diff --git a/fs/cifs/export.c b/fs/cifs/export.c
index 1d716392c3aa02dd6fa7bf83003b08e1b8d02687..96df1d51fdc367f509a332fc6dae4629c42cde93 100644
--- a/fs/cifs/export.c
+++ b/fs/cifs/export.c
@@ -29,6 +29,7 @@
*/
#include <linux/fs.h>
+#include <linux/exportfs.h>
#ifdef CONFIG_CIFS_EXPERIMENTAL
diff --git a/fs/efs/super.c b/fs/efs/super.c
index e0a6839e68ae0f53f762a5f4aed8466b6d1d98ff..67338d622f56c315e771cf040f7c8e6ff4736282 100644
--- a/fs/efs/super.c
+++ b/fs/efs/super.c
@@ -11,6 +11,7 @@
#include <linux/efs_fs.h>
#include <linux/efs_vh.h>
#include <linux/efs_fs_sb.h>
+#include <linux/exportfs.h>
#include <linux/slab.h>
#include <linux/buffer_head.h>
#include <linux/vfs.h>
diff --git a/fs/exportfs/expfs.c b/fs/exportfs/expfs.c
index e98f6cd7200cd65fd709bf7ba4339a3e4f977216..16287af34859689768f3ac9a22ea734e103fede7 100644
--- a/fs/exportfs/expfs.c
+++ b/fs/exportfs/expfs.c
@@ -1,4 +1,5 @@
+#include <linux/exportfs.h>
#include <linux/fs.h>
#include <linux/file.h>
#include <linux/module.h>
diff --git a/fs/ext2/super.c b/fs/ext2/super.c
index b2efd9083b9bbe5c7c598a07f3b235208f22c511..3eefa97fe204d7e8a359e5efaedf0f9c977cb5c6 100644
--- a/fs/ext2/super.c
+++ b/fs/ext2/super.c
@@ -25,6 +25,7 @@
#include <linux/parser.h>
#include <linux/random.h>
#include <linux/buffer_head.h>
+#include <linux/exportfs.h>
#include <linux/smp_lock.h>
#include <linux/vfs.h>
#include <linux/seq_file.h>
diff --git a/fs/ext3/super.c b/fs/ext3/super.c
index 51d1c456cdab00aa446e0e2206427635dbb51f97..4f84dc86628aeeb96706fc11c844442ff9b875f2 100644
--- a/fs/ext3/super.c
+++ b/fs/ext3/super.c
@@ -29,6 +29,7 @@
#include <linux/parser.h>
#include <linux/smp_lock.h>
#include <linux/buffer_head.h>
+#include <linux/exportfs.h>
#include <linux/vfs.h>
#include <linux/random.h>
#include <linux/mount.h>
diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index d0d8c76c7edb0ed55a7f4d11ea2595b61e94c049..b806e689c4aaead29f46af349e0b957dbed4113b 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -29,6 +29,7 @@
#include <linux/parser.h>
#include <linux/smp_lock.h>
#include <linux/buffer_head.h>
+#include <linux/exportfs.h>
#include <linux/vfs.h>
#include <linux/random.h>
#include <linux/mount.h>
diff --git a/fs/fat/inode.c b/fs/fat/inode.c
index cfaf5877d98bf2da19fa54f1f487a1288ce18c61..0a7ddb39a593f295c6148a243d6109bb95ba3730 100644
--- a/fs/fat/inode.c
+++ b/fs/fat/inode.c
@@ -20,6 +20,7 @@
#include <linux/pagemap.h>
#include <linux/mpage.h>
#include <linux/buffer_head.h>
+#include <linux/exportfs.h>
#include <linux/mount.h>
#include <linux/vfs.h>
#include <linux/parser.h>
diff --git a/fs/gfs2/ops_export.c b/fs/gfs2/ops_export.c
index 99ea5659bc2c58a5a41f482043ef25db8b6284ea..b8312edee0e45dc89787f042b350c679e85a6ac6 100644
--- a/fs/gfs2/ops_export.c
+++ b/fs/gfs2/ops_export.c
@@ -11,6 +11,7 @@
#include <linux/spinlock.h>
#include <linux/completion.h>
#include <linux/buffer_head.h>
+#include <linux/exportfs.h>
#include <linux/gfs2_ondisk.h>
#include <linux/crc32.h>
#include <linux/lm_interface.h>
diff --git a/fs/isofs/isofs.h b/fs/isofs/isofs.h
index efe2872cd4e3179067073e98ac6a296776c38117..a07e67b1ea7fb4b6e49f375d6a71c1b5ec879c16 100644
--- a/fs/isofs/isofs.h
+++ b/fs/isofs/isofs.h
@@ -1,5 +1,6 @@
#include <linux/fs.h>
#include <linux/buffer_head.h>
+#include <linux/exportfs.h>
#include <linux/iso_fs.h>
#include <asm/unaligned.h>
diff --git a/fs/jfs/super.c b/fs/jfs/super.c
