-#ifndef _LTTNG_WRAPPER_PAGE_ALLOC_H
-#define _LTTNG_WRAPPER_PAGE_ALLOC_H
-
-/*
+/* SPDX-License-Identifier: (GPL-2.0 or LGPL-2.1)
+ *
* wrapper/page_alloc.h
*
* wrapper around get_pfnblock_flags_mask. Using KALLSYMS to get its address
* GPL modules.
*
* Copyright (C) 2015 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 "../lttng-kernel-version.h"
+#ifndef _LTTNG_WRAPPER_PAGE_ALLOC_H
+#define _LTTNG_WRAPPER_PAGE_ALLOC_H
+
+#include <lttng-kernel-version.h>
/*
* We need to redefine get_pfnblock_flags_mask to our wrapper, because
* the get_pageblock_migratetype() macro uses it.
*/
-#if defined(CONFIG_KALLSYMS) && (LINUX_VERSION_CODE >= KERNEL_VERSION(3,19,2))
+#if (defined(CONFIG_KALLSYMS) \
+ && (LINUX_VERSION_CODE >= KERNEL_VERSION(3,19,2) \
+ || LTTNG_KERNEL_RANGE(3,14,36, 3,15,0) \
+ || LTTNG_KERNEL_RANGE(3,18,10, 3,19,0) \
+ || LTTNG_DEBIAN_KERNEL_RANGE(3,16,7,9,0,0, 3,17,0,0,0,0) \
+ || LTTNG_UBUNTU_KERNEL_RANGE(3,16,7,34, 3,17,0,0)))
#define get_pfnblock_flags_mask wrapper_get_pfnblock_flags_mask
int wrapper_get_pfnblock_flags_mask_init(void);
-#else /* #if defined(CONFIG_KALLSYMS) && (LINUX_VERSION_CODE >= KERNEL_VERSION(3,19,2)) */
+#else
#include <linux/mm_types.h>
return 0;
}
-#endif /* else #if defined(CONFIG_KALLSYMS) && (LINUX_VERSION_CODE >= KERNEL_VERSION(3,19,2)) */
+#endif
+
+/*
+ * For a specific range of Ubuntu 3.13 kernels, we need to redefine
+ * get_pageblock_flags_mask to our wrapper, because the
+ * get_pageblock_migratetype() macro uses it. This function has been
+ * introduced into mainline within commit
+ * e58469bafd0524e848c3733bc3918d854595e20f, but never actually showed
+ * up in a stable kernel version, since it has been changed by commit
+ * dc4b0caff24d9b2918e9f27bc65499ee63187eba. Since Ubuntu chose to only
+ * backport the former commit but not the latter, we need to do a
+ * special case to cover this.
+ */
+#if (defined(CONFIG_KALLSYMS) \
+ && LTTNG_UBUNTU_KERNEL_RANGE(3,13,11,50, 3,14,0,0))
+
+#define get_pageblock_flags_mask wrapper_get_pageblock_flags_mask
+
+#include <linux/mm_types.h>
+
+int wrapper_get_pageblock_flags_mask_init(void);
+
+#else
+
+#include <linux/mm_types.h>
+
+static inline
+int wrapper_get_pageblock_flags_mask_init(void)
+{
+ return 0;
+}
+
+#endif
#endif /* _LTTNG_WRAPPER_PAGE_ALLOC_H */