LU-3254 llite: access layout version under a lock

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

diff --git a/lustre/tests/sanityn.sh b/lustre/tests/sanityn.sh
index 4b41dd6..8918f5d 100644 (file)
--- a/lustre/tests/sanityn.sh
+++ b/lustre/tests/sanityn.sh
@@ -2344,6 +2344,32 @@ test_51c() {
 }
 run_test 51c "layout lock: IT_LAYOUT blocked and correct layout can be returned"
 
+test_51d() {
+       dd if=/dev/zero of=/$DIR1/$tfile bs=1M count=1
+       cancel_lru_locks mdc
+
+       # open should grant LAYOUT lock, mmap and read will install pages
+       $MULTIOP $DIR1/$tfile oO_RDWR:SMR_Uc &
+       local PID=$!
+       sleep 1
+
+       # rss before revoking
+       local br=$(grep -A 10 $tfile /proc/$PID/smaps | awk '/^Rss/{print $2}')
+       echo "Before revoking layout lock: $br KB mapped"
+
+       # delete the file will revoke layout lock
+       rm -f $DIR2/$tfile
+
+       # rss after revoking
+       local ar=$(grep -A 10 $tfile /proc/$PID/smaps | awk '/^Rss/{print $2}')
+
+       kill -USR1 $PID
+       wait $PID || error
+
+       [ $ar -eq 0 ] || error "rss before: $br, after $ar, some pages remained"
+}
+run_test 51d "layout lock: losing layout lock should clean up memory map region"
+
 test_60() {
        [[ $(lustre_version_code $SINGLEMDS) -ge $(version_code 2.3.0) ]] ||
        { skip "Need MDS version at least 2.3.0"; return; }