cr: sysvipc: don't break compilation with CONFIG_SYSVIPC=n

Signed-off-by Serge E. Hallyn <serue-r/[email protected]>

---
 include/linux/checkpoint.h |    2 +-
 include/linux/shm.h        |    2 +-
 init/Kconfig               |    6 ++++++
 ipc/Makefile               |    2 +-
 4 files changed, 9 insertions(+), 3 deletions(-)

include/linux/checkpoint.h +1 -1

index 0c03ac7..812a444 100644
@@ -95,7 +95,7 @@ extern int restore_ipc_ns(struct ckpt_ctx *ctx, int ns_objref, int flags);
 static inline int checkpoint_ipc_ns(struct ckpt_ctx *ctx,
 				    struct ipc_namespace *ipc_ns)
 { return 0; }
-static inline int restore_ipc_ns(struct ckpt_ctx *ctx)
+static inline int restore_ipc_ns(struct ckpt_ctx *ctx, int ns_objref, int flags)
 { return 0; }
 #endif /* CONFIG_SYSVIPC */
 

include/linux/shm.h +1 -1

index 97972eb..6edc26e 100644
@@ -127,7 +127,7 @@ extern int shmctl_down(struct ipc_namespace *ns, int shmid, int cmd,
 extern int ipcshm_restore(struct ckpt_ctx *ctx, struct mm_struct *mm,
 			  struct ckpt_hdr_vma *h);
 #else
-define ipcshm_restart NULL
+#define ipcshm_restore NULL
 #endif
 #endif
 

init/Kconfig +6 -0

index adb4260..3befc07 100644
@@ -186,6 +186,12 @@ config SYSVIPC
 	  section 6.4 of the Linux Programmer's Guide, available from
 	  <http://www.tldp.org/guides.html>.
 
+config SYSVIPC_CHECKPOINT
+	bool
+	depends on SYSVIPC
+	depends on CHECKPOINT
+	default y
+
 config SYSVIPC_SYSCTL
 	bool
 	depends on SYSVIPC

ipc/Makefile +1 -1

index 81af168..6d4c92e 100644
@@ -9,6 +9,6 @@ obj_mq-$(CONFIG_COMPAT) += compat_mq.o
 obj-$(CONFIG_POSIX_MQUEUE) += mqueue.o msgutil.o $(obj_mq-y)
 obj-$(CONFIG_IPC_NS) += namespace.o
 obj-$(CONFIG_POSIX_MQUEUE_SYSCTL) += mq_sysctl.o
-obj-$(CONFIG_CHECKPOINT) += checkpoint.o \
+obj-$(CONFIG_SYSVIPC_CHECKPOINT) += checkpoint.o \
 			checkpoint_shm.o checkpoint_msg.o checkpoint_sem.o