kprobes: remove kernel version blacklist

[lttng-modules.git] / probes / lttng-kretprobes.c

diff --git a/probes/lttng-kretprobes.c b/probes/lttng-kretprobes.c
index d25862b1f451cc7b949985e895cc83625da02fab..2cc4927b353e0ef0bbd8b80d1f3472517ea10f18 100644 (file)
--- a/probes/lttng-kretprobes.c
+++ b/probes/lttng-kretprobes.c
@@ -1,23 +1,10 @@
-/*
-* probes/lttng-kretprobes.c
+/* SPDX-License-Identifier: (GPL-2.0-only or LGPL-2.1-only)
+ *
+ * probes/lttng-kretprobes.c
  *
  * LTTng kretprobes 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>
@@ -26,7 +13,6 @@
 #include <linux/kref.h>
 #include <lttng-events.h>
 #include <wrapper/ringbuffer/frontend_types.h>
-#include <wrapper/vmalloc.h>
 #include <wrapper/irqflags.h>
 #include <lttng-tracer.h>
 
@@ -142,21 +128,21 @@ int lttng_create_kprobe_event(const char *name, struct lttng_event *event,
        }
        fields[0].name = "ip";
        fields[0].type.atype = atype_integer;
-       fields[0].type.u.basic.integer.size = sizeof(unsigned long) * CHAR_BIT;
-       fields[0].type.u.basic.integer.alignment = lttng_alignof(unsigned long) * CHAR_BIT;
-       fields[0].type.u.basic.integer.signedness = lttng_is_signed_type(unsigned long);
-       fields[0].type.u.basic.integer.reverse_byte_order = 0;
-       fields[0].type.u.basic.integer.base = 16;
-       fields[0].type.u.basic.integer.encoding = lttng_encode_none;
+       fields[0].type.u.integer.size = sizeof(unsigned long) * CHAR_BIT;
+       fields[0].type.u.integer.alignment = lttng_alignof(unsigned long) * CHAR_BIT;
+       fields[0].type.u.integer.signedness = lttng_is_signed_type(unsigned long);
+       fields[0].type.u.integer.reverse_byte_order = 0;
+       fields[0].type.u.integer.base = 16;
+       fields[0].type.u.integer.encoding = lttng_encode_none;
 
        fields[1].name = "parent_ip";
        fields[1].type.atype = atype_integer;
-       fields[1].type.u.basic.integer.size = sizeof(unsigned long) * CHAR_BIT;
-       fields[1].type.u.basic.integer.alignment = lttng_alignof(unsigned long) * CHAR_BIT;
-       fields[1].type.u.basic.integer.signedness = lttng_is_signed_type(unsigned long);
-       fields[1].type.u.basic.integer.reverse_byte_order = 0;
-       fields[1].type.u.basic.integer.base = 16;
-       fields[1].type.u.basic.integer.encoding = lttng_encode_none;
+       fields[1].type.u.integer.size = sizeof(unsigned long) * CHAR_BIT;
+       fields[1].type.u.integer.alignment = lttng_alignof(unsigned long) * CHAR_BIT;
+       fields[1].type.u.integer.signedness = lttng_is_signed_type(unsigned long);
+       fields[1].type.u.integer.reverse_byte_order = 0;
+       fields[1].type.u.integer.base = 16;
+       fields[1].type.u.integer.encoding = lttng_encode_none;
 
        desc->owner = THIS_MODULE;
        event->desc = desc;
@@ -228,13 +214,6 @@ int lttng_kretprobes_register(const char *name,
        kref_init(&lttng_krp->kref_register);
        kref_get(&lttng_krp->kref_register);    /* inc refcount to 2, no overflow. */
 
-       /*
-        * Ensure the memory we just allocated don't trigger page faults.
-        * Well.. kprobes itself puts the page fault handler on the blacklist,
-        * but we can never be too careful.
-        */
-       wrapper_vmalloc_sync_all();
-
        ret = register_kretprobe(&lttng_krp->krp);
        if (ret)
                goto register_error;