sysfs, kernfs: add skeletons for kernfs
Core sysfs implementation will be separated into kernfs so that it can
be used by other non-kobject users.
This patch creates fs/kernfs/ directory and makes boilerplate changes.
kernfs interface will be directly based on sysfs_dirent and its
forward declaration is moved to include/linux/kernfs.h which is
included from include/linux/sysfs.h. sysfs core implementation will
be gradually separated out and moved to kernfs.
This patch doesn't introduce any functional changes.
v2: mount.c added.
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: linux-fsdevel@vger.kernel.org
Cc: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/include/linux/kernfs.h b/include/linux/kernfs.h
new file mode 100644
index 0000000..254b9e8
--- /dev/null
+++ b/include/linux/kernfs.h
@@ -0,0 +1,12 @@
+/*
+ * kernfs.h - pseudo filesystem decoupled from vfs locking
+ *
+ * This file is released under the GPLv2.
+ */
+
+#ifndef __LINUX_KERNFS_H
+#define __LINUX_KERNFS_H
+
+struct sysfs_dirent;
+
+#endif /* __LINUX_KERNFS_H */
diff --git a/include/linux/sysfs.h b/include/linux/sysfs.h
index 362a34d..e17381a 100644
--- a/include/linux/sysfs.h
+++ b/include/linux/sysfs.h
@@ -12,6 +12,7 @@
#ifndef _SYSFS_H_
#define _SYSFS_H_
+#include <linux/kernfs.h>
#include <linux/compiler.h>
#include <linux/errno.h>
#include <linux/list.h>
@@ -175,8 +176,6 @@
ssize_t (*store)(struct kobject *, struct attribute *, const char *, size_t);
};
-struct sysfs_dirent;
-
#ifdef CONFIG_SYSFS
int sysfs_schedule_callback(struct kobject *kobj, void (*func)(void *),