Fix: timer_expire_entry changed in 4.19.312

[lttng-modules.git] / lttng-context-prio.c

diff --git a/lttng-context-prio.c b/lttng-context-prio.c
deleted file mode 100644 (file)
index 84d5c5b..0000000
--- a/lttng-context-prio.c
+++ /dev/null
@@ -1,95 +0,0 @@
-/* SPDX-License-Identifier: (GPL-2.0-only or LGPL-2.1-only)
- *
- * lttng-context-prio.c
- *
- * LTTng priority context.
- *
- * Copyright (C) 2009-2012 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
- */
-
-#include <linux/module.h>
-#include <linux/slab.h>
-#include <linux/sched.h>
-#include <lttng-events.h>
-#include <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)
-{
-       size_t size = 0;
-
-       size += lib_ring_buffer_align(offset, lttng_alignof(int));
-       size += sizeof(int);
-       return size;
-}
-
-static
-void prio_record(struct lttng_ctx_field *field,
-               struct lib_ring_buffer_ctx *ctx,
-               struct lttng_channel *chan)
-{
-       int prio;
-
-       prio = wrapper_task_prio_sym(current);
-       lib_ring_buffer_align_ctx(ctx, lttng_alignof(prio));
-       chan->ops->event_write(ctx, &prio, sizeof(prio));
-}
-
-static
-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);
-}
-
-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)
-               return -ENOMEM;
-       if (lttng_find_context(*ctx, "prio")) {
-               lttng_remove_context_field(ctx, field);
-               return -EEXIST;
-       }
-       field->event_field.name = "prio";
-       field->event_field.type.atype = atype_integer;
-       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_mappings();
-       return 0;
-}
-EXPORT_SYMBOL_GPL(lttng_add_prio_to_ctx);