Currently, for struct stable_node, no one uses it in both the include/linux/ksm.h file and the file that contains it. For struct mem_cgroup, it's also not used in ksm.h. So they're all redundant, just remove them. Signed-off-by: Qi Zheng <zhengqi.arch@xxxxxxxxxxxxx> --- include/linux/ksm.h | 3 --- 1 file changed, 3 deletions(-) diff --git a/include/linux/ksm.h b/include/linux/ksm.h index 0b4f17418f64..7e232ba59b86 100644 --- a/include/linux/ksm.h +++ b/include/linux/ksm.h @@ -15,9 +15,6 @@ #include <linux/sched.h> #include <linux/sched/coredump.h> -struct stable_node; -struct mem_cgroup; - #ifdef CONFIG_KSM int ksm_madvise(struct vm_area_struct *vma, unsigned long start, unsigned long end, int advice, unsigned long *vm_flags); -- 2.20.1