On 3/16/22 21:30, Andrew Morton wrote: > On Wed, 16 Mar 2022 21:21:16 -0700 Randy Dunlap <rdunlap@xxxxxxxxxxxxx> wrote: > >> >> >> 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) >> ^~~~ > > Works For Me. I tried `make x86_64_defconfig' and `make i386_defconfig' too. > > Can you please share that .config, or debug a bit? $ make ARCH=um SUBARCH=x86_64 defconfig This fixes the build error for me when CONFIG_PSI=n. --- include/linux/psi.h | 3 +++ 1 file changed, 3 insertions(+) --- mmotm-2022-0316-1742.orig/include/linux/psi.h +++ mmotm-2022-0316-1742/include/linux/psi.h @@ -53,6 +53,9 @@ static inline int psi_cgroup_alloc(struc static inline void psi_cgroup_free(struct cgroup *cgrp) { } + +#include <linux/cgroup-defs.h> + static inline void cgroup_move_task(struct task_struct *p, struct css_set *to) { rcu_assign_pointer(p->cgroups, to); -- ~Randy
