X-Git-Url: https://git.lttng.org/?a=blobdiff_plain;f=lttng-context-perf-counters.c;h=9887c6d208a27917d6f467ec3234811722d8cba1;hb=173f7d83002d5e4b47f67c63ee0367011e80333c;hp=8afc11f89019a9aea251c8b68cb2f39aa47b00da;hpb=ce4a2f0c273d4077c6eb9e6e0f28379ddaf61382;p=lttng-modules.git

diff --git a/lttng-context-perf-counters.c b/lttng-context-perf-counters.c
index 8afc11f8..9887c6d2 100644
--- a/lttng-context-perf-counters.c
+++ b/lttng-context-perf-counters.c
@@ -1,23 +1,10 @@
-/*
+/* SPDX-License-Identifier: (GPL-2.0 or LGPL-2.1)
+ *
  * lttng-context-perf-counters.c
  *
  * LTTng performance monitoring counters (perf-counters) integration module.
  *
  * Copyright (C) 2009-2012 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; only
- * version 2.1 of the License.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  */
 
 #include <linux/module.h>
@@ -72,7 +59,7 @@ void perf_counter_record(struct lttng_ctx_field *field,
 	chan->ops->event_write(ctx, &value, sizeof(value));
 }
 
-#if defined(CONFIG_PERF_EVENTS) && (LINUX_VERSION_CODE >= KERNEL_VERSION(3,0,99))
+#if defined(CONFIG_PERF_EVENTS) && (LINUX_VERSION_CODE >= KERNEL_VERSION(3,1,0))
 static
 void overflow_callback(struct perf_event *event,
 		       struct perf_sample_data *data,
@@ -119,7 +106,7 @@ void lttng_destroy_perf_counter_field(struct lttng_ctx_field *field)
 #endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,10,0)) */
 	kfree(field->event_field.name);
 	kfree(field->u.perf_counter->attr);
-	kfree(events);
+	lttng_kvfree(events);
 	kfree(field->u.perf_counter);
 }
 
@@ -237,7 +224,7 @@ int lttng_add_perf_counter_to_ctx(uint32_t type,
 	int ret;
 	char *name_alloc;
 
-	events = kzalloc(num_possible_cpus() * sizeof(*events), GFP_KERNEL);
+	events = lttng_kvzalloc(num_possible_cpus() * sizeof(*events), GFP_KERNEL);
 	if (!events)
 		return -ENOMEM;
 
@@ -334,7 +321,7 @@ int lttng_add_perf_counter_to_ctx(uint32_t type,
 	field->u.perf_counter = perf_field;
 	lttng_context_update(*ctx);
 
-	wrapper_vmalloc_sync_all();
+	wrapper_vmalloc_sync_mappings();
 	return 0;
 
 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,10,0))
@@ -372,6 +359,6 @@ name_alloc_error:
 error_alloc_perf_field:
 	kfree(attr);
 error_attr:
-	kfree(events);
+	lttng_kvfree(events);
 	return ret;
 }