diff --git a/libc/kernel/uapi/drm/amdgpu_drm.h b/libc/kernel/uapi/drm/amdgpu_drm.h
index bdf59d6..2013fa7 100644
--- a/libc/kernel/uapi/drm/amdgpu_drm.h
+++ b/libc/kernel/uapi/drm/amdgpu_drm.h
@@ -20,6 +20,7 @@
 #define __AMDGPU_DRM_H__
 #include "drm.h"
 #ifdef __cplusplus
+extern "C" {
 #endif
 #define DRM_AMDGPU_GEM_CREATE 0x00
 #define DRM_AMDGPU_GEM_MMAP 0x01
@@ -593,5 +594,6 @@
 #define AMDGPU_FAMILY_AI 141
 #define AMDGPU_FAMILY_RV 142
 #ifdef __cplusplus
+}
 #endif
 #endif
diff --git a/libc/kernel/uapi/drm/armada_drm.h b/libc/kernel/uapi/drm/armada_drm.h
index ea1f37d..aabd23b 100644
--- a/libc/kernel/uapi/drm/armada_drm.h
+++ b/libc/kernel/uapi/drm/armada_drm.h
@@ -20,6 +20,7 @@
 #define DRM_ARMADA_IOCTL_H
 #include "drm.h"
 #ifdef __cplusplus
+extern "C" {
 #endif
 #define DRM_ARMADA_GEM_CREATE 0x00
 #define DRM_ARMADA_GEM_MMAP 0x02
@@ -46,5 +47,6 @@
 };
 #define DRM_IOCTL_ARMADA_GEM_PWRITE ARMADA_IOCTL(IOW, GEM_PWRITE, gem_pwrite)
 #ifdef __cplusplus
+}
 #endif
 #endif
diff --git a/libc/kernel/uapi/drm/drm.h b/libc/kernel/uapi/drm/drm.h
index 21f23f4..ef64ed7 100644
--- a/libc/kernel/uapi/drm/drm.h
+++ b/libc/kernel/uapi/drm/drm.h
@@ -37,6 +37,7 @@
 typedef unsigned long drm_handle_t;
 #endif
 #ifdef __cplusplus
+extern "C" {
 #endif
 #define DRM_NAME "drm"
 #define DRM_MIN_ORDER 5
@@ -429,9 +430,11 @@
   __u64 user_data;
 };
 #ifdef __cplusplus
+}
 #endif
 #include "drm_mode.h"
 #ifdef __cplusplus
+extern "C" {
 #endif
 #define DRM_IOCTL_BASE 'd'
 #define DRM_IO(nr) _IO(DRM_IOCTL_BASE, nr)
@@ -603,5 +606,6 @@
 typedef struct drm_scatter_gather drm_scatter_gather_t;
 typedef struct drm_set_version drm_set_version_t;
 #ifdef __cplusplus
+}
 #endif
 #endif
diff --git a/libc/kernel/uapi/drm/drm_fourcc.h b/libc/kernel/uapi/drm/drm_fourcc.h
index 9634e99..4589cfe 100644
--- a/libc/kernel/uapi/drm/drm_fourcc.h
+++ b/libc/kernel/uapi/drm/drm_fourcc.h
@@ -20,6 +20,7 @@
 #define DRM_FOURCC_H
 #include "drm.h"
 #ifdef __cplusplus
+extern "C" {
 #endif
 #define fourcc_code(a,b,c,d) ((__u32) (a) | ((__u32) (b) << 8) | ((__u32) (c) << 16) | ((__u32) (d) << 24))
 #define DRM_FORMAT_BIG_ENDIAN (1 << 31)
@@ -156,5 +157,6 @@
 #define AFBC_FORMAT_MOD_TILED (1ULL << 8)
 #define AFBC_FORMAT_MOD_SC (1ULL << 9)
 #ifdef __cplusplus
+}
 #endif
 #endif
diff --git a/libc/kernel/uapi/drm/drm_mode.h b/libc/kernel/uapi/drm/drm_mode.h
index 06c26e4..dff9f34 100644
--- a/libc/kernel/uapi/drm/drm_mode.h
+++ b/libc/kernel/uapi/drm/drm_mode.h
@@ -20,6 +20,7 @@
 #define _DRM_MODE_H
 #include "drm.h"
 #ifdef __cplusplus
+extern "C" {
 #endif
