kpatch/SOURCES/0002-kpatch-clarify-unload-unsupport.patch
2021-11-11 09:01:12 +00:00

79 lines
2.4 KiB
Diff

kpatch: clarify that "kpatch unload" isn't supported
Add a user-prompt to the kpatch unload subcommand and make a similiar
mention in the manual page.
Provide an undocumented force option so that QE and dev scripts can
still run unload kpatch modules from scripts.
RHEL-only.
Signed-off-by: Joe Lawrence <joe.lawrence@redhat.com>
diff -Nupr kpatch-0.6.1.old/kpatch/kpatch kpatch-0.6.1/kpatch/kpatch
--- kpatch-0.9.2.old/kpatch/kpatch 2019-08-28 10:35:01.191259434 -0400
+++ kpatch-0.9.2/kpatch/kpatch 2019-08-28 16:11:13.067926576 -0400
@@ -49,8 +49,8 @@ usage () {
echo >&2
usage_cmd "load --all" "load all installed patch modules into the running kernel"
usage_cmd "load <module>" "load patch module into the running kernel"
- usage_cmd "unload --all" "unload all patch modules from the running kernel"
- usage_cmd "unload <module>" "unload patch module from the running kernel"
+ usage_cmd "unload --all (UNSUPPORTED)" "unload all patch modules from the running kernel"
+ usage_cmd "unload <module> (UNSUPPORTED)" "unload patch module from the running kernel"
echo >&2
usage_cmd "info <module>" "show information about a patch module"
echo >&2
@@ -71,6 +71,16 @@ die() {
exit 1
}
+confirm_prompt() {
+ local prompt="$1"
+ local answer
+ while true; do
+ read -rp "$prompt [Y/N] " answer
+ [[ $answer == 'Y' || $answer == 'y' ]] && return 0
+ [[ $answer == 'N' || $answer == 'n' ]] && return 1
+ done
+}
+
__find_module () {
MODULE="$1"
[[ -f "$MODULE" ]] && return
@@ -406,6 +416,19 @@ unset MODULE
init_sysfs_var
[[ "$#" -lt 1 ]] && usage
+
+# RHEL-specific support options
+case "$1" in
+"force")
+ # For scripting purposes, support "kpatch force unload".
+ # Shift out the "force" to avoid the user-prompt check below.
+ shift
+ ;;
+"unload")
+ confirm_prompt "WARNING: Red Hat doesn't support unloading of kpatches, continue anyway?" || exit 1
+ ;;
+esac
+
case "$1" in
"load")
[[ "$#" -ne 2 ]] && usage
diff -Nupr kpatch-0.6.1.old/man/kpatch.1 kpatch-0.6.1/man/kpatch.1
--- kpatch-0.9.2.old/man/kpatch.1 2019-08-28 10:35:01.191259434 -0400
+++ kpatch-0.9.2/man/kpatch.1 2019-08-28 14:51:23.268198897 -0400
@@ -23,10 +23,10 @@ load --all
load <module>
load patch module into the running kernel
-unload --all
+unload --all (UNSUPPORTED)
unload all patch modules from the running kernel
-unload <module>
+unload <module> (UNSUPPORTED)
unload patch module from the running kernel
info <module>