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#ifndef __LINUX_FILE_H
#define __LINUX_FILE_H
extern inline struct file * fget(unsigned long fd)
{
struct file * file = NULL;
if (fd < NR_OPEN) {
file = current->files->fd[fd];
if (file)
file->f_count++;
}
return file;
}
extern int __fput(struct file *);
extern void insert_file_free(struct file *file);
/* It does not matter which list it is on. */
extern inline void remove_filp(struct file *file)
{
if(file->f_next)
file->f_next->f_pprev = file->f_pprev;
*file->f_pprev = file->f_next;
}
extern inline int fput(struct file *file)
{
int count = file->f_count-1;
int error = 0;
if (!count) {
error = __fput(file);
file->f_count = 0;
remove_filp(file);
insert_file_free(file);
} else
file->f_count = count;
return error;
}
extern inline void put_filp(struct file *file)
{
if(--file->f_count == 0) {
remove_filp(file);
insert_file_free(file);
}
}
#endif
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