index 20e4ac1c79a3ca2943be23d903f5f0ad8236fbbe..49b652bd96baeb08217a15821e6814692a1bed37 100644
--- a/fs/jfs/super.c
+++ b/fs/jfs/super.c
@@ -27,6 +27,7 @@
#include <linux/kthread.h>
#include <linux/posix_acl.h>
#include <linux/buffer_head.h>
+#include <linux/exportfs.h>
#include <asm/uaccess.h>
#include <linux/seq_file.h>
diff --git a/fs/nfsd/export.c b/fs/nfsd/export.c
index 79bd03b8bbf868e7638b1e85f90977b7727c88e6..c518421a9355fd93e4816f4056db7ebc08e25e1f 100644
--- a/fs/nfsd/export.c
+++ b/fs/nfsd/export.c
@@ -26,6 +26,7 @@
#include <linux/mount.h>
#include <linux/hash.h>
#include <linux/module.h>
+#include <linux/exportfs.h>
#include <linux/sunrpc/svc.h>
#include <linux/nfsd/nfsd.h>
diff --git a/fs/nfsd/nfsfh.c b/fs/nfsd/nfsfh.c
index 6ca2d24fc216d6cf5ccf6f293955b0ad27accb73..0108d3ec1c27e7eed6433286bd5b3f86714539e2 100644
--- a/fs/nfsd/nfsfh.c
+++ b/fs/nfsd/nfsfh.c
@@ -15,6 +15,7 @@
#include <linux/string.h>
#include <linux/stat.h>
#include <linux/dcache.h>
+#include <linux/exportfs.h>
#include <linux/mount.h>
#include <linux/sunrpc/clnt.h>
diff --git a/fs/ntfs/namei.c b/fs/ntfs/namei.c
index bff01a54675ae1e04cbaa3d39648239cec11055b..e93c6142b23c9554932342129ef5a6e35eb8b90a 100644
--- a/fs/ntfs/namei.c
+++ b/fs/ntfs/namei.c
@@ -21,6 +21,7 @@
*/
#include <linux/dcache.h>
+#include <linux/exportfs.h>
#include <linux/security.h>
#include "attrib.h"
diff --git a/fs/ocfs2/export.h b/fs/ocfs2/export.h
index 5b77ee7866ef1ce30557f49f9861d191d6f07ff5..e08bed9e45a09a2c5dfe9aba7d834d9f85c541e3 100644
--- a/fs/ocfs2/export.h
+++ b/fs/ocfs2/export.h
@@ -26,6 +26,8 @@
#ifndef OCFS2_EXPORT_H
#define OCFS2_EXPORT_H
+#include <linux/exportfs.h>
+
extern struct export_operations ocfs2_export_ops;
#endif /* OCFS2_EXPORT_H */
diff --git a/fs/reiserfs/inode.c b/fs/reiserfs/inode.c
index 1272d11399fb26509f60eef52561b12002a8ecee..ddde489f1cb2d3bc65b606eb6415a31925160700 100644
--- a/fs/reiserfs/inode.c
+++ b/fs/reiserfs/inode.c
@@ -7,6 +7,7 @@
#include <linux/reiserfs_fs.h>
#include <linux/reiserfs_acl.h>
#include <linux/reiserfs_xattr.h>
+#include <linux/exportfs.h>
#include <linux/smp_lock.h>
#include <linux/pagemap.h>
#include <linux/highmem.h>
diff --git a/fs/reiserfs/super.c b/fs/reiserfs/super.c
index b4ac9119200e6bbba5e6cd086139c8d4dbcae476..5a93cfe1a0326eba2ef8872f67ae72eedbdf5f0a 100644
--- a/fs/reiserfs/super.c
+++ b/fs/reiserfs/super.c
@@ -21,6 +21,7 @@
#include <linux/init.h>
#include <linux/blkdev.h>
#include <linux/buffer_head.h>
+#include <linux/exportfs.h>
#include <linux/vfs.h>
#include <linux/mnt_namespace.h>
#include <linux/mount.h>
diff --git a/fs/xfs/linux-2.6/xfs_super.h b/fs/xfs/linux-2.6/xfs_super.h
index 33dd1ca13245544b154e67bc2324b72ff5393571..201cc3273c84da38ec921e35b115a1505d8678f4 100644
--- a/fs/xfs/linux-2.6/xfs_super.h
+++ b/fs/xfs/linux-2.6/xfs_super.h
@@ -18,6 +18,8 @@
#ifndef __XFS_SUPER_H__
#define __XFS_SUPER_H__
+#include <linux/exportfs.h>
+
#ifdef CONFIG_XFS_DMAPI
# define vfs_insertdmapi(vfs) vfs_insertops(vfsp, &xfs_dmops)
# define vfs_initdmapi() dmapi_init()
diff --git a/include/linux/exportfs.h b/include/linux/exportfs.h
new file mode 100644
index 0000000000000000000000000000000000000000..fdc306fbba5070d34611fe5ca6557fb4255f8ba1
--- /dev/null
+++ b/include/linux/exportfs.h
@@ -0,0 +1,119 @@
+#ifndef LINUX_EXPORTFS_H
+#define LINUX_EXPORTFS_H 1
+
+#include <linux/types.h>
+
+struct dentry;
+struct super_block;
+
+
+/**