 #define DRM_DISPLAY_INFO_LEN 32
 #define DRM_CONNECTOR_NAME_LEN 32
@@ -463,5 +464,6 @@
   __u32 lessee_id;
 };
 #ifdef __cplusplus
+}
 #endif
 #endif
diff --git a/libc/kernel/uapi/drm/drm_sarea.h b/libc/kernel/uapi/drm/drm_sarea.h
index 03317b9..a0c7f3a 100644
--- a/libc/kernel/uapi/drm/drm_sarea.h
+++ b/libc/kernel/uapi/drm/drm_sarea.h
@@ -20,6 +20,7 @@
 #define _DRM_SAREA_H_
 #include "drm.h"
 #ifdef __cplusplus
+extern "C" {
 #endif
 #ifdef __alpha__
 #define SAREA_MAX 0x2000U
@@ -54,5 +55,6 @@
 typedef struct drm_sarea_frame drm_sarea_frame_t;
 typedef struct drm_sarea drm_sarea_t;
 #ifdef __cplusplus
+}
 #endif
 #endif
diff --git a/libc/kernel/uapi/drm/etnaviv_drm.h b/libc/kernel/uapi/drm/etnaviv_drm.h
index bb502d9..4c09e6c 100644
--- a/libc/kernel/uapi/drm/etnaviv_drm.h
+++ b/libc/kernel/uapi/drm/etnaviv_drm.h
@@ -20,6 +20,7 @@
 #define __ETNAVIV_DRM_H__
 #include "drm.h"
 #ifdef __cplusplus
+extern "C" {
 #endif
 struct drm_etnaviv_timespec {
   __s64 tv_sec;
@@ -193,5 +194,6 @@
 #define DRM_IOCTL_ETNAVIV_PM_QUERY_DOM DRM_IOWR(DRM_COMMAND_BASE + DRM_ETNAVIV_PM_QUERY_DOM, struct drm_etnaviv_pm_domain)
 #define DRM_IOCTL_ETNAVIV_PM_QUERY_SIG DRM_IOWR(DRM_COMMAND_BASE + DRM_ETNAVIV_PM_QUERY_SIG, struct drm_etnaviv_pm_signal)
 #ifdef __cplusplus
+}
 #endif
 #endif
diff --git a/libc/kernel/uapi/drm/exynos_drm.h b/libc/kernel/uapi/drm/exynos_drm.h
index 8b27cbb..4918035 100644
--- a/libc/kernel/uapi/drm/exynos_drm.h
+++ b/libc/kernel/uapi/drm/exynos_drm.h
@@ -20,6 +20,7 @@
 #define _UAPI_EXYNOS_DRM_H_
 #include "drm.h"
 #ifdef __cplusplus
+extern "C" {
 #endif
 struct drm_exynos_gem_create {
   __u64 size;
@@ -225,5 +226,6 @@
   __u64 reserved;
 };
 #ifdef __cplusplus
+}
 #endif
 #endif
diff --git a/libc/kernel/uapi/drm/i810_drm.h b/libc/kernel/uapi/drm/i810_drm.h
index 1fd3c46..e33387d 100644
--- a/libc/kernel/uapi/drm/i810_drm.h
+++ b/libc/kernel/uapi/drm/i810_drm.h
@@ -20,6 +20,7 @@
 #define _I810_DRM_H_
 #include "drm.h"
 #ifdef __cplusplus
+extern "C" {
 #endif
 #ifndef _I810_DEFINES_
 #define _I810_DEFINES_
@@ -214,5 +215,6 @@
   unsigned int last_render;
 } drm_i810_mc_t;
 #ifdef __cplusplus
+}
 #endif
 #endif
diff --git a/libc/kernel/uapi/drm/i915_drm.h b/libc/kernel/uapi/drm/i915_drm.h
index 4c1d87f..53d1548 100644
--- a/libc/kernel/uapi/drm/i915_drm.h
+++ b/libc/kernel/uapi/drm/i915_drm.h
@@ -20,6 +20,7 @@
 #define _UAPI_I915_DRM_H_
 #include "drm.h"
 #ifdef __cplusplus
+extern "C" {
 #endif
 #define I915_L3_PARITY_UEVENT "L3_PARITY_ERROR"
 #define I915_ERROR_UEVENT "ERROR"
@@ -775,5 +776,6 @@
   __u8 data[];
 };
