[PATCH v4 08/11] livepatch: Remove module_disable_ro() usage

Josh Poimboeuf
2020-04-29T15:25:43Z

With arch_klp_init_object_loaded() gone, and apply_relocate_add() now
using text_poke(), livepatch no longer needs to use module_disable_ro().

Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Joe Lawrence <joe.lawrence@redhat.com>
Acked-by: Miroslav Benes <mbenes@suse.cz>
---
kernel/livepatch/core.c | 2 --
1 file changed, 2 deletions(-)

diff --git a/kernel/livepatch/core.c b/kernel/livepatch/core.c
index f9ebb54affab..6b8b3c067be0 100644
--- a/kernel/livepatch/core.c
+++ b/kernel/livepatch/core.c
@@ -777,7 +777,6 @@ static int klp_init_object_loaded(struct klp_patch *patch,
if (klp_is_module(obj)) {

mutex_lock(&text_mutex);
- module_disable_ro(patch->mod);

/*
* Only write module-specific relocations here
@@ -787,7 +786,6 @@ static int klp_init_object_loaded(struct klp_patch *patch,
*/
ret = klp_apply_object_relocs(patch, obj);

- module_enable_ro(patch->mod, true);
mutex_unlock(&text_mutex);

if (ret)
--
2.21.1