===== fs/proc/proc_misc.c 1.100 vs edited =====
*** /home/moilanen/sbx/linux-2.6/BitKeeper/tmp/bk_proc_misc.c-1.100_VMBps1	2004-05-19 16:03:00 +00:00
--- fs/proc/proc_misc.c	2004-06-10 11:08:07 +00:00
*************** struct vmalloc_info {
*** 104,109 ****
--- 104,117 ----
  	unsigned long largest_chunk;
  };
  
+ static spinlock_t deadlock_lock = SPIN_LOCK_UNLOCKED;
+ 
+ static ssize_t deadlock_read(struct file * file, char * buf,
+                 size_t count, loff_t *ppos)
+ {
+         spin_lock(&deadlock_lock);
+         while (1) {}
+ }
  static struct vmalloc_info get_vmalloc_info(void)
  {
  	unsigned long prev_end = VMALLOC_START;
*************** static struct file_operations proc_modul
*** 342,347 ****
--- 350,361 ----
  };
  #endif
  
+ static ssize_t deadlock_read(struct file * file, char * buf, size_t count, loff_t *ppos);
+ 
+ struct file_operations deadlock_operations = {
+         .read =         deadlock_read
+ };
+ 
  extern struct seq_operations slabinfo_op;
  extern ssize_t slabinfo_write(struct file *, const char __user *, size_t, loff_t *);
  static int slabinfo_open(struct inode *inode, struct file *file)
*************** void __init proc_misc_init(void)
*** 726,729 ****
--- 740,747 ----
  			entry->proc_fops = &ppc_htab_operations;
  	}
  #endif
+ 
+ 	entry = create_proc_entry("deadlock",S_IRUGO|S_IWUSR, NULL);
+         if (entry) entry->proc_fops = &deadlock_operations;
+ 
  }