diff --git a/libc/kernel/uapi/linux/jffs2.h b/libc/kernel/uapi/linux/jffs2.h
new file mode 100644
index 0000000..da3ce82
--- /dev/null
+++ b/libc/kernel/uapi/linux/jffs2.h
@@ -0,0 +1,206 @@
+/****************************************************************************
+ ****************************************************************************
+ ***
+ ***   This header was automatically generated from a Linux kernel header
+ ***   of the same name, to make information necessary for userspace to
+ ***   call into the kernel available to libc.  It contains only constants,
+ ***   structures, and macros generated from the original header, and thus,
+ ***   contains no copyrightable information.
+ ***
+ ***   To edit the content of this header, modify the corresponding
+ ***   source file (e.g. under external/kernel-headers/original/) then
+ ***   run bionic/libc/kernel/tools/update_all.py
+ ***
+ ***   Any manual change here will be lost the next time this script will
+ ***   be run. You've been warned!
+ ***
+ ****************************************************************************
+ ****************************************************************************/
+#ifndef __LINUX_JFFS2_H__
+#define __LINUX_JFFS2_H__
+#include <linux/types.h>
+#include <linux/magic.h>
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define JFFS2_OLD_MAGIC_BITMASK 0x1984
+#define JFFS2_MAGIC_BITMASK 0x1985
+#define KSAMTIB_CIGAM_2SFFJ 0x8519
+#define JFFS2_EMPTY_BITMASK 0xffff
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define JFFS2_DIRTY_BITMASK 0x0000
+#define JFFS2_SUM_MAGIC 0x02851885
+#define JFFS2_MAX_NAME_LEN 254
+#define JFFS2_MIN_DATA_LEN 128
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define JFFS2_COMPR_NONE 0x00
+#define JFFS2_COMPR_ZERO 0x01
+#define JFFS2_COMPR_RTIME 0x02
+#define JFFS2_COMPR_RUBINMIPS 0x03
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define JFFS2_COMPR_COPY 0x04
+#define JFFS2_COMPR_DYNRUBIN 0x05
+#define JFFS2_COMPR_ZLIB 0x06
+#define JFFS2_COMPR_LZO 0x07
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define JFFS2_COMPAT_MASK 0xc000
+#define JFFS2_NODE_ACCURATE 0x2000
+#define JFFS2_FEATURE_INCOMPAT 0xc000
+#define JFFS2_FEATURE_ROCOMPAT 0x8000
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define JFFS2_FEATURE_RWCOMPAT_COPY 0x4000
+#define JFFS2_FEATURE_RWCOMPAT_DELETE 0x0000
+#define JFFS2_NODETYPE_DIRENT (JFFS2_FEATURE_INCOMPAT | JFFS2_NODE_ACCURATE | 1)
+#define JFFS2_NODETYPE_INODE (JFFS2_FEATURE_INCOMPAT | JFFS2_NODE_ACCURATE | 2)
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define JFFS2_NODETYPE_CLEANMARKER (JFFS2_FEATURE_RWCOMPAT_DELETE | JFFS2_NODE_ACCURATE | 3)
+#define JFFS2_NODETYPE_PADDING (JFFS2_FEATURE_RWCOMPAT_DELETE | JFFS2_NODE_ACCURATE | 4)
+#define JFFS2_NODETYPE_SUMMARY (JFFS2_FEATURE_RWCOMPAT_DELETE | JFFS2_NODE_ACCURATE | 6)
+#define JFFS2_NODETYPE_XATTR (JFFS2_FEATURE_INCOMPAT | JFFS2_NODE_ACCURATE | 8)
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define JFFS2_NODETYPE_XREF (JFFS2_FEATURE_INCOMPAT | JFFS2_NODE_ACCURATE | 9)
+#define JFFS2_XPREFIX_USER 1
+#define JFFS2_XPREFIX_SECURITY 2
+#define JFFS2_XPREFIX_ACL_ACCESS 3
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define JFFS2_XPREFIX_ACL_DEFAULT 4
+#define JFFS2_XPREFIX_TRUSTED 5
+#define JFFS2_ACL_VERSION 0x0001
+#define JFFS2_INO_FLAG_PREREAD 1
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define JFFS2_INO_FLAG_USERCOMPR 2
+typedef struct {
+ __u32 v32;
+} __attribute__((packed)) jint32_t;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+typedef struct {
+ __u32 m;
+} __attribute__((packed)) jmode_t;
+typedef struct {
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+ __u16 v16;
+} __attribute__((packed)) jint16_t;
+struct jffs2_unknown_node
+{
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+ jint16_t magic;
+ jint16_t nodetype;
+ jint32_t totlen;
+ jint32_t hdr_crc;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+};
+struct jffs2_raw_dirent
+{
+ jint16_t magic;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+ jint16_t nodetype;
+ jint32_t totlen;
+ jint32_t hdr_crc;
+ jint32_t pino;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+ jint32_t version;
+ jint32_t ino;
+ jint32_t mctime;
+ __u8 nsize;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+ __u8 type;
+ __u8 unused[2];
+ jint32_t node_crc;
+ jint32_t name_crc;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+ __u8 name[0];
+};
+struct jffs2_raw_inode
+{
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+ jint16_t magic;
+ jint16_t nodetype;
+ jint32_t totlen;
+ jint32_t hdr_crc;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+ jint32_t ino;
+ jint32_t version;
+ jmode_t mode;
+ jint16_t uid;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+ jint16_t gid;
+ jint32_t isize;
+ jint32_t atime;
+ jint32_t mtime;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+ jint32_t ctime;
+ jint32_t offset;
+ jint32_t csize;
+ jint32_t dsize;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+ __u8 compr;
+ __u8 usercompr;
+ jint16_t flags;
+ jint32_t data_crc;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+ jint32_t node_crc;
+ __u8 data[0];
+};
+struct jffs2_raw_xattr {
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+ jint16_t magic;
+ jint16_t nodetype;
+ jint32_t totlen;
+ jint32_t hdr_crc;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+ jint32_t xid;
+ jint32_t version;
+ __u8 xprefix;
+ __u8 name_len;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+ jint16_t value_len;
+ jint32_t data_crc;
+ jint32_t node_crc;
+ __u8 data[0];
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+} __attribute__((packed));
+struct jffs2_raw_xref
+{
+ jint16_t magic;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+ jint16_t nodetype;
+ jint32_t totlen;
+ jint32_t hdr_crc;
+ jint32_t ino;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+ jint32_t xid;
+ jint32_t xseqno;
+ jint32_t node_crc;
+} __attribute__((packed));
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+struct jffs2_raw_summary
+{
+ jint16_t magic;
+ jint16_t nodetype;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+ jint32_t totlen;
+ jint32_t hdr_crc;
+ jint32_t sum_num;
+ jint32_t cln_mkr;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+ jint32_t padded;
+ jint32_t sum_crc;
+ jint32_t node_crc;
+ jint32_t sum[0];
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+};
+union jffs2_node_union
+{
+ struct jffs2_raw_inode i;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+ struct jffs2_raw_dirent d;
+ struct jffs2_raw_xattr x;
+ struct jffs2_raw_xref r;
+ struct jffs2_raw_summary s;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+ struct jffs2_unknown_node u;
+};
+union jffs2_device_node {
+ jint16_t old_id;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+ jint32_t new_id;
+};
+#endif