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Date: Sun, 28 Oct 2001 23:18:13 +0100
From: Jan Kara <jack@ucw.cz>
To: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: linux-kernel@vger.kernel.org, mason@suse.com
Subject: Quota fix
Message-ID: <20011028231813.F22960@atrey.karlin.mff.cuni.cz>
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  Hello,

  I'm sending you a small fix (thanks to Chris Mason for the patch)
which fixes possible list corruption when dquots are invalidated.
Please apply.

								Honza

PS to Chris: I simplified an condition a bit. Your was right too but
  I like being more careful and tell we block even if we don't.

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Index: 0.43/fs/dquot.c
--- 0.43/fs/dquot.c Mon, 15 Oct 2001 03:51:05 -0400 root (linux/i/40_dquot.c 1.1.2.1.3.1.1.1 644)
+++ 0.43(w)/fs/dquot.c Mon, 15 Oct 2001 14:12:57 -0400 root (linux/i/40_dquot.c 1.1.2.1.3.1.1.1 644)
@@ -1246,6 +1246,8 @@
 {
 	if (dquot->dq_dup_ref && dquot->dq_count - dquot->dq_dup_ref <= 1)
 		return 1;
+	if (dquot->dq_count <= 1) 
+		return 1; 
 	return 0;
 }
 

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