qa/workunits/fs: test for cephfs rstats

Signed-off-by: "Yan, Zheng" <zyan@redhat.com>

diff --git a/qa/workunits/fs/misc/rstats.sh b/qa/workunits/fs/misc/rstats.sh
new file mode 100755 (executable)
index 0000000..4c32edb
--- /dev/null
+++ b/qa/workunits/fs/misc/rstats.sh
@@ -0,0 +1,80 @@
+#!/usr/bin/env bash
+
+set -x
+
+timeout=30
+old_value=""
+new_value=""
+
+wait_until_changed() {
+       name=$1
+       wait=0
+       while [ $wait -lt $timeout ]; do
+               new_value=`getfattr --only-value -n ceph.dir.$name .`
+               [ $new_value == $old_value ] || return 0
+               sleep 1
+               wait=$(($wait + 1))
+       done
+       return 1
+}
+
+check_rctime() {
+       old_sec=$(echo $old_value | cut -d. -f1)
+       old_nsec=$(echo $old_value | cut -d. -f2)
+       new_sec=$(echo $new_value | cut -d. -f1)
+       new_nsec=$(echo $new_value | cut -d. -f2)
+       [ "$old_sec" -lt "$new_sec" ] && return 0
+       [ "$old_sec" -gt "$new_sec" ] && return 1
+       [ "$old_nsec" -lt "$new_nsec" ] && return 0
+       return 1
+}
+
+# sync(3) does not make ceph-fuse flush dirty caps, because fuse kernel module
+# does not notify ceph-fuse about it. Use fsync(3) instead.
+fsync_path() {
+       cmd="import os; fd=os.open(\"$1\", os.O_RDONLY); os.fsync(fd); os.close(fd)"
+       python -c "$cmd"
+}
+
+set -e
+
+mkdir -p rstats_testdir/d1/d2
+cd rstats_testdir
+
+# rfiles
+old_value=`getfattr --only-value -n ceph.dir.rfiles .`
+[ $old_value == 0 ] || false
+touch d1/d2/f1
+wait_until_changed rfiles
+[ $new_value == $(($old_value + 1)) ] || false
+
+# rsubdirs
+old_value=`getfattr --only-value -n ceph.dir.rsubdirs .`
+[ $old_value == 3 ] || false
+mkdir d1/d2/d3
+wait_until_changed rsubdirs
+[ $new_value == $(($old_value + 1)) ] || false
+
+# rbytes
+old_value=`getfattr --only-value -n ceph.dir.rbytes .`
+[ $old_value == 0 ] || false
+echo hello > d1/d2/f2
+fsync_path d1/d2/f2
+wait_until_changed rbytes
+[ $new_value == $(($old_value + 6)) ] || false
+
+#rctime
+old_value=`getfattr --only-value -n ceph.dir.rctime .`
+touch d1/d2/d3 # touch existing file
+fsync_path d1/d2/d3
+wait_until_changed rctime
+check_rctime
+
+old_value=`getfattr --only-value -n ceph.dir.rctime .`
+touch d1/d2/f3 # create new file
+wait_until_changed rctime
+check_rctime
+
+cd ..
+rm -rf rstats_testdir
+echo OK