sysfs, kernfs: introduce kernfs_remove[_by_name[_ns]]()

Introduce kernfs removal interfaces - kernfs_remove() and
kernfs_remove_by_name[_ns]().

These are just renames of sysfs_remove() and sysfs_hash_and_remove().
No functional changes.

v2: Dummy kernfs_remove_by_name_ns() for !CONFIG_SYSFS updated to
    return -ENOSYS instead of 0.

Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

1 files changed, 24 insertions, 0 deletions

diff --git a/include/linux/kernfs.h b/include/linux/kernfs.h
index 254b9e872b09..83e151ad0619 100644
--- a/include/linux/kernfs.h
+++ b/include/linux/kernfs.h
@@ -7,6 +7,30 @@
 #ifndef __LINUX_KERNFS_H
 #define __LINUX_KERNFS_H
 
+#include <linux/kernel.h>
+
 struct sysfs_dirent;
 
+#ifdef CONFIG_SYSFS
+
+void kernfs_remove(struct sysfs_dirent *sd);
+int kernfs_remove_by_name_ns(struct sysfs_dirent *parent, const char *name,
+                             const void *ns);
+
+#else   /* CONFIG_SYSFS */
+
+static inline void kernfs_remove(struct sysfs_dirent *sd) { }
+
+static inline int kernfs_remove_by_name_ns(struct sysfs_dirent *parent,
+                                           const char *name, const void *ns)
+{ return -ENOSYS; }
+
+#endif  /* CONFIG_SYSFS */
+
+static inline int kernfs_remove_by_name(struct sysfs_dirent *parent,
+                                        const char *name)
+{
+        return kernfs_remove_by_name_ns(parent, name, NULL);
+}
+
 #endif  /* __LINUX_KERNFS_H */