 #ifdef __cplusplus
+}
 #endif
 #endif
diff --git a/libc/kernel/uapi/drm/mga_drm.h b/libc/kernel/uapi/drm/mga_drm.h
index 4d5ad0c..4959502 100644
--- a/libc/kernel/uapi/drm/mga_drm.h
+++ b/libc/kernel/uapi/drm/mga_drm.h
@@ -20,6 +20,7 @@
 #define __MGA_DRM_H__
 #include "drm.h"
 #ifdef __cplusplus
+extern "C" {
 #endif
 #ifndef __MGA_SAREA_DEFINES__
 #define __MGA_SAREA_DEFINES__
@@ -240,5 +241,6 @@
   void __user * value;
 } drm_mga_getparam_t;
 #ifdef __cplusplus
+}
 #endif
 #endif
diff --git a/libc/kernel/uapi/drm/msm_drm.h b/libc/kernel/uapi/drm/msm_drm.h
index 1d53c5d..df8119f 100644
--- a/libc/kernel/uapi/drm/msm_drm.h
+++ b/libc/kernel/uapi/drm/msm_drm.h
@@ -20,6 +20,7 @@
 #define __MSM_DRM_H__
 #include "drm.h"
 #ifdef __cplusplus
+extern "C" {
 #endif
 #define MSM_PIPE_NONE 0x00
 #define MSM_PIPE_2D0 0x01
@@ -158,5 +159,6 @@
 #define DRM_IOCTL_MSM_SUBMITQUEUE_NEW DRM_IOWR(DRM_COMMAND_BASE + DRM_MSM_SUBMITQUEUE_NEW, struct drm_msm_submitqueue)
 #define DRM_IOCTL_MSM_SUBMITQUEUE_CLOSE DRM_IOW(DRM_COMMAND_BASE + DRM_MSM_SUBMITQUEUE_CLOSE, __u32)
 #ifdef __cplusplus
+}
 #endif
 #endif
diff --git a/libc/kernel/uapi/drm/nouveau_drm.h b/libc/kernel/uapi/drm/nouveau_drm.h
index f9c3447..54c3b97 100644
--- a/libc/kernel/uapi/drm/nouveau_drm.h
+++ b/libc/kernel/uapi/drm/nouveau_drm.h
@@ -21,6 +21,7 @@
 #define DRM_NOUVEAU_EVENT_NVIF 0x80000000
 #include "drm.h"
 #ifdef __cplusplus
+extern "C" {
 #endif
 #define NOUVEAU_GEM_DOMAIN_CPU (1 << 0)
 #define NOUVEAU_GEM_DOMAIN_VRAM (1 << 1)
@@ -122,5 +123,6 @@
 #define DRM_IOCTL_NOUVEAU_GEM_CPU_FINI DRM_IOW(DRM_COMMAND_BASE + DRM_NOUVEAU_GEM_CPU_FINI, struct drm_nouveau_gem_cpu_fini)
 #define DRM_IOCTL_NOUVEAU_GEM_INFO DRM_IOWR(DRM_COMMAND_BASE + DRM_NOUVEAU_GEM_INFO, struct drm_nouveau_gem_info)
 #ifdef __cplusplus
+}
 #endif
 #endif
diff --git a/libc/kernel/uapi/drm/omap_drm.h b/libc/kernel/uapi/drm/omap_drm.h
index 54b539a..3c2fc08 100644
--- a/libc/kernel/uapi/drm/omap_drm.h
+++ b/libc/kernel/uapi/drm/omap_drm.h
@@ -20,6 +20,7 @@
 #define __OMAP_DRM_H__
 #include "drm.h"
 #ifdef __cplusplus
+extern "C" {
 #endif
 #define OMAP_PARAM_CHIPSET_ID 1
 struct drm_omap_param {
@@ -84,5 +85,6 @@
 #define DRM_IOCTL_OMAP_GEM_CPU_FINI DRM_IOW(DRM_COMMAND_BASE + DRM_OMAP_GEM_CPU_FINI, struct drm_omap_gem_cpu_fini)
 #define DRM_IOCTL_OMAP_GEM_INFO DRM_IOWR(DRM_COMMAND_BASE + DRM_OMAP_GEM_INFO, struct drm_omap_gem_info)
 #ifdef __cplusplus
+}
 #endif
 #endif
diff --git a/libc/kernel/uapi/drm/qxl_drm.h b/libc/kernel/uapi/drm/qxl_drm.h
index 5942635..e9521c4 100644
--- a/libc/kernel/uapi/drm/qxl_drm.h
