2 files changed, 18 insertions, 0 deletions
diff --git a/include/linux/ksm.h b/include/linux/ksm.h
index 7e232ba59b86..d9e701326a88 100644
--- a/include/linux/ksm.h
+++ b/include/linux/ksm.h
@@ -51,6 +51,10 @@ struct page *ksm_might_need_to_copy(struct page *page,
 void rmap_walk_ksm(struct folio *folio, struct rmap_walk_control *rwc);
 void folio_migrate_ksm(struct folio *newfolio, struct folio *folio);
 
+#ifdef CONFIG_MEMORY_FAILURE
+void collect_procs_ksm(struct page *page, struct list_head *to_kill,
+		       int force_early);
+#endif
 #else  /* !CONFIG_KSM */
 
 static inline int ksm_fork(struct mm_struct *mm, struct mm_struct *oldmm)
@@ -62,6 +66,13 @@ static inline void ksm_exit(struct mm_struct *mm)
 {
 }
 
+#ifdef CONFIG_MEMORY_FAILURE
+static inline void collect_procs_ksm(struct page *page,
+				     struct list_head *to_kill, int force_early)
+{
+}
+#endif
+
 #ifdef CONFIG_MMU
 static inline int ksm_madvise(struct vm_area_struct *vma, unsigned long start,
 		unsigned long end, int advice, unsigned long *vm_flags)
diff --git a/include/linux/mm.h b/include/linux/mm.h
index 2772a1800cf3..37554b08bb28 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -3604,6 +3604,7 @@ extern int __get_huge_page_for_hwpoison(unsigned long pfn, int flags,
 					bool *migratable_cleared);
 void num_poisoned_pages_inc(unsigned long pfn);
 void num_poisoned_pages_sub(unsigned long pfn, long i);
+struct task_struct *task_early_kill(struct task_struct *tsk, int force_early);
 #else
 static inline void memory_failure_queue(unsigned long pfn, int flags)
 {
@@ -3624,6 +3625,12 @@ static inline void num_poisoned_pages_sub(unsigned long pfn, long i)
 }
 #endif
 
+#if defined(CONFIG_MEMORY_FAILURE) && defined(CONFIG_KSM)
+void add_to_kill_ksm(struct task_struct *tsk, struct page *p,
+		     struct vm_area_struct *vma, struct list_head *to_kill,
+		     unsigned long ksm_addr);
+#endif
+
 #if defined(CONFIG_MEMORY_FAILURE) && defined(CONFIG_MEMORY_HOTPLUG)
 extern void memblk_nr_poison_inc(unsigned long pfn);
 extern void memblk_nr_poison_sub(unsigned long pfn, long i);