diff mbox series

selftests/livepatch: wait for atomic replace to occur

Message ID 20240822163439.13092-1-rysulliv@redhat.com
State Accepted
Commit 052f3951640fd96d2e777b3272a925ec6c0c8100
Headers show
Series selftests/livepatch: wait for atomic replace to occur | expand

Commit Message

Ryan B. Sullivan Aug. 22, 2024, 4:34 p.m. UTC 
Uses 'loop_until' to wait for the atomic replace to unload all previous
livepatches, as on some machines with a large number of CPUs there is a
sizable delay between the atomic replace ocurring and when sysfs
updates accordingly.

Signed-off-by: Ryan Sullivan <rysulliv@redhat.com>
---
 tools/testing/selftests/livepatch/test-livepatch.sh | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)
diff mbox series

Patch

diff --git a/tools/testing/selftests/livepatch/test-livepatch.sh b/tools/testing/selftests/livepatch/test-livepatch.sh
index 65c9c058458d..bd13257bfdfe 100755
--- a/tools/testing/selftests/livepatch/test-livepatch.sh
+++ b/tools/testing/selftests/livepatch/test-livepatch.sh
@@ -139,11 +139,8 @@  load_lp $MOD_REPLACE replace=1
 grep 'live patched' /proc/cmdline > /dev/kmsg
 grep 'live patched' /proc/meminfo > /dev/kmsg
 
-mods=(/sys/kernel/livepatch/*)
-nmods=${#mods[@]}
-if [ "$nmods" -ne 1 ]; then
-	die "Expecting only one moduled listed, found $nmods"
-fi
+loop_until 'mods=(/sys/kernel/livepatch/*); nmods=${#mods[@]}; [[ "$nmods" -eq 1 ]]' ||
+        die "Expecting only one moduled listed, found $nmods"
 
 # These modules were disabled by the atomic replace
 for mod in $MOD_LIVEPATCH3 $MOD_LIVEPATCH2 $MOD_LIVEPATCH1; do