meta-starlingx/meta-stx-integ/recipes-support/drbd/drbd-utils/0009-Check-for-mounted-device-before-demoting-Primary-DRB.patch

   1 From 017157d21a56410811384a43d0b0cbba6444baeb Mon Sep 17 00:00:00 2001
   2 From: Don Penney <don.penney@windriver.com>
   3 Date: Wed, 6 Feb 2019 01:19:59 -0500
   4 Subject: [PATCH] Check for mounted device before demoting Primary DRBD
   5  resource
   6
   7 Update the OCF script to check for a mounted device when demoting
   8 a resource that's in the Primary state. The state change will fail
   9 if it is still in use, otherwise.
  10
  11 Signed-off-by: Don Penney <don.penney@windriver.com>
  12 ---
  13  scripts/drbd.ocf | 16 +++++++++++++++-
  14  1 file changed, 15 insertions(+), 1 deletion(-)
  15
  16 diff --git a/scripts/drbd.ocf b/scripts/drbd.ocf
  17 index e03bf6d..95da11a 100644
  18 --- a/scripts/drbd.ocf
  19 +++ b/scripts/drbd.ocf
  20 @@ -720,7 +720,21 @@ drbd_stop() {
  21                         ;;
  22                 $OCF_RUNNING_MASTER)
  23                         ocf_log warn "$DRBD_RESOURCE still Primary, demoting."
  24 -                       do_drbdadm secondary  $DRBD_RESOURCE
  25 +                       found=no
  26 +                       for dev in ${DRBD_DEVICES[@]} ""; do
  27 +                               cat /proc/mounts | grep -q "^${dev} "
  28 +                               if [ $? -eq 0 ]; then
  29 +                                       ocf_log warn "${DRBD_RESOURCE} is still mounted via $dev"
  30 +                                       found=yes
  31 +                                       break
  32 +                               fi
  33 +                       done
  34 +                       if [ "${found}" = "yes" ]; then
  35 +                               ocf_log warn "Waiting to drop $DRBD_RESOURCE"
  36 +                       else
  37 +                               ocf_log warn "Dropping $DRBD_RESOURCE to Secondary"
  38 +                               do_drbdadm secondary  $DRBD_RESOURCE
  39 +                       fi
  40                 esac
  41                 $first_try || sleep 1
  42                 first_try=false
  43 --
  44 1.8.3.1
  45