From b90dc3cfe97ab113b39c1aeb8c0b329587c03a8f Mon Sep 17 00:00:00 2001
From: Alex Zhuravlev <bzzz@whamcloud.com>
Date: Wed, 22 Jan 2025 09:00:31 +0300
Subject: [PATCH] LU-18662 tests: skip fstrim on unsupported devices

if an underlying device doesn't support fstrim, then never try it
again.

Fixes: 6872cf9a36 ("LU-17722 tests: trim tmpfs from wait_delete_completed()")
Signed-off-by: Alex Zhuravlev <bzzz@whamcloud.com>
Change-Id: Ie7e49800ed0161c968e453a531b9701f3459a318
Reviewed-on: https://review.whamcloud.com/c/fs/lustre-release/+/57851
Tested-by: jenkins <devops@whamcloud.com>
Tested-by: Maloo <maloo@whamcloud.com>
Reviewed-by: Andreas Dilger <adilger@whamcloud.com>
Reviewed-by: Arshad Hussain <arshad.hussain@aeoncomputing.com>
Reviewed-by: Oleg Drokin <green@whamcloud.com>
---
 lustre/tests/test-framework.sh | 20 ++++++++++++++++++--
 1 file changed, 18 insertions(+), 2 deletions(-)

diff --git a/lustre/tests/test-framework.sh b/lustre/tests/test-framework.sh
index 2bbc39a..9307da2 100755
--- a/lustre/tests/test-framework.sh
+++ b/lustre/tests/test-framework.sh
@@ -2606,6 +2606,17 @@ start() {
 	mount_facet ${facet}
 	RC=$?
 
+	if [[ $RC == 0 && $facet == *ost* && $OSTDEVBASE == */tmp/* ]]; then
+		varname="${facet}_FSTRIM"
+		if [[ -z ${!varname} ]]; then
+			if do_facet ${facet} "fstrim -v $mntpt"; then
+				eval export $varname="yes"
+			else
+				eval export $varname="no"
+			fi
+		fi
+	fi
+
 	return $RC
 }
 
@@ -3966,14 +3977,19 @@ wait_destroy_complete () {
 
 fstrim_inram_devs() {
 	local i
+	local v
+	local pids
 
 	[[ "$(facet_fstype ost1)" = "ldiskfs" ]] || return 0
 	[[ $OSTDEVBASE == */tmp/* ]] || return 0
 
 	for (( i=1; i <= $OSTCOUNT; i++)); do
-		do_facet ost$i "fstrim -v $(facet_mntpt ost$i)" &
+		v="ost${i}_FSTRIM"
+		[[ ${!v} != "yes" ]] && continue
+		do_facet ost$i "fstrim $(facet_mntpt ost$i)" &
+		pids+=" $!"
 	done
-	wait
+	[[ -n $pids ]] && wait $pids
 
 	return 0
 }
-- 
1.8.3.1