wrapper: remove inline_memcpy.h
[lttng-modules.git] / lttng-context-prio.c
index b5d21e7e9438bafee3779d483532745f1ec1e65b..972b1f4c66a5369c8d05aeb891b19f54fe66add8 100644 (file)
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: (GPL-2.0 or LGPL-2.1)
+/* SPDX-License-Identifier: (GPL-2.0-only or LGPL-2.1-only)
  *
  * lttng-context-prio.c
  *
 #include <linux/sched.h>
 #include <lttng-events.h>
 #include <wrapper/ringbuffer/frontend_types.h>
-#include <wrapper/vmalloc.h>
-#include <wrapper/kallsyms.h>
 #include <lttng-tracer.h>
 
-static
-int (*wrapper_task_prio_sym)(struct task_struct *t);
-
-int wrapper_task_prio_init(void)
-{
-       wrapper_task_prio_sym = (void *) kallsyms_lookup_funcptr("task_prio");
-       if (!wrapper_task_prio_sym) {
-               printk(KERN_WARNING "LTTng: task_prio symbol lookup failed.\n");
-               return -EINVAL;
-       }
-       return 0;
-}
-
 static
 size_t prio_get_size(size_t offset)
 {
@@ -46,7 +31,7 @@ void prio_record(struct lttng_ctx_field *field,
 {
        int prio;
 
-       prio = wrapper_task_prio_sym(current);
+       prio = task_prio(current);
        lib_ring_buffer_align_ctx(ctx, lttng_alignof(prio));
        chan->ops->event_write(ctx, &prio, sizeof(prio));
 }
@@ -56,19 +41,12 @@ void prio_get_value(struct lttng_ctx_field *field,
                struct lttng_probe_ctx *lttng_probe_ctx,
                union lttng_ctx_value *value)
 {
-       value->s64 = wrapper_task_prio_sym(current);
+       value->s64 = task_prio(current);
 }
 
 int lttng_add_prio_to_ctx(struct lttng_ctx **ctx)
 {
        struct lttng_ctx_field *field;
-       int ret;
-
-       if (!wrapper_task_prio_sym) {
-               ret = wrapper_task_prio_init();
-               if (ret)
-                       return ret;
-       }
 
        field = lttng_append_context(ctx);
        if (!field)
@@ -79,17 +57,16 @@ int lttng_add_prio_to_ctx(struct lttng_ctx **ctx)
        }
        field->event_field.name = "prio";
        field->event_field.type.atype = atype_integer;
-       field->event_field.type.u.basic.integer.size = sizeof(int) * CHAR_BIT;
-       field->event_field.type.u.basic.integer.alignment = lttng_alignof(int) * CHAR_BIT;
-       field->event_field.type.u.basic.integer.signedness = lttng_is_signed_type(int);
-       field->event_field.type.u.basic.integer.reverse_byte_order = 0;
-       field->event_field.type.u.basic.integer.base = 10;
-       field->event_field.type.u.basic.integer.encoding = lttng_encode_none;
+       field->event_field.type.u.integer.size = sizeof(int) * CHAR_BIT;
+       field->event_field.type.u.integer.alignment = lttng_alignof(int) * CHAR_BIT;
+       field->event_field.type.u.integer.signedness = lttng_is_signed_type(int);
+       field->event_field.type.u.integer.reverse_byte_order = 0;
+       field->event_field.type.u.integer.base = 10;
+       field->event_field.type.u.integer.encoding = lttng_encode_none;
        field->get_size = prio_get_size;
        field->record = prio_record;
        field->get_value = prio_get_value;
        lttng_context_update(*ctx);
-       wrapper_vmalloc_sync_all();
        return 0;
 }
 EXPORT_SYMBOL_GPL(lttng_add_prio_to_ctx);
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