCE’
  *(volatile typeof(x) *)&(x) = (val);    \
                                 ^~~
../include/asm-generic/barrier.h:190:2: note: in expansion of macro ‘WRITE_ONCE’
  WRITE_ONCE(*p, v);      \
  ^~~~~~~~~~
../include/linux/rcupdate.h:455:3: note: in expansion of macro ‘smp_store_release’
   smp_store_release(&p, RCU_INITIALIZER((typeof(p))_r_a_p__v)); \
   ^~~~~~~~~~~~~~~~~
../include/linux/rcupdate.h:455:25: note: in expansion of macro ‘RCU_INITIALIZER’
   smp_store_release(&p, RCU_INITIALIZER((typeof(p))_r_a_p__v)); \
                         ^~~~~~~~~~~~~~~
../include/linux/psi.h:58:2: note: in expansion of macro ‘rcu_assign_pointer’
  rcu_assign_pointer(p->cgroups, to);
  ^~~~~~~~~~~~~~~~~~



-- 
~Randy