20 files changed, 140 insertions, 113 deletions
diff --git a/fs/cifs/export.c b/fs/cifs/export.c
index 1d716392c3aa..96df1d51fdc3 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 e0a6839e68ae..67338d622f56 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 e98f6cd7200c..16287af34859 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 b2efd9083b9b..3eefa97fe204 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 51d1c456cdab..4f84dc86628a 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 d0d8c76c7edb..b806e689c4aa 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 cfaf5877d98b..0a7ddb39a593 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 99ea5659bc2c..b8312edee0e4 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 efe2872cd4e3..a07e67b1ea7f 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 20e4ac1c79a3..49b652bd96ba 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 79bd03b8bbf8..c518421a9355 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 6ca2d24fc216..0108d3ec1c27 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 bff01a54675a..e93c6142b23c 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 5b77ee7866ef..e08bed9e45a0 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 1272d11399fb..ddde489f1cb2 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 b4ac9119200e..5a93cfe1a032 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 33dd1ca13245..201cc3273c84 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 000000000000..fdc306fbba50
--- /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 aa74f7de9dcd..58ce336d4a6b 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 e49181d9d893..96fa79fb6ad3 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>