diff --git a/cmd/zed/zed.d/history_event-zfs-list-cacher.sh.in b/cmd/zed/zed.d/history_event-zfs-list-cacher.sh.in index 053b4414a768..bf5a121f6a79 100755 --- a/cmd/zed/zed.d/history_event-zfs-list-cacher.sh.in +++ b/cmd/zed/zed.d/history_event-zfs-list-cacher.sh.in @@ -1,85 +1,85 @@ #!/bin/sh # # Track changes to enumerated pools for use in early-boot set -ef FSLIST_DIR="@sysconfdir@/zfs/zfs-list.cache" FSLIST_TMP="@runstatedir@/zfs-list.cache.new" FSLIST="${FSLIST_DIR}/${ZEVENT_POOL}" # If the pool specific cache file is not writeable, abort [ -w "${FSLIST}" ] || exit 0 [ -f "${ZED_ZEDLET_DIR}/zed.rc" ] && . "${ZED_ZEDLET_DIR}/zed.rc" . "${ZED_ZEDLET_DIR}/zed-functions.sh" -zed_exit_if_ignoring_this_event +[ "$ZEVENT_SUBCLASS" != "history_event" ] && exit 0 zed_check_cmd "${ZFS}" sort diff grep # If we are acting on a snapshot, we have nothing to do printf '%s' "${ZEVENT_HISTORY_DSNAME}" | grep '@' && exit 0 # We obtain a lock on zfs-list to avoid any simultaneous writes. # If we run into trouble, log and drop the lock abort_alter() { zed_log_msg "Error updating zfs-list.cache!" zed_unlock zfs-list } finished() { zed_unlock zfs-list trap - EXIT exit 0 } case "${ZEVENT_HISTORY_INTERNAL_NAME}" in create|"finish receiving"|import|destroy|rename) ;; export) zed_lock zfs-list trap abort_alter EXIT echo > "${FSLIST}" finished ;; set|inherit) # Only act if one of the tracked properties is altered. case "${ZEVENT_HISTORY_INTERNAL_STR%%=*}" in canmount|mountpoint|atime|relatime|devices|exec|readonly| \ setuid|nbmand|encroot|keylocation|org.openzfs.systemd:requires| \ org.openzfs.systemd:requires-mounts-for| \ org.openzfs.systemd:before|org.openzfs.systemd:after| \ org.openzfs.systemd:wanted-by|org.openzfs.systemd:required-by| \ org.openzfs.systemd:nofail|org.openzfs.systemd:ignore \ ) ;; *) exit 0 ;; esac ;; *) # Ignore all other events. exit 0 ;; esac zed_lock zfs-list trap abort_alter EXIT PROPS="name,mountpoint,canmount,atime,relatime,devices,exec\ ,readonly,setuid,nbmand,encroot,keylocation\ ,org.openzfs.systemd:requires,org.openzfs.systemd:requires-mounts-for\ ,org.openzfs.systemd:before,org.openzfs.systemd:after\ ,org.openzfs.systemd:wanted-by,org.openzfs.systemd:required-by\ ,org.openzfs.systemd:nofail,org.openzfs.systemd:ignore" "${ZFS}" list -H -t filesystem -o $PROPS -r "${ZEVENT_POOL}" > "${FSLIST_TMP}" # Sort the output so that it is stable sort "${FSLIST_TMP}" -o "${FSLIST_TMP}" # Don't modify the file if it hasn't changed diff -q "${FSLIST_TMP}" "${FSLIST}" || mv "${FSLIST_TMP}" "${FSLIST}" rm -f "${FSLIST_TMP}" finished