From 155eb55d5cec3e3acecefac89722a985592fca5b Mon Sep 17 00:00:00 2001
From: Erez Zadok <ezk@cs.sunysb.edu>
Date: Sun, 25 Nov 2007 14:46:53 -0500
Subject: [PATCH] Update unlink/rmdir to reflect new policy for whiteout
 creation

Now we don't create a whiteout on the branch in which the object is being
deleted, if there's no chance that an even lower-priority branch could have
the same named file exposed.
---
 t-rmdir.sh           | 19 ++++++++++++++-----
 t-unlink-whiteout.sh |  8 --------
 2 files changed, 14 insertions(+), 13 deletions(-)

diff --git a/t-rmdir.sh b/t-rmdir.sh
index 93a6b58..b7f46f2 100755
--- a/t-rmdir.sh
+++ b/t-rmdir.sh
@@ -7,9 +7,7 @@ function directories {
 cat <<FILES
 d $TOP_LOWER_DIR
 d $LOWER_DIR0
-d $LOWER_DIR0/d6
 d $LOWER_DIR1
-d $LOWER_DIR1/d5
 d $LOWER_DIR1/d1
 d $LOWER_DIR1/d1/d2
 d $LOWER_DIR1/d1/d2/d3
@@ -35,6 +33,9 @@ FILES
 function beforefiles {
 cat <<FILES
 d $LOWER_DIR0/d1
+d $LOWER_DIR0/d6
+d $LOWER_DIR1/d5
+d $LOWER_DIR2/d7
 d $LOWER_DIR0/d1/d2
 f $LOWER_DIR0/d1/.wh.x
 f $LOWER_DIR0/d1/d2/.wh.d3
@@ -47,18 +48,20 @@ function afterfiles_rw {
 cat <<FILES
 
 f $LOWER_DIR0/.wh.d1
-f $LOWER_DIR0/.wh.y
+f $LOWER_DIR1/.wh.d5
 
 FILES
 }
 
 
-
 function afterfiles_ro {
 cat <<FILES
 
+d $LOWER_DIR1/d5
+d $LOWER_DIR2/d7
 f $LOWER_DIR0/.wh.d1
-f $LOWER_DIR0/.wh.y
+f $LOWER_DIR0/.wh.d5
+f $LOWER_DIR0/.wh.d7
 
 FILES
 }
@@ -72,6 +75,9 @@ mount_union "" $LOWER_DIR0 $LOWER_DIR1 $LOWER_DIR2
 mkdir $MOUNTPOINT/y
 mkdir $MOUNTPOINT/d1/x
 mkdir $MOUNTPOINT/d1/d2/d3
+rmdir $MOUNTPOINT/d5
+rmdir $MOUNTPOINT/d6
+rmdir $MOUNTPOINT/d7
 rm -fr $MOUNTPOINT/d1
 rm -fr $MOUNTPOINT/y
 
@@ -88,6 +94,9 @@ mount_union "" $LOWER_DIR0 $LOWER_DIR1=ro $LOWER_DIR2=ro
 mkdir $MOUNTPOINT/y
 mkdir $MOUNTPOINT/d1/x
 mkdir $MOUNTPOINT/d1/d2/d3
+rmdir $MOUNTPOINT/d5
+rmdir $MOUNTPOINT/d6
+rmdir $MOUNTPOINT/d7
 rm -fr $MOUNTPOINT/d1
 rm -fr $MOUNTPOINT/y
 
diff --git a/t-unlink-whiteout.sh b/t-unlink-whiteout.sh
index d12ea2b..5f6619a 100755
--- a/t-unlink-whiteout.sh
+++ b/t-unlink-whiteout.sh
@@ -73,16 +73,11 @@ cat <<FILES
 f $LOWER_DIR0/.wh.a
 f $LOWER_DIR1/a
 
-f $LOWER_DIR1/.wh.b
-
 f $LOWER_DIR0/.wh.c
 f $LOWER_DIR1/c
 
 f $LOWER_DIR0/.wh.d
 
-f $LOWER_DIR1/d1/d2/.wh.e
-
-f $LOWER_DIR1/.wh.g
 FILES
 }
 
@@ -113,7 +108,6 @@ f $LOWER_DIR0/a
 f $LOWER_DIR1/a
 
 f $LOWER_DIR0/b
-f $LOWER_DIR1/.wh.b
 
 f $LOWER_DIR0/c
 f $LOWER_DIR1/c
@@ -121,10 +115,8 @@ f $LOWER_DIR1/c
 f $LOWER_DIR0/d
 
 f $LOWER_DIR0/d1/d2/e
-f $LOWER_DIR1/d1/d2/.wh.e
 
 f $LOWER_DIR0/g
-f $LOWER_DIR1/.wh.g
 FILES
 }
 
-- 
2.43.0