patch-2.3.30 linux/fs/ufs/truncate.c

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diff -u --recursive --new-file v2.3.29/linux/fs/ufs/truncate.c linux/fs/ufs/truncate.c
@@ -63,7 +63,7 @@
 #define DIRECT_FRAGMENT ((inode->i_size + uspi->s_fsize - 1) >> uspi->s_fshift)
 
 #define DATA_BUFFER_USED(bh) \
-	(atomic_read(&bh->b_count) || buffer_locked(bh))
+	(atomic_read(&bh->b_count)>1 || buffer_locked(bh))
 
 static int ufs_trunc_direct (struct inode * inode)
 {

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