udf: kill useless file header comments for vfs method implementations

There's not need to document vfs method invocation rules, we have
Documentation/filesystems/vfs.txt and Documentation/filesystems/Locking
for that.  Also a lot of these comments where either plain wrong or
horrible out of date.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jan Kara <jack@suse.cz>

5 files changed, 1 insertions, 178 deletions

diff --git a/fs/udf/dir.c b/fs/udf/dir.c
index 8d8643ada199..31feef916fb7 100644
--- a/fs/udf/dir.c
+++ b/fs/udf/dir.c
@@ -188,32 +188,6 @@ static int do_udf_readdir(struct inode *dir, struct file *filp,
         return 0;
 }
 
-/*
- * udf_readdir
- *
- * PURPOSE
- *      Read a directory entry.
- *
- * DESCRIPTION
- *      Optional - sys_getdents() will return -ENOTDIR if this routine is not
- *      available.
- *
- *      Refer to sys_getdents() in fs/readdir.c
- *      sys_getdents() -> .
- *
- * PRE-CONDITIONS
- *      filp                    Pointer to directory file.
- *      buf                     Pointer to directory entry buffer.
- *      filldir                 Pointer to filldir function.
- *
- * POST-CONDITIONS
- *      <return>                >=0 on success.
- *
- * HISTORY
- *      July 1, 1997 - Andrew E. Mileski
- *      Written, tested, and released.
- */
-
 static int udf_readdir(struct file *filp, void *dirent, filldir_t filldir)
 {
         struct inode *dir = filp->f_path.dentry->d_inode;
diff --git a/fs/udf/file.c b/fs/udf/file.c
index 97c71ae7c689..822cc4071527 100644
--- a/fs/udf/file.c
+++ b/fs/udf/file.c
@@ -144,40 +144,6 @@ static ssize_t udf_file_aio_write(struct kiocb *iocb, const struct iovec *iov,
         return retval;
 }
 
-/*
- * udf_ioctl
- *
- * PURPOSE
- *      Issue an ioctl.
- *
- * DESCRIPTION
- *      Optional - sys_ioctl() will return -ENOTTY if this routine is not
- *      available, and the ioctl cannot be handled without filesystem help.
- *
- *      sys_ioctl() handles these ioctls that apply only to regular files:
- *              FIBMAP [requires udf_block_map()], FIGETBSZ, FIONREAD
- *      These ioctls are also handled by sys_ioctl():
- *              FIOCLEX, FIONCLEX, FIONBIO, FIOASYNC
- *      All other ioctls are passed to the filesystem.
- *
- *      Refer to sys_ioctl() in fs/ioctl.c
- *      sys_ioctl() -> .
- *
- * PRE-CONDITIONS
- *      inode                   Pointer to inode that ioctl was issued on.
- *      filp                    Pointer to file that ioctl was issued on.
- *      cmd                     The ioctl command.
- *      arg                     The ioctl argument [can be interpreted as a
- *                              user-space pointer if desired].
- *
- * POST-CONDITIONS
- *      <return>                Success (>=0) or an error code (<=0) that
- *                              sys_ioctl() will return.
- *
- * HISTORY
- *      July 1, 1997 - Andrew E. Mileski
- *      Written, tested, and released.
- */
 int udf_ioctl(struct inode *inode, struct file *filp, unsigned int cmd,
               unsigned long arg)
 {
@@ -225,18 +191,6 @@ int udf_ioctl(struct inode *inode, struct file *filp, unsigned int cmd,
         return result;
 }
 
-/*
- * udf_release_file
- *
- * PURPOSE
- *  Called when all references to the file are closed
- *
- * DESCRIPTION
- *  Discard prealloced blocks
- *
- * HISTORY
- *
- */
 static int udf_release_file(struct inode *inode, struct file *filp)
 {
         if (filp->f_mode & FMODE_WRITE) {
diff --git a/fs/udf/inode.c b/fs/udf/inode.c
index 24cfa55d0fdc..dc2f946dfca9 100644
--- a/fs/udf/inode.c
+++ b/fs/udf/inode.c
@@ -66,22 +66,7 @@ static void udf_update_extents(struct inode *,
                                struct extent_position *);
 static int udf_get_block(struct inode *, sector_t, struct buffer_head *, int);
 
