kill find_inode_number()

the only remaining caller (in ncpfs) is guaranteed to return 0 -
we only hit it if we'd just checked that there's no dentry with
such name.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

fs/dcache.c

@@ -2984,35 +2984,6 @@ void d_tmpfile(struct dentry *dentry, struct inode *inode)
 }
 EXPORT_SYMBOL(d_tmpfile);
 
-/**
- * find_inode_number - check for dentry with name
- * @dir: directory to check
- * @name: Name to find.
- *
- * Check whether a dentry already exists for the given name,
- * and return the inode number if it has an inode. Otherwise
- * 0 is returned.
- *
- * This routine is used to post-process directory listings for
- * filesystems using synthetic inode numbers, and is necessary
- * to keep getcwd() working.
- */
- 
-ino_t find_inode_number(struct dentry *dir, struct qstr *name)
-{
-	struct dentry * dentry;
-	ino_t ino = 0;
-
-	dentry = d_hash_and_lookup(dir, name);
-	if (!IS_ERR_OR_NULL(dentry)) {
-		if (dentry->d_inode)
-			ino = dentry->d_inode->i_ino;
-		dput(dentry);
-	}
-	return ino;
-}
-EXPORT_SYMBOL(find_inode_number);
-
 static __initdata unsigned long dhash_entries;
 static int __init set_dhash_entries(char *str)
 {

fs/ncpfs/dir.c

@@ -659,8 +659,6 @@ ncp_fill_cache(struct file *file, struct dir_context *ctx,
 	if (!valid)
 		ctl.valid = 0;
 	if (!ctl.filled && (ctl.fpos == ctx->pos)) {
-		if (!ino)
-			ino = find_inode_number(dentry, &qname);
 		if (!ino)
 			ino = iunique(dir->i_sb, 2);
 		ctl.filled = !dir_emit(ctx, qname.name, qname.len,

include/linux/fs.h

@@ -2311,7 +2311,6 @@ extern struct file * open_exec(const char *);
 /* fs/dcache.c -- generic fs support functions */
 extern int is_subdir(struct dentry *, struct dentry *);
 extern int path_is_under(struct path *, struct path *);
-extern ino_t find_inode_number(struct dentry *, struct qstr *);
 
 #include <linux/err.h>