+ * struct export_operations - for nfsd to communicate with file systems
+ * @decode_fh: decode a file handle fragment and return a &struct dentry
+ * @encode_fh: encode a file handle fragment from a dentry
+ * @get_name: find the name for a given inode in a given directory
+ * @get_parent: find the parent of a given directory
+ * @get_dentry: find a dentry for the inode given a file handle sub-fragment
+ * @find_exported_dentry:
+ * set by the exporting module to a standard helper function.
+ *
+ * Description:
+ * The export_operations structure provides a means for nfsd to communicate
+ * with a particular exported file system - particularly enabling nfsd and
+ * the filesystem to co-operate when dealing with file handles.
+ *
+ * export_operations contains two basic operation for dealing with file
+ * handles, decode_fh() and encode_fh(), and allows for some other
+ * operations to be defined which standard helper routines use to get
+ * specific information from the filesystem.
+ *
+ * nfsd encodes information use to determine which filesystem a filehandle
+ * applies to in the initial part of the file handle. The remainder, termed
+ * a file handle fragment, is controlled completely by the filesystem. The
+ * standard helper routines assume that this fragment will contain one or
+ * two sub-fragments, one which identifies the file, and one which may be
+ * used to identify the (a) directory containing the file.
+ *
+ * In some situations, nfsd needs to get a dentry which is connected into a
+ * specific part of the file tree. To allow for this, it passes the
+ * function acceptable() together with a @context which can be used to see
+ * if the dentry is acceptable. As there can be multiple dentrys for a
+ * given file, the filesystem should check each one for acceptability before
+ * looking for the next. As soon as an acceptable one is found, it should
+ * be returned.
+ *
+ * decode_fh:
+ * @decode_fh is given a &struct super_block (@sb), a file handle fragment
+ * (@fh, @fh_len) and an acceptability testing function (@acceptable,
+ * @context). It should return a &struct dentry which refers to the same
+ * file that the file handle fragment refers to, and which passes the
+ * acceptability test. If it cannot, it should return a %NULL pointer if
+ * the file was found but no acceptable &dentries were available, or a
+ * %ERR_PTR error code indicating why it couldn't be found (e.g. %ENOENT or
+ * %ENOMEM).
+ *
+ * encode_fh:
+ * @encode_fh should store in the file handle fragment @fh (using at most
+ * @max_len bytes) information that can be used by @decode_fh to recover the
+ * file refered to by the &struct dentry @de. If the @connectable flag is
+ * set, the encode_fh() should store sufficient information so that a good
+ * attempt can be made to find not only the file but also it's place in the
+ * filesystem. This typically means storing a reference to de->d_parent in
+ * the filehandle fragment. encode_fh() should return the number of bytes
+ * stored or a negative error code such as %-ENOSPC
+ *
+ * get_name:
+ * @get_name should find a name for the given @child in the given @parent
+ * directory. The name should be stored in the @name (with the
+ * understanding that it is already pointing to a a %NAME_MAX+1 sized
+ * buffer. get_name() should return %0 on success, a negative error code
+ * or error. @get_name will be called without @parent->i_mutex held.