+++ b/libc/kernel/uapi/drm/qxl_drm.h
@@ -20,6 +20,7 @@
 #define QXL_DRM_H
 #include "drm.h"
 #ifdef __cplusplus
+extern "C" {
 #endif
 #define QXL_GEM_DOMAIN_CPU 0
 #define QXL_GEM_DOMAIN_VRAM 1
@@ -97,5 +98,6 @@
 #define DRM_IOCTL_QXL_CLIENTCAP DRM_IOW(DRM_COMMAND_BASE + DRM_QXL_CLIENTCAP, struct drm_qxl_clientcap)
 #define DRM_IOCTL_QXL_ALLOC_SURF DRM_IOWR(DRM_COMMAND_BASE + DRM_QXL_ALLOC_SURF, struct drm_qxl_alloc_surf)
 #ifdef __cplusplus
+}
 #endif
 #endif
diff --git a/libc/kernel/uapi/drm/r128_drm.h b/libc/kernel/uapi/drm/r128_drm.h
index 85dea7e..618b6dc 100644
--- a/libc/kernel/uapi/drm/r128_drm.h
+++ b/libc/kernel/uapi/drm/r128_drm.h
@@ -20,6 +20,7 @@
 #define __R128_DRM_H__
 #include "drm.h"
 #ifdef __cplusplus
+extern "C" {
 #endif
 #ifndef __R128_SAREA_DEFINES__
 #define __R128_SAREA_DEFINES__
@@ -229,5 +230,6 @@
   void __user * value;
 } drm_r128_getparam_t;
 #ifdef __cplusplus
+}
 #endif
 #endif
diff --git a/libc/kernel/uapi/drm/radeon_drm.h b/libc/kernel/uapi/drm/radeon_drm.h
index fe8fe67..9dc69ad 100644
--- a/libc/kernel/uapi/drm/radeon_drm.h
+++ b/libc/kernel/uapi/drm/radeon_drm.h
@@ -20,6 +20,7 @@
 #define __RADEON_DRM_H__
 #include "drm.h"
 #ifdef __cplusplus
+extern "C" {
 #endif
 #ifndef __RADEON_SAREA_DEFINES__
 #define __RADEON_SAREA_DEFINES__
@@ -801,5 +802,6 @@
 #define SI_TILE_MODE_DEPTH_STENCIL_2D_8AA 2
 #define CIK_TILE_MODE_DEPTH_STENCIL_1D 5
 #ifdef __cplusplus
+}
 #endif
 #endif
diff --git a/libc/kernel/uapi/drm/savage_drm.h b/libc/kernel/uapi/drm/savage_drm.h
index 8c5a172..ae87d21 100644
--- a/libc/kernel/uapi/drm/savage_drm.h
+++ b/libc/kernel/uapi/drm/savage_drm.h
@@ -20,6 +20,7 @@
 #define __SAVAGE_DRM_H__
 #include "drm.h"
 #ifdef __cplusplus
+extern "C" {
 #endif
 #ifndef __SAVAGE_SAREA_DEFINES__
 #define __SAVAGE_SAREA_DEFINES__
@@ -151,5 +152,6 @@
   } clear1;
 };
 #ifdef __cplusplus
+}
 #endif
 #endif
diff --git a/libc/kernel/uapi/drm/sis_drm.h b/libc/kernel/uapi/drm/sis_drm.h
index ba88ea9..1606a85 100644
--- a/libc/kernel/uapi/drm/sis_drm.h
+++ b/libc/kernel/uapi/drm/sis_drm.h
@@ -20,6 +20,7 @@
 #define __SIS_DRM_H__
 #include "drm.h"
 #ifdef __cplusplus
+extern "C" {
 #endif
 #define NOT_USED_0_3
 #define DRM_SIS_FB_ALLOC 0x04
@@ -48,5 +49,6 @@
   unsigned long offset, size;
 } drm_sis_fb_t;
 #ifdef __cplusplus
+}
 #endif
 #endif
diff --git a/libc/kernel/uapi/drm/tegra_drm.h b/libc/kernel/uapi/drm/tegra_drm.h
index ee111dc..5244a27 100644
--- a/libc/kernel/uapi/drm/tegra_drm.h
+++ b/libc/kernel/uapi/drm/tegra_drm.h
@@ -20,6 +20,7 @@
 #define _UAPI_TEGRA_DRM_H_
 #include "drm.h"
