LU-16025 llite: adjust read count as file got truncated

[fs/lustre-release.git] / lustre / tests / sanityn.sh

diff --git a/lustre/tests/sanityn.sh b/lustre/tests/sanityn.sh
index ed2cc2a..ae75881 100755 (executable)
--- a/lustre/tests/sanityn.sh
+++ b/lustre/tests/sanityn.sh
@@ -631,6 +631,51 @@ test_16h() {
 }
 run_test 16h "mmap read after truncate file"
 
+test_16i() {
+       local tf=$DIR/$tdir/$tfile
+       local tf2=$DIR2/$tdir/$tfile
+
+       test_mkdir $DIR/$tdir
+
+       # create file and populate data
+       cp /etc/passwd $tf || error "cp failed"
+
+       local size=$(stat -c %s $tf)
+
+       c1=$(dd if=$tf bs=1 2>/dev/null | od -x | tail -q -n4)
+       c2=$(dd if=$tf2 bs=1 2>/dev/null | od -x | tail -q -n4)
+
+       if [[ "$c1" != "$c2" ]]; then
+               echo "  ------- mount 1 read --------"
+               echo $c1
+               echo "  ------- mount 2 read --------"
+               echo $c2
+               error "content mismatch"
+       fi
+
+       echo "  ------- before truncate --------"
+       echo $c1
+
+       # truncate file
+       $TRUNCATE $tf $((size / 2)) || error "truncate file"
+
+       echo "  ------- after truncate --------"
+
+       # repeat the comparison
+       c1=$(dd if=$tf bs=1 2>/dev/null | od -x | tail -q -n4)
+       c2=$(dd if=$tf2 bs=1 2>/dev/null | od -x | tail -q -n4)
+
+       if [[ "$c1" != "$c2" ]]; then
+               echo "  ------- mount 1 read --------"
+               echo $c1
+               echo "  ------- mount 2 read --------"
+               echo $c2
+               error "content mismatch after truncate"
+       fi
+       echo $c2
+}
+run_test 16i "read after truncate file"
+
 test_17() { # bug 3513, 3667
        remote_ost_nodsh && skip "remote OST with nodsh" && return