From: Erez Zadok <ezk@cs.sunysb.edu>
Date: Fri, 15 Feb 2008 22:18:48 +0000 (-0500)
Subject: Unionfs: improve debugging in copy_attr_times
X-Git-Url: https://git.fsl.cs.sunysb.edu/?a=commitdiff_plain;h=74a6647291900d368933d684d8c0f560870c60d3;p=unionfs-lite.git

Unionfs: improve debugging in copy_attr_times

Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
---

diff --git a/fs/unionfs/subr.c b/fs/unionfs/subr.c
index 68a628065fc..1a40f63ffbb 100644
--- a/fs/unionfs/subr.c
+++ b/fs/unionfs/subr.c
@@ -247,8 +247,14 @@ void unionfs_copy_attr_times(struct inode *upper)
 	int bindex;
 	struct inode *lower;
 
-	if (!upper || ibstart(upper) < 0)
+	if (!upper)
 		return;
+	if (ibstart(upper) < 0) {
+#ifdef CONFIG_UNION_FS_DEBUG
+		WARN_ON(ibstart(upper) < 0);
+#endif /* CONFIG_UNION_FS_DEBUG */
+		return;
+	}
 	for (bindex = ibstart(upper); bindex <= ibend(upper); bindex++) {
 		lower = unionfs_lower_inode_idx(upper, bindex);
 		if (!lower)