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sysfs, kernfs: move sysfs_open_file to include/linux/kernfs.h

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sysfs_open_file will be used as the primary handle for kernfs methods.
Move its definition from fs/sysfs/file.c to include/linux/kernfs.h and
mark the public and private fields.

This is pure relocation.

Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Tejun Heo 2013-11-28 14:54:20 -05:00 committed by Greg Kroah-Hartman
parent c6fb449515
commit dd8a5b036b
2 changed files with 18 additions and 11 deletions
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11
fs/sysfs/file.c
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@ -47,17 +47,6 @@ struct sysfs_open_dirent {
struct list_head files; /* goes through sysfs_open_file.list */
};
struct sysfs_open_file {
struct sysfs_dirent *sd;
struct file *file;
struct mutex mutex;
int event;
struct list_head list;
bool mmapped;
const struct vm_operations_struct *vm_ops;
};
static bool sysfs_is_bin(struct sysfs_dirent *sd)
{
return sysfs_type(sd) == SYSFS_KOBJ_BIN_ATTR;

18
include/linux/kernfs.h
View File

@ -9,12 +9,30 @@
#include <linux/kernel.h>
#include <linux/err.h>
#include <linux/list.h>
#include <linux/mutex.h>
struct file;
struct iattr;
struct seq_file;
struct vm_area_struct;
struct sysfs_dirent;
struct sysfs_open_file {
/* published fields */
struct sysfs_dirent *sd;
struct file *file;
/* private fields, do not use outside kernfs proper */
struct mutex mutex;
int event;
struct list_head list;
bool mmapped;
const struct vm_operations_struct *vm_ops;
};
#ifdef CONFIG_SYSFS
struct sysfs_dirent *kernfs_create_dir_ns(struct sysfs_dirent *parent,