Documentation: get rid of write_super

The '->write_super' superblock method is gone, and this patch removes all the
references to 'write_super' from various pieces of the kernel documentation.

Cc: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/Documentation/DocBook/filesystems.tmpl b/Documentation/DocBook/filesystems.tmpl
index 3fca32c..25b58ef 100644
--- a/Documentation/DocBook/filesystems.tmpl
+++ b/Documentation/DocBook/filesystems.tmpl
@@ -224,8 +224,8 @@
 </para>
 
 <para>
-Then at umount time , in your put_super() (2.4) or write_super() (2.5)
-you can then call journal_destroy() to clean up your in-core journal object.
+Then at umount time , in your put_super() you can then call journal_destroy()
+to clean up your in-core journal object.
 </para>
 
 <para>
diff --git a/Documentation/filesystems/Locking b/Documentation/filesystems/Locking
index 0f103e3..e540a24 100644
--- a/Documentation/filesystems/Locking
+++ b/Documentation/filesystems/Locking
@@ -114,7 +114,6 @@
 	int (*drop_inode) (struct inode *);
 	void (*evict_inode) (struct inode *);
 	void (*put_super) (struct super_block *);
-	void (*write_super) (struct super_block *);
 	int (*sync_fs)(struct super_block *sb, int wait);
 	int (*freeze_fs) (struct super_block *);
 	int (*unfreeze_fs) (struct super_block *);
@@ -136,7 +135,6 @@
 drop_inode:				!!!inode->i_lock!!!
 evict_inode:
 put_super:		write
-write_super:		read
 sync_fs:		read
 freeze_fs:		write
 unfreeze_fs:		write
diff --git a/Documentation/filesystems/porting b/Documentation/filesystems/porting
index 2bef2b3..0742fee 100644
--- a/Documentation/filesystems/porting
+++ b/Documentation/filesystems/porting
@@ -94,9 +94,8 @@
 ---
 [mandatory]
 
-BKL is also moved from around sb operations.  ->write_super() Is now called 
-without BKL held.  BKL should have been shifted into individual fs sb_op
-functions.  If you don't need it, remove it.  
+BKL is also moved from around sb operations. BKL should have been shifted into
+individual fs sb_op functions.  If you don't need it, remove it.
 
 ---
 [informational]
diff --git a/Documentation/filesystems/vfs.txt b/Documentation/filesystems/vfs.txt
index 065aa2d..2ee133e 100644
--- a/Documentation/filesystems/vfs.txt
+++ b/Documentation/filesystems/vfs.txt
@@ -216,7 +216,6 @@
         void (*drop_inode) (struct inode *);
         void (*delete_inode) (struct inode *);
         void (*put_super) (struct super_block *);
-        void (*write_super) (struct super_block *);
         int (*sync_fs)(struct super_block *sb, int wait);
         int (*freeze_fs) (struct super_block *);
         int (*unfreeze_fs) (struct super_block *);
@@ -273,9 +272,6 @@
   put_super: called when the VFS wishes to free the superblock
 	(i.e. unmount). This is called with the superblock lock held
 
-  write_super: called when the VFS superblock needs to be written to
-	disc. This method is optional
-
   sync_fs: called when VFS is writing out all dirty data associated with
   	a superblock. The second parameter indicates whether the method
 	should wait until the write out has been completed. Optional.