+ *
+ * get_parent:
+ * @get_parent should find the parent directory for the given @child which
+ * is also a directory. In the event that it cannot be found, or storage
+ * space cannot be allocated, a %ERR_PTR should be returned.
+ *
+ * get_dentry:
+ * Given a &super_block (@sb) and a pointer to a file-system specific inode
+ * identifier, possibly an inode number, (@inump) get_dentry() should find
+ * the identified inode and return a dentry for that inode. Any suitable
+ * dentry can be returned including, if necessary, a new dentry created with
+ * d_alloc_root. The caller can then find any other extant dentrys by
+ * following the d_alias links. If a new dentry was created using
+ * d_alloc_root, DCACHE_NFSD_DISCONNECTED should be set, and the dentry
+ * should be d_rehash()ed.
+ *
+ * If the inode cannot be found, either a %NULL pointer or an %ERR_PTR code
+ * can be returned. The @inump will be whatever was passed to
+ * nfsd_find_fh_dentry() in either the @obj or @parent parameters.
+ *
+ * Locking rules:
+ * get_parent is called with child->d_inode->i_mutex down
+ * get_name is not (which is possibly inconsistent)
+ */
+
+struct export_operations {
+ struct dentry *(*decode_fh)(struct super_block *sb, __u32 *fh,
+ int fh_len, int fh_type,
+ int (*acceptable)(void *context, struct dentry *de),
+ void *context);
+ int (*encode_fh)(struct dentry *de, __u32 *fh, int *max_len,
+ int connectable);
+ int (*get_name)(struct dentry *parent, char *name,
+ struct dentry *child);
+ struct dentry * (*get_parent)(struct dentry *child);
+ struct dentry * (*get_dentry)(struct super_block *sb, void *inump);
+
+ /* This is set by the exporting module to a standard helper */
+ struct dentry * (*find_exported_dentry)(
+ struct super_block *sb, void *obj, void *parent,
+ int (*acceptable)(void *context, struct dentry *de),
+ void *context);
+};
+
+extern struct dentry *find_exported_dentry(struct super_block *sb, void *obj,
+ void *parent, int (*acceptable)(void *context, struct dentry *de),
+ void *context);
+
+#endif /* LINUX_EXPORTFS_H */
diff --git a/include/linux/fs.h b/include/linux/fs.h
index aa74f7de9dcded60666b1e158ad3686220289148..58ce336d4a6b1c36fec8debf8f962cb10d1ccae9 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -289,6 +289,7 @@ extern int dir_notify_enable;
#include <asm/semaphore.h>
#include <asm/byteorder.h>
+struct export_operations;
struct hd_geometry;
struct iovec;
struct nameidata;
@@ -1278,119 +1279,6 @@ static inline void file_accessed(struct file *file)
int sync_inode(struct inode *inode, struct writeback_control *wbc);
-/**
- * struct export_operations - for nfsd to communicate with file systems
- * @decode_fh: decode a file handle fragment and return a &struct dentry
- * @encode_fh: encode a file handle fragment from a dentry
- * @get_name: find the name for a given inode in a given directory
- * @get_parent: find the parent of a given directory
- * @get_dentry: find a dentry for the inode given a file handle sub-fragment
- * @find_exported_dentry:
- * set by the exporting module to a standard helper function.
- *
- * Description:
- * The export_operations structure provides a means for nfsd to communicate
- * with a particular exported file system - particularly enabling nfsd and
- * the filesystem to co-operate when dealing with file handles.
- *
- * export_operations contains two basic operation for dealing with file
- * handles, decode_fh() and encode_fh(), and allows for some other
- * operations to be defined which standard helper routines use to get
- * specific information from the filesystem.
- *
- * nfsd encodes information use to determine which filesystem a filehandle
- * applies to in the initial part of the file handle. The remainder, termed
- * a file handle fragment, is controlled completely by the filesystem. The
- * standard helper routines assume that this fragment will contain one or
- * two sub-fragments, one which identifies the file, and one which may be
- * used to identify the (a) directory containing the file.
