root/fs/file_table.c

/* */

DEFINITIONS

1. file_table_init
2. get_empty_filp

   1 /*
   2  *  linux/fs/file_table.c
   3  *
   4  *  Copyright (C) 1991, 1992  Linus Torvalds
   5  */
   6 
   7 #include <linux/fs.h>
   8 #include <linux/string.h>
   9 
  10 struct file file_table[NR_FILE];
  11 
  12 unsigned long file_table_init(unsigned long start, unsigned long end)
     /*  */
  13 {
  14         memset(file_table,0,sizeof(file_table));
  15         return start;
  16 }
  17 
  18 struct file * get_empty_filp(void)
     /*  */
  19 {
  20         int i;
  21         struct file * f = file_table+0;
  22 
  23         for (i = 0; i++ < NR_FILE; f++)
  24                 if (!f->f_count) {
  25                         memset(f,0,sizeof(*f));
  26                         f->f_count = 1;
  27                         return f;
  28                 }
  29         return NULL;
  30 }

/* */