-/*
- * udf_delete_inode
- *
- * PURPOSE
- *      Clean-up before the specified inode is destroyed.
- *
- * DESCRIPTION
- *      This routine is called when the kernel destroys an inode structure
- *      ie. when iput() finds i_count == 0.
- *
- * HISTORY
- *      July 1, 1997 - Andrew E. Mileski
- *      Written, tested, and released.
- *
- *  Called at the last iput() if i_nlink is zero.
- */
+
 void udf_delete_inode(struct inode *inode)
 {
         truncate_inode_pages(&inode->i_data, 0);
@@ -1416,21 +1401,6 @@ static mode_t udf_convert_permissions(struct fileEntry *fe)
         return mode;
 }
 
-/*
- * udf_write_inode
- *
- * PURPOSE
- *      Write out the specified inode.
- *
- * DESCRIPTION
- *      This routine is called whenever an inode is synced.
- *      Currently this routine is just a placeholder.
- *
- * HISTORY
- *      July 1, 1997 - Andrew E. Mileski
- *      Written, tested, and released.
- */
-
 int udf_write_inode(struct inode *inode, int sync)
 {
         int ret;
diff --git a/fs/udf/namei.c b/fs/udf/namei.c
index 112a5fb0b27b..ac7f72779e93 100644
--- a/fs/udf/namei.c
+++ b/fs/udf/namei.c
@@ -251,39 +251,6 @@ static struct fileIdentDesc *udf_find_entry(struct inode *dir,
         return NULL;
 }
 
-/*
- * udf_lookup
- *
- * PURPOSE
- *      Look-up the inode for a given name.
- *
- * DESCRIPTION
- *      Required - lookup_dentry() will return -ENOTDIR if this routine is not
- *      available for a directory. The filesystem is useless if this routine is
- *      not available for at least the filesystem's root directory.
- *
- *      This routine is passed an incomplete dentry - it must be completed by
- *      calling d_add(dentry, inode). If the name does not exist, then the
- *      specified inode must be set to null. An error should only be returned
- *      when the lookup fails for a reason other than the name not existing.
- *      Note that the directory inode semaphore is held during the call.
- *
- *      Refer to lookup_dentry() in fs/namei.c
- *      lookup_dentry() -> lookup() -> real_lookup() -> .
- *
- * PRE-CONDITIONS
- *      dir                     Pointer to inode of parent directory.
- *      dentry                  Pointer to dentry to complete.
- *      nd                      Pointer to lookup nameidata
- *
- * POST-CONDITIONS
- *      <return>                Zero on success.
- *
- * HISTORY
- *      July 1, 1997 - Andrew E. Mileski
- *      Written, tested, and released.
- */
-
 static struct dentry *udf_lookup(struct inode *dir, struct dentry *dentry,
                                  struct nameidata *nd)
 {
diff --git a/fs/udf/super.c b/fs/udf/super.c
index 3723f04c0799..53e1d6e6dd31 100644
--- a/fs/udf/super.c
+++ b/fs/udf/super.c
@@ -1670,22 +1670,6 @@ static void udf_sb_free_bitmap(struct udf_bitmap *bitmap)
                 vfree(bitmap);
 }
 
-/*
- * udf_read_super
- *
- * PURPOSE
- *      Complete the specified super block.
- *
- * PRE-CONDITIONS
- *      sb                      Pointer to superblock to complete - never NULL.
- *      sb->s_dev               Device to read suberblock from.
- *      options                 Pointer to mount options.
- *      silent                  Silent flag.
- *
- * HISTORY
- *      July 1, 1997 - Andrew E. Mileski
- *      Written, tested, and released.
- */
 static int udf_fill_super(struct super_block *sb, void *options, int silent)
 {
         int i;
@@ -1913,19 +1897,6 @@ void udf_warning(struct super_block *sb, const char *function,
                sb->s_id, function, error_buf);
 }
 
-/*
- * udf_put_super
- *
- * PURPOSE
- *      Prepare for destruction of the superblock.
- *
- * DESCRIPTION
- *      Called before the filesystem is unmounted.
- *
- * HISTORY
- *      July 1, 1997 - Andrew E. Mileski
- *      Written, tested, and released.
- */
 static void udf_put_super(struct super_block *sb)
 {
         int i;
@@ -1961,19 +1932,6 @@ static void udf_put_super(struct super_block *sb)
         sb->s_fs_info = NULL;
 }
 
-/*
- * udf_stat_fs
- *
- * PURPOSE
- *      Return info about the filesystem.
- *
- * DESCRIPTION
- *      Called by sys_statfs()
- *
- * HISTORY
- *      July 1, 1997 - Andrew E. Mileski
- *      Written, tested, and released.
- */
 static int udf_statfs(struct dentry *dentry, struct kstatfs *buf)
 {
         struct super_block *sb = dentry->d_sb;