LU-14102 tests: add a pause in open-close in sanity/160l

so that close has to update mtime and generate CL_MTIME
record in the changelog.

Signed-off-by: Alex Zhuravlev <bzzz@whamcloud.com>
Change-Id: I118172229c86ed5c201299de7476678689bf4cab
Reviewed-on: https://review.whamcloud.com/40508
Tested-by: jenkins <devops@whamcloud.com>
Reviewed-by: Andreas Dilger <adilger@whamcloud.com>
Reviewed-by: John L. Hammond <jhammond@whamcloud.com>
Tested-by: Maloo <maloo@whamcloud.com>
Reviewed-by: Oleg Drokin <green@whamcloud.com>

diff --git a/lustre/tests/sanity.sh b/lustre/tests/sanity.sh
index 8a6313d..0fdeb78 100755 (executable)
--- a/lustre/tests/sanity.sh
+++ b/lustre/tests/sanity.sh
@@ -15174,8 +15174,7 @@ test_160l() {
        compare_mtime_changelog $DIR/$tdir/$tfile
 
        # Test CL_MTIME during close
-       dd if=/dev/urandom of=$DIR/$tdir/${tfile}_2 bs=1M count=64 ||
-               error "cannot create file $DIR/$tdir/${tfile}_2"
+       $MULTIOP $DIR/$tdir/${tfile}_2 O_2w4096c || error "multiop failed"
        compare_mtime_changelog $DIR/$tdir/${tfile}_2
 }
 run_test 160l "Verify that MTIME changelog records contain the parent FID"