Warn and return on fd overflow fdt

[lttng-modules.git] / wrapper / page_alloc.c

diff --git a/wrapper/page_alloc.c b/wrapper/page_alloc.c
deleted file mode 100644 (file)
index 184ec71..0000000
--- a/wrapper/page_alloc.c
+++ /dev/null
@@ -1,68 +0,0 @@
-/*
- * wrapper/page_alloc.c
- *
- * wrapper around get_pfnblock_flags_mask. Using KALLSYMS to get its address
- * when available, else we need to have a kernel that exports this function to
- * 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"
-
-#if defined(CONFIG_KALLSYMS) && (LINUX_VERSION_CODE >= KERNEL_VERSION(3,19,2))
-
-#include <linux/kallsyms.h>
-#include <linux/mm_types.h>
-#include <linux/module.h>
-#include "kallsyms.h"
-#include "page_alloc.h"
-
-static
-unsigned long (*get_pfnblock_flags_mask_sym)(struct page *page,
-               unsigned long pfn,
-               unsigned long end_bitidx,
-               unsigned long mask);
-
-unsigned long wrapper_get_pfnblock_flags_mask(struct page *page,
-               unsigned long pfn,
-               unsigned long end_bitidx,
-               unsigned long mask)
-{
-       WARN_ON_ONCE(!get_pfnblock_flags_mask_sym);
-       if (get_pfnblock_flags_mask_sym) {
-               return get_pfnblock_flags_mask_sym(page, pfn, end_bitidx, mask);
-       } else {
-               return -ENOSYS;
-       }
-}
-EXPORT_SYMBOL_GPL(wrapper_get_pfnblock_flags_mask);
-
-int wrapper_get_pfnblock_flags_mask_init(void)
-{
-       get_pfnblock_flags_mask_sym =
-               (void *) kallsyms_lookup_funcptr("get_pfnblock_flags_mask");
-       if (!get_pfnblock_flags_mask_sym)
-               return -1;
-       return 0;
-}
-
-#else /* #if defined(CONFIG_KALLSYMS) && (LINUX_VERSION_CODE >= KERNEL_VERSION(3,19,2)) */
-
-#include <linux/pageblock-flags.h>
-
-#endif /* #else #if defined(CONFIG_KALLSYMS) && (LINUX_VERSION_CODE >= KERNEL_VERSION(3,19,2)) */