[PATCH 4/4] fs - remove unused have_submounts() function

[Ian Kent]

Having added the have_local_submounts() function there are no
remaining users of have_submounts() so remove it.

Signed-off-by: Ian Kent <raven@xxxxxxxxxx>
Cc: Al Viro <viro@xxxxxxxxxxxxxxxxxx>
Cc: Eric W. Biederman <ebiederm@xxxxxxxxxxxx>
Cc: Omar Sandoval <osandov@xxxxxxxxxxx>
---
 fs/dcache.c            |   33 ---------------------------------
 include/linux/dcache.h |    1 -
 2 files changed, 34 deletions(-)

diff --git a/fs/dcache.c b/fs/dcache.c
index 218166b..ad36f23 100644
--- a/fs/dcache.c
+++ b/fs/dcache.c
@@ -1279,39 +1279,6 @@ rename_retry:
  * list is non-empty and continue searching.
  */
 
-static enum d_walk_ret check_mount(void *data, struct dentry *dentry)
-{
-	int *ret = data;
-	if (d_mountpoint(dentry)) {
-		*ret = 1;
-		return D_WALK_QUIT;
-	}
-	return D_WALK_CONTINUE;
-}
-
-/**
- * have_submounts - check for mounts over a dentry
- * @parent: dentry to check.
- *
- * Return true if the parent or its subdirectories contain
- * a mount point
- */
-int have_submounts(struct dentry *parent)
-{
-	int ret = 0;
-
-	d_walk(parent, &ret, check_mount, NULL);
-
-	return ret;
-}
-EXPORT_SYMBOL(have_submounts);
-
-/*
- * Search for at least 1 mount point in the dentry's subdirs.
- * We descend to the next level whenever the d_subdirs
- * list is non-empty and continue searching.
- */
-
 static enum d_walk_ret check_local_mount(void *data, struct dentry *dentry)
 {
 	int *ret = data;
diff --git a/include/linux/dcache.h b/include/linux/dcache.h
index 796b358..7220683 100644
--- a/include/linux/dcache.h
+++ b/include/linux/dcache.h
@@ -254,7 +254,6 @@ extern struct dentry *d_find_alias(struct inode *);
 extern void d_prune_aliases(struct inode *);
 
 /* test whether we have any submounts in a subdir tree */
-extern int have_submounts(struct dentry *);
 extern int have_local_submounts(struct dentry *);
 
 /*