[PATCH 3/4] xfs_scrub_all: trigger automatic media scans once per month

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From: Darrick J. Wong <djwong@xxxxxxxxxx>

Teach the xfs_scrub_all background service to trigger an automatic scan
of all file data once per month.

Signed-off-by: Darrick J. Wong <djwong@xxxxxxxxxx>
---
 scrub/Makefile                 |    8 +++++++-
 scrub/xfs_scrub_all.cron.in    |    2 +-
 scrub/xfs_scrub_all.service.in |    2 +-
 3 files changed, 9 insertions(+), 3 deletions(-)


diff --git a/scrub/Makefile b/scrub/Makefile
index f773995dcd7..7434ac0ce4e 100644
--- a/scrub/Makefile
+++ b/scrub/Makefile
@@ -110,6 +110,9 @@ ifeq ($(HAVE_HDIO_GETGEO),yes)
 LCFLAGS += -DHAVE_HDIO_GETGEO
 endif
 
+# Automatically trigger a media scan once per month
+XFS_SCRUB_ALL_AUTO_MEDIA_SCAN_INTERVAL=1mo
+
 LDIRT = $(XFS_SCRUB_ALL_PROG) *.service *.cron
 
 default: depend $(LTCOMMAND) $(XFS_SCRUB_ALL_PROG) $(OPTIONAL_TARGETS)
@@ -135,11 +138,14 @@ install: $(INSTALL_SCRUB)
 		   -e "s|@pkg_lib_dir@|$(PKG_LIB_SCRIPT_DIR)|g" \
 		   -e "s|@pkg_state_dir@|$(PKG_STATE_DIR)|g" \
 		   -e "s|@pkg_name@|$(PKG_NAME)|g" \
+		   -e "s|@media_scan_interval@|$(XFS_SCRUB_ALL_AUTO_MEDIA_SCAN_INTERVAL)|g" \
 		   < $< > $@
 
 %.cron: %.cron.in $(builddefs)
 	@echo "    [SED]    $@"
-	$(Q)$(SED) -e "s|@sbindir@|$(PKG_SBIN_DIR)|g" < $< > $@
+	$(Q)$(SED) -e "s|@sbindir@|$(PKG_SBIN_DIR)|g" \
+		   -e "s|@media_scan_interval@|$(XFS_SCRUB_ALL_AUTO_MEDIA_SCAN_INTERVAL)|g" \
+		   < $< > $@
 
 install-systemd: default $(SYSTEMD_SERVICES)
 	$(INSTALL) -m 755 -d $(SYSTEMD_SYSTEM_UNIT_DIR)
diff --git a/scrub/xfs_scrub_all.cron.in b/scrub/xfs_scrub_all.cron.in
index 0ef97cc0ca8..d55d2ad2d89 100644
--- a/scrub/xfs_scrub_all.cron.in
+++ b/scrub/xfs_scrub_all.cron.in
@@ -3,4 +3,4 @@
 # Copyright (C) 2018 Oracle.  All Rights Reserved.
 # Author: Darrick J. Wong <djwong@xxxxxxxxxx>
 #
-10 3 * * 0 root test -e /run/systemd/system || @sbindir@/xfs_scrub_all
+10 3 * * 0 root test -e /run/systemd/system || @sbindir@/xfs_scrub_all --auto-media-scan-interval @media_scan_interval@
diff --git a/scrub/xfs_scrub_all.service.in b/scrub/xfs_scrub_all.service.in
index 4938404ee95..e831ad58eb8 100644
--- a/scrub/xfs_scrub_all.service.in
+++ b/scrub/xfs_scrub_all.service.in
@@ -12,7 +12,7 @@ After=paths.target multi-user.target network.target network-online.target system
 [Service]
 Type=oneshot
 Environment=SERVICE_MODE=1
-ExecStart=@sbindir@/xfs_scrub_all
+ExecStart=@sbindir@/xfs_scrub_all --auto-media-scan-interval @media_scan_interval@
 SyslogIdentifier=xfs_scrub_all
 
 # Create the service underneath the scrub background service slice so that we




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