[Devel] [PATCH 1/4] shm.h: add checkpoint-related declarations

[Nathan Lynch]

shm.h apparently relies on ordering of includes in .c files to get
declarations of ckpt_ctx and ckpt_hdr_vma for ipcshm_restore's
prototype.  This is bad.  Add appropriate forward declarations.

Signed-off-by: Nathan Lynch <ntl at pobox.com>
---
 include/linux/shm.h |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/include/linux/shm.h b/include/linux/shm.h
index 6edc26e..94ac1a7 100644
--- a/include/linux/shm.h
+++ b/include/linux/shm.h
@@ -124,6 +124,8 @@ extern int shmctl_down(struct ipc_namespace *ns, int shmid, int cmd,
 
 #ifdef CONFIG_CHECKPOINT
 #ifdef CONFIG_SYSVIPC
+struct ckpt_ctx;
+struct ckpt_hdr_vma;
 extern int ipcshm_restore(struct ckpt_ctx *ctx, struct mm_struct *mm,
 			  struct ckpt_hdr_vma *h);
 #else
-- 
1.6.0.6

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