 #ifdef __cplusplus
+extern "C" {
 #endif
 #define DRM_TEGRA_GEM_CREATE_TILED (1 << 0)
 #define DRM_TEGRA_GEM_CREATE_BOTTOM_UP (1 << 1)
@@ -163,5 +164,6 @@
 #define DRM_IOCTL_TEGRA_GEM_SET_FLAGS DRM_IOWR(DRM_COMMAND_BASE + DRM_TEGRA_GEM_SET_FLAGS, struct drm_tegra_gem_set_flags)
 #define DRM_IOCTL_TEGRA_GEM_GET_FLAGS DRM_IOWR(DRM_COMMAND_BASE + DRM_TEGRA_GEM_GET_FLAGS, struct drm_tegra_gem_get_flags)
 #ifdef __cplusplus
+}
 #endif
 #endif
diff --git a/libc/kernel/uapi/drm/v3d_drm.h b/libc/kernel/uapi/drm/v3d_drm.h
index c3e58cb..8865911 100644
--- a/libc/kernel/uapi/drm/v3d_drm.h
+++ b/libc/kernel/uapi/drm/v3d_drm.h
@@ -20,6 +20,7 @@
 #define _V3D_DRM_H_
 #include "drm.h"
 #ifdef __cplusplus
+extern "C" {
 #endif
 #define DRM_V3D_SUBMIT_CL 0x00
 #define DRM_V3D_WAIT_BO 0x01
@@ -83,5 +84,6 @@
   __u32 offset;
 };
 #ifdef __cplusplus
+}
 #endif
 #endif
diff --git a/libc/kernel/uapi/drm/vc4_drm.h b/libc/kernel/uapi/drm/vc4_drm.h
index 29eb872..fde443f 100644
--- a/libc/kernel/uapi/drm/vc4_drm.h
+++ b/libc/kernel/uapi/drm/vc4_drm.h
@@ -20,6 +20,7 @@
 #define _UAPI_VC4_DRM_H_
 #include "drm.h"
 #ifdef __cplusplus
+extern "C" {
 #endif
 #define DRM_VC4_SUBMIT_CL 0x00
 #define DRM_VC4_WAIT_SEQNO 0x01
@@ -233,5 +234,6 @@
   __u64 values_ptr;
 };
 #ifdef __cplusplus
+}
 #endif
 #endif
diff --git a/libc/kernel/uapi/drm/vgem_drm.h b/libc/kernel/uapi/drm/vgem_drm.h
index 7b0ebc9..b33452b 100644
--- a/libc/kernel/uapi/drm/vgem_drm.h
+++ b/libc/kernel/uapi/drm/vgem_drm.h
@@ -20,6 +20,7 @@
 #define _UAPI_VGEM_DRM_H_
 #include "drm.h"
 #ifdef __cplusplus
+extern "C" {
 #endif
 #define DRM_VGEM_FENCE_ATTACH 0x1
 #define DRM_VGEM_FENCE_SIGNAL 0x2
@@ -37,5 +38,6 @@
   __u32 flags;
 };
 #ifdef __cplusplus
+}
 #endif
 #endif
diff --git a/libc/kernel/uapi/drm/via_drm.h b/libc/kernel/uapi/drm/via_drm.h
index fd4948d..9ef645a 100644
--- a/libc/kernel/uapi/drm/via_drm.h
+++ b/libc/kernel/uapi/drm/via_drm.h
@@ -20,6 +20,7 @@
 #define _VIA_DRM_H_
 #include "drm.h"
 #ifdef __cplusplus
+extern "C" {
 #endif
 #ifndef _VIA_DEFINES_
 #define _VIA_DEFINES_
@@ -196,5 +197,6 @@
   drm_via_blitsync_t sync;
 } drm_via_dmablit_t;
 #ifdef __cplusplus
+}
 #endif
 #endif
diff --git a/libc/kernel/uapi/drm/virtgpu_drm.h b/libc/kernel/uapi/drm/virtgpu_drm.h
index 6b7fb0b..84986e4 100644
--- a/libc/kernel/uapi/drm/virtgpu_drm.h
+++ b/libc/kernel/uapi/drm/virtgpu_drm.h
@@ -20,6 +20,7 @@
 #define VIRTGPU_DRM_H
 #include "drm.h"
 #ifdef __cplusplus
+extern "C" {
 #endif
 #define DRM_VIRTGPU_MAP 0x01
 #define DRM_VIRTGPU_EXECBUFFER 0x02
@@ -113,5 +114,6 @@
