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| author | Petr Mladek <pmladek@suse.com> | 2019-02-04 14:56:50 +0100 |
|---|---|---|
| committer | Petr Mladek <pmladek@suse.com> | 2019-02-06 10:49:30 +0100 |
| commit | ecba29f434a8fa333356d54d2491d174c4aab8de (patch) | |
| tree | 5b094d13703679b37c690bc6b0db2ad4d324fd00 /kernel/livepatch | |
| parent | livepatch: core: Return EOPNOTSUPP instead of ENOSYS (diff) | |
| download | linux-ecba29f434a8fa333356d54d2491d174c4aab8de.tar.xz linux-ecba29f434a8fa333356d54d2491d174c4aab8de.zip | |
livepatch: Introduce klp_for_each_patch macro
There are already macros to iterate over struct klp_func and klp_object.
Add also klp_for_each_patch(). But make it internal because also
klp_patches list is internal.
Suggested-by: Josh Poimboeuf <jpoimboe@redhat.com>
Acked-by: Miroslav Benes <mbenes@suse.cz>
Acked-by: Joe Lawrence <joe.lawrence@redhat.com>
Signed-off-by: Petr Mladek <pmladek@suse.com>
Diffstat (limited to 'kernel/livepatch')
| -rw-r--r-- | kernel/livepatch/core.c | 8 | ||||
| -rw-r--r-- | kernel/livepatch/core.h | 6 | ||||
| -rw-r--r-- | kernel/livepatch/transition.c | 2 |
3 files changed, 11 insertions, 5 deletions
diff --git a/kernel/livepatch/core.c b/kernel/livepatch/core.c index 5fc98a1cc3c3..4b7f55d9e89c 100644 --- a/kernel/livepatch/core.c +++ b/kernel/livepatch/core.c @@ -554,7 +554,7 @@ static int klp_add_nops(struct klp_patch *patch) struct klp_patch *old_patch; struct klp_object *old_obj; - list_for_each_entry(old_patch, &klp_patches, list) { + klp_for_each_patch(old_patch) { klp_for_each_object(old_patch, old_obj) { int err; @@ -1089,7 +1089,7 @@ void klp_discard_replaced_patches(struct klp_patch *new_patch) { struct klp_patch *old_patch, *tmp_patch; - list_for_each_entry_safe(old_patch, tmp_patch, &klp_patches, list) { + klp_for_each_patch_safe(old_patch, tmp_patch) { if (old_patch == new_patch) return; @@ -1133,7 +1133,7 @@ static void klp_cleanup_module_patches_limited(struct module *mod, struct klp_patch *patch; struct klp_object *obj; - list_for_each_entry(patch, &klp_patches, list) { + klp_for_each_patch(patch) { if (patch == limit) break; @@ -1180,7 +1180,7 @@ int klp_module_coming(struct module *mod) */ mod->klp_alive = true; - list_for_each_entry(patch, &klp_patches, list) { + klp_for_each_patch(patch) { klp_for_each_object(patch, obj) { if (!klp_is_module(obj) || strcmp(obj->name, mod->name)) continue; diff --git a/kernel/livepatch/core.h b/kernel/livepatch/core.h index e6200f38701f..ec43a40b853f 100644 --- a/kernel/livepatch/core.h +++ b/kernel/livepatch/core.h @@ -7,6 +7,12 @@ extern struct mutex klp_mutex; extern struct list_head klp_patches; +#define klp_for_each_patch_safe(patch, tmp_patch) \ + list_for_each_entry_safe(patch, tmp_patch, &klp_patches, list) + +#define klp_for_each_patch(patch) \ + list_for_each_entry(patch, &klp_patches, list) + void klp_free_patch_start(struct klp_patch *patch); void klp_discard_replaced_patches(struct klp_patch *new_patch); void klp_discard_nops(struct klp_patch *new_patch); diff --git a/kernel/livepatch/transition.c b/kernel/livepatch/transition.c index 300273819674..a3a6f32c6fd0 100644 --- a/kernel/livepatch/transition.c +++ b/kernel/livepatch/transition.c @@ -642,6 +642,6 @@ void klp_force_transition(void) for_each_possible_cpu(cpu) klp_update_patch_state(idle_task(cpu)); - list_for_each_entry(patch, &klp_patches, list) + klp_for_each_patch(patch) patch->forced = true; } |