From: Erez Zadok <ezk@cs.sunysb.edu>
Date: Tue, 6 Sep 2011 01:38:35 +0000 (-0400)
Subject: Unionfs: force only one open lower file after copyup in open(2)
X-Git-Url: https://git.fsl.cs.stonybrook.edu/?a=commitdiff_plain;h=1e2510afaa1369dc2767036958716ed30d2c1a68;p=unionfs-2.6.28.y.git

Unionfs: force only one open lower file after copyup in open(2)

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

diff --git a/fs/unionfs/commonfops.c b/fs/unionfs/commonfops.c
index 1301074407e..b154ccc95e1 100644
--- a/fs/unionfs/commonfops.c
+++ b/fs/unionfs/commonfops.c
@@ -505,8 +505,11 @@ static int __open_file(struct inode *inode, struct file *file,
 			for (bindex = bstart - 1; bindex >= 0; bindex--) {
 				err = copyup_file(parent->d_inode, file,
 						  bstart, bindex, size);
-				if (!err)
+				if (!err) {
+					/* only one regular file open */
+					fbend(file) = fbstart(file);
 					break;
+				}
 			}
 			return err;
 		} else {