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authorSteven Rostedt <rostedt@goodmis.org>2024-08-14 16:56:42 -0400
committerSteven Rostedt (Google) <rostedt@goodmis.org>2024-08-14 16:59:28 -0400
commitee057c8c194b9283f4137b253b70e292693a39f0 (patch)
tree4ee9868bfc432e0b1230016cd316468719f0b477 /kernel/livepatch/core.c
parentb96c312551b241bc17226c5347c6d6b38a1efd3e (diff)
parent7c626ce4bae1ac14f60076d00eafe71af30450ba (diff)
Merge tag 'v6.11-rc3' into trace/ring-buffer/core
The "reserve_mem" kernel command line parameter has been pulled into v6.11. Merge the latest -rc3 to allow the persistent ring buffer memory to be able to be mapped at the address specified by the "reserve_mem" command line parameter. Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Diffstat (limited to 'kernel/livepatch/core.c')
-rw-r--r--kernel/livepatch/core.c17
1 files changed, 14 insertions, 3 deletions
diff --git a/kernel/livepatch/core.c b/kernel/livepatch/core.c
index 52426665eecc..3c21c31796db 100644
--- a/kernel/livepatch/core.c
+++ b/kernel/livepatch/core.c
@@ -346,6 +346,7 @@ int klp_apply_section_relocs(struct module *pmod, Elf_Shdr *sechdrs,
* /sys/kernel/livepatch/<patch>/enabled
* /sys/kernel/livepatch/<patch>/transition
* /sys/kernel/livepatch/<patch>/force
+ * /sys/kernel/livepatch/<patch>/replace
* /sys/kernel/livepatch/<patch>/<object>
* /sys/kernel/livepatch/<patch>/<object>/patched
* /sys/kernel/livepatch/<patch>/<object>/<function,sympos>
@@ -401,7 +402,7 @@ static ssize_t enabled_show(struct kobject *kobj,
struct klp_patch *patch;
patch = container_of(kobj, struct klp_patch, kobj);
- return snprintf(buf, PAGE_SIZE-1, "%d\n", patch->enabled);
+ return sysfs_emit(buf, "%d\n", patch->enabled);
}
static ssize_t transition_show(struct kobject *kobj,
@@ -410,8 +411,7 @@ static ssize_t transition_show(struct kobject *kobj,
struct klp_patch *patch;
patch = container_of(kobj, struct klp_patch, kobj);
- return snprintf(buf, PAGE_SIZE-1, "%d\n",
- patch == klp_transition_patch);
+ return sysfs_emit(buf, "%d\n", patch == klp_transition_patch);
}
static ssize_t force_store(struct kobject *kobj, struct kobj_attribute *attr,
@@ -443,13 +443,24 @@ static ssize_t force_store(struct kobject *kobj, struct kobj_attribute *attr,
return count;
}
+static ssize_t replace_show(struct kobject *kobj,
+ struct kobj_attribute *attr, char *buf)
+{
+ struct klp_patch *patch;
+
+ patch = container_of(kobj, struct klp_patch, kobj);
+ return sysfs_emit(buf, "%d\n", patch->replace);
+}
+
static struct kobj_attribute enabled_kobj_attr = __ATTR_RW(enabled);
static struct kobj_attribute transition_kobj_attr = __ATTR_RO(transition);
static struct kobj_attribute force_kobj_attr = __ATTR_WO(force);
+static struct kobj_attribute replace_kobj_attr = __ATTR_RO(replace);
static struct attribute *klp_patch_attrs[] = {
&enabled_kobj_attr.attr,
&transition_kobj_attr.attr,
&force_kobj_attr.attr,
+ &replace_kobj_attr.attr,
NULL
};
ATTRIBUTE_GROUPS(klp_patch);