linux-kernel - [RFC v17][PATCH 37/60] c/r: introduce method '->checkpoint()' in struct vm_operations

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Message-Id: <1248256822-23416-38-git-send-email-orenl@librato.com>
Date:	Wed, 22 Jul 2009 05:59:59 -0400
From:	Oren Laadan <orenl@...rato.com>
To:	Andrew Morton <akpm@...ux-foundation.org>
Cc:	Linus Torvalds <torvalds@...l.org>,
	containers@...ts.linux-foundation.org,
	linux-kernel@...r.kernel.org, linux-mm@...ck.org,
	linux-api@...r.kernel.org, Serge Hallyn <serue@...ibm.com>,
	Dave Hansen <dave@...ux.vnet.ibm.com>,
	Ingo Molnar <mingo@...e.hu>, "H. Peter Anvin" <hpa@...or.com>,
	Alexander Viro <viro@...iv.linux.org.uk>,
	Pavel Emelyanov <xemul@...nvz.org>,
	Alexey Dobriyan <adobriyan@...il.com>,
	Oren Laadan <orenl@...rato.com>,
	Oren Laadan <orenl@...columbia.edu>
Subject: [RFC v17][PATCH 37/60] c/r: introduce method '->checkpoint()' in struct vm_operations_struct

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

Signed-off-by: Oren Laadan <orenl@...columbia.edu>
---
 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 ba3a7cb..0e46e95 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;
-- 
1.6.0.4

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