 #define DRM_IOCTL_VIRTGPU_WAIT DRM_IOWR(DRM_COMMAND_BASE + DRM_VIRTGPU_WAIT, struct drm_virtgpu_3d_wait)
 #define DRM_IOCTL_VIRTGPU_GET_CAPS DRM_IOWR(DRM_COMMAND_BASE + DRM_VIRTGPU_GET_CAPS, struct drm_virtgpu_get_caps)
 #ifdef __cplusplus
+}
 #endif
 #endif
diff --git a/libc/kernel/uapi/drm/vmwgfx_drm.h b/libc/kernel/uapi/drm/vmwgfx_drm.h
index 7df722a..bb1f36d 100644
--- a/libc/kernel/uapi/drm/vmwgfx_drm.h
+++ b/libc/kernel/uapi/drm/vmwgfx_drm.h
@@ -20,6 +20,7 @@
 #define __VMWGFX_DRM_H__
 #include "drm.h"
 #ifdef __cplusplus
+extern "C" {
 #endif
 #define DRM_VMW_MAX_SURFACE_FACES 6
 #define DRM_VMW_MAX_MIP_LEVELS 24
@@ -350,5 +351,6 @@
   struct drm_vmw_surface_arg req;
 };
 #ifdef __cplusplus
+}
 #endif
 #endif
diff --git a/libc/kernel/uapi/linux/nilfs2_api.h b/libc/kernel/uapi/linux/nilfs2_api.h
index 2f2692e..d6a6b8f 100644
--- a/libc/kernel/uapi/linux/nilfs2_api.h
+++ b/libc/kernel/uapi/linux/nilfs2_api.h
@@ -39,6 +39,16 @@
 #define NILFS_CPINFO_FNS(flag,name) static inline int nilfs_cpinfo_ ##name(const struct nilfs_cpinfo * cpinfo) \
 { return ! ! (cpinfo->ci_flags & (1UL << NILFS_CPINFO_ ##flag)); \
 }
+struct nilfs_suinfo {
+  __u64 sui_lastmod;
+  __u32 sui_nblocks;
+  __u32 sui_flags;
+};
+enum {
+  NILFS_SUINFO_ACTIVE,
+  NILFS_SUINFO_DIRTY,
+  NILFS_SUINFO_ERROR,
+};
 #define NILFS_SUINFO_FNS(flag,name) static inline int nilfs_suinfo_ ##name(const struct nilfs_suinfo * si) \
 { return si->sui_flags & (1UL << NILFS_SUINFO_ ##flag); \
 }
@@ -61,6 +71,15 @@
 } static inline int nilfs_suinfo_update_ ##name(const struct nilfs_suinfo_update * sup) \
 { return ! ! (sup->sup_flags & (1UL << NILFS_SUINFO_UPDATE_ ##flag)); \
 }
+enum {
+  NILFS_CHECKPOINT,
+  NILFS_SNAPSHOT,
+};
+struct nilfs_cpmode {
+  __u64 cm_cno;
+  __u32 cm_mode;
+  __u32 cm_pad;
+};
 struct nilfs_argv {
   __u64 v_base;
   __u32 v_nmembs;
diff --git a/libc/kernel/uapi/linux/nilfs2_ondisk.h b/libc/kernel/uapi/linux/nilfs2_ondisk.h
index d70b75f..e9995a1 100644
--- a/libc/kernel/uapi/linux/nilfs2_ondisk.h
+++ b/libc/kernel/uapi/linux/nilfs2_ondisk.h
@@ -254,6 +254,11 @@
 } static inline int nilfs_checkpoint_ ##name(const struct nilfs_checkpoint * cp) \
 { return ! ! (le32_to_cpu(cp->cp_flags) & (1UL << NILFS_CHECKPOINT_ ##flag)); \
 }
+struct nilfs_cpfile_header {
+  __le64 ch_ncheckpoints;
+  __le64 ch_nsnapshots;
+  struct nilfs_snapshot_list ch_snapshot_list;
+};
 #define NILFS_CPFILE_FIRST_CHECKPOINT_OFFSET ((sizeof(struct nilfs_cpfile_header) + sizeof(struct nilfs_checkpoint) - 1) / sizeof(struct nilfs_checkpoint))
 struct nilfs_segment_usage {
   __le64 su_lastmod;