LU-13578 test: use a single read() in sanity test_39r

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

diff --git a/lustre/tests/sanity.sh b/lustre/tests/sanity.sh
index 21e447a..c5995a4 100755 (executable)
--- a/lustre/tests/sanity.sh
+++ b/lustre/tests/sanity.sh
@@ -4632,7 +4632,8 @@ test_39r() {
 
        # exceed atime_diff and access file
        sleep 6
-       dd if=$DIR/$tfile of=/dev/null || error "can't udpate atime"
+       dd if=$DIR/$tfile of=/dev/null bs=4k count=1 ||
+               error "can't udpate atime"
 
        local atime_cli=$(stat -c %X $DIR/$tfile)
        echo "client atime: $atime_cli"