[PATCH 8/8] vfs - remove unused have_submounts() function

Ian Kent
2016-10-11T05:34:36Z

Now that path_has_submounts() has been added have_submounts() is no
longer used so remove it.

Signed-off-by: Ian Kent <raven@themaw.net>
Cc: Al Viro <viro@ZenIV.linux.org.uk>
Cc: Eric W. Biederman <ebiederm@xmission.com>
Cc: Omar Sandoval <osandov@osandov.com>
---
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 872f04e..719d8b4 100644
--- a/fs/dcache.c
+++ b/fs/dcache.c
@@ -1273,39 +1273,6 @@ static void d_walk(struct dentry *parent, void *data,
goto again;
}

-/*
- * 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_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);
-
struct check_mount {
struct vfsmount *mnt;
unsigned int mounted;
diff --git a/include/linux/dcache.h b/include/linux/dcache.h
index e351646..44a9a9b 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 path_has_submounts(struct path *);

/*