- *
- * In some situations, nfsd needs to get a dentry which is connected into a
- * specific part of the file tree. To allow for this, it passes the
- * function acceptable() together with a @context which can be used to see
- * if the dentry is acceptable. As there can be multiple dentrys for a
- * given file, the filesystem should check each one for acceptability before
- * looking for the next. As soon as an acceptable one is found, it should
- * be returned.
- *
- * decode_fh:
- * @decode_fh is given a &struct super_block (@sb), a file handle fragment
- * (@fh, @fh_len) and an acceptability testing function (@acceptable,
- * @context). It should return a &struct dentry which refers to the same
- * file that the file handle fragment refers to, and which passes the
- * acceptability test. If it cannot, it should return a %NULL pointer if
- * the file was found but no acceptable &dentries were available, or a
- * %ERR_PTR error code indicating why it couldn't be found (e.g. %ENOENT or
- * %ENOMEM).
- *
- * encode_fh:
- * @encode_fh should store in the file handle fragment @fh (using at most
- * @max_len bytes) information that can be used by @decode_fh to recover the
- * file refered to by the &struct dentry @de. If the @connectable flag is
- * set, the encode_fh() should store sufficient information so that a good
- * attempt can be made to find not only the file but also it's place in the
- * filesystem. This typically means storing a reference to de->d_parent in
- * the filehandle fragment. encode_fh() should return the number of bytes
- * stored or a negative error code such as %-ENOSPC
- *
- * get_name:
- * @get_name should find a name for the given @child in the given @parent
- * directory. The name should be stored in the @name (with the
- * understanding that it is already pointing to a a %NAME_MAX+1 sized
- * buffer. get_name() should return %0 on success, a negative error code
- * or error. @get_name will be called without @parent->i_mutex held.
- *
- * get_parent:
- * @get_parent should find the parent directory for the given @child which
- * is also a directory. In the event that it cannot be found, or storage
- * space cannot be allocated, a %ERR_PTR should be returned.
- *
- * get_dentry:
- * Given a &super_block (@sb) and a pointer to a file-system specific inode
- * identifier, possibly an inode number, (@inump) get_dentry() should find
- * the identified inode and return a dentry for that inode. Any suitable
- * dentry can be returned including, if necessary, a new dentry created with
- * d_alloc_root. The caller can then find any other extant dentrys by
- * following the d_alias links. If a new dentry was created using
- * d_alloc_root, DCACHE_NFSD_DISCONNECTED should be set, and the dentry
- * should be d_rehash()ed.
- *
- * If the inode cannot be found, either a %NULL pointer or an %ERR_PTR code
- * can be returned. The @inump will be whatever was passed to
- * nfsd_find_fh_dentry() in either the @obj or @parent parameters.
- *
- * Locking rules:
- * get_parent is called with child->d_inode->i_mutex down
- * get_name is not (which is possibly inconsistent)
- */
-
-struct export_operations {
- struct dentry *(*decode_fh)(struct super_block *sb, __u32 *fh, int fh_len, int fh_type,
- int (*acceptable)(void *context, struct dentry *de),
- void *context);
- int (*encode_fh)(struct dentry *de, __u32 *fh, int *max_len,
- int connectable);
-
- /* the following are only called from the filesystem itself */
- int (*get_name)(struct dentry *parent, char *name,
- struct dentry *child);
- struct dentry * (*get_parent)(struct dentry *child);
- struct dentry * (*get_dentry)(struct super_block *sb, void *inump);
-
- /* This is set by the exporting module to a standard helper */
- struct dentry * (*find_exported_dentry)(
- struct super_block *sb, void *obj, void *parent,
- int (*acceptable)(void *context, struct dentry *de),
- void *context);
-
-
-};
-
-extern struct dentry *
-find_exported_dentry(struct super_block *sb, void *obj, void *parent,
- int (*acceptable)(void *context, struct dentry *de),
- void *context);
-
struct file_system_type {
const char *name;
int fs_flags;
diff --git a/mm/shmem.c b/mm/shmem.c
index e49181d9d893734dade8f924ef599c0c7123e9cf..96fa79fb6ad37d483b816ec92804ecd2dfe0a825 100644
--- a/mm/shmem.c
+++ b/mm/shmem.c
@@ -27,6 +27,7 @@
#include <linux/init.h>
#include <linux/fs.h>
#include <linux/xattr.h>
+#include <linux/exportfs.h>
#include <linux/generic_acl.h>
#include <linux/mm.h>
#include <linux/mman.h>