add the link point to the original file for combining the diff

diff --git a/lustre/kernel_patches/scripts/patchfns b/lustre/kernel_patches/scripts/patchfns
index 92c0be1..78e494b 100644 (file)
--- a/lustre/kernel_patches/scripts/patchfns
+++ b/lustre/kernel_patches/scripts/patchfns
@@ -179,19 +179,23 @@ copy_file_to_bup()
        file=$1
        patch=$2
        bup="$file"~"$patch"
+       orig="$file"~"orig"
+       src_dir=`pwd`
 
        if [ -e $bup ]
        then
                echo "Cannot install file $file in patch $patch: backup $bup exists"
                exit 1
        fi
-
        if [ -e $file ]
        then
                cp -p $file "$file"~"$patch"
        else
                echo "file $file appears to be newly added"
        fi
+       if [ ! -L "$orig" ]; then
+               ln -s "$src_dir/$bup" $orig
+       fi      
 }
 
 install_file_in_patch()