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-rw-r--r--include/linux/exportfs.h26
1 files changed, 2 insertions, 24 deletions
diff --git a/include/linux/exportfs.h b/include/linux/exportfs.h
index 0b4a771b4903..51d214138814 100644
--- a/include/linux/exportfs.h
+++ b/include/linux/exportfs.h
@@ -55,30 +55,8 @@ struct fid {
55 * @get_parent: find the parent of a given directory 55 * @get_parent: find the parent of a given directory
56 * @get_dentry: find a dentry for the inode given a file handle sub-fragment 56 * @get_dentry: find a dentry for the inode given a file handle sub-fragment
57 * 57 *
58 * Description: 58 * See Documentation/filesystems/Exporting for details on how to use
59 * The export_operations structure provides a means for nfsd to communicate 59 * this interface correctly.
60 * with a particular exported file system - particularly enabling nfsd and
61 * the filesystem to co-operate when dealing with file handles.
62 *
63 * export_operations contains two basic operation for dealing with file
64 * handles, decode_fh() and encode_fh(), and allows for some other
65 * operations to be defined which standard helper routines use to get
66 * specific information from the filesystem.
67 *
68 * nfsd encodes information use to determine which filesystem a filehandle
69 * applies to in the initial part of the file handle. The remainder, termed
70 * a file handle fragment, is controlled completely by the filesystem. The
71 * standard helper routines assume that this fragment will contain one or
72 * two sub-fragments, one which identifies the file, and one which may be
73 * used to identify the (a) directory containing the file.
74 *
75 * In some situations, nfsd needs to get a dentry which is connected into a
76 * specific part of the file tree. To allow for this, it passes the
77 * function acceptable() together with a @context which can be used to see
78 * if the dentry is acceptable. As there can be multiple dentrys for a
79 * given file, the filesystem should check each one for acceptability before
80 * looking for the next. As soon as an acceptable one is found, it should
81 * be returned.
82 * 60 *
83 * encode_fh: 61 * encode_fh:
84 * @encode_fh should store in the file handle fragment @fh (using at most 62 * @encode_fh should store in the file handle fragment @fh (using at most