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-rw-r--r--fs/sysfs/bin.c204
1 files changed, 0 insertions, 204 deletions
diff --git a/fs/sysfs/bin.c b/fs/sysfs/bin.c
deleted file mode 100644
index 78899eeab97..00000000000
--- a/fs/sysfs/bin.c
+++ /dev/null
@@ -1,204 +0,0 @@
-/*
- * bin.c - binary file operations for sysfs.
- *
- * Copyright (c) 2003 Patrick Mochel
- * Copyright (c) 2003 Matthew Wilcox
- * Copyright (c) 2004 Silicon Graphics, Inc.
- */
-
-#undef DEBUG
-
-#include <linux/errno.h>
-#include <linux/fs.h>
-#include <linux/kobject.h>
-#include <linux/module.h>
-#include <linux/slab.h>
-
-#include <asm/uaccess.h>
-
-#include "sysfs.h"
-
-static int
-fill_read(struct dentry *dentry, char *buffer, loff_t off, size_t count)
-{
- struct bin_attribute * attr = to_bin_attr(dentry);
- struct kobject * kobj = to_kobj(dentry->d_parent);
-
- if (!attr->read)
- return -EIO;
-
- return attr->read(kobj, buffer, off, count);
-}
-
-static ssize_t
-read(struct file * file, char __user * userbuf, size_t count, loff_t * off)
-{
- char *buffer = file->private_data;
- struct dentry *dentry = file->f_dentry;
- int size = dentry->d_inode->i_size;
- loff_t offs = *off;
- int ret;
-
- if (count > PAGE_SIZE)
- count = PAGE_SIZE;
-
- if (size) {
- if (offs > size)
- return 0;
- if (offs + count > size)
- count = size - offs;
- }
-
- ret = fill_read(dentry, buffer, offs, count);
- if (ret < 0)
- return ret;
- count = ret;
-
- if (copy_to_user(userbuf, buffer, count))
- return -EFAULT;
-
- pr_debug("offs = %lld, *off = %lld, count = %zd\n", offs, *off, count);
-
- *off = offs + count;
-
- return count;
-}
-
-static int
-flush_write(struct dentry *dentry, char *buffer, loff_t offset, size_t count)
-{
- struct bin_attribute *attr = to_bin_attr(dentry);
- struct kobject *kobj = to_kobj(dentry->d_parent);
-
- if (!attr->write)
- return -EIO;
-
- return attr->write(kobj, buffer, offset, count);
-}
-
-static ssize_t write(struct file * file, const char __user * userbuf,
- size_t count, loff_t * off)
-{
- char *buffer = file->private_data;
- struct dentry *dentry = file->f_dentry;
- int size = dentry->d_inode->i_size;
- loff_t offs = *off;
-
- if (count > PAGE_SIZE)
- count = PAGE_SIZE;
- if (size) {
- if (offs > size)
- return 0;
- if (offs + count > size)
- count = size - offs;
- }
-
- if (copy_from_user(buffer, userbuf, count))
- return -EFAULT;
-
- count = flush_write(dentry, buffer, offs, count);
- if (count > 0)
- *off = offs + count;
- return count;
-}
-
-static int mmap(struct file *file, struct vm_area_struct *vma)
-{
- struct dentry *dentry = file->f_dentry;
- struct bin_attribute *attr = to_bin_attr(dentry);
- struct kobject *kobj = to_kobj(dentry->d_parent);
-
- if (!attr->mmap)
- return -EINVAL;
-
- return attr->mmap(kobj, attr, vma);
-}
-
-static int open(struct inode * inode, struct file * file)
-{
- struct kobject *kobj = sysfs_get_kobject(file->f_dentry->d_parent);
- struct bin_attribute * attr = to_bin_attr(file->f_dentry);
- int error = -EINVAL;
-
- if (!kobj || !attr)
- goto Done;
-
- /* Grab the module reference for this attribute if we have one */
- error = -ENODEV;
- if (!try_module_get(attr->attr.owner))
- goto Done;
-
- error = -EACCES;
- if ((file->f_mode & FMODE_WRITE) && !(attr->write || attr->mmap))
- goto Error;
- if ((file->f_mode & FMODE_READ) && !(attr->read || attr->mmap))
- goto Error;
-
- error = -ENOMEM;
- file->private_data = kmalloc(PAGE_SIZE, GFP_KERNEL);
- if (!file->private_data)
- goto Error;
-
- error = 0;
- goto Done;
-
- Error:
- module_put(attr->attr.owner);
- Done:
- if (error && kobj)
- kobject_put(kobj);
- return error;
-}
-
-static int release(struct inode * inode, struct file * file)
-{
- struct kobject * kobj = to_kobj(file->f_dentry->d_parent);
- struct bin_attribute * attr = to_bin_attr(file->f_dentry);
- u8 * buffer = file->private_data;
-
- if (kobj)
- kobject_put(kobj);
- module_put(attr->attr.owner);
- kfree(buffer);
- return 0;
-}
-
-struct file_operations bin_fops = {
- .read = read,
- .write = write,
- .mmap = mmap,
- .llseek = generic_file_llseek,
- .open = open,
- .release = release,
-};
-
-/**
- * sysfs_create_bin_file - create binary file for object.
- * @kobj: object.
- * @attr: attribute descriptor.
- *
- */
-
-int sysfs_create_bin_file(struct kobject * kobj, struct bin_attribute * attr)
-{
- BUG_ON(!kobj || !kobj->dentry || !attr);
-
- return sysfs_add_file(kobj->dentry, &attr->attr, SYSFS_KOBJ_BIN_ATTR);
-}
-
-
-/**
- * sysfs_remove_bin_file - remove binary file for object.
- * @kobj: object.
- * @attr: attribute descriptor.
- *
- */
-
-int sysfs_remove_bin_file(struct kobject * kobj, struct bin_attribute * attr)
-{
- sysfs_hash_and_remove(kobj->dentry,attr->attr.name);
- return 0;
-}
-
-EXPORT_SYMBOL_GPL(sysfs_create_bin_file);
-EXPORT_SYMBOL_GPL(sysfs_remove_bin_file);