Commit f74e7b33 authored by Ian Kent's avatar Ian Kent Committed by Al Viro

vfs: remove unused have_submounts() function

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

Link: http://lkml.kernel.org/r/20161011053428.27645.12310.stgit@pluto.themaw.netSigned-off-by: default avatarIan 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>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarAl Viro <viro@zeniv.linux.org.uk>
parent 60359741
...@@ -1273,39 +1273,6 @@ static void d_walk(struct dentry *parent, void *data, ...@@ -1273,39 +1273,6 @@ static void d_walk(struct dentry *parent, void *data,
goto again; 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 check_mount {
struct vfsmount *mnt; struct vfsmount *mnt;
unsigned int mounted; unsigned int mounted;
......
...@@ -254,7 +254,6 @@ extern struct dentry *d_find_alias(struct inode *); ...@@ -254,7 +254,6 @@ extern struct dentry *d_find_alias(struct inode *);
extern void d_prune_aliases(struct inode *); extern void d_prune_aliases(struct inode *);
/* test whether we have any submounts in a subdir tree */ /* test whether we have any submounts in a subdir tree */
extern int have_submounts(struct dentry *);
extern int path_has_submounts(const struct path *); extern int path_has_submounts(const struct path *);
/* /*
......
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