[C/R v20][PATCH 40/96] c/r: introduce method '->checkpoint()' in struct vm_operations_struct

[Oren Laadan <orenl@xxxxxxxxxxxxxxx>]

Changelog[v17]
  - Forward-declare 'ckpt_ctx et-al, don't use checkpoint_types.h

Signed-off-by: Oren Laadan <orenl@xxxxxxxxxxxxxxx>
Acked-by: Serge E. Hallyn <serue@xxxxxxxxxx>
Tested-by: Serge E. Hallyn <serue@xxxxxxxxxx>
---
 include/linux/mm.h |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)

diff --git a/include/linux/mm.h b/include/linux/mm.h
index 60c467b..48d67ee 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -19,6 +19,7 @@ struct file_ra_state;
 struct user_struct;
 struct writeback_control;
 struct rlimit;
+struct ckpt_ctx;
 
 #ifndef CONFIG_DISCONTIGMEM          /* Don't use mapnrs, do it properly */
 extern unsigned long max_mapnr;
@@ -220,6 +221,9 @@ struct vm_operations_struct {
 	int (*migrate)(struct vm_area_struct *vma, const nodemask_t *from,
 		const nodemask_t *to, unsigned long flags);
 #endif
+#ifdef CONFIG_CHECKPOINT
+	int (*checkpoint)(struct ckpt_ctx *ctx, struct vm_area_struct *vma);
+#endif
 };
 
 struct mmu_gather;
-- 
1.6.3.3

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