LU-2901 mdt: duplicate link names in directory

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

diff --git a/lustre/tests/sanity.sh b/lustre/tests/sanity.sh
index 3f8badb..20599f5 100644 (file)
--- a/lustre/tests/sanity.sh
+++ b/lustre/tests/sanity.sh
@@ -2111,6 +2111,29 @@ test_31n() {
 }
 run_test 31n "check link count of unlinked file"
 
 }
 run_test 31n "check link count of unlinked file"
 

+link_one() {
+       local TEMPNAME=$(mktemp $1_XXXXXX)
+       mlink $TEMPNAME $1 2> /dev/null &&
+               echo "$BASHPID: link $TEMPNAME to $1 succeeded"
+       munlink $TEMPNAME
+}
+
+test_31o() { # LU-2901
+       mkdir -p $DIR/$tdir
+       for LOOP in $(seq 100); do
+               rm -f $DIR/$tdir/$tfile*
+               for THREAD in $(seq 8); do
+                       link_one $DIR/$tdir/$tfile.$LOOP &
+               done
+               wait
+               local LINKS=$(ls -1 $DIR/$tdir | grep -c $tfile.$LOOP)
+               [ $LINKS -gt 1 ] && ls $DIR/$tdir &&
+                       error "$LINKS duplicate links to $tfile.$LOOP" &&
+                       break || true
+       done
+}
+run_test 31o "duplicate hard links with same filename"
+

 cleanup_test32_mount() {
        trap 0
        $UMOUNT $DIR/$tdir/ext2-mountpoint
 cleanup_test32_mount() {
        trap 0
        $UMOUNT $DIR/$tdir/ext2-mountpoint