[AFS]: Add "directory write" support.

Add support for the create, link, symlink, unlink, mkdir, rmdir and
rename VFS operations to the in-kernel AFS filesystem.

Also:

 (1) Fix dentry and inode revalidation.  d_revalidate should only look at
     state of the dentry.  Revalidation of the contents of an inode pointed to
     by a dentry is now separate.

 (2) Fix afs_lookup() to hash negative dentries as well as positive ones.

Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 9 insertions, 2 deletions

diff --git a/fs/afs/afs_fs.h b/fs/afs/afs_fs.h
index fd385954f21f..89e0d1650a72 100644
--- a/fs/afs/afs_fs.h
+++ b/fs/afs/afs_fs.h
@@ -16,12 +16,19 @@
 #define FS_SERVICE              1       /* AFS File Service ID */
 
 enum AFS_FS_Operations {
-        FSFETCHSTATUS           = 132,  /* AFS Fetch file status */
         FSFETCHDATA             = 130,  /* AFS Fetch file data */
+        FSFETCHSTATUS           = 132,  /* AFS Fetch file status */
+        FSREMOVEFILE            = 136,  /* AFS Remove a file */
+        FSCREATEFILE            = 137,  /* AFS Create a file */
+        FSRENAME                = 138,  /* AFS Rename or move a file or directory */
+        FSSYMLINK               = 139,  /* AFS Create a symbolic link */
+        FSLINK                  = 140,  /* AFS Create a hard link */
+        FSMAKEDIR               = 141,  /* AFS Create a directory */
+        FSREMOVEDIR             = 142,  /* AFS Remove a directory */
         FSGIVEUPCALLBACKS       = 147,  /* AFS Discard callback promises */
         FSGETVOLUMEINFO         = 148,  /* AFS Get root volume information */
         FSGETROOTVOLUME         = 151,  /* AFS Get root volume name */
-        FSLOOKUP                = 161   /* AFS lookup file in directory */
+        FSLOOKUP                = 161,  /* AFS lookup file in directory */
 };
 
 enum AFS_FS_Errors {