[PATCH] `event' removal: kill it

Final act, from Manfred:

The attached patch removes 'event' entirely from the kernel: it's not
used anymore.

All event users [vfat dentry revalidation; ext2/3 inode generation;
readdir() file position revalidation in several filesystems] were
converted to local counters.

fs/file_table.c

@@ -25,9 +25,6 @@ static LIST_HEAD(free_list);
 /* public *and* exported. Not pretty! */
 spinlock_t files_lock = SPIN_LOCK_UNLOCKED;
 
-/* file version */
-unsigned long event;
-
 /* Find an unused file structure and return a pointer to it.
  * Returns NULL, if there are no more free file structures or
  * we run out of memory.

include/linux/sched.h

@@ -3,8 +3,6 @@
 
 #include <asm/param.h>	/* for HZ */
 
-extern unsigned long event;
-
 #include <linux/config.h>
 #include <linux/capability.h>
 #include <linux/threads.h>

kernel/ksyms.c

@@ -552,7 +552,6 @@ EXPORT_SYMBOL(remove_inode_hash);
 EXPORT_SYMBOL(buffer_insert_list);
 EXPORT_SYMBOL(make_bad_inode);
 EXPORT_SYMBOL(is_bad_inode);
-EXPORT_SYMBOL(event);
 EXPORT_SYMBOL(__inode_dir_notify);
 
 #ifdef CONFIG_UID16