[PATCH] ext3 journalled quota locking fix

From: Jan Kara <jack@ucw.cz>

I've attached a fix for a problem in ext3 journalled quota patch - the problem
is that detecting whether dqput() sleeps was wrong and so we could possibly
schedule when holding a spinlock.

fs/dquot.c

@@ -642,7 +642,7 @@ static void add_dquot_ref(struct super_block *sb, int type)
 /* Return 0 if dqput() won't block (note that 1 doesn't necessarily mean blocking) */
 static inline int dqput_blocks(struct dquot *dquot)
 {
-	if (atomic_read(&dquot->dq_count) <= 1 && dquot_dirty(dquot))
+	if (atomic_read(&dquot->dq_count) <= 1)
 		return 1;
 	return 0;
 }