[JFFS2] Prevent ino cache removal for inodes in use

Don't remove inocache for inodes which are in read_inode() or
clear_inode() until they're done.

Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
diff --git a/fs/jffs2/nodelist.h b/fs/jffs2/nodelist.h
index 8c12283..57f675c 100644
--- a/fs/jffs2/nodelist.h
+++ b/fs/jffs2/nodelist.h
@@ -7,7 +7,7 @@
  *
  * For licensing information, see the file 'LICENCE' in this directory.
  *
- * $Id: nodelist.h,v 1.127 2005/02/09 09:23:53 pavlov Exp $
+ * $Id: nodelist.h,v 1.128 2005/02/27 23:01:32 dwmw2 Exp $
  *
  */
 
@@ -135,6 +135,7 @@
 #define INO_STATE_CHECKEDABSENT	3	/* Checked, cleared again */
 #define INO_STATE_GC		4	/* GCing a 'pristine' node */
 #define INO_STATE_READING	5	/* In read_inode() */
+#define INO_STATE_CLEARING	6	/* In clear_inode() */
 
 #define INOCACHE_HASHSIZE 128